Android :: AsyncTaskPool - Tutorial

Nov 11, 2009

Android has a limit to rum at MAX 20 concurrent AsyncTask. To handle this limit I created a AsyncTaskPool.java utility. Its not a pool in true sense but a kind of scheduler.

CODE:..................

Android :: AsyncTaskPool - Tutorial


Android :: Tutorial Not Working

Nov 13, 2010

I'm on Mac OS X Leopard and installed the ADT plugin into Eclipse Galileo. I followed all these steps to get started:

http://developer.android.com/sdk/index.html

My SDK version is 2.2 API 8 revision 2 and I just used the Hello World tutorial found here:

[url]

When I first created the Android application, I saw this error in the Eclipse console:

[2010-11-13 18:20:43 - HelloAndroid] ERROR: Unable to open class file / Users/mydirectory/Documents/workspace/HelloAndroid/gen/com/example/ helloandroid/R.java: No such file or directory

I commented out this line to fill in the few lines from the tutorial:

setContentView(R.layout.main);

When I ran the app, it launched my emulator but all I saw was a vertical screen on the left that said "ANDROID" and phone buttons on the right. I did not see the "Hello, Android" text from the tutorial.

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Android :: CheckedTextView Tutorial

Apr 17, 2010

I need to display contents of a list of objects. Capture the selected items and later process it. I have been trying to find a tutorial on net but in vain. Could some one please advise me when can I find a tutorial. I know how to display a list but I want the CheckedTextView option.

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Android :: Notepadv3 Tutorial

Mar 5, 2010

I was working through the Notepad tutorial... http://developer.android.com/guide/tutorials/notepad/index.html ...and I seem to either have a misunderstanding of what is supposed to be happening, or the code is not working.

Below are two snippets of code from the tutorial to illustrate my questions/concerns:

It looks like this is the "menu" that is brought up when you have no items selected and you press the Menu key...

CODE:...........

This is the behavior that I expected and saw.

However, when I have one of the notes selected, I would expect this code snippet to run...

CODE:.............

But it doesn't. I can never get the "delete" option to show up in the tutorial.

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Android :: BetterCut Tutorial

Apr 5, 2010

I've never used bettercut and am after a tutorial. I have this homescreen. want to change the GMail icon to the same green as everything else.

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Android :: Trying To Get Hello Tutorial To Work

Nov 15, 2010

I'm on Mac OS X Leopard and installed the ADT plugin into Eclipse Galileo. I followed all these steps to get started:

http://developer.android.com/sdk/index.html

My SDK version is 2.2 API 8 revision 2 and I just used the Hello World tutorial found here:

[url]

When I first created the Android application, I saw this error in the Eclipse console:

[2010-11-13 18:20:43 - HelloAndroid] ERROR: Unable to open class file / Users/mydirectory/Documents/workspace/HelloAndroid/gen/com/example/ helloandroid/R.java: No such file or directory

I commented out this line to fill in the few lines from the tutorial:

setContentView(R.layout.main);

When I ran the app, it launched my emulator but all I saw was a vertical screen on the left that said "ANDROID" and phone buttons on the right. I did not see the "Hello, Android" text from the tutorial.

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Android :: Map View Tutorial App On Emulator

Dec 23, 2009

I'm trying to run the Android Hello Map View tutorial app on the Android emulator. The Google Map view displays, but the tiles are blank.

Judging by the errors below (taken from LogCat) the app is unable to connect to the internet. The web browser on the emulator connects without problems. I've also double-checked the API key.I'm using the 1.5 Google APIs SDK, from Eclipse Galileo, on Windows XP SP3, behind a corporate firewall. I've tried two methods to add proxy information:Add -http-proxy http://www.foo.co.uk:80 to Additional Emulator Command Line Options in the Target Page in Debug Configurations.

Remove settings in 1. and add proxy information at Home > Menu > Settings > Wireless Controls > Mobile Networks > Access Point Names.

Neither seems to help. Any other ideas? Should I be adding proxy information within the app? If so, how? Sam Dutton, AMENDMENT: internet permission has been added to the manifest application element:

<uses-permission android:name="android.permission.INTERNET" />
12-23 16:43:31.624: INFO/System.out(717): waiting for debugger to settle...
12-23 16:43:31.828: INFO/System.out(717): debugger has settled (1480)
12-23 16:43:32.299: ERROR/ActivityThread(717): Failed to find provider info for com.google.settings

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Android :: GridView Tutorial Not Working

Sep 21, 2010

I have followed the tutorial and can't seem to get it to work.

Here's my code:

CODE:...........

All I get are error message everywhere. What did I do wrong?

I followed everything the tutorial said to do.

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Android :: Use List View Tutorial

Apr 6, 2010

How to use list view in android. Basically I have an array with names of people which I wanna display on the screen. The user can click and select multiple names, the selections are to be noted down for further processing.

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Android :: Interpret Adb Bugreport Tutorial

Oct 8, 2010

Is there any documentation around how to interpret adb bugreport

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Android :: Navigation Application Tutorial

Apr 5, 2010

I would like to make an navigation application, but I don't want to use an openSource, because I want my to be payable. I have some question, what would be great if you can give me some answers or tips where can I check them :

- If I set my Target marker on the map How can the application know what is the way ? Why not set the route across buildings, park,etc... how are the other navigation application knows where are the streets, corners ? So How can link the graph nodes to corners and How can the graph ways to be streets ?

- I would like to use OpenStreetMaps or Google Maps for the mapping. Are these know the Traffic rules ? For example One Way streets ?

I'm looking for a tutorial witch may teach about navigation?

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Android :: Live Wallpaper Tutorial

Jan 12, 2010

Android 2.1 has API support for creating live wallpapers. This means that we can implemente our own live wallpapers w00t!

However what i like to see is a Tutorial on creating such a live wallpaper. Is there going to be added one? What about battery live?

Or maybe a link to the sourcecode to one of the live wallpapers in Nexus One?

When i run a 2.1 emulator and choose a live wallpaper it says: "No live wallpapers"

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Android :: How To Complete Tab Layout Tutorial?

Feb 23, 2010

I've been trying to implement the tab UI described in this tutorial: http://developer.android.com/intl/de/resources/tutorials/views/hello-tabwidget.html I follow all the steps described in the process but I keep getting a runtime exception which I believe has something to do with the fact that nowhere in the tutorial I added the extra activities (songs, artists and albums) related to the content of each tab into the android manifest file. Am I correct? is this tutorial (like many others) faulty or incomplete?

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Android :: Pausing And Resuming Tutorial

Apr 7, 2010

I'm having some difficulty figuring out the best ways to pause and resume my application. Is there any comprehensive tutorial or something similar that would help me make sure that I'm not missing any important steps?Mostly I'm just worried about not dealing with the memory being used by my application. There's a few apps I own that when you minimize them slow down the rest of the phone to a stand still and I want to make sure to avoid that.

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Android :: Running Tutorial Tab Widget Under SDK 1.5

Feb 1, 2010

Does not compile. Indeed: even in 1.5, this api, getIntent(), is already listed as deprecated. The error message I get complains that getIntent() does not return a String, but setCurrentTab() expects a string. If I guess and change the line to read: tabHost.setCurrentTab(1); // was setCurrentTab(getIntent())", then it compiles, builds, but does not run. I get the "stopped unexpectedly" error message from the emulator. I cannot even get Log.d to output, so it seems that it stops 'unexpectedly' very early. So the first and main question is: what is the correct fix to "tabHost.setCurrentTab(getIntent())" in the final line of On Create() in http://developer.android.com/resources/tutorials/views/hello-tabwidget.html? The second and simpler question is: did I guess right in replacing 'mTabHost' with tabHost in the one place where that occurs?

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Android :: HelloGoogleMaps Tutorial Exception

Sep 27, 2010

I'm working with the HelloGoogleMaps tutorial on the Android Developers' Resource page (http://developer.android.com/resources/tutorials/views/hello-mapview.html) and when I run part 1 of the application ("Creating a Map Activity") on my emulator, I get the message "The application HelloGoogleMaps (process com.example) has stopped unexpectedly. Please try again." I'm pretty sure that I followed all of the instructions correctly, however I'm not sure that I set up my emulator environment correctly.

Here's the output from logcat:

CODE:......................

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Android :: Tutorial For Loading Image In Phone?

Sep 27, 2010

I am new in android devlopment
i want to know how to upload an image in android
i don't found any useful tutorial for this
can u give me some instruction.

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Android :: Tutorial To Use Opengl Interface In Droid Ndk?

Mar 22, 2010

If i wanna use the opengl interface in android ndk, then will it be possible to show
me a simple tutorial to let me master the android ndk?
i just wanna know how to operate in android ndk first.

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Android :: Tutorial For Custom Layouts / ViewGroups?

Oct 29, 2009

Could you recommend a tutorial for custom Layouts / ViewGroups? I couldn't find one.

My first project is to move the functionality of a GridView + Adapter to a ViewGroup, to put the enclosed Views in a grid.

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Android :: Tutorial To Create A Compass In Droid App?

Nov 18, 2009

I cannot find any tutorial on the web. How can I do it in a simple way?

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Android : Tutorial To Create On Custom View?

Mar 8, 2010

Can anyone suggest a good tutorial about how to create custom view?

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Android :: Error Running Helloworldtest From Tutorial

May 26, 2010

I'm getting the following error whenever I try to run a test. I have also tried to load some of the samples and test them, but I get the same error.

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Android :: Need Tutorial On Usage Of GPS Proximity Alerts With PendingIntent

Aug 5, 2009

Can anyone post some sample code or point me to a tutorial on usage of GPS proximity alerts with PendingIntent?

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Android :: Sample Or Tutorial In Using OpenGL In A Live Wallpaper In SDK 2.1

Jan 14, 2010

I've been checking out the Canvas-based "CubeLiveWallpaper" which uses Paint to create a rotating 3D Cube and it works very well. I've been trying to get my head wrapped around how to move/port the GLSurfaceViewActivity/CubeRenderer/Cube from the API samples into a Wallpaper Service but I'm not having much luck.

Basically, I'd like to take the OpenGL cube from the API sample and turn it into a "Live Wallpaper." Does anyone have any ideas, samples, examples I could work off of or where to get started?

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Android :: Backward Compatibility Tutorial - Application Not Working

Jun 29, 2010

I'm having trouble getting my app to work properly on older devices. I've ready the "Backward Compatibility" tutorial, I'm working for performance - and it suggestions using .invoke is considerably slower than using a wrapper class. But it seems the wrapper class only works for if a class is not available on older devices. I'm compiling with 2.2, but minSDK is 1.5. I'm working with multitouch, I assumed that if I checked against Build.Version.SDK, and didn't call getPointerCount() - then it wouldn't raise an error. But when I create an instance of the class which has my methods in, I get this: 06-29 08:17:28.263: ERROR/dalvikvm(255): Could not find method android.view.MotionEvent.getPointerCount, referenced from method com.myPackage.myClass. Despite not actually calling it. Is this normal?

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Android :: Show Two Or More Fields To List(Notepad Tutorial)?

May 10, 2009

Here is code of Notepad Tutorial . It only display title in the list. I want to display two or more fields of DB to the list.code...

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Android :: Droid Notepad Tutorial Crashing / Why This Is Happening?

Feb 9, 2010

I'm trying to run the Android Notepadv3 app on the Motorola Droid. When I am creating a new note, if I rotate my phone so that the view should switch to horizontal, or if I open it up so the keyboard is exposed, the app freezes and crashes.

I haven't modified the program in anyway from Exercise 3 solution (http://developer.android.com/resources/tutorials/notepad/index.html). Any ideas why this is happening?

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Android :: Tutorial For Developing Droid Desktop Widgets?

Jul 4, 2010

I like to develop a product something quite similar to what is shown here in the following link:http://getclicky.com/blog/221/5000-for-an-android-desktop-widget

Could someone provide me with an analysis of what is exactly required to develop a desktop widget for clicky.blog. Please comment and explain in detail.

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Android :: Example / Tutorial For Creating An Input Form Using Droid SDK?

Jun 2, 2010

I'm looking to create a simple form with some textfields and a button using the Android SDK. Could someone point out a good example or tutorial for getting started?

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Android :: Code / Tutorial That Sets Up Most Basic Opengl Es App?

Dec 28, 2009

I am looking for some sample code or tutorial that sets up the most basic opengl es application.

for example, just do glClear() in the renderloop.

i have already been searching the web but all i found was either out of date or too much and too complicated.

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