[android-developers] Android ebooks

[Jupiterz]

Hi everyone,

Can anyone share Android e books which i can download.

Many thanks

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[android-developers] Re: Menu

[skink]

On Aug 20, 8:41 am, Sivaprakash 
wrote:
> Hi
>
> I want to create a menu as if shown in the below image. Is it a context menu
> or something special to attach along with the button which is clicked.
>
> --
> - Prakash.
>
>  menu.png
> 10KViewDownload


See:

http://developer.android.com/reference/android/widget/PopupWindow.html

pskink

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Re: [android-developers] Android ebooks

[vijayakumar M]

hi

check this url
http://iamvijayakumar.blogspot.com/2011/01/android-tutorial-free-download-pdf.html


On Sat, Aug 20, 2011 at 12:32 PM, Jupiterz  wrote:

> Hi everyone,
>
> Can anyone share Android e books which i can download.
>
> Many thanks
>
> --
> You received this message because you are subscribed to the Google
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-- 




"Nobody can go back and start a new beginning, but anyone can start today
and make a new ending"
-
Thanks,
Regards,
νιנαｿαkum@r M
BloG:http://iamvijayakumar.blogspot.com/

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[android-developers] Re: Android adapter returning LinearLayout

[skink]

Snowak wrote:
> I have a custom adapter for ListView and I need to return LinearLayout
> from getView(). The reason I'm doing it is that I have custom
> component which extends LinearLayout and need to be created from code.
> The problem is that if I return any LinearLayout from getView(), the
> application crashes. How can I get it working? I can't inflate the
> View from xml, everything has to be done via code.
>
> Thanks

logcat?

pskink

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Re: [android-developers] Android ebooks

[Appaholics]

That book is by Mark Murphy. Don't use pirated links. Get it from him if you
want it.

On Sat, Aug 20, 2011 at 12:38 PM, vijayakumar M wrote:

> hi
>
> check this url
>
> http://iamvijayakumar.blogspot.com/2011/01/android-tutorial-free-download-pdf.html
>
>
>
> On Sat, Aug 20, 2011 at 12:32 PM, Jupiterz wrote:
>
>> Hi everyone,
>>
>> Can anyone share Android e books which i can download.
>>
>> Many thanks
>>
>> --
>> 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
>> To unsubscribe from this group, send email to
>> android-developers+unsubscr...@googlegroups.com
>> For more options, visit this group at
>> http://groups.google.com/group/android-developers?hl=en
>
>
>
>
> --
>
>
>
>
> "Nobody can go back and start a new beginning, but anyone can start today
> and make a new ending"
> -
> Thanks,
> Regards,
> νιנαｿαkum@r M
> BloG:http://iamvijayakumar.blogspot.com/
>
>
>
>
>
>  --
> You received this message because you are subscribed to the Google
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>



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required to have complete control)
http://www.raghavsood.com/
https://market.android.com/developer?pub=Appaholics
http://www.appaholics.in/

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Re: [android-developers] Re: I need a simple android application that can view and create excel spreadsheets

[vineeshkc]

hi

thaks all of you for valuable response

actulaay i am trying to develop android applicaton
that  should be compatible with excel functions and include view,write,save
to folder, delete, click any cell to enter edit mode, and click to email as
attachment
thats my requirement



On Sat, Aug 20, 2011 at 12:23 PM, martypantsROK  wrote:

> I use jxlapi - very easy to use.
>
> On Aug 20, 1:56 pm, vineeshkc  wrote:
> > hai
> >
> > I need a simple android application that can view and create excel
> > spreadsheets
> >
> > any  idea or suggestion helpful to me pls
>
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>

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Re: [android-developers] Re: I need a simple android application that can view and create excel spreadsheets

[Appaholics]

Then why don't you Google the bits and pieces to make your app? We can help
you with a specific problem, not write the entire app. (Unless you are
paying us.)

Thanks

On Sat, Aug 20, 2011 at 1:53 PM, vineeshkc  wrote:

> hi
>
> thaks all of you for valuable response
>
> actulaay i am trying to develop android applicaton
> that  should be compatible with excel functions and include view,write,save
> to folder, delete, click any cell to enter edit mode, and click to email as
> attachment
> thats my requirement
>
>
>
> On Sat, Aug 20, 2011 at 12:23 PM, martypantsROK wrote:
>
>> I use jxlapi - very easy to use.
>>
>> On Aug 20, 1:56 pm, vineeshkc  wrote:
>> > hai
>> >
>> > I need a simple android application that can view and create excel
>> > spreadsheets
>> >
>> > any  idea or suggestion helpful to me pls
>>
>> --
>> 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
>> To unsubscribe from this group, send email to
>> 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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>



-- 
--
Raghav Sood
CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles
required to have complete control)
http://www.raghavsood.com/
https://market.android.com/developer?pub=Appaholics
http://www.appaholics.in/

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Re: [android-developers] Re: I need a simple android application that can view and create excel spreadsheets

[vineeshkc]

hai   Appaholics

i am not asking to develop the application

simply asked any Appaholics
is any api like jxl.jar is available


On Sat, Aug 20, 2011 at 2:05 PM, Appaholics  wrote:
>
> Then why don't you Google the bits and pieces to make your app? We can help 
> you with a specific problem, not write the entire app. (Unless you are paying 
> us.)
> Thanks
>
> On Sat, Aug 20, 2011 at 1:53 PM, vineeshkc  wrote:
>>
>> hi
>>
>> thaks all of you for valuable response
>>
>> actulaay i am trying to develop android applicaton
>> that  should be compatible with excel functions and include view,write,save 
>> to folder, delete, click any cell to enter edit mode, and click to email as 
>> attachment
>> thats my requirement
>>
>>
>>
>> On Sat, Aug 20, 2011 at 12:23 PM, martypantsROK  wrote:
>>>
>>> I use jxlapi - very easy to use.
>>>
>>> On Aug 20, 1:56 pm, vineeshkc  wrote:
>>> > hai
>>> >
>>> > I need a simple android application that can view and create excel
>>> > spreadsheets
>>> >
>>> > any  idea or suggestion helpful to me pls
>>>
>>> --
>>> 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
>>> To unsubscribe from this group, send email to
>>> 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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>
>
> --
> --
> Raghav Sood
> CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles 
> required to have complete control)
> http://www.raghavsood.com/
> https://market.android.com/developer?pub=Appaholics
> http://www.appaholics.in/
>
> --
> You received this message because you are subscribed to the Google
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Re: [android-developers] Re: I need a simple android application that can view and create excel spreadsheets

[Appaholics]

http://www.vogella.de/articles/JavaExcel/article.html

On Sat, Aug 20, 2011 at 3:04 PM, vineeshkc  wrote:

> hai   Appaholics
>
> i am not asking to develop the application
>
> simply asked any Appaholics
> is any api like jxl.jar is available
>
>
> On Sat, Aug 20, 2011 at 2:05 PM, Appaholics 
> wrote:
> >
> > Then why don't you Google the bits and pieces to make your app? We can
> help you with a specific problem, not write the entire app. (Unless you are
> paying us.)
> > Thanks
> >
> > On Sat, Aug 20, 2011 at 1:53 PM, vineeshkc  wrote:
> >>
> >> hi
> >>
> >> thaks all of you for valuable response
> >>
> >> actulaay i am trying to develop android applicaton
> >> that  should be compatible with excel functions and include
> view,write,save to folder, delete, click any cell to enter edit mode, and
> click to email as attachment
> >> thats my requirement
> >>
> >>
> >>
> >> On Sat, Aug 20, 2011 at 12:23 PM, martypantsROK 
> wrote:
> >>>
> >>> I use jxlapi - very easy to use.
> >>>
> >>> On Aug 20, 1:56 pm, vineeshkc  wrote:
> >>> > hai
> >>> >
> >>> > I need a simple android application that can view and create excel
> >>> > spreadsheets
> >>> >
> >>> > any  idea or suggestion helpful to me pls
> >>>
> >>> --
> >>> 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
> >>> To unsubscribe from this group, send email to
> >>> android-developers+unsubscr...@googlegroups.com
> >>> For more options, visit this group at
> >>> http://groups.google.com/group/android-developers?hl=en
> >>
> >> --
> >> 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
> >> To unsubscribe from this group, send email to
> >> android-developers+unsubscr...@googlegroups.com
> >> For more options, visit this group at
> >> http://groups.google.com/group/android-developers?hl=en
> >
> >
> > --
> > --
> > Raghav Sood
> > CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles
> required to have complete control)
> > http://www.raghavsood.com/
> > https://market.android.com/developer?pub=Appaholics
> > http://www.appaholics.in/
> >
> > --
> > 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
> > To unsubscribe from this group, send email to
> > android-developers+unsubscr...@googlegroups.com
> > For more options, visit this group at
> > http://groups.google.com/group/android-developers?hl=en
>
> --
> You received this message because you are subscribed to the Google
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>



-- 
--
Raghav Sood
CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles
required to have complete control)
http://www.raghavsood.com/
https://market.android.com/developer?pub=Appaholics
http://www.appaholics.in/

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[android-developers] NaveenShrivastva wants to chat

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Re: [android-developers] Re: I need a simple android application that can view and create excel spreadsheets

[vineeshkc]

hi

thanks dear Appaholics

On Sat, Aug 20, 2011 at 3:08 PM, Appaholics  wrote:
> http://www.vogella.de/articles/JavaExcel/article.html
>
> On Sat, Aug 20, 2011 at 3:04 PM, vineeshkc  wrote:
>>
>> hai   Appaholics
>>
>> i am not asking to develop the application
>>
>> simply asked any Appaholics
>> is any api like jxl.jar is available
>>
>>
>> On Sat, Aug 20, 2011 at 2:05 PM, Appaholics 
>> wrote:
>> >
>> > Then why don't you Google the bits and pieces to make your app? We can
>> > help you with a specific problem, not write the entire app. (Unless you are
>> > paying us.)
>> > Thanks
>> >
>> > On Sat, Aug 20, 2011 at 1:53 PM, vineeshkc  wrote:
>> >>
>> >> hi
>> >>
>> >> thaks all of you for valuable response
>> >>
>> >> actulaay i am trying to develop android applicaton
>> >> that  should be compatible with excel functions and include
>> >> view,write,save to folder, delete, click any cell to enter edit mode, and
>> >> click to email as attachment
>> >> thats my requirement
>> >>
>> >>
>> >>
>> >> On Sat, Aug 20, 2011 at 12:23 PM, martypantsROK 
>> >> wrote:
>> >>>
>> >>> I use jxlapi - very easy to use.
>> >>>
>> >>> On Aug 20, 1:56 pm, vineeshkc  wrote:
>> >>> > hai
>> >>> >
>> >>> > I need a simple android application that can view and create excel
>> >>> > spreadsheets
>> >>> >
>> >>> > any  idea or suggestion helpful to me pls
>> >>>
>> >>> --
>> >>> 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
>> >>> To unsubscribe from this group, send email to
>> >>> android-developers+unsubscr...@googlegroups.com
>> >>> For more options, visit this group at
>> >>> http://groups.google.com/group/android-developers?hl=en
>> >>
>> >> --
>> >> 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
>> >> To unsubscribe from this group, send email to
>> >> android-developers+unsubscr...@googlegroups.com
>> >> For more options, visit this group at
>> >> http://groups.google.com/group/android-developers?hl=en
>> >
>> >
>> > --
>> > --
>> > Raghav Sood
>> > CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles
>> > required to have complete control)
>> > http://www.raghavsood.com/
>> > https://market.android.com/developer?pub=Appaholics
>> > http://www.appaholics.in/
>> >
>> > --
>> > 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
>> > To unsubscribe from this group, send email to
>> > android-developers+unsubscr...@googlegroups.com
>> > For more options, visit this group at
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>>
>> --
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>
>
> --
> --
> Raghav Sood
> CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles
> required to have complete control)
> http://www.raghavsood.com/
> https://market.android.com/developer?pub=Appaholics
> http://www.appaholics.in/
>
> --
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Re: [android-developers] Android ebooks

[Mark Murphy]

Those books are pirated (AFAIK), but neither the Sams' title nor _Pro
Android_ are mine.

Anyone can get free older copies of my books straight off my Web site:
http://commonsware.com. Click on a book title and choose the "Four-to-Free
Guarantee" tab.

On Sat, Aug 20, 2011 at 3:53 AM, Appaholics wrote:

> That book is by Mark Murphy. Don't use pirated links. Get it from him if
> you want it.
>
>
> On Sat, Aug 20, 2011 at 12:38 PM, vijayakumar M 
> wrote:
>
>> hi
>>
>> check this url
>>
>> http://iamvijayakumar.blogspot.com/2011/01/android-tutorial-free-download-pdf.html
>>
>>
>>
>> On Sat, Aug 20, 2011 at 12:32 PM, Jupiterz wrote:
>>
>>> Hi everyone,
>>>
>>> Can anyone share Android e books which i can download.
>>>
>>> Many thanks
>>>
>>> --
>>> 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
>>
>>
>>
>>
>> --
>>
>>
>>
>>
>> "Nobody can go back and start a new beginning, but anyone can start today
>> and make a new ending"
>> -
>> Thanks,
>> Regards,
>> νιנαｿαkum@r M
>> BloG:http://iamvijayakumar.blogspot.com/
>>
>>
>>
>>
>>
>>  --
>> You received this message because you are subscribed to the Google
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>>
>
>
>
> --
> --
> Raghav Sood
> CEO/Founder/Owner/Dictator/Tyrant at Appaholics (Basically all titles
> required to have complete control)
> http://www.raghavsood.com/
> https://market.android.com/developer?pub=Appaholics
> http://www.appaholics.in/
>
>  --
> You received this message because you are subscribed to the Google
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>



-- 
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Re: [android-developers] Android ebooks

[Appaholics]

Sorry I mixed up the two different eBook link threads that are recent. Meant
to post this on the other one.

Thanks

On Sat, Aug 20, 2011 at 3:27 PM, Mark Murphy wrote:

> Those books are pirated (AFAIK), but neither the Sams' title nor _Pro
> Android_ are mine.
>
> Anyone can get free older copies of my books straight off my Web site:
> http://commonsware.com. Click on a book title and choose the "Four-to-Free
> Guarantee" tab.
>
> On Sat, Aug 20, 2011 at 3:53 AM, Appaholics wrote:
>
>> That book is by Mark Murphy. Don't use pirated links. Get it from him if
>> you want it.
>>
>>
>> On Sat, Aug 20, 2011 at 12:38 PM, vijayakumar M > > wrote:
>>
>>> hi
>>>
>>> check this url
>>>
>>> http://iamvijayakumar.blogspot.com/2011/01/android-tutorial-free-download-pdf.html
>>>
>>>
>>>
>>> On Sat, Aug 20, 2011 at 12:32 PM, Jupiterz wrote:
>>>
 Hi everyone,

 Can anyone share Android e books which i can download.

 Many thanks

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>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>>
>>>
>>> "Nobody can go back and start a new beginning, but anyone can start today
>>> and make a new ending"
>>> -
>>> Thanks,
>>> Regards,
>>> νιנαｿαkum@r M
>>> BloG:http://iamvijayakumar.blogspot.com/
>>>
>>>
>>>
>>>
>>>
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[android-developers] Re: Dialog problems on orientation change

[Snowak]

Sorry for double posting, but there's one more thing that bothers me
regarding this problem. Dialog requires to pass Activity as a context,
but when changing screen orientation that activity is destroyed. How
can it use the cached dialog with invalid context? Is it setting it to
the new one?

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Re: [android-developers] Re: Dialog problems on orientation change

[Kostya Vasilyev]

The actual dialog objects get destroyed, and re-created around the time 
of onRestoreInstanceState in the new activity instance (causing 
onCreateDialog / onPrepareDialog to be called).


http://www.google.com/codesearch#uX1GffpyOZk/core/java/android/app/Activity.java&q=Activity%20package:android%20lang:%5Ejava$&type=cs&l=854 



-- Kostya

20.08.2011 14:04, Snowak пишет:

Sorry for double posting, but there's one more thing that bothers me
regarding this problem. Dialog requires to pass Activity as a context,
but when changing screen orientation that activity is destroyed. How
can it use the cached dialog with invalid context? Is it setting it to
the new one?



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[android-developers] opengl( how to move the objects )

[rajiv]

The problem is
switch (e.getAction())
{
case MotionEvent.ACTION_DOWN:
x=e.getX();
y=e.getY();
requestRender();
break;
case MotionEvent.ACTION_UP:
a=e.getX();
b=e.getY();
requestRender();
break;
}


Here the value of X and y and a & b are same but when it is Action_up
the co-ordinate of X Y & ab  should be different  Please help me

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[android-developers] Re: Missing ACTION_POINTER_UP and ACTION_POINTER_DOWN events

[rajiv]

Hi I am facing a similar problem what i am doing in my application is
I am trying to move the disc from one place to another place

switch (e.getAction())
{
case MotionEvent.ACTION_DOWN:
x=e.getX();
y=e.getY();
requestRender();
break;
case MotionEvent.ACTION_UP:
a=e.getX();
b=e.getY();
requestRender();
break;
}


but the problem is the value of x y & a.b are equall so trhe disc is
not moving at all it is blinking and the disc is coming in the same
place please help me

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[android-developers] Re: Dialog problems on orientation change

[Snowak]

So why does the Drawable fail to repeat? Looks like the problem lies
in restoring the dialog before whole layout is initialized.. which is
quite weird. Is there a way to retrieve the list of opened dialogs
associated to current Activity?

On 20 Sie, 12:11, Kostya Vasilyev  wrote:
> The actual dialog objects get destroyed, and re-created around the time
> of onRestoreInstanceState in the new activity instance (causing
> onCreateDialog / onPrepareDialog to be called).
>
> http://www.google.com/codesearch#uX1GffpyOZk/core/java/android/app/Ac...
> 
>
> -- Kostya
>
> 20.08.2011 14:04, Snowak пишет:
>
> > Sorry for double posting, but there's one more thing that bothers me
> > regarding this problem. Dialog requires to pass Activity as a context,
> > but when changing screen orientation that activity is destroyed. How
> > can it use the cached dialog with invalid context? Is it setting it to
> > the new one?
>
> --
> Kostya Vasilyev

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[android-developers] How to check for free RAM memory available

[Pradeep]

Hi All,

What is the best way to check for free RAM memory available for apps ?

"adb shell top" gives a much lesser value as it does not exclude the
memory being used for caching.

What is the free memory value that "Advanced Task Manager" gives ?

Regards,
Pradeep

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[android-developers] Updating UI from external

[Ash]

Hi All,

I realize that this question of mine has already been asked before (probably 
not in the same context but similar). However, even after reading a number 
of forum threads and looking at online examples, I am still not clear. I 
hope one of you can guide me.

Here is the issue that I am facing. I have an activity which has a button. 
This button needs to be enabled/disabled depending on an external condition. 
We have a 3rd party library which has an observer class.

So basically in my android application, I have created a new class which 
extends this 3rd party observer class. Code snippet as follow:

class myObserver extends third.party.observer
{
@Override
public void onConnect()
{
// when this function is called I wish to enable the button on my 
UI.
}

@Override
public void onDisconnect()
{
// when this function is called I wish to disable the button on my 
UI.
}
} 

In my activity class, I create a new myObserver object and register it for 
events from our third party library as follow:
public class myActivity extends Activity
{
private static myObserver tester = new myObserver()

@Override
public void onCreate(Bundle savedInstanceState)
{


third_party_registerObserverFunction(tester)
}
}

My question is how can use myObserver class to update the button in 
'myActivity'.
The function 'onConnect' and 'onDisconnect' can be called at any time and I 
don't wish to implement polling (or timer) to check for variable status.

Please advice.

Thanks

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Re: [android-developers] Updating UI from external

[Mark Murphy]

On Sat, Aug 20, 2011 at 7:15 AM, Ash  wrote:
> My question is how can use myObserver class to update the button in
> 'myActivity'.

Step #1: have MyObserver hold onto an instance of MyActivity

Step #2: have MyObserver call methods on the MyActivity instance

> The function 'onConnect' and 'onDisconnect' can be called at any time and I
> don't wish to implement polling (or timer) to check for variable status.

If there are concerns about those methods being called on background
threads, use runOnUiThread on MyActivity to force the UI update work
to be done on the main application thread.

-- 
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Re: [android-developers] Updating UI from external

[Ash]

Hi Mark,
Thanks for the prompt reply. 
The onConnect and onDisconnect method will be called by background threads 
(running in the third party library). Hence I will have to take the 
runOnUIThread approach. 

I will try to look for examples in this. If you know of any site that gives 
an example of runOnUIThread and you can share that link it will be much 
appreciated.

Thanks

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Re: [android-developers] Updating UI from external

[Ash]

Assuming runOnUIThread is equivalent to AsyncTasks
http://developer.android.com/reference/android/os/AsyncTask.html


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Re: [android-developers] Updating UI from external

[Mark Murphy]

On Sat, Aug 20, 2011 at 7:38 AM, Ash  wrote:
> Assuming runOnUIThread is equivalent to AsyncTasks
> http://developer.android.com/reference/android/os/AsyncTask.html

AsyncTask is a class. runOnUiThread() is a method. You pass a Runnable
to runOnUiThread(), and if you are on a background thread, the
Runnable is posted to the main application thread's work queue for
eventual processing. Whatever is inside the run() method of the
Runnable is guaranteed to run on the main application thread.

For example, here is a listener from an AIDL-defined remote service
that uses runOnUiThread() to ensure that the events are passed to the
activity on the main application thread:

private final IScriptResult.Stub callback=new IScriptResult.Stub() {
public void success(final String result) {
  runOnUiThread(new Runnable() {
public void run() {
  successImpl(result);
}
  });
}

public void failure(final String error) {
  runOnUiThread(new Runnable() {
public void run() {
  failureImpl(error);
}
  });
}
  };

This is an instance of an anonymous inner class of the activity
itself, so successImpl() and failureImpl() are methods on the
activity.

-- 
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[android-developers] No accelerated colorspace conversion found from %s to %s. FFMpeg android

[Naveen]

No accelerated colorspace conversion found from %s to %s. facing this
issue in  FFMpeg android.please help me.

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Re: [android-developers] ListView items

[Goutom]

Hi Treking
This is not the answer.


On Fri, Aug 19, 2011 at 5:45 PM, TreKing  wrote:

> On Fri, Aug 19, 2011 at 7:41 PM, Goutom  wrote:
>
>> Any help?
>
>
> Use the adapter that backs the listview.
>
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices
>
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Re: [android-developers] ListView items

[Mark Murphy]

On Fri, Aug 19, 2011 at 8:41 PM, Goutom  wrote:
> I want to get all child of a listview.

Why?

>                 int count = listview.getAdapter().getCount();

This is not the number of children of the ListView. getChildCount() on
ListView is the number of children of the ListView.

> for (int i = 0; i < count; ++i) {
> View row = (View) listview.getChildAt(i); // this line return "null" when
> the view is not in focus is listview.
> CheckBox check = (CheckBox) row.findViewById(R.id.AppCheckBox);
> if (check.isChecked()) {
> // some code
> } else
> // some code
> }
> I have 10 row in listview, 8 in focus.

No, you have 8 rows in your ListView. Your adapter might have 10
items, but you only have 8 rows in the ListView.

> After looping 8 times it gives null for View row.

Of course. That's what you wrote.

If you didn't want it to crash, do not compare apples (number of items
in the adapter) to oranges (number of children of the ListView).

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
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[android-developers] how can i get the data created by function openDatabase from the webview?

[李白|字一日]

hello everyone,

i have a problem in retrieving data stored in webview by using html
database.
and it is working perfectly on the html page.

as the application involves, there is a demand that i get the stored data
from the webview.

after investigating into the sdk, i didn't find a way to get the data,

because the webview database is named privately with names like
"0001.db"
and in directories like
"file__0".

i only set the database path by the following code:

databasePath = this.getApplicationContext()
.getDir("database", Context.MODE_PRIVATE).getPath();
settings.setDatabasePath(databasePath);

which is different from the "0001.db" file name, and "file__0"
directory name.

so i can get the database data using given apis?

thanks in advance!

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[android-developers] DDMS - Sysinfo

[Pradeep]

Hi All,

On my device DDMS-Sysinfo-Memory Usage shows a pie chart with very
large section named "Inactive"

Any idea what this refers to ? How is it different from free memory ?

Regards,
Pradeep

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Re: [android-developers] how can i get the data created by function openDatabase from the webview?

[Mark Murphy]

On Sat, Aug 20, 2011 at 8:18 AM, 李白|字一日  wrote:
> hello everyone,
> i have a problem in retrieving data stored in webview by using html
> database.
> and it is working perfectly on the html page.
> as the application involves, there is a demand that i get the stored data
> from the webview.
> after investigating into the sdk, i didn't find a way to get the data,
> because the webview database is named privately with names like
> "0001.db"
> and in directories like
> "file__0".
> i only set the database path by the following code:
>     databasePath = this.getApplicationContext()
>         .getDir("database", Context.MODE_PRIVATE).getPath();
>     settings.setDatabasePath(databasePath);
> which is different from the "0001.db" file name, and "file__0"
> directory name.
> so i can get the database data using given apis?

I doubt it.

Rather than having the JavaScript use an HTML database, you should
have the JavaScript call an API your application exposes to the
WebView via addJavascriptInterface(). This will allow you to keep all
your business rules in the Java code, with a side benefit of being
able to consistently use SQLiteOpenHelper and such for accessing the
database.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy

_The Busy Coder's Guide to Android Development_ Version 3.6 Available!

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Re: [android-developers] Re: Dialog problems on orientation change

[Kostya Vasilyev]

There really isn't "restoring of dialogs" - more like "recreation of 
dialogs".


As such, it goes through your new activity's onCreateDialog after the 
orientation change.


You could try loading the drawable and setting it into the dialog layout 
from code. Perhaps calling setTileMode{X/Y/XY} along the way.


-- Kostya

20.08.2011 15:06, Snowak пишет:

So why does the Drawable fail to repeat? Looks like the problem lies
in restoring the dialog before whole layout is initialized.. which is
quite weird. Is there a way to retrieve the list of opened dialogs
associated to current Activity?


--
Kostya Vasilyev

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Re: [android-developers] how can i get the data created by function openDatabase from the webview?

[李白|字一日]

thanks,

it seems the sqlite database opening mechanism is very complicated in
android.

even if i specify the file name to "0001.db" like the
followings:

  1. path = path + "/file__0/0001.db";
  2. path = path + "/../databases/webview.db";
  3. path = path + "/Databases.db";

i can see all these give error messages.
1, 3 declare the local table is missing.
2 can be initialized but not the database where the webview data is stored.

it is every different from the origin api from sqlite c;

because my application is based on webview,
it is not a good way to change it again to java api based which may cause
the data lose for users.

and web apps will be my focus later.

2011/8/20 Mark Murphy 

> On Sat, Aug 20, 2011 at 8:18 AM, 李白|字一日  wrote:
> > hello everyone,
> > i have a problem in retrieving data stored in webview by using html
> > database.
> > and it is working perfectly on the html page.
> > as the application involves, there is a demand that i get the stored data
> > from the webview.
> > after investigating into the sdk, i didn't find a way to get the data,
> > because the webview database is named privately with names like
> > "0001.db"
> > and in directories like
> > "file__0".
> > i only set the database path by the following code:
> > databasePath = this.getApplicationContext()
> > .getDir("database", Context.MODE_PRIVATE).getPath();
> > settings.setDatabasePath(databasePath);
> > which is different from the "0001.db" file name, and
> "file__0"
> > directory name.
> > so i can get the database data using given apis?
>
> I doubt it.
>
> Rather than having the JavaScript use an HTML database, you should
> have the JavaScript call an API your application exposes to the
> WebView via addJavascriptInterface(). This will allow you to keep all
> your business rules in the Java code, with a side benefit of being
> able to consistently use SQLiteOpenHelper and such for accessing the
> database.
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://github.com/commonsguy
> http://commonsware.com/blog | http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 3.6 Available!
>
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Re: [android-developers] how can i get the data created by function openDatabase from the webview?

[Mark Murphy]

On Sat, Aug 20, 2011 at 9:15 AM, 李白|字一日  wrote:
> because my application is based on webview,
> it is not a good way to change it again to java api based which may cause
> the data lose for users.
> and web apps will be my focus later.

Then don't access it from the Java code. Use loadUrl("javascript:...")
from Java to execute some JavaScript that calls an API that pushes the
data from the WebView back into your Android app via an interface
defined via addJavascriptInterface().

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[android-developers] Text gone when clicked

[ndiiie 90]

Hi guys,

in many applications that are published out there,

I see that some of them in editText of password and username, there are some
text with gray color (usually) and when user clicked it, the text is gone..
what is the attribute of editText to do it?

Or i must code it manually to response user clicked, i delete the text
inside it??


Thanks,

Rendy

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Re: [android-developers] Text gone when clicked

[Mark Murphy]

On Sat, Aug 20, 2011 at 10:59 AM, ndiiie 90  wrote:
> I see that some of them in editText of password and username, there are some
> text with gray color (usually) and when user clicked it, the text is gone..
> what is the attribute of editText to do it?

android:hint

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Re: [android-developers] how can i get the data created by function openDatabase from the webview?

[李白|字一日]

thanks,

it seems a quite reasonable way by now.

it adds two questions to me:

1. how to invoke javascript only without loading a webview?
2. how to pass a callback to javascript and make java invocation
synchronous?

would you please give me some advise or hints, Mark?

2011/8/20 Mark Murphy 

> On Sat, Aug 20, 2011 at 9:15 AM, 李白|字一日  wrote:
> > because my application is based on webview,
> > it is not a good way to change it again to java api based which may cause
> > the data lose for users.
> > and web apps will be my focus later.
>
> Then don't access it from the Java code. Use loadUrl("javascript:...")
> from Java to execute some JavaScript that calls an API that pushes the
> data from the WebView back into your Android app via an interface
> defined via addJavascriptInterface().
>
> --
> Mark Murphy (a Commons Guy)
> http://commonsware.com | http://github.com/commonsguy
> http://commonsware.com/blog | http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 3.6 Available!
>
> --
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Re: [android-developers] how can i get the data created by function openDatabase from the webview?

[Mark Murphy]

On Sat, Aug 20, 2011 at 11:38 AM, 李白|字一日  wrote:
> it adds two questions to me:
>     1. how to invoke javascript only without loading a webview?

Um, you can't, unless you add Rhino or another JavaScript interpreter
to your project. Moreover, you seem to be missing the point.

You EITHER need to write a Java-centric app that HAPPENS to use a
WebView for a bit of rendering (and therefore the database should be
managed by Java code) OR you need to write a WebView-centric app that
HAPPENS to need a bit of Java code here and there (and therefore the
database should be managed by the JavaScript code).

If there are situations where you have Java code needing access to the
data with no WebView around, then, by definition, you are writing a
Java-centric app.

>     2. how to pass a callback to javascript and make java invocation
> synchronous?

Very little is guaranteed to be synchronous in this space, because
AFAIK WebView uses its own threads (from WebKit).

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[android-developers] java.lang.ClassCastException: android.widget.EditText

[Spica]

I removed EditText from my layout and after that i started getting
"Force close" error. My app is not starting at all. Here is the trace
i captured with logcat;

=
E/AndroidRuntime( 1335): FATAL EXCEPTION: main
E/AndroidRuntime( 1335): java.lang.RuntimeException: Unable to start
activity Co
mponentInfo{com.myApp/com.myApp.DashBoard}:
java.lang.ClassCastException: android.widget.EditText
E/AndroidRuntime( 1335):at
android.app.ActivityThread.performLaunchActiv
ity(ActivityThread.java:2781)
E/AndroidRuntime( 1335):at
android.app.ActivityThread.handleLaunchActivi
ty(ActivityThread.java:2797)
E/AndroidRuntime( 1335):at android.app.ActivityThread.access
$2300(Activi
tyThread.java:135)
E/AndroidRuntime( 1335):at android.app.ActivityThread
$H.handleMessage(Ac
tivityThread.java:2132)
E/AndroidRuntime( 1335):at
android.os.Handler.dispatchMessage(Handler.ja
va:99)
E/AndroidRuntime( 1335):at android.os.Looper.loop(Looper.java:
143)
E/AndroidRuntime( 1335):at
android.app.ActivityThread.main(ActivityThrea
d.java:4914)
E/AndroidRuntime( 1335):at
java.lang.reflect.Method.invokeNative(Native
Method)
E/AndroidRuntime( 1335):at
java.lang.reflect.Method.invoke(Method.java:5
21)
E/AndroidRuntime( 1335):at com.android.internal.os.ZygoteInit
$MethodAndA
rgsCaller.run(ZygoteInit.java:858)
E/AndroidRuntime( 1335):at
com.android.internal.os.ZygoteInit.main(Zygot
eInit.java:616)
E/AndroidRuntime( 1335):at
dalvik.system.NativeStart.main(Native Method)

E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
android.widget
.EditText
E/AndroidRuntime( 1335):at
com.myApp.DashBoard.onCreate(DashBoard.java
:70)
E/AndroidRuntime( 1335):at
android.app.Instrumentation.callActivityOnCre
ate(Instrumentation.java:1065)
E/AndroidRuntime( 1335):at
android.app.ActivityThread.performLaunchActiv
ity(ActivityThread.java:2745)


I am not using the removed EditText in the code even then it is
throwing this error...

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Re: [android-developers] java.lang.ClassCastException: android.widget.EditText

[Mark Murphy]

Try cleaning your project (Project > Clean from the Eclipse main menu,
or ant clean from the command line). Typically, I find that these
ClassCastExceptions are because the widget IDs are out of sync between
the resources in the APK file and your already-compiled .class files.
Cleaning the project forces the .class files to be rebuilt.

On Sat, Aug 20, 2011 at 12:16 PM, Spica  wrote:
> I removed EditText from my layout and after that i started getting
> "Force close" error. My app is not starting at all. Here is the trace
> i captured with logcat;
>
> =
> E/AndroidRuntime( 1335): FATAL EXCEPTION: main
> E/AndroidRuntime( 1335): java.lang.RuntimeException: Unable to start
> activity Co
> mponentInfo{com.myApp/com.myApp.DashBoard}:
> java.lang.ClassCastException: android.widget.EditText
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.performLaunchActiv
> ity(ActivityThread.java:2781)
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.handleLaunchActivi
> ty(ActivityThread.java:2797)
> E/AndroidRuntime( 1335):        at android.app.ActivityThread.access
> $2300(Activi
> tyThread.java:135)
> E/AndroidRuntime( 1335):        at android.app.ActivityThread
> $H.handleMessage(Ac
> tivityThread.java:2132)
> E/AndroidRuntime( 1335):        at
> android.os.Handler.dispatchMessage(Handler.ja
> va:99)
> E/AndroidRuntime( 1335):        at android.os.Looper.loop(Looper.java:
> 143)
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.main(ActivityThrea
> d.java:4914)
> E/AndroidRuntime( 1335):        at
> java.lang.reflect.Method.invokeNative(Native
> Method)
> E/AndroidRuntime( 1335):        at
> java.lang.reflect.Method.invoke(Method.java:5
> 21)
> E/AndroidRuntime( 1335):        at com.android.internal.os.ZygoteInit
> $MethodAndA
> rgsCaller.run(ZygoteInit.java:858)
> E/AndroidRuntime( 1335):        at
> com.android.internal.os.ZygoteInit.main(Zygot
> eInit.java:616)
> E/AndroidRuntime( 1335):        at
> dalvik.system.NativeStart.main(Native Method)
>
> E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> android.widget
> .EditText
> E/AndroidRuntime( 1335):        at
> com.myApp.DashBoard.onCreate(DashBoard.java
> :70)
> E/AndroidRuntime( 1335):        at
> android.app.Instrumentation.callActivityOnCre
> ate(Instrumentation.java:1065)
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.performLaunchActiv
> ity(ActivityThread.java:2745)
> 
>
> I am not using the removed EditText in the code even then it is
> throwing this error...
>
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Re: [android-developers] Re: Dialog problems on orientation change

[TreKing]

On Fri, Aug 19, 2011 at 11:56 PM, Snowak  wrote:

> Let me quote my post:
> "I'm not interested in forcing it to reload in onPrepareDialog,
> because it would require putting this code into every activity which
> use this dialog.".
>


> Do you really think your solution differ in any way?
>

Yes - you're not forcing anything to reload in onPrepareDialog - you don't
have to touch onPrepareDialog. Calling removeDialog() would cause the next
showDialog() to call createDialog() again.


> I would have to call removeDialog in every activity manually!
>

No, you could create a globally accessible function for this or any dialog
that you want to force re-creation on. This is what I do.

SomeStaticClass.showDialog(Activity a, int dialogID)
{
 a.removeDialog(dialogID);
 a.showDialog(dialogID);
}

Now in any activity that uses this dialog, since you already do showDialog()
(one assumes), you instead call the static function.


>  As for the Activity thing, could you give me more details?
>

I don't know what "Activity thing" you're referring to.


> And still the question remains - how can I force the activity to recreate
> all dialogs after orientation changes in elegant way?
>

Not sure what part of the configuration change is causing your issue, so
hard to say.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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[android-developers] Re: java.lang.ClassCastException: android.widget.EditText

[Spica]

Awesome... :
it worked after cleaning project...  thanks Mark

On Aug 20, 12:24 pm, Mark Murphy  wrote:
> Try cleaning your project (Project > Clean from the Eclipse main menu,
> or ant clean from the command line). Typically, I find that these
> ClassCastExceptions are because the widget IDs are out of sync between
> the resources in the APK file and your already-compiled .class files.
> Cleaning the project forces the .class files to be rebuilt.
>
>
>
>
>
>
>
>
>
> On Sat, Aug 20, 2011 at 12:16 PM, Spica  wrote:
> > I removed EditText from my layout and after that i started getting
> > "Force close" error. My app is not starting at all. Here is the trace
> > i captured with logcat;
>
> > =
> > E/AndroidRuntime( 1335): FATAL EXCEPTION: main
> > E/AndroidRuntime( 1335): java.lang.RuntimeException: Unable to start
> > activity Co
> > mponentInfo{com.myApp/com.myApp.DashBoard}:
> > java.lang.ClassCastException: android.widget.EditText
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.performLaunchActiv
> > ity(ActivityThread.java:2781)
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.handleLaunchActivi
> > ty(ActivityThread.java:2797)
> > E/AndroidRuntime( 1335):        at android.app.ActivityThread.access
> > $2300(Activi
> > tyThread.java:135)
> > E/AndroidRuntime( 1335):        at android.app.ActivityThread
> > $H.handleMessage(Ac
> > tivityThread.java:2132)
> > E/AndroidRuntime( 1335):        at
> > android.os.Handler.dispatchMessage(Handler.ja
> > va:99)
> > E/AndroidRuntime( 1335):        at android.os.Looper.loop(Looper.java:
> > 143)
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.main(ActivityThrea
> > d.java:4914)
> > E/AndroidRuntime( 1335):        at
> > java.lang.reflect.Method.invokeNative(Native
> > Method)
> > E/AndroidRuntime( 1335):        at
> > java.lang.reflect.Method.invoke(Method.java:5
> > 21)
> > E/AndroidRuntime( 1335):        at com.android.internal.os.ZygoteInit
> > $MethodAndA
> > rgsCaller.run(ZygoteInit.java:858)
> > E/AndroidRuntime( 1335):        at
> > com.android.internal.os.ZygoteInit.main(Zygot
> > eInit.java:616)
> > E/AndroidRuntime( 1335):        at
> > dalvik.system.NativeStart.main(Native Method)
>
> > E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> > android.widget
> > .EditText
> > E/AndroidRuntime( 1335):        at
> > com.myApp.DashBoard.onCreate(DashBoard.java
> > :70)
> > E/AndroidRuntime( 1335):        at
> > android.app.Instrumentation.callActivityOnCre
> > ate(Instrumentation.java:1065)
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.performLaunchActiv
> > ity(ActivityThread.java:2745)
> > 
>
> > I am not using the removed EditText in the code even then it is
> > throwing this error...
>
> > --
> > You received this message because you are subscribed to the Google
> > Groups "Android Developers" group.
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> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 3.6 Available!

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Re: [android-developers] ListView items

[TreKing]

On Sat, Aug 20, 2011 at 6:57 AM, Goutom  wrote:

> Hi Treking
> This is not the answer.
>

I respectfully disagree. But hey, it's your app. Good luck.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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Re: [android-developers] opengl( how to move the objects )

[TreKing]

On Sat, Aug 20, 2011 at 5:29 AM, rajiv  wrote:

> Here the value of X and y and a & b are same but when it is Action_up
> the co-ordinate of X Y & ab  should be different  Please help me
>

The little information you posted is not enough for anyone to help you. Try
debugging your code.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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[android-developers] Re: Emulator disables DPMS (then monitor doesn't sleep)

[Chris Stratton]

On Friday, August 19, 2011 1:21:51 PM UTC-4, pb wrote:
>
> I noticed that starting the emulator disables DPMS and it is not re- 
> enabled when the emulator closes.  So my monitor was never going to 
> sleep until I re-enabled DPMS manually.  Does anyone know why it does 
> this and/or how to fix it?  As a temporary solution I have wrapped the 
> executable in a shell script to run `xset +dpms` when the emulator 
> finishes, but this is probably not ideal.  Ubuntu 10.04.


It does, at least in the current state of the code, appear to be trying to 
handle this intelligently, ie, determine the setting on startup and restore 
it on exit:

http://android.git.kernel.org/?p=platform%2Fexternal%2Fqemu.git&a=search&h=HEAD&st=grep&s=dpms

You can look through the logs going back further than I did and see if 
that's been worked on since your version.  It's also possible it's still 
subtly broken in some way.

You should be able to compile a version without this, or even patch an 
existing binary (it took me all of 30 seconds with objdump to find a wrapper 
for DPMSDisable() that could be nop'd out).


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[android-developers] Re: Dialog problems on orientation change

[Snowak]

Thank you both, it looks like the Drawable fails to restore it's
tileMode when it's created before layout has been completely
initialized. It's weird, but I've managed to solve it by setting the
tileModeXY via code when creating the dialog.

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[android-developers] x and y

[bob]

Let's say you have an image, and you want to know the x and y of the
user's click.  Anyone know what widget to use?

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Re: [android-developers] how can i get the data created by function openDatabase from the webview?

[李白|字一日]

thanks a lot, Mark.

but it is really frustrating me.

i was hoping to get a simple resolution to my application..[?]



2011/8/20 Mark Murphy 

> On Sat, Aug 20, 2011 at 11:38 AM, 李白|字一日  wrote:
> > it adds two questions to me:
> > 1. how to invoke javascript only without loading a webview?
>
> Um, you can't, unless you add Rhino or another JavaScript interpreter
> to your project. Moreover, you seem to be missing the point.
>
> You EITHER need to write a Java-centric app that HAPPENS to use a
> WebView for a bit of rendering (and therefore the database should be
> managed by Java code) OR you need to write a WebView-centric app that
> HAPPENS to need a bit of Java code here and there (and therefore the
> database should be managed by the JavaScript code).
>
> If there are situations where you have Java code needing access to the
> data with no WebView around, then, by definition, you are writing a
> Java-centric app.
>

because the webview is limited to interact with services or widgets, and my
application should be evolved to be a more powerful one, i have to change it
to a webview riched and java riched one [?]



> > 2. how to pass a callback to javascript and make java invocation
> > synchronous?
>
> Very little is guaranteed to be synchronous in this space, because
> AFAIK WebView uses its own threads (from WebKit).


sad to hear it..


> --
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> http://commonsware.com | http://github.com/commonsguy
> http://commonsware.com/blog | http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to Android Development_ Version 3.6 Available!
>
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[android-developers] How was the RenderScript Balls Demo Video Made?

[newbyca]

i'd like to use direct video capture of my apps for making Android
Market promo videos. i know other devs have asked about this before
and up until now i hadn't found a way.

then recently i saw the RenderScript Balls demo on youtube:
http://www.youtube.com/watch?v=uQ5NumRfHN4

and it seems to be a direct capture. i also recently got a Xoom in my
test bed ... so i'm guessing the Balls video was made by connecting a
tablet to a TV via HDMI then recording from the TV? just hoping
someone could confirm?

i'm not much of a tv person so my tv is ancient and doesn't have HDMI-
in, nor do i have a way to record from a TV to a computer for editing
and format conversion. point being, i'd be willing to invest in a new
tv and pc card ... but would like to know that it's necessary first.
also, any pc card recommendations would be great, but i know that
subject isn't really germane to this forum :)

TIA//

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[android-developers] Vertical scrolling Fish Eye Menu

[joel witherspoon]

In the latest version of Facebook's Android App, they have a Fish-eye
scrolling menu that pops up when you click Most Recent in the top
right corner of the app. Can someone point me to a resource that has a
tutorial that implements this menu (if you know it)?

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Re: [android-developers] Re: Is it possible to use MonkeyRunner from java

[Vikram]

Dear Bill,

Why would I be getting the following error while trying to compile ?

Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved 
compilation problem: 
Type mismatch: cannot convert from AdbBackend to IMonkeyBackend

AM using what you had quoted to initiate the connection to the device.

CHeers,
Vikram.

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[android-developers] Re: java.lang.ClassCastException: android.widget.EditText

[RichardC]

E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
android.widget
.EditText
E/AndroidRuntime( 1335):at
com.myApp.DashBoard.onCreate(DashBoard.java
:70)

What's at line 70 in DashBoard.java?


On Aug 20, 5:16 pm, Spica  wrote:
> I removed EditText from my layout and after that i started getting
> "Force close" error. My app is not starting at all. Here is the trace
> i captured with logcat;
>
> =
> E/AndroidRuntime( 1335): FATAL EXCEPTION: main
> E/AndroidRuntime( 1335): java.lang.RuntimeException: Unable to start
> activity Co
> mponentInfo{com.myApp/com.myApp.DashBoard}:
> java.lang.ClassCastException: android.widget.EditText
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.performLaunchActiv
> ity(ActivityThread.java:2781)
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.handleLaunchActivi
> ty(ActivityThread.java:2797)
> E/AndroidRuntime( 1335):        at android.app.ActivityThread.access
> $2300(Activi
> tyThread.java:135)
> E/AndroidRuntime( 1335):        at android.app.ActivityThread
> $H.handleMessage(Ac
> tivityThread.java:2132)
> E/AndroidRuntime( 1335):        at
> android.os.Handler.dispatchMessage(Handler.ja
> va:99)
> E/AndroidRuntime( 1335):        at android.os.Looper.loop(Looper.java:
> 143)
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.main(ActivityThrea
> d.java:4914)
> E/AndroidRuntime( 1335):        at
> java.lang.reflect.Method.invokeNative(Native
> Method)
> E/AndroidRuntime( 1335):        at
> java.lang.reflect.Method.invoke(Method.java:5
> 21)
> E/AndroidRuntime( 1335):        at com.android.internal.os.ZygoteInit
> $MethodAndA
> rgsCaller.run(ZygoteInit.java:858)
> E/AndroidRuntime( 1335):        at
> com.android.internal.os.ZygoteInit.main(Zygot
> eInit.java:616)
> E/AndroidRuntime( 1335):        at
> dalvik.system.NativeStart.main(Native Method)
>
> E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> android.widget
> .EditText
> E/AndroidRuntime( 1335):        at
> com.myApp.DashBoard.onCreate(DashBoard.java
> :70)
> E/AndroidRuntime( 1335):        at
> android.app.Instrumentation.callActivityOnCre
> ate(Instrumentation.java:1065)
> E/AndroidRuntime( 1335):        at
> android.app.ActivityThread.performLaunchActiv
> ity(ActivityThread.java:2745)
> 
>
> I am not using the removed EditText in the code even then it is
> throwing this error...

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[android-developers] Re: java.lang.ClassCastException: android.widget.EditText

[Spica]

This is line 70;
 Button b = (Button) findViewById(R.id.btnReferesh);

On Aug 20, 4:39 pm, RichardC  wrote:
> E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> android.widget
> .EditText
> E/AndroidRuntime( 1335):        at
> com.myApp.DashBoard.onCreate(DashBoard.java
> :70)
>
> What's at line 70 in DashBoard.java?
>
> On Aug 20, 5:16 pm, Spica  wrote:
>
>
>
>
>
>
>
> > I removed EditText from my layout and after that i started getting
> > "Force close" error. My app is not starting at all. Here is the trace
> > i captured with logcat;
>
> > =
> > E/AndroidRuntime( 1335): FATAL EXCEPTION: main
> > E/AndroidRuntime( 1335): java.lang.RuntimeException: Unable to start
> > activity Co
> > mponentInfo{com.myApp/com.myApp.DashBoard}:
> > java.lang.ClassCastException: android.widget.EditText
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.performLaunchActiv
> > ity(ActivityThread.java:2781)
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.handleLaunchActivi
> > ty(ActivityThread.java:2797)
> > E/AndroidRuntime( 1335):        at android.app.ActivityThread.access
> > $2300(Activi
> > tyThread.java:135)
> > E/AndroidRuntime( 1335):        at android.app.ActivityThread
> > $H.handleMessage(Ac
> > tivityThread.java:2132)
> > E/AndroidRuntime( 1335):        at
> > android.os.Handler.dispatchMessage(Handler.ja
> > va:99)
> > E/AndroidRuntime( 1335):        at android.os.Looper.loop(Looper.java:
> > 143)
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.main(ActivityThrea
> > d.java:4914)
> > E/AndroidRuntime( 1335):        at
> > java.lang.reflect.Method.invokeNative(Native
> > Method)
> > E/AndroidRuntime( 1335):        at
> > java.lang.reflect.Method.invoke(Method.java:5
> > 21)
> > E/AndroidRuntime( 1335):        at com.android.internal.os.ZygoteInit
> > $MethodAndA
> > rgsCaller.run(ZygoteInit.java:858)
> > E/AndroidRuntime( 1335):        at
> > com.android.internal.os.ZygoteInit.main(Zygot
> > eInit.java:616)
> > E/AndroidRuntime( 1335):        at
> > dalvik.system.NativeStart.main(Native Method)
>
> > E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> > android.widget
> > .EditText
> > E/AndroidRuntime( 1335):        at
> > com.myApp.DashBoard.onCreate(DashBoard.java
> > :70)
> > E/AndroidRuntime( 1335):        at
> > android.app.Instrumentation.callActivityOnCre
> > ate(Instrumentation.java:1065)
> > E/AndroidRuntime( 1335):        at
> > android.app.ActivityThread.performLaunchActiv
> > ity(ActivityThread.java:2745)
> > 
>
> > I am not using the removed EditText in the code even then it is
> > throwing this error...

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Re: [android-developers] Updating UI from external

[Ash]

Wonderful. Thanks a lot for your prompt and detailed replies. I appreciate 
your help. I seem to have achieved what I was after (for now initial testing 
has given me enough confidence to move forward). 

Thanks again Mark. 

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[android-developers] To widget or not to widget

[bob]

Let's say you are making an interface.

Do you think it's easier to use widgets or just draw your own stuff?

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[android-developers] Re: java.lang.ClassCastException: android.widget.EditText

[RichardC]

4 steps:

(1) break line 70 into two:
View myFoundView = findViewById(R.id.btnReferesh);
Button b = (Button)myFoundView;

(2) Put a breakpoint on the 1st line above

(3) Step over the 1st line and then inspect myFoundView;

(4) Workout why whatever is in myFoundView cannot be cast to a Button


On Aug 20, 9:51 pm, Spica  wrote:
> This is line 70;
>  Button b = (Button) findViewById(R.id.btnReferesh);
>
> On Aug 20, 4:39 pm, RichardC  wrote:
>
>
>
>
>
>
>
> > E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> > android.widget
> > .EditText
> > E/AndroidRuntime( 1335):        at
> > com.myApp.DashBoard.onCreate(DashBoard.java
> > :70)
>
> > What's at line 70 in DashBoard.java?
>
> > On Aug 20, 5:16 pm, Spica  wrote:
>
> > > I removed EditText from my layout and after that i started getting
> > > "Force close" error. My app is not starting at all. Here is the trace
> > > i captured with logcat;
>
> > > =
> > > E/AndroidRuntime( 1335): FATAL EXCEPTION: main
> > > E/AndroidRuntime( 1335): java.lang.RuntimeException: Unable to start
> > > activity Co
> > > mponentInfo{com.myApp/com.myApp.DashBoard}:
> > > java.lang.ClassCastException: android.widget.EditText
> > > E/AndroidRuntime( 1335):        at
> > > android.app.ActivityThread.performLaunchActiv
> > > ity(ActivityThread.java:2781)
> > > E/AndroidRuntime( 1335):        at
> > > android.app.ActivityThread.handleLaunchActivi
> > > ty(ActivityThread.java:2797)
> > > E/AndroidRuntime( 1335):        at android.app.ActivityThread.access
> > > $2300(Activi
> > > tyThread.java:135)
> > > E/AndroidRuntime( 1335):        at android.app.ActivityThread
> > > $H.handleMessage(Ac
> > > tivityThread.java:2132)
> > > E/AndroidRuntime( 1335):        at
> > > android.os.Handler.dispatchMessage(Handler.ja
> > > va:99)
> > > E/AndroidRuntime( 1335):        at android.os.Looper.loop(Looper.java:
> > > 143)
> > > E/AndroidRuntime( 1335):        at
> > > android.app.ActivityThread.main(ActivityThrea
> > > d.java:4914)
> > > E/AndroidRuntime( 1335):        at
> > > java.lang.reflect.Method.invokeNative(Native
> > > Method)
> > > E/AndroidRuntime( 1335):        at
> > > java.lang.reflect.Method.invoke(Method.java:5
> > > 21)
> > > E/AndroidRuntime( 1335):        at com.android.internal.os.ZygoteInit
> > > $MethodAndA
> > > rgsCaller.run(ZygoteInit.java:858)
> > > E/AndroidRuntime( 1335):        at
> > > com.android.internal.os.ZygoteInit.main(Zygot
> > > eInit.java:616)
> > > E/AndroidRuntime( 1335):        at
> > > dalvik.system.NativeStart.main(Native Method)
>
> > > E/AndroidRuntime( 1335): Caused by: java.lang.ClassCastException:
> > > android.widget
> > > .EditText
> > > E/AndroidRuntime( 1335):        at
> > > com.myApp.DashBoard.onCreate(DashBoard.java
> > > :70)
> > > E/AndroidRuntime( 1335):        at
> > > android.app.Instrumentation.callActivityOnCre
> > > ate(Instrumentation.java:1065)
> > > E/AndroidRuntime( 1335):        at
> > > android.app.ActivityThread.performLaunchActiv
> > > ity(ActivityThread.java:2745)
> > > 
>
> > > I am not using the removed EditText in the code even then it is
> > > throwing this error...

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[android-developers] turn off screen lock

[hectordu...@yahoo.com]

hi guys,
i would like to turn off  programmatically the screen lock
function ...
how can i do it ?

thanks in advance

Hector

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Re: [android-developers] To widget or not to widget

[Michael Banzon]

I'd say widgets...

On Sat, Aug 20, 2011 at 11:26 PM, bob  wrote:
> Let's say you are making an interface.
>
> Do you think it's easier to use widgets or just draw your own stuff?
>
> --
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>



-- 
Michael Banzon
http://michaelbanzon.com/

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[android-developers] java.lang.NoClassDefFoundError: android.os.AsyncTask

[b0b]

I have an app on the Market that works well for most users but for a
few of them and very rarely, I get crash reports with exception:

java.lang.NoClassDefFoundError: android.os.AsyncTask


It happens very early in app init when the first AsyncTask is created
on different versions of Android.
These crash reports are totally weird, as if the dalvik classloader
was broken or going berserk.

Does anyone have seen such crash reports in its own apps ?

At this point, I tend to ignore them as there is nothing I can do, but
I'd still like to have an explanation for this mystery.

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Re: [android-developers] Re: java.lang.ClassCastException: android.widget.EditText

[Nick Risaro]

Hey, RichardC, this problem is solved, check the third mail of the thread.

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Re: [android-developers] turn off screen lock

[Nick Risaro]

On Sat, Aug 20, 2011 at 7:29 PM, hectordu...@yahoo.com <
hectordu...@yahoo.com> wrote:

> hi guys,
> i would like to turn off  programmatically the screen lock
> function ...
> how can i do it ?
>

3 easy steps.

   1. Go to google.com
   2. Type: android turn off screen
   3. Implement the functionality you want



> thanks in advance
>
> Hector
>
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[android-developers] Re: ALPHA_8 bitmaps and getPixel.

[Matyas]

Noone?
On Aug 11, 11:21 am, Matyas  wrote:
> Hi,
>
> The following is giving me a serious headache.
>
> Bitmap mTestMap = Bitmap.createBitmap(20, 20, Config.ALPHA_8);
> mTestMap.setPixel(10,10, Color.WHITE);
> Log.d("Test", "HasAlpha=" + mTestMap.hasAlpha() + ", IsMutable=" +
> mTestMap.isMutable() +
>                 ", PixelColor=" + mTestMap.getPixel(10,10));
>
> The output is:
> 08-11 10:56:23.490: DEBUG/Test(11211): HasAlpha=true, IsMutable=true,
> PixelColor=0
>
> The question is, why does getPixel return 0? And if it was meant to
> return 0, what is the correct way to retrieve pixel color information
> (or alpha channel information) from an ALPHA_8 bitmap? I am trying to
> use this kind of bitmap for hit-testing in a game. RGB_565 works fine,
> but I am trying to reduce the memory.

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[android-developers] Listview with image

[bob]

I have an existing Listview of news article titles, and I need to now
have an image to the left of the title.  Anyone know a real easy way
to do this?

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Re: [android-developers] java.lang.NoClassDefFoundError: android.os.AsyncTask

[TreKing]

On Sat, Aug 20, 2011 at 6:02 PM, b0b  wrote:

> Does anyone have seen such crash reports in its own apps ?


I've gotten a few randoms that seem impossible like this. My current theory
is a bad install that f***s up the app. Anytime I've gotten emails about
"just updated and it's not working", an uninstall -> re-install nearly
always fixes it.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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Re: [android-developers] Listview with image

[TreKing]

On Sat, Aug 20, 2011 at 7:59 PM, bob  wrote:

> I have an existing Listview of news article titles, and I need to now have
> an image to the left of the title.  Anyone know a real easy way to do this?
>

Stick an Image to the left of the title in your layout?

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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Re: [android-developers] Listview with image

[Nick Risaro]

On Sat, Aug 20, 2011 at 10:03 PM, TreKing  wrote:

> Stick an Image to the left of the title in your layout?


With glue?

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[android-developers] Re: turn off screen lock

[lbendlin]

you cannot do that if there is one or more security admins on the device 
(mostly affects people who use the phone to access their corporate email).

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[android-developers] Re: java.lang.NoClassDefFoundError: android.os.AsyncTask

[Peter Sinnott]

On Aug 21, 12:02 am, b0b  wrote:
> I have an app on the Market that works well for most users but for a
> few of them and very rarely, I get crash reports with exception:
>
> java.lang.NoClassDefFoundError: android.os.AsyncTask
>

AsyncTask was introduced in api level 3. Any chance your apps minimum
sdk level is below that?
Probably not but sometime it is the obvious things that cause the most
trouble.

It would nice if the developer console error page had the Android
version and device in it.

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[android-developers] Re: ListView items

[Peter Sinnott]

Sure it is.

The adaptor has all the items. The view has the visible items.
If you want to do something with the visible items you can use the
view.
If you want to do something with all the items you can use the
adaptor.
If the adaptor doesn't have enough information to know the state of
the checkbox you may have problems but you will when the list scrolls
anyway.


On Aug 20, 12:57 pm, Goutom  wrote:
> Hi Treking
> This is not the answer.
>
> On Fri, Aug 19, 2011 at 5:45 PM, TreKing  wrote:
> > On Fri, Aug 19, 2011 at 7:41 PM, Goutom  wrote:
>
> >> Any help?
>
> > Use the adapter that backs the listview.
>
> > -
> > TreKing  - Chicago
> > transit tracking app for Android-powered devices
>
> >  --
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Re: [android-developers] Re: java.lang.NoClassDefFoundError: android.os.AsyncTask

[TreKing]

On Sat, Aug 20, 2011 at 8:19 PM, Peter Sinnott  wrote:

> It would nice if the developer console error page had the Android version
> and device in it.
>

Technically it does, but the information is presented so horribly it's
impossible to determine which app version was running on which device when
the crash is reported.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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[android-developers] Re: java.lang.NoClassDefFoundError: android.os.AsyncTask

[Peter Sinnott]

I have 23 others , 2 nexus ones and 3 droids. There are I think half a
dozen Android phones called droid and that is an awful lot of phones
tagged other. From a practical point of view I wouldn't consider the
device to be reported. The error reporting was nice when it arrived
but after a couple of months you get over it and realise how much
better it could easily be.

On Aug 21, 2:30 am, TreKing  wrote:
> On Sat, Aug 20, 2011 at 8:19 PM, Peter Sinnott  wrote:
> > It would nice if the developer console error page had the Android version
> > and device in it.
>
> Technically it does, but the information is presented so horribly it's
> impossible to determine which app version was running on which device when
> the crash is reported.
>
> -
> TreKing  - Chicago
> transit tracking app for Android-powered devices

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Re: [android-developers] x and y

[Kristopher Micinski]

http://developer.android.com/reference/android/view/MotionEvent.html

public boolean onGenericMotionEvent (MotionEvent event)

Since: API Level 12

(From View.)

Kris

On Sat, Aug 20, 2011 at 2:22 PM, bob  wrote:
> Let's say you have an image, and you want to know the x and y of the
> user's click.  Anyone know what widget to use?
>
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Re: [android-developers] Re: java.lang.NoClassDefFoundError: android.os.AsyncTask

[TreKing]

On Sat, Aug 20, 2011 at 8:40 PM, Peter Sinnott  wrote:

> I have 23 others , 2 nexus ones and 3 droids. There are I think half
> a dozen Android phones called droid and that is an awful lot of
> phones tagged other. From a practical point of view I wouldn't consider
> the device to be reported.
>

Hence, "technically" ... ;-)

The error reporting was nice when it arrived but after a couple of months
> you get over it and realise how much better it could easily be.


I hear ya - ACRA FTW.

-
TreKing  - Chicago
transit tracking app for Android-powered devices

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Re: [android-developers] Listview with image

[s.rawat]

Apart from glue a bit not so easy way would be to create an array adapter
and extends the listview activity with it .Inside the adapater you can add
an image, description ,title to it.Try if it helps or I will paste the code.
Rgds,
Saurabh
"..pain is temporary.quitting lasts forever.."



On Sun, Aug 21, 2011 at 6:45 AM, Nick Risaro  wrote:

> On Sat, Aug 20, 2011 at 10:03 PM, TreKing  wrote:
>
>> Stick an Image to the left of the title in your layout?
>
>
> With glue?
>
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[android-developers] getOrientation() madness

[Greg Donald]

Using API version 7, this code produces the exact opposite results on
my Evo versus my Galaxy Tab:

switch( getWindowManager().getDefaultDisplay().getOrientation() )
{
  case 0:
display_mode = MyApplication.HORIZONTAL;
break;

  case 1:
display_mode = MyApplication.VERTICAL;
break;

  case 2:
display_mode = MyApplication.HORIZONTAL;
break;

  case 3:
display_mode = MyApplication.VERTICAL;
break;
}

log( "display_mode: " + ( display_mode == MyApplication.HORIZONTAL
? "HORIZONTAL" : "VERTICAL" ) );


I switched to API version 13 to see if the problem was fixed in the
future, and it also tells lies from one device to another.


I have dynamic full screen graphics that cannot be skewed.  I'm having
to write code to compensate for the Galaxy Tab's 48 pixel bar at the
bottom.  getWindowManager().getDefaultDisplay().getHeight() says it's
800 but it's really only 752 due to the bar.  Now I find I cannot even
count on the display orientation being accurate to code up a fix for
the initial problem.


So how do I contend with this mess?

What other devices can I count on to lie about their display and orientation?



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[android-developers] Re: getOrientation() madness

[Adam Ratana]

This isn't orientation, though, this is rotation.  So your Tab in landscape 
is Surface.ROTATION_0, while your phone in portrait is also going to 
correspond to Surface.ROTATION_0.  It's not the API that is lying to you.

On Sunday, August 21, 2011 1:25:12 AM UTC-4, Greg Donald wrote:
>
> Using API version 7, this code produces the exact opposite results on
> my Evo versus my Galaxy Tab:
>
> switch( getWindowManager().getDefaultDisplay().getOrientation() )
> {
>   case 0:
> display_mode = MyApplication.HORIZONTAL;
> break;
>
>   case 1:
> display_mode = MyApplication.VERTICAL;
> break;
>
>   case 2:
> display_mode = MyApplication.HORIZONTAL;
> break;
>
>   case 3:
> display_mode = MyApplication.VERTICAL;
> break;
> }
>
> log( "display_mode: " + ( display_mode == MyApplication.HORIZONTAL
> ? "HORIZONTAL" : "VERTICAL" ) );
>
>
> I switched to API version 13 to see if the problem was fixed in the
> future, and it also tells lies from one device to another.
>
>
> I have dynamic full screen graphics that cannot be skewed.  I'm having
> to write code to compensate for the Galaxy Tab's 48 pixel bar at the
> bottom.  getWindowManager().getDefaultDisplay().getHeight() says it's
> 800 but it's really only 752 due to the bar.  Now I find I cannot even
> count on the display orientation being accurate to code up a fix for
> the initial problem.
>
>
> So how do I contend with this mess?
>
> What other devices can I count on to lie about their display and 
> orientation?
>
> -- 
> Greg Donald
>
>

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[android-developers] Re: java.lang.NoClassDefFoundError: android.os.AsyncTask

[b0b]

On Aug 21, 3:02 am, TreKing  wrote:
> On Sat, Aug 20, 2011 at 6:02 PM, b0b  wrote:
> > Does anyone have seen such crash reports in its own apps ?
>
> I've gotten a few randoms that seem impossible like this. My current theory
> is a bad install that f***s up the app. Anytime I've gotten emails about
> "just updated and it's not working", an uninstall -> re-install nearly
> always fixes it.
>


I'm also starting to think it is due to a broken install of the app.
In any case not API level related since min API is 7.
Using ACRA btw, which is invaluable for its purpose.

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[android-developers] Re: x and y

[bob]

I'm developing for 2.1, so that won't work?

On Aug 20, 8:45 pm, Kristopher Micinski 
wrote:
> http://developer.android.com/reference/android/view/MotionEvent.html
>
> public boolean onGenericMotionEvent (MotionEvent event)
>
> Since: API Level 12
>
> (From View.)
>
> Kris
>
>
>
>
>
>
>
> On Sat, Aug 20, 2011 at 2:22 PM, bob  wrote:
> > Let's say you have an image, and you want to know the x and y of the
> > user's click.  Anyone know what widget to use?
>
> > --
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Re: [android-developers] Re: getOrientation() madness

[Greg Donald]

On Sun, Aug 21, 2011 at 1:12 AM, Adam Ratana  wrote:
>
> This isn't orientation, though, this is rotation.

I wonder why they named the method getOrientation() then?


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