from:"Satya"


If I create a content provider to service a live folder, and if this
content provider is just a wrapper aggregating other content
providers, how does the live folder know if the real content has
changed somewhere down the line.

For example, I have a live folder that has items pointing to video,
audio, and notes. Each item in the cursor (such as an aggregated
matrix cursor) may be pointing to a different underlying content
provider. But each item will have its own uri.

Does the live folder view register for content changes for each uri?
Or is it the responsibility of the wrapper content provider to
register for content changes and then notify its client the live
folder?

Appreciate your help
Satya

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[android-developers] How does "requery" know what the original where clause is that returned the cursor?


I know that in a content provider "query" method one can indicate to
the cursor a "notify uri". The cursor knows what this uri is. Does the
cursor uses this uri to update itself? Does it result in a call to
"query" method of the contentprovider for a query. How does the cursor
know what the additional where clause arguments are?

thanks for help
Satya

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[android-developers] Re: How does "requery" know what the original where clause is that returned the cursor?


Looks like it is the responsibility of the cursor to do this and
remember the where clauses. So it won't go back to the content
provider for retrieving data.

That makes me wonder what happens to such things as MatrixCursor that
doesn't seem to have a specific "requery" semantics.

On Wed, Apr 22, 2009 at 3:20 PM, Satya Komatineni
 wrote:
> I know that in a content provider "query" method one can indicate to
> the cursor a "notify uri". The cursor knows what this uri is. Does the
> cursor uses this uri to update itself? Does it result in a call to
> "query" method of the contentprovider for a query. How does the cursor
> know what the additional where clause arguments are?
>
> thanks for help
> Satya
>

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[android-developers] Re: How do live folders register for change in content?


Dianne,
thanks for the reply.

In that case the updates to the view will rely on the "requery" method
of the cursor that is used. This will work for an SQLLiteCursor
because its "requery" method goes back to the data source to retrieve
the rows.

But if I were to use something like "MatrixCursor" which doesn't have
a specific "requery" mechanism, I will have to build that refresh
logic in  a derived cursor class. Is this interpretation right?

Satya

On Wed, Apr 22, 2009 at 3:55 PM, Dianne Hackborn  wrote:
> Is the same thing as anything else showing a cursor -- it looks for data
> change callbacks that are generated by the content provider when its data
> changes.
>
> On Wed, Apr 22, 2009 at 8:21 AM, Satya Komatineni
>  wrote:
>>
>> If I create a content provider to service a live folder, and if this
>> content provider is just a wrapper aggregating other content
>> providers, how does the live folder know if the real content has
>> changed somewhere down the line.
>>
>> For example, I have a live folder that has items pointing to video,
>> audio, and notes. Each item in the cursor (such as an aggregated
>> matrix cursor) may be pointing to a different underlying content
>> provider. But each item will have its own uri.
>>
>> Does the live folder view register for content changes for each uri?
>> Or is it the responsibility of the wrapper content provider to
>> register for content changes and then notify its client the live
>> folder?
>>
>> Appreciate your help
>> Satya
>>
>>
>
>
>
> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support, and so won't reply to such e-mails.  All such
> questions should be posted on public forums, where I and others can see and
> answer them.
>
>
> >
>

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[android-developers] Re: How do live folders register for change in content?


Dianne, Mark,
Thank you both for looking into this
Satya

On Wed, Apr 22, 2009 at 7:50 PM, Mark Murphy  wrote:
>
>>     But if I were to use something like "MatrixCursor" which doesn't have
>>     a specific "requery" mechanism, I will have to build that refresh
>>     logic in  a derived cursor class. Is this interpretation right?
>
> Yes that interpretation should be correct.
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 2.0 Available!
>
> >
>

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[android-developers] Here is some sample code for a live folder example

2009-04-24 Thread Satya Komatineni


http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3014&ownerUserId=satya

If you see any errors or discrepancies, I will appreciate it if you let me know

Thanks
Satya

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[android-developers] Re: "R cannot be resolved" after updating to 1.5 SDK Pre, and trying to compile for 1.1

2009-04-27 Thread Satya Komatineni


considering that R.java is a generated file, try deleting it and see
if the environment rebuilds according to your preference.


On Mon, Apr 27, 2009 at 8:57 AM, hc  wrote:
>
> I updated to 1.5 SDK pre, together with the ADT. I followed the
> instruction to select Android 1.5 as target by right clicking on the
> project, Preferences>Android. In this window there are 3 options,
> Android 1.1
> Android 1.5
> Google APIs
>
> I selected Android 1.5 and Apply, clicked OK. Application compiled
> nicely.
>
> If I go back to the same Preferences and select Android 1.1, Apply, I
> can no longer compile my application successfully.
> I get hundreds of the same error
> R cannot be resolved
>
> Then I try to open this project in another computer that I have not
> updated the SDK yet. I get the same error. Can anyone help to solve
> this? I'm trapped until the new SDK is out.
> >
>

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Re: [android-developers] Re: Failed to fetch URL https://dl-ssl.google.com/android/repository/repository.xml

2009-11-16 Thread Satya Komatineni

On windows/XP I couldn't make this work directly from the AVD manager by itself.

I had to do it through the Eclipse plugin for ADT (which in turn can
invoke the AVD manager internally in eclipse)

Must be something to do with jdk version or the java version when run
outside(I am thinking)

Here are few more notes if you are trying this on windows:

http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3001&ownerUserId=satya

Satya

On Mon, Nov 16, 2009 at 6:24 AM, JuanEG  wrote:
> Hi, I had the same problem in Ubuntu 9.10 and solved it thanks to
> StLin comment.
> Cheers.
> Juan
>
> On 1 nov, 03:48, MobileDev  wrote:
>> I too am running running on Ubuntu version 9.10 as well.
>>
>> Adding sdkman.force.http=true to ~/.android/androidtool.cfg allowed me
>> to retrieve the Sites, Packages, and Archives via the Android SDK and
>> AVD Manager.
>>
>> However, nothing happens when I select one of the and click "Install
>> Selected" (button), nothing happens, when I select one of the items
>> from the list to install by clicking on "install selected".
>>
>> Any help will be greatly appreciated.
>>
>> On Oct 30, 10:13 am, Hans  wrote:
>>
>> > Adding sdkman.force.http=true to ~/.android/androidtool.cfg allowed me
>> > to retrieve the Sites, Packages, and Archives via the Android SDK and
>> > AVD Manager.
>>
>> > However, when I select, for example, "SDK Platform Android 2.0, API 5,
>> > revision 1", and click "Install Selected" (button), nothing happens.
>>
>> > I am running on Ubuntu version 9.10 x64 (released version).  The
>> > machine has 4GB RAM.  JDK 6-15-1, via the Synaptic Package Manager, is
>> > installed (along with the dependencies).
>>
>> > On Oct 29, 1:24 pm, Xavier Ducrohet  wrote:
>>
>> > > On Wed, Oct 28, 2009 at 9:23 PM, orange80  wrote:
>>
>> > > > We already know about that... our problem is that the "force http"
>> > > > workaround DOES NOT work for us either.
>>
>> > > which, frankly, is mind boggling.
>> > > Can you give me the exact output of the status window in the SDK
>> > > Manager when you try to update from the repository?
>>
>> > > Also, can you tell me which JDK you are using, OS config, etc..
>>
>> > > thanks!
>> > > Xav
>>
>> > > --
>> > > Xavier Ducrohet
>> > > Android SDK Tech Lead
>> > > Google Inc.
>>
>> > > Please do not send me questions directly. Thanks!
>
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Re: [android-developers] onNewIntent() is never called when use Icons

2009-11-16 Thread Satya Komatineni

Hopefully you have figured out what the problem is.

I can't say I fully understand it.

But one thing is sure with "onNewIntent()". I have looked at it when I
was configuring an activity on behalf of "search" functionality.

This method is invoked ONLY IF this activity is on top of the visible
stack. That means if you are navigating somewhere else to invoke your
icons, and if this activity is not on top because of that, then the
"onNewIntent()" is not invoked.

Typically if this activity is to invoke itself for whatever reason, or
a service is to invoke it while it is on top then you will see the
"onNewIntent()".

Hope this is useful

Satya
(http://www.satyakomatineni.com)

On Sat, Nov 14, 2009 at 6:58 AM, João Sauer  wrote:
> Hi,
>
> What I'm trying to do was supposed to be very simple, but is not
> working. :)
> I would like to have 2 Icons that will call my activity, that is the
> only one in the package.
> But, when the activity is called, I would like to know which of these
> Icons was used.
> In the logs, I'm able to see that the Intent sent asap after press the
> icon is sending this message like:
> I(  569:0x23d) Starting activity: Intent
> { action=android.intent.action.MAIN categories=
> {android.intent.category.LAUNCHER} flags=0x1020 comp={teste.teste/
> teste.teste.alias1} }
>
> But, my override of onNewIntent is never called and the onResume is
> receiving a modified version of the Intent:
> D(  896:0x380) Intent is Intent { action=android.intent.action.MAIN
> categories={android.intent.category.LAUNCHER} flags=0x1020 comp=
> {teste.teste/teste.teste.mainapp} }
>
> As you can see, the alias1 packagename was modified to mainapp. And
> because of this, I'm unable to check which button was applied.
>
> My code in the manifest file is simple:
>  
>             android:launchMode="singleTop">
>                        
>                                 android:name="android.intent.action.MAIN" />
>                        
>                
>                 android:icon="@drawable/icon" android:targetActivity=".mainapp"
> android:launchMode="singleTop" >
>                        
>                                 android:name="android.intent.action.MAIN" />
>                                 android:name="android.intent.category.LAUNCHER" />
>                        
>                
>                 android:icon="@drawable/icon" android:targetActivity=".mainapp"
> android:launchMode="singleTop">
>                        
>                                 android:name="android.intent.action.MAIN" />
>                                 android:name="android.intent.category.LAUNCHER" />
>                        
>                
>                
>                        
>                                 android:name="android.intent.action.BOOT_COMPLETED" />
>                                 android:name="android.intent.category.HOME" />
>                        
>                
>        
>
> As you can see, I'm using the singleTop definition, as a requirement
> for onNewIntent call.
>
> Any ideas what could be wrong here? Or, How can I have a way to check
> which Icon was used to call my Acitivity?
>
> Thank you,
> Joao Sauer
>
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[android-developers] Re: AppAccelerator for Android and iPhone

2009-08-11 Thread Satya Komatineni

I am positive on the approach that "Titanium" and other appcelerator
products are taking for applicationd development.

I am currently doing a bit of research to see the capabilities.

You can take a look at the larger set of my notes here:

http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3263&ownerUserId=satya

At a high level Titanium seems to be a wrapper around "webkit" which
forms the core of many open source browsers including chrome, android,
safari, firefox etc.

Titanium supplements the 'webit' capabilities with some needed apis
from the native os platform which includes such things as android,
iphone, windows etc.

It doesnt look like a big deal on the initial thought, but combine it
with something like "jquery" which gives all of a sudden legs to
webkit allowing you to:

1. Render html and forms in your native app
2. run javascript in your native app
3. use javascript and jquery (or an equivalent) tool to create rich UIs

I haven't gotten to the "android" interface yet but I will report on
it as soon as I get a good sample app running,

I think this gives an "additional" tool kit for someone that is
working on Android. This may or may completely replace your android
development model but supplements it immensely.

The power of titanium comes from familiar technologies: webkit,
javascript, jquery, etc.

This is what I gathered in the last few days playing with it.
Hope this helps
Satya

On Mon, Aug 10, 2009 at 5:56 AM, Premier wrote:
>
> does someone knows and uses appaccelerator (http://
> www.appcelerator.com/products/titanium-mobile/) for android? What do
> you think about?
> >
>

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[android-developers] Re: AppAccelerator for Android and iPhone

2009-08-11 Thread Satya Komatineni


By the way this is also a similar approach taken by "Adobe AIR" and
advanced IDEs like "Aptana Studio" can provide the needed IDE support
around these ideas.

Satya

On Tue, Aug 11, 2009 at 8:12 AM, Satya
Komatineni wrote:
> I am positive on the approach that "Titanium" and other appcelerator
> products are taking for applicationd development.
>
> I am currently doing a bit of research to see the capabilities.
>
> You can take a look at the larger set of my notes here:
>
> http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3263&ownerUserId=satya
>
> At a high level Titanium seems to be a wrapper around "webkit" which
> forms the core of many open source browsers including chrome, android,
> safari, firefox etc.
>
> Titanium supplements the 'webit' capabilities with some needed apis
> from the native os platform which includes such things as android,
> iphone, windows etc.
>
> It doesnt look like a big deal on the initial thought, but combine it
> with something like "jquery" which gives all of a sudden legs to
> webkit allowing you to:
>
> 1. Render html and forms in your native app
> 2. run javascript in your native app
> 3. use javascript and jquery (or an equivalent) tool to create rich UIs
>
> I haven't gotten to the "android" interface yet but I will report on
> it as soon as I get a good sample app running,
>
> I think this gives an "additional" tool kit for someone that is
> working on Android. This may or may completely replace your android
> development model but supplements it immensely.
>
> The power of titanium comes from familiar technologies: webkit,
> javascript, jquery, etc.
>
> This is what I gathered in the last few days playing with it.
> Hope this helps
> Satya
>
>
>
> On Mon, Aug 10, 2009 at 5:56 AM, Premier wrote:
>>
>> does someone knows and uses appaccelerator (http://
>> www.appcelerator.com/products/titanium-mobile/) for android? What do
>> you think about?
>> >>
>>
>

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[android-developers] Re: any development book for new guy?

2009-08-15 Thread Satya Komatineni

I must disclose first that I am one of the co-authors of the
Pro-Android. So you shouldn't consider this a good recommendation.

The book was set to release when 1.5 was just released also. So we
worked the 1.5 content very late in the book. This content is covered
in the last chapters. This content includes

Chapter 12 Coming to Grips with 1.5
 Installing the ADT Plug-in for Android 1.5 Development
 Getting Started with Android 1.5
 Creating an Android Virtual Device
 Exploring Improvements to the Media Framework
 Using the MediaRecorder Class for Video Capture.
 Exploring the MediaStore Class
 Scanning the Media Store for Media Content
 Exploring Voice Recognition
 Introducing the Input-Method Framework

Chapter 13 Simplifying OpenGL and Exploring Live Folders
  Simplifying OpenGL
  Reimplementing the Simple Triangle OpenGL Drawing
  OpenGL Animation Example
  Exploring Live Folders
  How a User Experiences Live Folders
  Building a Live Folder
 The Future of Android and the 1.5 SDK
  Key Online Resources for the 1.5 SDK

we are in the process reorganizing the content for a december release
of the book as well.

Hope this helps.

Satya Komatineini
http://www.satyakomatineni.com

On Sat, Aug 15, 2009 at 5:03 PM, bboyes wrote:
>
> Not an e-book, but Pro Android from apress covers 1.5. It seems very
> well written but does neglect to tell you to create the avd in the
> hello world example.
>
> Bruce
> >
>

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[android-developers] why would a javascript "alert" doesn't show on a locally loaded html file through webkit?

2009-08-18 Thread Satya Komatineni


If an html file is locally loaded from the assets directory into the
webkit and if that html has an "alert" on it, what could be a reason
it won't show a dialog?

Thanks
Satya

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[android-developers] Does anyone know if the "donut" branch if built will have the sample programs that usually come with a release?

2009-08-26 Thread Satya Komatineni


Does anyone know if the "donut" branch if built will have the sample
programs that usually come with a release?

Thanks
Satya

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[android-developers] Is it possible to build a "windows" distribution of a "donut" release?

2009-08-26 Thread Satya Komatineni


Is it possible to build a "windows" distribution of a "donut" release?

Thanks
Satya

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[android-developers] Re: Donut Development Environment

2009-09-05 Thread Satya Komatineni


Al,
Thank you. this is great help
Satya

On Sat, Sep 5, 2009 at 11:04 AM, Al Sutton  wrote:
>
> If you want to play with the Donut SDK & ADT eclipse plug-in, I've just built 
> them both from the open source repository and you can get them at;
>
> http://andappstore.com/AndroidApplications/sdk/
>
> The latest code from the repo includes the WVGA and QVGA skins and the 
> supports-screens manifest tag (and who knows what else) so it might be worth 
> giving your apps a spin to see how the look on bigger and smaller screens.
>
> Remember: These are built from the open repository, so don't expect any 
> support from the Google guys as their repo may have a different set of 
> sprinkles.
>
> Al.
>
> --
>
> * Looking for Android apps?, try http://andappstore.com/ *
>
> ==
> Funky Android Limited is registered in England & Wales with the
> company number  6741909. The registered head office is Kemp House,
> 152-160 City Road, London,  EC1V 2NX, UK.
>
> The views expressed in this email are those of the author and not
> necessarily those of Funky Android Limited, it's associates, or it's
> subsidiaries.
>
>
>
> >
>

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[android-developers] will the device wake up if there is a widget instance on the homepage but the widget provider or receiver is disabled?

2009-09-16 Thread Satya Komatineni


will the device wake up if there is a widget instance on the homepage
but the widget provider or receiver is disabled?

If I have a widget instance on the home page, but if I were to disable
the widget provider from receiving messages by disabling the
component, and if I have no components receiving the messages targeted
for that widget, will Android still wake up the device?

Thanks
Satya

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[android-developers] Re: will the device wake up if there is a widget instance on the homepage but the widget provider or receiver is disabled?

2009-09-16 Thread Satya Komatineni


Diane,
Perhaps I got my question wrong. But the following url

http://developer.android.com/guide/topics/appwidgets/index.html

indicates that

""Note: If the device is asleep when it is time for an update (as
defined by updatePeriodMillis), then the device will wake up in order
to perform the update. "

This is based on 1.5.

Thanks again
Satya

On Wed, Sep 16, 2009 at 3:51 PM, Dianne Hackborn  wrote:
> It doesn't wake up for app widgets at all.  Alarms wake up the device, if
> they are using a type that does so.
>
> On Wed, Sep 16, 2009 at 12:29 PM, Satya Komatineni
>  wrote:
>>
>> will the device wake up if there is a widget instance on the homepage
>> but the widget provider or receiver is disabled?
>>
>> If I have a widget instance on the home page, but if I were to disable
>> the widget provider from receiving messages by disabling the
>> component, and if I have no components receiving the messages targeted
>> for that widget, will Android still wake up the device?
>>
>> Thanks
>> Satya
>>
>>
>
>
>
> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support, and so won't reply to such e-mails.  All such
> questions should be posted on public forums, where I and others can see and
> answer them.
>
>
> >
>

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[android-developers] Can I keep a broadcast receiver process alive by creating a service that stays around?

2009-09-16 Thread Satya Komatineni


The app widget documentation indicates that the "widget provider"
being a receiver of a broadcast service may not exist (the process)
beyond the completion of the call.

If I want to maintain state between two broadcast events, such as say
widgetProvider.onUpdate(), can I start a local service and leave it
hanging there until my widgets are disabled? If I didn't explicitly
stop that service will it be loaded again and resumed when the device
wakes up.

Thanks
Satya

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[android-developers] Re: Can I keep a broadcast receiver process alive by creating a service that stays around?

2009-09-17 Thread Satya Komatineni


Mark,

thanks for the response.


You are right if the state can be kept in a persistent store, it is
the way to go.

However if you want the widget to be a window to what a service does,
can one of the buttons on a widget start the service, stop the
service, and also collect some stats from the servcie.

In such a case can the widget provider and the service stay in the apk
file and can the update messages rely on the static variables that the
service keeps around.

Thanks
Satya

On Thu, Sep 17, 2009 at 5:59 AM, Mark Murphy  wrote:
>
> Satya Komatineni wrote:
>> The app widget documentation indicates that the "widget provider"
>> being a receiver of a broadcast service may not exist (the process)
>> beyond the completion of the call.
>>
>> If I want to maintain state between two broadcast events, such as say
>> widgetProvider.onUpdate(), can I start a local service and leave it
>> hanging there until my widgets are disabled? If I didn't explicitly
>> stop that service will it be loaded again and resumed when the device
>> wakes up.
>
> Oh, please don't. There should be no need to keep a service in memory
> just to maintain some state. Since the app widget itself does not reside
> in your process, the widget framework allows you to keep your widget up
> to date without consuming much memory.
>
> Just persist whatever state you want to a file, SharedPreferences,
> database, etc.
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://twitter.com/commonsguy
>
> Need help for your Android OSS project? http://wiki.andmob.org/hado
>
> >
>

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[android-developers] Can I have multiple widgets in the same apk file?

2009-09-18 Thread Satya Komatineni


The configuration seem to allow it, however both widgets show up with
the same label in the "widget list".

I guess it may be a bad idea to do so as well due to shared space and
multiple widgets needing to behave quite differently with different
requirements.

Thanks
Satya

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[android-developers] An approach and very drafty sample code for utilizing "models" for storing widget state..

2009-09-21 Thread Satya Komatineni


I have been experimenting with widgets for a few days, and I needed a
simple abstract means of saving the widget state.

I want to be able to do something like the following:

private void updateAppWidget(String name, String dob)
{
   //create a widget model with its own data
   BDayWidgetModel m = new BDayWidgetModel(mAppWidgetId,name,dob);

   //paint it
   updateAppWidget(this,AppWidgetManager.getInstance(this),m);

   //save it for next time
   m.save(this);
}

To accomodate this I have used a widget model abstraction where a
derived widget model will identiy some of its members as persistable
and knows how to set them back when retrieved.

This allowed me to quickly accomodate all kinds of widget models and
not think about persistence model all the time.

Anyway, if you want to get to the source code you can use the following link

http://www.knowledgefolders.com/akc/display?url=DisplayNoteIMPURL&reportId=3307&ownerUserId=satya

Now this is a very drafty work around or framework, however you deem
to call it. I can see a handfull of variants that can make this lot
bettter, but this is quick and dirty for your experimental work.

Hope this is useful to someone
Satya

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[android-developers] Re: Widget and views

2009-09-22 Thread Satya Komatineni


My understanding is the same as well. You have access to these view
objects only through the RemoteViews class.

Here is the API for that
http://developer.android.com/reference/android/widget/RemoteViews.html

So you seem to have only limited functionality exposed through this
class.  The exposed functionality include a few gets and sets and then
you can register an onclick event.

And as per the docs the only views allowed are

FrameLayout
LinearLayout
RelativeLayout

AnalogClock
Button
Chronometer
ImageButton
ImageView
ProgressBar
TextView


Satya


On Tue, Sep 22, 2009 at 12:39 PM, nEx.Software
 wrote:
>
> There is not a whole lot that you can do to access the text view.
> AFAIK, everything must be done through the RemoteViews object and its
> appropriate "set..." functions like you have here :
> updateViews.setTextViewText(R.id.myTxt,"Helloworld");
>
> You can access some other functions of TextView via functions like
> setInt(), setDouble(), setFloat()...
> But I am not positive which ones are accessible in this way.
>
> On Sep 22, 9:13 am, ColletJb  wrote:
>> The problem is that findViewById() belongs to Activity, not
>> AppWidgetProvider.
>>
>> How could I do then ? (access myTxt field on that example)
>>
>> Example :
>>
>> public class Widget extends AppWidgetProvider
>> {
>>         @Override
>>         public void onUpdate(Context context, AppWidgetManager
>> appWidgetManager,
>>                         int[] appWidgetIds) {
>>                 context.startService(new Intent(context, 
>> UpdateService.class));
>>         }
>>         public static class UpdateService extends Service {
>>
>>                 @Override
>>                 public IBinder onBind(Intent intent) {
>>                         return null;
>>                 }
>>
>>                 public void onStart(Intent intent, int startId) {
>>                         RemoteViews updateViews = null;
>>                         try {
>>                                 updateViews = buildUpdate(this);
>>                         } catch (Exception e) {
>>                                 Log.i("INFO", e.toString());
>>                         }
>>
>>                        // Push update for this widget to the home screen
>>                        ComponentName thisWidget = new ComponentName(this,
>> Widget.class);
>>                        AppWidgetManager manager = 
>> AppWidgetManager.getInstance
>> (this);
>>                        manager.updateAppWidget(thisWidget, updateViews);
>>                 }
>>
>>                 private RemoteViews buildUpdate(Context context)
>> throws Exception {
>>                         RemoteViews updateViews = null;
>>                         updateViews = new 
>> RemoteViews(context.getPackageName(),
>> R.layout.widget_bg);
>>                         updateViews.setTextViewText(R.id.
>> myTxt,"Helloworld");
>>
>>                         return updateViews;
>>                 }
>>
>>         }
>>
>> }
>>
>> On 16 sep, 19:07, Jack Ha  wrote:
>>
>> > Try:
>>
>> >     TextView tv = (TextView)findViewById(R.id.myTxt);
>>
>> > --
>> > Jack Ha
>> > Open Source Development Center
>> > ・T・ ・ ・Mobile・ stick together
>> > The coverage you need at the price you want
>>
>> > The views, opinions and statements in this email are those of
>> > the author solely in their individual capacity, and do not
>> > necessarily represent those of T-Mobile USA, Inc.
>>
>> > On Sep 16, 5:34 am,ColletJb wrote:
>>
>> > > Hi,
>>
>> > > I have already developed some widgets for android, but every time, I
>> > > have the same problem... I Can' access my XML layout's elements from
>> > > my java code.
>>
>> > > For example :
>>
>> > > 
>> > > > > >         xmlns:android="http://schemas.android.com/apk/res/android";
>> > >         android:layout_width="fill_parent"
>> > >         android:layout_height="fill_parent">
>>
>> > >         > > >                 android:id="@+id/myTxt"
>> > >                 android:Text="HelloWorld !"
>> > >                 android:layout_width="wrap_content"
>> > >                 android:layout_height="wrap_content" />
>>
>> > > 
>>
>> > > With this layout, how can I access my "myTxt" object ?
>>
>> > > Thank you for your help
>>
>> > >ColletJb
>>
>> > > PS : In an Activity, the equivalent is "findViewById(int)".
>>
>>
> >
>

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[android-developers] Wondering if someone can clarify this android 2.0 and 1.6

2009-09-28 Thread Satya Komatineni


There was a talk some months ago that Android 2.0 is donut. However I
see that 1.6 is just out and it indeed is "donut".

Can someone clarify what Android 2.0 is then and how soon befor it hit
the ropes?

Thanks
Satya

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[android-developers] Android search in pictures (Informational post)

2009-10-20 Thread Satya Komatineni


As I have been looking into the android quick search box, here is a
series of pictures that digs into the nature of the new Android
Search.

http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3325&ownerUserId=satya

These pictures should be helpful as you read through the Android docs on search

http://developer.android.com/reference/android/app/SearchManager.html

Thanks
Satya

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[android-developers] what does this icon mean in Android Search Box

2009-10-21 Thread Satya Komatineni


In android global search suggestions, I see an icon that looks like a
closed box with the android icon slapped on it half way.

You can see the image here

http://www.knowledgefolders.com/akc/filestorage/satya/documentfiles/3325/what-does-this-mean.gif

The suggestion items are previously entered by me for searching a local app.

When I click on this line itemed suggestion I see the following image
presented by a content resolver

http://www.knowledgefolders.com/akc/filestorage/satya/documentfiles/3325/what-does-this-mean2.gif

Are these just recently searched terms which Android is giving an
option to search with???

Thanks for your help
Satya

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[android-developers] A possible bug??: global mode type-to-search not closing if the search is self directed with suggestions

2009-10-21 Thread Satya Komatineni


Here is what is happening

1. I have an activity that is responding to searches. Call this
"search results activity"
2. the "search results activity" is enabled type-to-search global keys
3. I see the global search box show up if type some text on the activity
4. I type in a pattern such as "g" or "gh"
5. The local suggestion provider shows up as "More"
6. I click on "More..."
7. search now narrows to just "g" and "gh" as provided by this application
8. I click on any of these items or even click on the magnifying glass
9. I would expect the search to close and take me back to the "search
results activity" with a newintent
10. However the search box wont close.
11. I do see the newintent firing in logcat

I havent tested it, but only thing I can think of is that the new
intent is not explicitly altering the "search results activity" UI.
Still I would have expected the search screen to close.

Thanks for your help
Satya

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[android-developers] Is it possible to invoke an external activity, such as a browser, from a custom suggestion provided by a custom suggestion provider

2009-10-23 Thread Satya Komatineni


when I examine the intent raised by clicking on a suggestion provided
by a custom suggestion provider it looks like this

launching Intent {
act=android.intent.action.VIEW
dat=http://www.google.com
flg=0x1000
cmp=com.ai.android.search.custom/.SearchActivity (has extras)
}

This is assuming that I have an intent action column and also intent
data column. My hope was that when a user clicks on the suggestion
there will be an intent with out the explicit "component" in it
allowing the invocation of the browser.

Is that always the case? Is that a security restriction?

Your comments are much appreciated.
Satya

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[android-developers] help! Odd behavior with a search activity

2009-10-24 Thread Satya Komatineni


I have a package with two activities

1. A main activity
2. A search activity

The search activity is invoked by a search suggestion provider in two
possible ways

1. By clicking directly on a suggestion invoking the search activity
through a VIEW action
2. By clicking on the explicit search icon invoking the activity
through SEARCH action

If it is invoked through SEARCH I stay on the search activity and show
some text to the user. Now when I click the back button I go back
CORRECTLY to the home page.

ODD Behaviour:
However if I came to the search activity through the VIEW, I invoke a
browser activity and call finish() on the search activity. Now I have
the browser in my view. If I now go back I would expect to go back to
teh device home page. But from now where the "main activity" is
showing up.

I see in the logcat a message from ActivityManager indicating

moveTaskToBack: 8

I have tried various flags to invoke the browser activity
the tried flags include

new task
previous is top

and I have also tried both a singleTop and otherwise with the
SearchActivity as well.

Same end result.

Thanks for your insight on this one
Satya

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[android-developers] Re: help! Odd behavior with a search activity

2009-10-24 Thread Satya Komatineni


Here is some more research on this:

quick summary once again: I have two activities

1. main
2. search activity

Nature of search activity

1. invoke a browser
2. finish after that
3. As a result browser will be showing when this search activity is invoked

When does it work

If I have never invoked the MAIN activity of this application then the
back button on the invoked browser activity will take me back to where
I came from. (home)

when does it NOT work
**
If I invoked the MAIN activity at any time prior to the global search,
then the back button on the browser will take me quite disconcertingly
I should say to the MAIN activity irrespective of how far back in the
history it is.

The behavior seem un changed even if I set the

  android:allowTaskReparenting="false"

What alternative I have

In my case the MAIN activity happens to be spurious and unnecessary
and I had it just for debugging. I had to remove this activity from
the application to make this work reliably

Hope these notes would be of some help if you were to stray this way.

well anyways if you have some ideas I would love to hear them

Thanks
Satya

On Sat, Oct 24, 2009 at 9:10 AM, Satya Komatineni
 wrote:
> I have a package with two activities
>
> 1. A main activity
> 2. A search activity
>
> The search activity is invoked by a search suggestion provider in two
> possible ways
>
> 1. By clicking directly on a suggestion invoking the search activity
> through a VIEW action
> 2. By clicking on the explicit search icon invoking the activity
> through SEARCH action
>
> If it is invoked through SEARCH I stay on the search activity and show
> some text to the user. Now when I click the back button I go back
> CORRECTLY to the home page.
>
> ODD Behaviour:
> However if I came to the search activity through the VIEW, I invoke a
> browser activity and call finish() on the search activity. Now I have
> the browser in my view. If I now go back I would expect to go back to
> teh device home page. But from now where the "main activity" is
> showing up.
>
> I see in the logcat a message from ActivityManager indicating
>
> moveTaskToBack: 8
>
> I have tried various flags to invoke the browser activity
> the tried flags include
>
> new task
> previous is top
>
> and I have also tried both a singleTop and otherwise with the
> SearchActivity as well.
>
> Same end result.
>
> Thanks for your insight on this one
> Satya
>

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[android-developers] Re: Handling key events in a paused Activity

2009-05-05 Thread Satya Komatineni


perhaps is there a way to intercept all key events globally before
they are dispatched to the apps?

On Tue, May 5, 2009 at 8:51 AM, Taísa Cristina  wrote:
>
> My application behavior is similar to voice call, but I need also to handle
> key events. My application is still running in background and the activity
> is paused. Is there a way to receive key events in such situation? When the
> call screen is paused, it receives "end call" key event. Can I receive a
> specific key event in a similar situation? Is there a way to register my
> activity (or my application) for that?
>
> Taísa Cristina Costa dos Santos
> Computer Engineer
> Brazil, SP
> 55 19 8152-7453
>
>
> On Tue, May 5, 2009 at 8:02 AM, ellipsoidmob...@googlemail.com
>  wrote:
>>
>> If what you want is to have a notification that the user can swipe
>> down and click to go back to your application, then you don't really
>> need to be handling key events whilst your activity is paused. What
>> you could do is create a service which displays the notification, and
>> then use an intent to launch your activity when the notification is
>> clicked.
>>
>> BUT - I'm not sure that this is good usability design. If the user has
>> navigated away from your activity and if you don't need to do any
>> continual background processing, then you probably shouldn't show
>> anything in the notification panel. The user can always get back to
>> your app from the homescreen or via a long press on the home button.
>>
>
>
> >
>

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[android-developers] Re: Handling key events in a paused Activity

2009-05-06 Thread Satya Komatineni


What about "function keys"? Is it possible to tie together a set of
function keys (if they exist) to a service or an activity that is in
the background?

On Tue, May 5, 2009 at 6:19 PM, Mark Murphy  wrote:
>
> Taísa Cristina wrote:
>> In fact I do need to handle key strokes.
>
> Find another UI pattern.
>
>> It would be easier if I could
>> handle home key, so that I could prevent the user from going to home
>> screen.
>
> Find another UI pattern. "Prevent the user from going to home screen" is
> fairly evil and is a tactic I would expect to find from malware.
>
>> And it would be very boring for the user to go back to
>> the Activity whenever he wanted to press a key and make stuff...
>
> Find another UI pattern.
>
>> Is there a way to register for receiving key strokes if my application
>> is compiled with the emulator/device image? (should I ask it on
>> android-platform?)
>
> A list on http://source.android.com/discuss is a better place for
> questions about modifying firmware.
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://twitter.com/commonsguy
>
> Android App Developer Books: http://commonsware.com/books.html
>
> >
>

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[android-developers] Here is an approach to draw a regular polygon using Android OpenGL.

2009-07-07 Thread Satya Komatineni


If you are new to OpenGL and also happen to be experimenting with
OpenGL and Android here is an article that I cooked up that explains
how to draw any regular polygon at any origin on the scene.

The design approach is simple enough: start by defining a regular
polygon with the help of a radius, number of sides and its origin.
Then calculate the vertices for each side of the polygon. Use
GL_TRIANGLES to draw multiple triangles to make up the polygon. Then
have the RegularPolygon provide these vertices and necessary indecies
as an array to the drawing class.

You can see the full article and source code at

http://www.knowledgefolders.com/akc/display?url=DisplayNoteIMPURL&reportId=3189&ownerUserId=satya

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[android-developers] Who recovers the memory of allocateDirect of java nio buffers? (A helpful note)

2009-07-07 Thread Satya Komatineni

While programming in OpenGL on Android one will be using the native
nio buffers from the core java package. In many of the opengl samples
you will see that these native buffers are being allocated. But you
will not see that memory anywhere being "un" allocated. So a question
begs to be asked:

Who recovers the memory of allocateDirect of java nio buffers?

I did some research on the topic. Here is the summary.

The java.nio package is there to allocate memory space outside of the
java heap that can be directly used by such systems as OpenGL or file
i/o etc.

The nio buffers are actually java objects that eventually point to the
native buffer. These objects are garbage collected. When they are
garbage collected they go ahead and delete the native memory. Java
programs doesn't have to do anything special to unallocate or free the
memory.

However the "gc" won't get fired unless there is memory needed in the
java heap. This means you can run out of native memory and gc may not
realize it.

One implementation in the references below points to an approach where
an outof memory exception will trigger a "gc" and tries it again.

Importantly for the sake of simple OpenGL under ordinary circumstances
one can allocate the native buffers and not worry about releasing
explicitly as that is done by the gc.

You can read more details of the research at the following url

http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3184&ownerUserId=satya

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[android-developers] An OSCON 2009 session on (introductory) Animation and OpenGL on Android

2009-07-22 Thread Satya Komatineni


If you are looking to find a comprehensive introduction to Animation
and OpenGL on Android you can take a look at this presentation that I
have prepared for OSCON 2009.

The link for the presenation summary is

http://en.oreilly.com/oscon2009/public/schedule/detail/8108

You can download the power point from

http://www.knowledgefolders.com/akc/display?url=DisplayNoteIMPURL&reportId=3203&ownerUserId=satya

I will also be keeping notes on the over all OSCON' 09 here

http://www.knowledgefolders.com/akc/display?url=NotesiMPURL&ownerUserId=satya&folderName=oscon-2009&order_by_format=news

If you have read this far, here is my web log as well which has links
to other Android development information
http://www.satyakomatineni.com

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Re: [android-developers] Trying to get a ProgressDialog to display.

2011-05-28 Thread Satya Komatineni

UI, including dialogs, is fundamentally an asynchronous process served
by the same thread.

A show() on a dialog is a "delayed instruction" to tell the main
thread to show the dialog when it comes back around the loop to
process that message.  However if you follow the "show" with a
"dismiss" in the same thread then you cancel each other out (may be
with a bit of delay).

If you inject some processing between show and dismiss, as long as you
are on the same main thread of execution it is ineffective.

You should try to use an AsyncTask along with a progress dialog to
accomplish what you are looking for.

Or if you insist not to use the asynctask then you need to post
yourself a message (through a handler) after showing the dialog so
that you can pick up the processing and at the end ofthe processing
you can dismiss the dialog.

There are quite a few articles on the web on asynctask.

I have link below that is a bit more detailed and if you have patience
to read through that it could be helpful

http://www.satyakomatineni.com/item/3536


On Sat, May 28, 2011 at 10:00 AM, B Lyon  wrote:
> I've never used that one, but I'm wondering if the second ".show()" is
> necessary, and/or if it is somehow causing weirdness?  This person
> (http://www.helloandroid.com/tutorials/using-threads-and-progressdialog)
> didn't do that.
>
> On Sat, May 28, 2011 at 9:43 AM, EmilDiego  wrote:
>> I have a function inside one of my activities that calculates some
>> statistics and takes a little time to generate a report.  I want to
>> display a progressDialog while this is going on to give the user some
>> feedback that something is happening while he is waiting.  The problem
>> I am having is that I can't get my progressDialog to display no matter
>> what I do.  Is there some obscure factoid that I am missing out on
>> here that is preventing this to work.  This problem is particularly
>> perplexing because I am using similar code elsewhere in the Activity
>> and that works ok.  Any ideas
>>
>>
>> Here is my code:
>>
>> //* ADD THE CODE FOR THE PROGRS DIALOG
>>                //* Start the progress dialog
>>                xReportProgress = ProgressDialog.show(this, "", "Preparing
>> Report.");
>>                xReportProgress.show();
>>
>>                switch(iReportFormat)
>>                {
>>                        case callLog.REPORT_FORMAT_CSV:
>>                                sReportOutput = this.createCSVReport();
>>                                break;
>>
>>                        case callLog.REPORT_FORMAT_XML:
>>                                sReportOutput = this.createXMLReport();
>>                                break;
>>
>>                        default:
>>                                
>> ed.app.commTracker.main.systemLog.logError("Invalid report
>> format.");
>>                                return;
>>
>>                }
>>
>>                //* Close the dialog so we can display the intent chooser
>>                xReportProgress.dismiss();
>>
>> --
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>
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Re: [android-developers] Re: Are dialogs supposed to be modal?

2011-06-02 Thread Satya Komatineni

Common guys. Give him a bit of credit.

Yes. I agree it is a GOOD recommendation to not use private APIs. It
is especially good recommendation to not use them for a general
purpose facility.

Other than that it is a good effort.

Someone thinks differently let him experiment.

Satya

On Thu, Jun 2, 2011 at 2:04 AM, Zsolt Vasvari  wrote:
> Of course, it's wise, but frankly, only an idiot would use that piece
> of code -- and you cannot really help those people.
>
> On Jun 2, 2:00 pm, Chris  wrote:
>> The suggestion to avoid using private APIs is wise.  I had a company once
>> that built a model on WinNT 4 and when XP/5.0 came out was rendered
>> obsolete.
>>
>> Just sayin' is all.
>>
>> - C
>
> --
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Re: [android-developers] Re: Java book (like C K&R and C++ Programming Language)

2011-06-11 Thread Satya Komatineni

C++ by Stroustroup is one of the best books in languages that I have
read (especially the ARM book).

On Java I still prefer the simplicity of the first edition by the
creator of Java. to the point. brief. clear and concise.

The more recent topics you can probably learn from on line sources
such as generics, genericized lists etc..


On Sat, Jun 11, 2011 at 7:26 AM, John  wrote:
>
>> I have a C and C++ background and i'm looking for "THE" java book, like the
>> "C Programming Language, best know as K&R, for C and the "C++ Programming
>> Language" by Bjarne Stroustrup for C++.
>
> I have always liked the Core Java books (two volumes) by Horstmann and
> Cornell. now in their eighth edition.  See 
> http://www.horstmann.com/corejava.html
> for more details.  I also support the other poster's recommendation of
> Josh Bloch's book entitled Effective Java as an excellent reference,
> but not necessarily as a first source for learning Java.
>
> --
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[android-developers] Info: Research notes on using GSON for Mobile App Storage

2012-12-28 Thread Satya Komatineni

Article: GSON for Mobile App Storage
http://satyakomatineni.com/item/4440

Here is an abstract:

You will be surprised how GSON can propel your mobile app productivity
especially release 1 candidates. In this approach you will represent
the persistent state of your apps as JSON. You will use the
"Beautiful" tool GSON from google to convert your application objects
to JSON and persist the resulting JSON string either in a shared
preference or on internal storage as files.

This article answers the following questions


What does Android recommend for data storage options? The Official line!
The JSON solution
What is GSON?
  What is GSON's homepage?
  Is there a user guide for GSON?
  Can I save nested objects?
  Can I save nested collections of objects?
  How are characters in strings escaped?
How do you add external jar files to Android APK file?
What are shared preferences?
Difference between getSharedPreferences and getPreferences?
How to get a context independent of an activity?
Where are shared preference files stored?
How do you save JSON to a shared preference file?
What does the saved preference file look like?
How do you read JSON from shared preferences back as Java Objects?
How does escape characters work in android preferences?
What is internal storage?
How do you save to internal storage?
How do you restore objects from internal storage?
Should you use external storage like the SD card?
What are the useful references while working with this approach?
How do you code such a way that you can migrate in the future to SqlLite?
What Next?

Thanks
Satya

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Re: [android-developers] Circular Menu

2013-02-15 Thread Satya Komatineni

Ravi,
what you need is a custom view and some 2D graphics API details.

Some of the material might be of some help

Essential Custom View Code snippets
http://satyakomatineni.com/item/4330

Also you will see here links for custom layouts research as well if
you were to arrange buttons or images in a circular layout.

On Fri, Feb 15, 2013 at 7:23 AM, ravi .  wrote:
> Hi All
> I want to design a menu just like the attached screen. I had tried in many
> ways but couldn't get a solution.
>
> Thanks
>
> --
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>

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[android-developers] 5 free chapters from the previous editions of Pro Android

2012-03-29 Thread Satya Komatineni

I have made available some valuable published content from the
previous editions of Pro Android for free. we had to remove these
chapters from our latest edition ProAndroid 4
(http://androidbook.com/proandroid4)  due to size and other reasons.

The chapters are

OpenGL
Search API
Live Folders
Text to Speech
Titaninum

These 5 free android sdk chapters are avilable at

http://androidbook.com/item/4060

Bootstrapping developers on the Android SDK
http://twitter.com/SatyaKomatineni
http://androidbook.com/training
http://satyakomatineni.com
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Re: [android-developers] onUpdate function is never being called from widget

2012-01-02 Thread Satya Komatineni

Do you have a widget configurator activity? if so the first onUpdate() is
not going to get called but subsequent onUpdates() will.

Also if you were to overload "onReceive()" make sure you call the parent
"onReceive()" otherwise you are disabling yourself from calling the rest of
the widget callbacks.

Good luck with your debugging

Satya

On Fri, Dec 30, 2011 at 12:31 PM, Eyal T  wrote:

> Hi all
>
> I try create a clickable widget.
> I saw that the clickable notification is not configured because
> onUpdate function is never being called (so I cannot set the
> notification)
> * I did not saw the log in the LogCat so I assume that the function is
> never being called
> * The Log in the onRecieve is being execute when I add the widget to
> the screen, and once in 30 minutes.
>
>
> Can anyone help me?
>
> Thanks Eyal
>
>
> public class AnimationWidget extends AppWidgetProvider {
>public static int imageNumber = 0;
>private static final String ACTION_WIDGET_RECEIVER =
> "ActionRecieverWidget";
>
>
>
>
>   /** Called when the activity is first created. */
>
>
>
>   @Override
>   public void onUpdate(Context context, AppWidgetManager
> appWidgetManager,
> int[] appWidgetIds) {
>
>  Log.i("print from main", "widget id: ");
>
> }
>
> @Override
>public void onReceive(Context context, Intent intent) {
>
>
>   Log.i("print from main", "onReceive " +
> intent.getAction());
> }
>
> http://schemas.android.com/apk/res/android";
>  package="com.animation.widget"
>  android:versionCode="1"
>  android:versionName="1.0">
>
>
>   
>
>android:label="@string/app_name">
> 
>  android:name="android.appwidget.action.APPWIDGET_UPDATE" />
>  
>  android:name="android.appwidget.provider"
>  android:resource="@xml/widget_info" />
>   
>   
>
>
>
>   
>
>
>
> 
>
> --
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[android-developers] Kudos: Android Team, You have done a fantastic job on OpenGL documentation

2012-07-24 Thread Satya Komatineni

http://developer.android.com/guide/topics/graphics/opengl.html

The lessons and tutorials here are excellent!
http://developer.android.com/training/graphics/opengl/index.html

Real thanks
http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
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Re: [android-developers] OpenGL using multiple classes

Hopefully you have a good reason to structure  your classes they way
you have done.

To start BlaRenderer is a proper derived class that will get called.
So this is a concrete class by itself.

Number 2, the player class looks more like a utilitiy class and hence
doesn't need to derive from BlaRenderer. In your code I don't see the
Player class playing the role of a renderer.

Number 3, BlaRenderer has a local variable pointing to a Player class.
So the variables of Player class are physically separate from the
variables of BlaRenderer. if your intention is to have the Player as a
utility class, then

1. Don't inherit from Renderer
2. Remove the local variables in the BlaRenderer which are now
controlled by Renderer

Hope that helps
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On Wed, Aug 15, 2012 at 8:37 PM, Braindrool  wrote:
> I've been programming for years, but I have very little experience with 3D
> graphics. I thought OpenGL would be the most efficient in this project. It's
> coming along alright, I am still studying the API and documentation. But I
> have encountered a problem using multiple classes. For instance, here I try
> to use a separate class for the player model. (Yes, currently it's just a
> cube.)
>
> Renderer:
>
> Code:
>
> package com.braindrool.bla;
>
> import java.nio.ByteBuffer;
> import java.nio.ByteOrder;
> import java.nio.FloatBuffer;
> import java.nio.ShortBuffer;
>
> import javax.microedition.khronos.egl.EGLConfig;
> import javax.microedition.khronos.opengles.GL10;
>
> import android.opengl.GLSurfaceView.Renderer;
>
> public class BlaRenderer implements Renderer {
>
>   int nrOfVertices;
>   float A;
>   Player player = new Player();
>
>   public void onSurfaceCreated(GL10 gl, EGLConfig config) {
>   // TODO Auto-generated method stub
>
>   gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
>   gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
>
>   gl.glEnable(GL10.GL_CULL_FACE);
>
>   gl.glFrontFace(GL10.GL_CCW);
>   gl.glCullFace(GL10.GL_BACK);
>
>   gl.glClearColor(0.3f, 0.8f, 0.9f, 1);
>
>   //  initTriangle();
>   player.initPlayer();
>
>   }
>
>   public void onDrawFrame(GL10 gl) {
>   // TODO Auto-generated method stub
>
>   
>
>   gl.glLoadIdentity();
>
>   gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
>
>   // gl.glRotatef(A * 2, 1f, 0f, 0f);
>   // gl.glRotatef(A, 0f, 1f, 0f);
>   //
>   // gl.glColor4f(0.5f, 0, 0, 1);
>
>   gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer);
>   gl.glColorPointer(4, GL10.GL_FLOAT, 0, colorBuffer);
>   gl.glDrawElements(GL10.GL_TRIANGLES, nrOfVertices,
>   GL10.GL_UNSIGNED_SHORT, indexBuffer);
>   // A++;
>
>   }
>
>   public void onSurfaceChanged(GL10 gl, int width, int height) {
>   // TODO Auto-generated method stub
>   gl.glViewport(0, 0, width, height);
>
>   }
>
>   private FloatBuffer vertexBuffer;
>   private ShortBuffer indexBuffer;
>
>   private FloatBuffer colorBuffer;
>
>   private void initTriangle() {
>
>   float[] coords = { 0, 0.5f, 0, -0.5f, -0.5f, 0.5f, 0.5f, -0.5f, 
> 0.5f,
>   0, 0, -0.5f };
>
>   nrOfVertices = coords.length;
>
>   ByteBuffer vbb = ByteBuffer.allocateDirect(nrOfVertices * 3 * 
> 4);
>   vbb.order(ByteOrder.nativeOrder());
>   vertexBuffer = vbb.asFloatBuffer();
>
>   ByteBuffer ibb = ByteBuffer.allocateDirect(nrOfVertices * 2);
>   ibb.order(ByteOrder.nativeOrder());
>   indexBuffer = ibb.asShortBuffer();
>
>   ByteBuffer cbb = ByteBuffer.allocateDirect(4 * nrOfVertices * 
> 4);
>   cbb.order(ByteOrder.nativeOrder());
>   colorBuffer = cbb.asFloatBuffer();
>
>   float[] colors = { 1f, 0f, 0f, 1f, // point 1
>   0f, 1f, 0f, 1f, // point 2
>   0f, 0f, 1f, 1f, // point 3
>   };
>
>   short[] indices = new short[] {
>   // indices
>   0, 1, 2, 0, 2, 3, 0, 3, 1, 3, 1, 2
>
>   };
>
>   vertexBuffer.put(coords);
>   indexBuffer.put(indices);
>   colorBuffer.put(colors);
>
>   vertexBuffer.position(0);
>   indexBuffer.position(0);
>   colorBuffer.position(0);
>
>   }
>
> }
>
> And now the player class.
>
> Code:
>
> package com.braindrool.bla;
>
> import java.nio.ByteBuffer;
> import java.nio.ByteOrder;
> import java.nio.FloatBuffer;
> import java.nio.ShortBuffer;
>
> import javax.microedition.khronos

Re: [android-developers] Can't make new Android project in Eclipse.

Johannes,
Your tools may be more recent. Otherwise an "android application
project" is similar to "android project" in earlier tool versions.
There should be enough parallels to extrapolate.

http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni

On Sun, Aug 12, 2012 at 10:53 AM, Johannes  wrote:
> Hey guys. I'm trying to make an application for Android in Eclipse.
> However when I try to follow guides like this one: 
> http://androidcodemonkey.blogspot.dk/2010/01/hello-world-your-first-android.html
>
> I get a problem from the start. When I go to File > New there is no "Android 
> Project" even though I installed multiple Android packages to Eclipse. All i 
> can find is under file > new > project > Android and then things like 
> "Android Application Project" and "Android Sample Project". However these are 
> not alike the once i see in the tutorial.
>
> I hope anyone got the answer for why I can't make an Android Application like 
> the one in the tutorial.
>
> Thanks - Johannes.
>
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Re: [android-developers] App Not Installed

Where are you installing the app? are you doing it on the emulator or
a real device? If it is a real device you can do that with out
creating an unsigned package directly through eclipse. Otherwise you
will need to sign it to install on the device as a proper app.

And the image you have included seem to have lot of Java errors. It is
not clear from the image what they are. You have to debug them or show
someone that is close by to you to take a look.

http://satyakomatineni.com/android/training
http://satyakomatineni.com
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On Sun, Aug 12, 2012 at 10:36 AM, EeLeng Tee  wrote:
> Hello..
> Im new to eclipse.
> I've tried to play with android sample project from SDK.
> I export any project to unsigned apk file and install it
> But comes out "App not installed" message.
> Everything looks fine but just cant be installed.
> Anyone help? Thanks
>
> Oh ya i also encountered this problem which is java problem shown.
>
> http://i50.tinypic.com/r7rdkz.png
>
> Hope you guys can help because its important for my final year project =)
>
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Re: [android-developers] Error in an XML file: aborting build.

You typically install the ".apk" file on the emulator or the device
and then locate the icon for your application and use that icon to
click on it to run.

If you are using eclipse, you can use eclipse to run the project
automatically on the emulator or the device. (Eclipse will compile and
make the .apk file, and loads it and also starts the application
automatically with out locating the icon).

The typical sequence of events are

1. Get your source code
2. Make a project in eclipse
3. Compile the project in eclipse (Eclispse is usually set to
auto-compile the project)
4. Create an emulator (AVD) that matches with the SDK API level that
is used to compile the project
5. Use eclipse to run that project on that specific AVD
6. You can also use the real device instead (But it can be a bit
involved in having the eclipse identify the device)

http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni

On Fri, Aug 10, 2012 at 3:58 PM, James Spinella  wrote:
> Hey all,
>
> I'm brand new to Android development, well except for rooting, custom ROMs,
> etc. I'm going through Google's "lessons" in development, and I'm stuck at
> the part where it says to run my app that it just had me make... I've tried
> USB Debugging with my phone, as well as the emulator and whenever I try to
> run activity_main.xml, I get the aforementioned error.
>
> I have a feeling I am trying to run the wrong thingis this what Google
> wants me to run as per
> http://developer.android.com/training/basics/firstapp/running-app.html ?
>
> It has to be the wrong thing, I followed directions to a tee
>
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Re: [android-developers] Back face culling

2012-08-20 Thread Satya Komatineni

Hi,

I don't see any image except a blank screen. There may be, and quite
likely, more reasons why your figure is not showing (if it is not showing).
You may want to check your eye positioning, check your view port, check
your frustum etc. More importantly close trace your sample that works and
the one that doesn't.

Now coming to winding I believe the following triangles are would in the
opposite to the rest

The wrong ones are:

7,6,3
7,4,5
0,1,5
2,6,5


Because if you spin a right hand screw in that order the screw needs to
go-in or come-out facing the outside of the cube's surface. By that
logic they are likely
7,3,6
7,5,4
0,5,1
2,5,6

But again even if they were wrong you would have seen something on the
screen.

Here is a quick note on winding and hiding a hidden surface
http://satyakomatineni.com/item/4230

Here is how to hide hidden surfaces
http://satyakomatineni.com/item/4192

Here are my notes on as I have been working through OpenGL
http://satyakomatineni.com/item/opengl

If it helps here is a free chapter on OpenGL 1.1 and a bit on ES 2.0
http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=4060&downerUserId=satya


Hope that helps
Satya
http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni

On Sun, Aug 19, 2012 at 7:57 PM, Braindrool  wrote:

> I have returned to this group, once again. In search of assistance.
> Dealing with OpenGL ES 1.0, I'm having trouble getting back face culling to
> work. I have been following a variety of random tutorials that I've found
> for OpenGL, but this 
> one<http://www.droidnova.com/android-3d-game-tutorial-part-v,376.html>in 
> particular. The sample code works fine, but I'm not sure what I'm doing
> wrong. All I know is that it is about how I wind the vertices into the
> index buffer.
>
> For instance, I try to create a cube. I get this.
>
> <http://imgur.com/07nbH.png>
>
>
> The vertices / indices for that would be:
>
> [code]float[] coords = {
> -0.5f, 0.5f, -0.5f,
> -0.5f, -0.5f, -0.5f,
> 0.5f, -0.5f, -0.5f,
> 0.5f, 0.5f, -0.5f,
> -0.5f, 0.5f, 0.5f,
> -0.5f, -0.5f, 0.5f,
> 0.5f, -0.5f, 0.5f,
> 0.5f, 0.5f, 0.5f,
>
> };
>
> short[] indices = new short[] {
>  //Front
> 0,1,2,
> 2,3,0,
>  //Right
> 3,2,6,
> 7,6,3,
>  //Back
> 7,6,5,
> 7,4,5,
>  //Left
> 0,1,5,
> 0,4,5,
>  //Bottom
> 1,5,2,
> 2,6,5,
>  //Top
> 0,3,4,
> 3,7,0,
>
> };[/code]
>
>
> No idea what I'm doing wrong, help greatly appreciated!
>
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Re: [android-developers] Re: Back face culling

2012-08-20 Thread Satya Komatineni

No difference at all where you start.

On Mon, Aug 20, 2012 at 4:27 PM, Braindrool  wrote:

> Your fix didn't work, but something I am getting confused about. Does it
> matter what vertex is the starting point in a counter clockwise winding?
> Example:
>
> 
>
> Would it matter if you go:
>
> 0,1,3,
> 3,1,2
>
>
> or
> 1,3,0,
> 1,2,3?
>
> Any difference?
>
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Re: [android-developers] First android app

2012-08-22 Thread Satya Komatineni

If you are still looking for advice I have created a note a while ago called

How I have learned Android SDK: An authors note
http://www.satyakomatineni.com/item/3784

See if this is of some help
(Disclosure: Yes I do have a book on the subject)


http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni

On Wed, Aug 22, 2012 at 11:13 AM, cham herbias wrote:

> im sorry. what do you mean notepad example?
>
>
> On Wed, Aug 22, 2012 at 8:07 AM, Michael Leung wrote:
>
>> Start with Notepad Example, that is good
>>
>> On Thu, Aug 23, 2012 at 1:01 AM, cham herbias wrote:
>>
>>> Thank you for the help nirav. i appreciate it.
>>>
>>>
>>> On Tue, Aug 21, 2012 at 6:44 AM, Nirav Parmar wrote:
>>>
 Hello Cham,
 In my opinion Developer site is best..it has good examples..Also you
 can download API demos for each platform.You can learn lot from that
 demos.. Best of luck..

 Regards,
 Nirav

 On Tue, Aug 21, 2012 at 2:29 PM, cham herbias 
 wrote:

> I am a computer engineering student. Can you help me with some
> suggestions about basic android app? . I have a very basic background of
> android programming and i want to learn more.
>
> --
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 --
 Regards,

 Nirav Parmar.


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>>>
>>>
>>>
>>>
>>> --
>>>
>>>archie herbias
>>>  
>>>  
>>>  
>>>
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>>>
>>
>>
>>
>> --
>> Regards,
>> Michael Leung
>> http://www.itblogs.info - My IT Blog
>> http://diary.skynovel.info - My Blog
>> http://www.michaelleung.info - My Homepage
>>
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>
>
>
>
> --
>
>archie herbias
>  
>  
>  
>
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Re: [android-developers] How do I read an XML Data in Android?

2012-08-27 Thread Satya Komatineni

See if this SDK doc helps

http://developer.android.com/reference/org/xmlpull/v1/XmlPullParser.html

Here is some earlier research I have done on XML treatment on Android
(This may be a bit outdated as I haven't revisited it in a year)

What XML libraries are available for Android
http://satyakomatineni.com/item/3731

http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni


On Sun, Aug 26, 2012 at 9:36 AM, Guilherme Bernardi
 wrote:
> I'm developing an application that uses XML data...
>
> I consumed an wcf web service with SOAP, convert the object to a basic XML
> and save on sdcard, but now I need to read this data file to edit, confer
> and save?
>
> How can I do that? Can anyone help me?
>
> --
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Re: [android-developers] Android custom view (very basic)

2012-08-28 Thread Satya Komatineni

Victor,
I am not entirely sure. But I can suggest a couple of experiments to
debug. May be inheriting a View directly is too simplisitic. Try
inheriting a TextView first. And if it works then you can look at what
other base methods of the "View" you will need to inherit.

Take a look at this item from the docs

http://developer.android.com/training/custom-views/custom-drawing.html

to see what other methods you need to override.

Also if you are intending to use some custom attributes you may want
to look at some detailed notes I have gathered at

http://satyakomatineni.com/item/4169

This goes into how attrs.xml and declare styleables work.

Also let me know what you find.
Thanks
Satya
http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni
On Mon, Aug 27, 2012 at 2:09 PM, Victor Reboucas  wrote:
> Hi, I'm new to Android development and I'm trying to implement a custom view
> to act as a "custom menu button" for my app.
>
> I followed the instructions at
> http://developer.android.com/training/custom-views/create-view.html but by
> the end of the implementation I get a message saying "Unfortunately
> customviews1 has stopped" and the app just shut's down.
>
> My approach is very simple and I cannot find any reference about solving
> this basic problem. Here's what I'm doing:
>
> 1. create a new Android project in Eclipse named "customviews1"
>
> 2. I run the project and it shows a "Hello World" TextView on the
> "activity_main.xml" layout file
>
> 3. I add a new class that extends "View" to the "src" folder of the project:
>
> public class MyCustomView extends View {
>
> public MyCustomView(Context context, AttributeSet attrs) {
> super(context, attrs);
> }
>
> }
>
> 4. I remove the "TextView" from activity_main.xml and add a "customview1" to
> it:
>
>
> http://schemas.android.com/apk/res/android";
> xmlns:tools="http://schemas.android.com/tools";
> android:layout_width="match_parent"
> android:layout_height="match_parent">
>
> 
> 
>
> 5. I run the app again and I got the message saying "Unfortunately
> customviews1 has stopped" and the app shuts down.
>
>
> Is there any code I'm missing here?
>
>
> Thanks for any clue,
> Regards,
> Victor Reboucas
>
>
>
>
>
>
>
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Re: [android-developers] Are there any official Google sponsored training seminars/classes, etc?

2012-08-28 Thread Satya Komatineni

See if something like this helps

http://androidbook.com/training

Also if you have a set number of folks (about 10) I don't mind
travelling with in the US for a week to teach.

http://androidbook.com/training
http://androidbook.com
http://satyakomatineni.com
http://twitter.com/SatyaKomatineni

On Tue, Aug 28, 2012 at 4:00 PM, RKS  wrote:
> I'm looking for information on officially sponsored training
> seminars/classes etc? I'm not really interested in online but will take some
> info on that if you have it. What I'm really interested in are
> seminars/courses that you pay for, have to go to the location, and take
> classes ranging from fundamentals to advanced. I've seen a couple of
> workshops posted around the interwebs and these might be just as productive
> as something Google sponsors but without any reviews or anything I don't
> know how comfortable I am giving just anyone $1K+ on an advertisement for
> training.
>
> Local colleges have options as well, but mainly I'm looking for more of a
> workshop style that isn't intending on teaching you from scratch. We've got
> guys who are already senior programmers in other languages that are not
> going to be interested in going to school for a semester! A week long course
> would be perfect to go out and bring home a few things.
>
> So does anyone know of anything like that?
>
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Re: [android-developers] GL_POINTS not drawing points

2012-09-01 Thread Satya Komatineni

Guich,
Given a number of ways how to do the same thing in OpenGL it will be quite
hard to debug.

On Sat, Sep 1, 2012 at 9:11 AM, guich  wrote:

> Hi,
>
> I've spent a full day trying to draw a series of points using GL_POINTS. I
> know i could use a texture, but i want to learn how to draw points. The
> resulting image (zoomed) is shown here:
>
> The code is written below. Any help on why are only 4 points appearing is
> greatly appreciated. Although it is possible to create your model, view,
> and projection matrices, it is better to use Matrix class and use the
> methods available on that class to generate the required matrices.
>

To get the view matrix you can call
Matrix.setLookAtM(viewMatrix)

To get the projection matrix
Matrix.frustumM(projectionMatrix)

Then you can get your ModelViewProjection matrix by doing
Matrix.multiplyMM(mvp, projmatrix, viewmatrix)

Finally to get your gl_position = mvp * gl_position; and not the other way.

I would start with a simple program that works and then gradually increase
the complexity. A triangle or a square is a good place to start and then
make it work using the examples in the tutorial on the android developer
site.

If there is a specific issue that you are not clear ask that specifically
and you may be able to debug it that way

http://satyakomatineni.com/android/training
http://satyakomatineni.com
http://androidbook.com
http://twitter.com/SatyaKomatineni


>
> 
>
> public class MainActivity extends Activity
> {
>class MyGLSurfaceView extends GLSurfaceView
>{
>   public MyGLSurfaceView(Context context)
>   {
>  super(context);
>
>  setEGLContextClientVersion(2); // Create an OpenGL ES 2.0 context.
>  setEGLConfigChooser(8, 8, 8, 8, 0, 0);
>  getHolder().setFormat(PixelFormat.RGBA_);
>  setRenderer(new MyGLRenderer()); // Set the Renderer for drawing
> on the GLSurfaceView
> // setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); // Render
> the view only when there is a change in the drawing data (must be after
> setRenderer!)
>   }
>}
>
>public void onCreate(Bundle savedInstanceState)
>{
>super.onCreate(savedInstanceState);
>setContentView(new MyGLSurfaceView(this));
>}
> }
>
> class MyGLRenderer implements GLSurfaceView.Renderer
> {
>byte[][] bitmap = {
>  {1,1,1,1,1,1,1,1},
>  {1,0,0,1,1,0,0,1},
>  {1,0,0,1,1,0,0,1},
>  {1,0,0,1,1,0,0,1},
>  {1,0,0,1,1,0,0,1},
>  {1,0,0,1,1,0,0,1},
>  {1,0,0,1,1,0,0,1},
>  {1,0,0,1,1,0,0,1},
>  {1,1,1,1,1,1,1,1}};
>
>static final int COORDS_PER_VERTEX = 3;
>
>// Set color with red, green, blue and alpha (opacity) values
>float color[] = { 0,0,0, 1.0f };
>float coords[] = new float[4 * COORDS_PER_VERTEX];
>int w,h;
>
>public void onSurfaceCreated(GL10 unused, EGLConfig config)
>{
>}
>
>public void onDrawFrame(GL10 unused)
>{
>   try
>   {
>  drawText();
>   } catch (Exception e) {debug(e.getMessage());}
>}
>
>private String vertexShaderCode(int w, int h)
>{
>   return // http://www.songho.ca/opengl/gl_projectionmatrix.html
>  "attribute vec4 vPosition;" +
>  "mat4 projectionMatrix = mat4( 2.0/"+w+".0, 0.0, 0.0, -1.0,"+
>   "0.0, -2.0/"+h+".0, 0.0, 1.0,"+
>   "0.0, 0.0, -1.0, 0.0,"+
>   "0.0, 0.0, 0.0, 1.0);"+
>  "void main() {gl_Position = vPosition*projectionMatrix;}"; // the
> matrix must be included as a modifier of gl_Position
>}
>
>private final String fragmentShaderCode =
>   "precision mediump float;" +
>   "uniform vec4 vColor;" +
>   "void main() {gl_FragColor = vColor;}";
>
>private int mProgram;
>private int mPositionHandle;
>private int mColorHandle;
>
>public void onSurfaceChanged(GL10 unused, int width, int height)
>{
>   w = width; h = height;
>   // Adjust the viewport based on geometry changes, such as screen
> rotation
>   GLES20.glViewport(0, 0, width, height);
>
>   // prepare shaders and OpenGL program
>   int vertexShader =
> MyGLRenderer.loadShader(GLES20.GL_VERTEX_SHADER,vertexShaderCode(width,height));
>   int fragmentShader =
> MyGLRenderer.loadShader(GLES20.GL_FRAGMENT_SHADER,fragmentShaderCode);
>
>   mProgram = GLES20.glCreateProgram(); // create empty
> OpenGL Program
>   GLES20.glAttachShader(mProgram, vertexShader);   // add the vertex
> shader to program
>   GLES20.glAttachShader(mProgram, fragmentShader); // add the fragment
> shader to program
>   GLES20.glLinkProgram(mProgram);  // create OpenGL
> program executables
>   GLES20.glUseProgram(mProgram); // Add program to OpenGL environment
>
>   // get handle

Re: [android-developers] GL_POINTS not drawing points

2012-09-02 Thread Satya Komatineni

Sorry this line

Finally to get your gl_position = mvp * gl_position; and not the other way.

should read

Finally to get your gl_position = mvp * positionAttributeVariable; and not
the other way.

On Sat, Sep 1, 2012 at 11:10 PM, Satya Komatineni <
satya.komatin...@gmail.com> wrote:

> Guich,
> Given a number of ways how to do the same thing in OpenGL it will be quite
> hard to debug.
>
> On Sat, Sep 1, 2012 at 9:11 AM, guich  wrote:
>
>> Hi,
>>
>> I've spent a full day trying to draw a series of points using GL_POINTS.
>> I know i could use a texture, but i want to learn how to draw points. The
>> resulting image (zoomed) is shown here:
>>
>> The code is written below. Any help on why are only 4 points appearing is
>> greatly appreciated. Although it is possible to create your model, view,
>> and projection matrices, it is better to use Matrix class and use the
>> methods available on that class to generate the required matrices.
>>
>
> To get the view matrix you can call
> Matrix.setLookAtM(viewMatrix)
>
> To get the projection matrix
> Matrix.frustumM(projectionMatrix)
>
> Then you can get your ModelViewProjection matrix by doing
> Matrix.multiplyMM(mvp, projmatrix, viewmatrix)
>
> Finally to get your gl_position = mvp * gl_position; and not the other way.
>
> I would start with a simple program that works and then gradually increase
> the complexity. A triangle or a square is a good place to start and then
> make it work using the examples in the tutorial on the android developer
> site.
>
> If there is a specific issue that you are not clear ask that specifically
> and you may be able to debug it that way
>
> http://satyakomatineni.com/android/training
> http://satyakomatineni.com
> http://androidbook.com
> http://twitter.com/SatyaKomatineni
>
>
>>
>> <https://lh5.googleusercontent.com/-lelPSZoY4dw/UEIH5mVQfII/AD4/o5q5GMFuL00/s1600/points.png>
>>
>> public class MainActivity extends Activity
>> {
>>class MyGLSurfaceView extends GLSurfaceView
>>{
>>   public MyGLSurfaceView(Context context)
>>   {
>>  super(context);
>>
>>  setEGLContextClientVersion(2); // Create an OpenGL ES 2.0
>> context.
>>  setEGLConfigChooser(8, 8, 8, 8, 0, 0);
>>  getHolder().setFormat(PixelFormat.RGBA_);
>>  setRenderer(new MyGLRenderer()); // Set the Renderer for drawing
>> on the GLSurfaceView
>> // setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); // Render
>> the view only when there is a change in the drawing data (must be after
>> setRenderer!)
>>   }
>>}
>>
>>public void onCreate(Bundle savedInstanceState)
>>{
>>super.onCreate(savedInstanceState);
>>setContentView(new MyGLSurfaceView(this));
>>}
>> }
>>
>> class MyGLRenderer implements GLSurfaceView.Renderer
>> {
>>byte[][] bitmap = {
>>  {1,1,1,1,1,1,1,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,0,0,1,1,0,0,1},
>>  {1,1,1,1,1,1,1,1}};
>>
>>static final int COORDS_PER_VERTEX = 3;
>>
>>// Set color with red, green, blue and alpha (opacity) values
>>float color[] = { 0,0,0, 1.0f };
>>float coords[] = new float[4 * COORDS_PER_VERTEX];
>>int w,h;
>>
>>public void onSurfaceCreated(GL10 unused, EGLConfig config)
>>{
>>}
>>
>>public void onDrawFrame(GL10 unused)
>>{
>>   try
>>   {
>>  drawText();
>>   } catch (Exception e) {debug(e.getMessage());}
>>}
>>
>>private String vertexShaderCode(int w, int h)
>>{
>>   return // http://www.songho.ca/opengl/gl_projectionmatrix.html
>>  "attribute vec4 vPosition;" +
>>  "mat4 projectionMatrix = mat4( 2.0/"+w+".0, 0.0, 0.0, -1.0,"+
>>   "0.0, -2.0/"+h+".0, 0.0, 1.0,"+
>>   "0.0, 0.0, -1.0, 0.0,"+
>>   "0.0, 0.0, 0.0, 1.0);"+
>>  "void main() {gl_Position = vPosition*projectionMatrix;}"; //
>> the matrix must be included as a modifier of gl_Position
>>}
>>
>>private final String fragmentShaderCode =
>>   "precision mediump float;" +

Re: [android-developers] GL_POINTS not drawing points

2012-09-02 Thread Satya Komatineni

I am on my way to take my kids to the beach. I will look at it a bit closer
next week. May be just give me the simple problem defintion and I will try
to create the program for you and send the zip file.

ButI will try a quick answer

Say you want a 20x20 graph.

Specify your point vertices as (0,0) (1,1,)(5,5) all x,y and specify the z
as 0 if needed.

Then you need to set your camera using

Matrix.setLookAtM(mVMatrix, 0, 0, 0, -15, 0f, 0f, 0f, 0f, 1.0f, 0.0f);

This is saying set your camera on the 'z' axis at -15 and look at the
origin (0,0,0) and make it look up (0,1,0) See the docs for full detail.
This populate your client memory mVMatrix.

then do

//take your width and height of the window and do
float ratio = (float) w / h;
Matrix.frustumM(mProjMatrix, 0, -ratio * 30, ratio * 30, -30 //top,
30//bottom, 3, 7);

Read up on frustum to give it enough height and width and some depth to fit
your coords. You get the projection matrix.

Now do Matrix.Multiply to do

final MVP = projection * mVMarix;

then send your position attributes to the shader and in the shader

gl_position = final MVP * your_position_attribute; //like all matrix
multiplications order is important


On Sun, Sep 2, 2012 at 10:39 AM, Satya Komatineni <
satya.komatin...@gmail.com> wrote:

> Sorry this line
>
> Finally to get your gl_position = mvp * gl_position; and not the other way.
>
>
> should read
>
> Finally to get your gl_position = mvp * positionAttributeVariable; and not
> the other way.
>
>
> On Sat, Sep 1, 2012 at 11:10 PM, Satya Komatineni <
> satya.komatin...@gmail.com> wrote:
>
>> Guich,
>> Given a number of ways how to do the same thing in OpenGL it will be
>> quite hard to debug.
>>
>> On Sat, Sep 1, 2012 at 9:11 AM, guich  wrote:
>>
>>> Hi,
>>>
>>> I've spent a full day trying to draw a series of points using GL_POINTS.
>>> I know i could use a texture, but i want to learn how to draw points. The
>>> resulting image (zoomed) is shown here:
>>>
>>> The code is written below. Any help on why are only 4 points appearing
>>> is greatly appreciated. Although it is possible to create your model, view,
>>> and projection matrices, it is better to use Matrix class and use the
>>> methods available on that class to generate the required matrices.
>>>
>>
>> To get the view matrix you can call
>> Matrix.setLookAtM(viewMatrix)
>>
>> To get the projection matrix
>> Matrix.frustumM(projectionMatrix)
>>
>> Then you can get your ModelViewProjection matrix by doing
>> Matrix.multiplyMM(mvp, projmatrix, viewmatrix)
>>
>> Finally to get your gl_position = mvp * gl_position; and not the other
>> way.
>>
>> I would start with a simple program that works and then gradually
>> increase the complexity. A triangle or a square is a good place to start
>> and then make it work using the examples in the tutorial on the android
>> developer site.
>>
>> If there is a specific issue that you are not clear ask that specifically
>> and you may be able to debug it that way
>>
>> http://satyakomatineni.com/android/training
>> http://satyakomatineni.com
>> http://androidbook.com
>> http://twitter.com/SatyaKomatineni
>>
>>
>>>
>>> <https://lh5.googleusercontent.com/-lelPSZoY4dw/UEIH5mVQfII/AD4/o5q5GMFuL00/s1600/points.png>
>>>
>>> public class MainActivity extends Activity
>>> {
>>>class MyGLSurfaceView extends GLSurfaceView
>>>{
>>>   public MyGLSurfaceView(Context context)
>>>   {
>>>  super(context);
>>>
>>>  setEGLContextClientVersion(2); // Create an OpenGL ES 2.0
>>> context.
>>>  setEGLConfigChooser(8, 8, 8, 8, 0, 0);
>>>  getHolder().setFormat(PixelFormat.RGBA_);
>>>  setRenderer(new MyGLRenderer()); // Set the Renderer for
>>> drawing on the GLSurfaceView
>>> // setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); // Render
>>> the view only when there is a change in the drawing data (must be after
>>> setRenderer!)
>>>   }
>>>}
>>>
>>>public void onCreate(Bundle savedInstanceState)
>>>{
>>>super.onCreate(savedInstanceState);
>>>setContentView(new MyGLSurfaceView(this));
>>>}
>>> }
>>>
>>> class MyGLRenderer implements GLSurfaceView.Renderer
>>> {
>>>byte[][] bitmap = {
>>>  {1,1,1,1,1,1,1,1},
>>>  {1,0,0,1,1,0,0,1},
>>>

[android-developers] How come there is no PROFILE specific URI for raw contact data in the contact api?

2011-11-21 Thread Satya Komatineni

I see that there is a URI for inserting/contributing a raw contact to
the new (4.0) personal profile

ContactsContract.Profile.CONTENT_RAW_CONTACTS_URI

I am able to use this URI to insert a raw contact (with a specific
account type and name) into the personal profile.

However I don't see a corresponding URI for the Data contract such as

ContactsContract.Data.PROFILE_CONTENT_URI

How do one go about addint a data element to a raw contact that
contributes to a profile?

For example I ran the following code

private void insertPhoneNumber(long rawContactId)
{
  ContentValues cv = new ContentValues();
  cv.put(Data.RAW_CONTACT_ID, rawContactId);
  cv.put(Data.IS_USER_PROFILE, "1");
  cv.put(Data.MIMETYPE, Phone.CONTENT_ITEM_TYPE);
  cv.put(Phone.NUMBER,"P123 123 " + rawContactId);
  cv.put(Phone.TYPE,Phone.TYPE_HOME);
  this.mContext.getContentResolver().insert(Data.CONTENT_URI, cv);
  if (puri == null) {
  log("Not able to insert phone number");
  }
  else {
  log("Not able to insert phone number");   
  }
}

This returns a NULL phone uri indicating that the operation failed.

I am not able to get a clear picture from the documentation. I see
that there are two databases: one for the regular contacts
(contacts.db) and one for the profile contacts (profile.db). I also
see that the raw contacts for profile and the regular contacts are
kept separately.

However I am not able to insert a data value for a personal profile
raw contact.

Appreciate if someone can clarify

Thanks
Satya

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[android-developers] Re: How come there is no PROFILE specific URI for raw contact data in the contact api?

2011-11-22 Thread Satya Komatineni

The immediate problem seem to be "my over caution" that made me put

 cv.put(Data.IS_USER_PROFILE, "1");

My reasoning was that this will be used to distinguish whether to add
the data element to the profile raw contact or the plain raw contact.

That paranoia seem to be unfounded.

when I remove this the code worked fine even with the same
Data.CONTENT_URI with out the need for Data.PROFILE_CONTENT_URI.

The code underneath seem to know this difference by merely looking at
the raw contact id passed in. There must be some logic the code is
using to see where this raw contact id is from.

Anyways temporarily I understand a little m ore.

(Ali, thanks for the link as well)

On Mon, Nov 21, 2011 at 3:48 PM, Satya Komatineni
 wrote:
> I see that there is a URI for inserting/contributing a raw contact to
> the new (4.0) personal profile
>
> ContactsContract.Profile.CONTENT_RAW_CONTACTS_URI
>
> I am able to use this URI to insert a raw contact (with a specific
> account type and name) into the personal profile.
>
> However I don't see a corresponding URI for the Data contract such as
>
> ContactsContract.Data.PROFILE_CONTENT_URI
>
> How do one go about addint a data element to a raw contact that
> contributes to a profile?
>
> For example I ran the following code
>
> private void insertPhoneNumber(long rawContactId)
> {
>  ContentValues cv = new ContentValues();
>  cv.put(Data.RAW_CONTACT_ID, rawContactId);
>  cv.put(Data.IS_USER_PROFILE, "1");
>  cv.put(Data.MIMETYPE, Phone.CONTENT_ITEM_TYPE);
>  cv.put(Phone.NUMBER,"P123 123 " + rawContactId);
>  cv.put(Phone.TYPE,Phone.TYPE_HOME);
>  this.mContext.getContentResolver().insert(Data.CONTENT_URI, cv);
>  if (puri == null) {
>      log("Not able to insert phone number");
>  }
>  else {
>      log("Not able to insert phone number");
>  }
> }
>
> This returns a NULL phone uri indicating that the operation failed.
>
> I am not able to get a clear picture from the documentation. I see
> that there are two databases: one for the regular contacts
> (contacts.db) and one for the profile contacts (profile.db). I also
> see that the raw contacts for profile and the regular contacts are
> kept separately.
>
> However I am not able to insert a data value for a personal profile
> raw contact.
>
> Appreciate if someone can clarify
>
> Thanks
> Satya
>



-- 
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http://www.satyakomatineni.com
http://www.androidbook.com

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[android-developers] Help: I have git on windows. I just want to a) see b) download a speciifc android repository

This is really frustrating try to see/get android source code on windows.

Previously this is fine with the online browsing as the repositories
were available for online browsing.

Anyways, I have downloaded git on windows.

I dont need to compile on windows. I just want to download a
repository to see the source for clarification,

I will seriously appreciate if some can answer the following questions:

1. is there a new git URL that I can use the git clone on?
2. How can I see a list of repositories that could comprise android?
3. Can I clone one of these repositories with just git?


Thank you so very much
(Yes I did read about 50 messages on stackoverflow and here...)
(I am really not prepared to install a linux to get a repository
out..How may operating systems does it take to change a light bulb!!)
-- 
Satya Komatineni
http://www.satyakomatineni.com
http://www.androidbook.com

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[android-developers] Re: Help: I have git on windows. I just want to a) see b) download a speciifc android repository

Ok, I may be getting somewhere, the following seem to work

git clone https://android.googlesource.com/platform/manifest.git

and

git clone https://android.googlesource.com/platform/frameworks/base.git

will keep you posted

On Wed, Nov 23, 2011 at 7:59 AM, Satya Komatineni
 wrote:
> This is really frustrating try to see/get android source code on windows.
>
> Previously this is fine with the online browsing as the repositories
> were available for online browsing.
>
> Anyways, I have downloaded git on windows.
>
> I dont need to compile on windows. I just want to download a
> repository to see the source for clarification,
>
> I will seriously appreciate if some can answer the following questions:
>
> 1. is there a new git URL that I can use the git clone on?
> 2. How can I see a list of repositories that could comprise android?
> 3. Can I clone one of these repositories with just git?
>
>
> Thank you so very much
> (Yes I did read about 50 messages on stackoverflow and here...)
> (I am really not prepared to install a linux to get a repository
> out..How may operating systems does it take to change a light bulb!!)
> --
> Satya Komatineni
> http://www.satyakomatineni.com
> http://www.androidbook.com
>



-- 
Satya Komatineni
http://www.satyakomatineni.com
http://www.androidbook.com

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Re: [android-developers] Help: I have git on windows. I just want to a) see b) download a speciifc android repository

Mark,
thank you very much. Really appreciate your help on this forum.

The google code search doesnt seem to bring out the 4.0 code. At lease
on my initial search. For instance the contact provider implementation
doesnt seem to match what is there in the API docs.

I will check again. may be i am missing something on code search.

Also I am glad to know, if that is going to be really true, that the
online browsing may be coming back soon.

again thanks a bunch
Satya

On Wed, Nov 23, 2011 at 8:13 AM, Mark Murphy  wrote:
> On Wed, Nov 23, 2011 at 7:59 AM, Satya Komatineni
>  wrote:
>> This is really frustrating try to see/get android source code on windows.
>>
>> Previously this is fine with the online browsing as the repositories
>> were available for online browsing.
>
> Use Google Code Search, at least for the next five weeks.
>
>> Anyways, I have downloaded git on windows.
>>
>> I dont need to compile on windows. I just want to download a
>> repository to see the source for clarification,
>>
>> I will seriously appreciate if some can answer the following questions:
>>
>> 1. is there a new git URL that I can use the git clone on?
>
> There never was just a single git URL, AFAIK. You use the repo command
> in Cygwin to download a whole boatload of repositories.
>
> Instead, clone:
>
> https://android.googlesource.com/platform/manifest
>
> Look at default.xml. It contains a bunch of elements like:
>
> 
>
> The path appears to be relative to
> https://android.googlesource.com/platform, so you can then clone:
>
> https://android.googlesource.com/platform/packages/apps/Email
>
>> 2. How can I see a list of repositories that could comprise android?
>
> I think that page was lost when the GitWeb interface was taken down.
>
>> 3. Can I clone one of these repositories with just git?
>
> See my answer to #1.
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://github.com/commonsguy
> http://commonsware.com/blog | http://twitter.com/commonsguy
>
> Android App Developer Books: http://commonsware.com/books
>
> --
> You received this message because you are subscribed to the Google
> Groups "Android Developers" group.
> To post to this group, send email to android-developers@googlegroups.com
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> android-developers+unsubscr...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/android-developers?hl=en



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http://www.satyakomatineni.com
http://www.androidbook.com

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Re: [android-developers] Help: I have git on windows. I just want to a) see b) download a speciifc android repository