llPointerException when trying to use the Location. If so, that is
because there is no fix, perhaps because you haven't done anything in
code to attempt to get GPS to start acquiring fixes, such as call
requestLocationUpdates().
If that is not the exception you are getting, then please pos
Alan Gauld wrote:
> "Mark Murphy" wrote
>
>> There are several books on the market for Android device users. With
>> luck, one is available in EPUB.
>
> Maybe I'm searching with the wrong keywords but I could only find one
> user focused book on Amazon.
hing ...
There are several books on the market for Android device users. With
luck, one is available in EPUB.
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_The Busy Coder's Guide to *Advanced* Android Development_
Version 1.4 Available!
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> I want to record the start and end times of all the applications that were
> launched and killed. Is there any event i can listen for.
No.
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> In Android Phones there's a provision for J2ME applications too so dont
> worry.
It is possible that some phones ship with a J2ME compatibility layer, but
I am not aware of any. Android itself does not have a J2ME compatibility
layer built into the system.
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h-cut ellipsizing yourself (e.g., any message over 16
characters gets truncated at the nearest non-alphanumeric value and ...
appended to the end) if you wish.
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same.
If you are referring to a BroadcastReceiver registered through
registerReceiver() (e.g., from an Activity), then you should be choosing
your scope more by data visibility more than by GC rules.
Bear in mind that broadcast Intents typically cross process boundaries,
so the cost of the broadc
ssue.
I am not aware of a way for an application to delete itself. You can
remove yourself from the launcher by disabling that activity, but you're
still installed.
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_Beginning Android 2_ from Apress Now
s to my
> widget or to some certain view from widget (I found only
> setOnClickPendingIntent method from RemoteViews obj. which allows to
> start some activity, but this is not what I'm looking for), something
> like 'onClickListener'?
setOnClickPendingIntent is exactly
n you will be taking up a *lot* of extra on-board flash
space, which will not make you popular. And, the user will still need to
go through the screens to review and accept that second installation,
and you will still have two entries in the user's "Manage Applications"
Kevin Brooks wrote:
> I would also Suggest picking up Mark Murphy's book on Android Development.
Mark Murphy likes that idea! Thanks! :-)
To be fair, though, here's a list of all available English-language
Android books that I know of:
http://wiki.andmob.org/books
Rolling back to
read an XML file located in
the app's files area, but implementing that is up to you.
> I think there's the same read-only restriction to res/layout as to res/
> raw, isn't it ?
Yes. Everything in res/ is read-only at runtime.
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this way. You can only use
LayoutInflater via res/layout/ resources.
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getLastKnownLocation() will start working.
Until this point, though, the location provider may not be on and
collecting data.
Here is a sample application demonstrating obtaining your location via GPS:
http://github.com/commonsguy/cw-android/tree/master/Service/WeatherPlus/
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g., res/raw/) are
read-only. Files that you write to are read-write.
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aa.notifyDataSetChanged();
myEditText.setText("");
return true;
}
return false;
}
};
then call myEditText.setOnKeyListener(onKey) where needed. But that's
just m
s this the only scope of ItemizedOverlay? Can't be, what's the reason
> then despite of having events on the items? Such a boring class if it
> is so...
Here is a sample project from one of my books that demonstrates having
multiple icons in a single overlay:
http://github.com/commonsgu
tView mtv = new myTextView(this);
> mtv.setText("this is my text view");
> mtv.set
Yes, though I would never recommend this technique.
You are hopefully setting up your TextView properties in layout XML. If
you have several TextViews sharing common properties, you can address
t
runtime?
If it compiles from source with JDK 5 or JDK 6, it should work without
issue on Android when that code is cross-compiled into Dalvik VM
bytecodes by the rest of the build chain. Hence, the only warnings you
will typically see come from the JDK javac compiler.
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ous one, because they come from some of my books.
If by "differentiate several markers" you just want to distinguish their
taps, the first project demonstrates that.
If by "differentiate several markers" you want different icons per
marker, the ILuvNooYawk (4th) project demon
USB hosts, and so would not be
able to work with an external USB keyboard. Sorry!
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.io to use
standard JavaSE-style I/O.
Or:
Step #2: There are supposed to be some JavaME compatibility layers
available for Android, but I do not know their names or sites off the
top of my head.
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Android App De
Column);
> //int row = qCursor.getInt(idColumn);
> qTV.setText(qString);
> }
>
>
>
>
> }
>
> }
>
>
>
> When I try to run this in the emulator, it tells me
();
> }
> }
>
> It works great except some on the rows in the list have a black
> background instead of the transparent. Can anybody help? Thanks.
Unless there is something behind the ListView, transparent *is* black,
because it is showing the overall activity bla
ayAdapter). When you bind new data to the row, you know the old data
is no longer on the screen.
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's Google Calendar, there's a Google Web
service API for that:
http://code.google.com/apis/calendar/
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.mp4
and see what happens. If this works much more quickly for you, then
there's something afoot with the Web server you're downloading from.
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You recei
B?
I wouldn't expect it to. But, since I'm not an Eclipse user and don't
set that flag, I'm certainly not an expert on the subject. :-)
Some other things to consider:
-- You're on WiFi, right?
-- Does the Browser application behave similarly sluggishly?
-- Have you
I'm still not clear on how
> the response handler would fit my needs. From the example in the
> tutorial it seems like it returns a byte array, but that's not
> practical in my situation as the entity content would be ~6.5MB,
> better to write that to my file as I receive it.
tent would be ~6.5MB,
> better to write that to my file as I receive it.
Agreed. Still, something seems strange.
Let me know if droppin' the debuggah helps.
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oid-application-with-a-database
http://stackoverflow.com/questions/1894984/use-sqlite-database-from-android-app-resources
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of all system resources
httpclient.getConnectionManager().shutdown();
}
}
You'd need to create a BinaryResponseHandler class that gave you a
byte[] of data. I did this once for a consulting client -- it was an
extremely short class IIRC. Or, skip the ResponseHandler pattern, ca
'm looking for the method
>> that is called somewhere between onCreate and onResume that tells the
>> program which xml documents to use.
First, whatever it is, it is not called between onCreate() and
onResume(), since you can use resources in onCreate().
Second, whatever it
critical
> information.
Here are some sample database projects from some books written by some
balding guy:
http://github.com/commonsguy/cw-android/tree/master/Database/Constants/
http://github.com/commonsguy/cw-andtutorials/tree/master/11-Database/
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"adb shell cd /data/app");
> $filename = "abc.txt";
> $size_of_file = -s $filename;
> print "The file Size is ". $size_of_file." Bytes"."\n";*
>
> but in o/p i am getting blank...
>
> The file Size is Bytes
> can anybody suggest
e code that uses it. Use
Google Code Search and search on:
package:android ToneGenerator
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ere for, say, an ascending sort of the "modified" column? Thanks!
You put in "modified". Or "modified ASC", if you want, but ascending
order is the default, IIRC.
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Android Training in
application. I have imported
> java.util.* and java.text.DateFormat, but I get an error that, for
> example:
> date=new Date();
> cannot find variable date
>
> Does android not like java classes? Thanks.
Unless you have defined Date date elsewhere, that should be:
Date date=new Da
Ali Asghar wrote:
> Is there any way that i can access the email accounts that are saved
> in the default email client of android.
The email applications are not part of the official SDK.
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Andro
ly, since it's a user feature, not a
class or method or programming utility. So, for example, it is
documented in a card that accompanies the Nexus One.
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e a way to create a 1.1 AVD -- I don't have an
option to install components for API 2.
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Service(serviceIntent, mConnection, Context.BIND_AUTO_CREATE);
You can just use new Intent(this), where this is your Activity. There is
no value here in using getApplicationContext().
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Warescription: Three Android Books,
skink wrote:
>
> On Mar 13, 2:18 pm, Mark Murphy wrote:
>> Far from dumb -- this is a fine upstanding technique. RelativeLayout
>> supports Z-axis ordering just for this sort of purpose.
>>
>
> isn't FrameLayout better for that?
>
> you just put in o
where they define the
attributes that wind up being used in the app: namespace.
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. I'd
> imagine you would want to be careful not to obscure the Google logo
> and zoom controls..
Far from dumb -- this is a fine upstanding technique. RelativeLayout
supports Z-axis ordering just for this sort of purpose.
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quently" is
a far cry from what your current implementation was trying to do.
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Bundle extras) {}
> };
>
> Log.d("TAG","gets here");
>
> lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0,
> (float) 0.001, locationListener);
You cannot do that here. If you look at your logcat, y
int.
> I guess I could do some kind of ugly lat/lon compare in a list..
>
> If I have both of those onTaps ... only the first one is ever called.
Make sure the onTap(GeoPoint p, MapView mapView) chains to the
superclass -- that may solve your problem of getting the second one called
) in your Activity to define the menu
Step #3: Implement onContextItemSelected() in your Activity to get
control on a menu choice
http://github.com/commonsguy/cw-android/tree/master/Database/Constants/
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An
BobG wrote:
> Is there a log file on the phone? Someone tell me how to look at it?
adb logcat, DDMS, or the DDMS perspective in Eclipse, with the device
connected to the computer via the USB cable.
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Andr
ation tagged.
You can certainly have different Drawables per pin at runtime:
http://github.com/commonsguy/cw-advandroid/tree/master/Maps/ILuvNooYawk/
I haven't tried creating a custom Drawable, rendered from a Canvas or
something, so I don't know much about that aspect.
--
Mark Mur
oidManifest.xml tab in the eclipse editor to see the source code
> directly). Then edit the file as follows:
> "
>
> But it makes no difference. I'm still getting the same error.
>
> Hm???
Use adb logcat, DDMS, or the DDMS perspective in Eclipse to learn what
th
ter. And the user will
have to have both applications installed (the one with your first
activity and the one with the second activity).
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_The Busy Coder's Guide to *Advanced* Android Development_
Version
listed in there. For example:
http://github.com/commonsguy/cw-andtutorials/blob/master/12-Activities/LunchList/AndroidManifest.xml
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Version 1.3 Available!
-
on (e.g., android-2.1).
Also, the Notepad tutorial has multiple activities:
http://developer.android.com/resources/tutorials/notepad/index.html
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You recei
get-the-keys-from-contentvalues
You even got two answers there.
Please give the questions a little time in one forum before
cross-posting elsewhere.
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_The Busy Coder's Guide to Android Development_ Version 3
eing reborn. Hope this
> helps someone?
Your PC probably sees the phone as a USB device and tries booting from
it, just like it might boot off of a USB thumb drive or external hard drive.
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Android App
ACK
button destroys an activity).
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and
drag-and-drop.
The rules of thumb I tell my students in class are:
-- If it is small and needs to stay reasonably private, use app-local
storage
-- If it is small or large but can be public, use the SD card
-- If it is large and needs to stay reasonably private, you're screwed :-)
--
s that can be "public", yes.
> 2) Is Context.openFileOutput() the only guaranteed place where I can
> store files?
Yes, though I tend to prefer to use getFilesDir() (returns a File object
pointing to the root of your app-local file store).
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n to
anyone new to Java. IIRC, you said your background was C++, not Java,
which is why I make the recommendation here.
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Version 1.3 Availabl
ce classes and methods available in the
Android SDK.
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drawn in chicken blood, to
get Eclipse to do that. :-) Outside of Eclipse, using Ant, it's about a
15 second operation once you have the pattern in hand.
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Subjective Effect wrote:
> How do I do this?
Through the Control Panel. Search your favorite search engine for how to
modify your PATH environment variable.
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g widget, not a full Web browser.
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-do-i-calculate-distance-between-two-latitude-longitude-points
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or figuring out where we're approaching things
differently. If it doesn't work, your API key is messed up for some reason.
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map to stay in gridline mode:
-- The apiKey is not actually in there properly (hint: if it has colons,
that's not the API key)
-- The emulator or device does not have Internet access, such as lacking
the INTERNET permission in the project
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usy loop.
Furthermore, a tight busy loop like that is going to chew up the CPU
enough that it will make anything else difficult to run.
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ed.
Somebody asked a closely related question not that long ago on
StackOverflow:
http://stackoverflow.com/questions/2307655/align-layout-to-the-right-in-a-listview-row
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_Beginning Android_ from Apress Now Ava
André wrote:
> Hello,
>
> I have a EditText window that fills up most of the screen. But when I
> start typing in it always starts on the left side in the middle. I
> want it to start top left corner. How do I do this?
Set the gravity of the EditText widget to left|top.
--
mServices/Alarm/
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actly above the marker" may be difficult, as I am not sure
how you can find out the pixel location of the marker.
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gt; To unsubscribe from this group, send email to
>> android-beginners+unsubscr...@googlegroups.com
>> For more options, visit this group at
>> http://groups.google.com/group/android-beginners?hl=en
>>
>
> --
> You received this message because you are subscribe
et
control when they are being uninstalled.
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> On Feb 8, 4:09 pm, "Mark Murphy" wrote:
>> The documentation is included in the SDK for offline reading.
> ==
> Thanks for the response Mark, but I cant see anything about
> downloading documentation anywhere on th
> Is there a downloadable file with the android java subset classes and
> methods that an old c programmer could study offline? The reference
> search box at android developers is giving me a lot of 'not founds'.
The documentation is included in the SDK for offline reading.
f you can determine where the differences are.
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> I wonder if the Android has some api that reads text and I can hear
> through
> headphones.
Look at the TextToSpeech class.
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f shit from
> happening, who do I talk to?
You might consider just switching to use StackOverflow:
http://android-developers.blogspot.com/2009/12/hello-stack-overflow.html
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Android 2.0 Programmi
> Where can one find a pie chart showing how many Android users are
> running (say): 1.5 vs 1.6 vs 2.x ?
http://developer.android.com/intl/fr/resources/dashboard/platform-versions.html
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ut that seems to be
> the spacing between the actual content of a View and the boundaries of
> the View itself...
Use margins instead (android:layout_marginTop, etc.). Those provide
whitespace outside the boundaries of the View.
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An
> Or this link:
> http://www.ebookee.com/Google-Android-Ebooks-Pack_387146.html
Please be advised that these books are being distributed in violation of
their copyright.
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n (e.g., later child
elements in the layout XML) will appear above earlier children.
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ill increase to 10 or more (and there will be some backgroud
> logic).
The number of activity classes in your application should not impact how
quickly they start up.
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ty(intent);
>
> It works fine, but in this case, every time I want to show one
> activity from another an new instance of activity will be created.
> It's not a very good situation :(
Why not? That's the way most Android applications work.
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http
Intents are converted into raw memory buffers (think byte arrays)
for passing across process boundaries. You cannot do that safely with an
ordinary Object. You must implement some sort of serialization to do that,
and Android elected to create the Parcelable system for that role.
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yout_width="wrap_content"
> android:layout_height="wrap_content"
> />
>
>
> tone
You say you want a "progress wheel with text to its right", but you are
using a vertical LinearLayo
issues?
Questions regarding the NDK need to go to a list that actually pertains to
the NDK, such as the [android-ndk] Google Group:
http://groups.google.com/group/android-ndk
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; Intent { action=android.intent.action.PICK type=v
> nd.example.greeting/vnd.example.greeting-text }
You do not have an activity that knows how to handle ACTION_PICK of
vnd.example.greeting/vnd.example.greeting-text. Perhaps the activity is
not properly registered in the AndroidManifest.xml
vaibhav mital wrote:
> so how can we stop or control any other application from running?
You can't.
> Is there any way to control other applications?
No. That would be a security hole.
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Android
vaibhav mital wrote:
> what are the services and processes which start running in thebackground
> automatically when we start any activity?
By default, there are no "services and processes which start running in
thebackground [sic] automatically when we start any activity".
--
uld start my app which schedules an
> alarm, and then kill off any related app / service / receiver processes.
> the alarm should still be delivered.
>
> is this correct?
Generally. If the device is rebooted, the alarm vanishes.
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equirements.html
You also might try working outside of Eclipse at first. Some error
messages that adb spits out might mean something to use, but ADT simply
treats it as a generic failure or ignores the messages.
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dolly wrote:
> Hi,
>
> I am trying to display a webpage as part of a widget, but I am not
> able to do so since Remote views do not support adding webview to it.
> Can this be done in any other way ?
Not really, sorry.
--
Mark Murphy (a Commons Guy)
http://commonsware.com | htt
o I don't have the delay?
Delay the extra work you have in onCreate() to a later point. For example,
use Handler#postDelayed() to have that work be done after 200ms, to allow
Android to draw your layout.
--
Mark Murphy (a Commons Guy)
http://commonsware.com
Android App Developer Books:
> Is it posible to define a new font set in android?
You can embed TrueType fonts into your application and use them, via the
Typeface class. However, you cannot define new fonts for use by all
applications.
--
Mark Murphy (a Commons Guy)
http://commonsware.com
Android App Developer Bo
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