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• How to start an activity that is defined in other Android projects?

  - by qichuan

  I have defined some common Activities in a library project and want to reuse these activity in my working project. I declared my library project as Android library, use the fully-qualified name of the Activities and declare them in the AndroidManifest.xml of the new project. However, I get 'Unable to find explicit activity class' error when launching the application. Any other configurations shall I do in order to start the Activities?

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• My Android game runs out of memory when it is closed and opened and couple times.

  - by sirconnorstack

  I have an Android game that has an activity for the menu, and then another activity for the game that creates a SurfaceView and Thread to deal with canvas drawing and game logic. When you exit the game and start it up again too much or if you open and close the keyboard (thus restarting the activity), the game runs out of memory, usually when loading a bitmap: java.lang.OutOfMemoryError: bitmap size exceeds VM budget How can I keep all my images in memory without loading them again when the game changes state, or how can I release them from memory and let them reload when the game is restarted?

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• Is There a Standard Help Document/Manual in Android?

  - by Yenchi

  Hi All, I am writing and publishing my apps on android and would like to provide help document (manual) to users of my apps. I've seen apps open up external web pages as their help, or use html view to open local html documents. Are these the ways we are supposed to deliver manual to our users?

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• Is it possible to write apps for Android in C# ?

  - by Roberto Sebestyen

  We all know that Android runs Dalvik VM programs. Normally developers write programs in Java and they compile it to Dalvik bytecode. I wonder if it would be possible to create a compiler that can take C# code and compile it into Dalvik bitecode.

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• How can I add files to java app in android so I can get it path?

  - by masterkapu

  I want to add files to java app in android so I'll know their path and can access them. How can I do it? (It doesn't matter where they will be the most important is that I can access them and I'll know the relative path of the them)

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• How do I specify image dimensions in dp for an Android Gallery?

  - by Richard

  All the examples I've see for using the Gallery view in Android set a specific pixel size for the images using: i.setLayoutParams(new Gallery.LayoutParams(200, 200)); Can someone give me an example of how to size a gallery image using XML so that I can use dp units? Thanks!

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• How to save SMS to inbox in android programmatically and how to reqeust the correct permissions?

  - by Verena

  Found this question while trying to do the same: http://stackoverflow.com/questions/642076/how-to-save-sms-to-inbox-in-android-programmatically. But this part: getContentResolver().insert(Uri.parse("content://sms/sent"), values); throws an SecurityException. I requestet SMS_WRITE permission in the manifest file. Thanks in advance!

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• Android: How to create custom shape keys on keyboard?

  - by Solata

  I wonder how could is possible to make custom shape key on android keyboard. To create custom keyboard is relatively easy, but what needs to be done to create new buttons. They also need to respond with all events as normal keyboard. Any ideas where to start?

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• Can Android applications examine OS wide context, for example network related?

  - by Drakosha

  Can Android applications see OS wide context in terms of network? For example, what applications are using the network what IP addresses is the OS connected to etc. I'm asking because I know each application runs in it's own Dalvik virtual machine.

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• Does anyone have an example of how to stream the camera to a server on android?

  - by DaKawa

  I find plenty of examples of downstreaming a video from a server to an android, but I actually want to stream live images from my droid to a server.

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• Possible to Retrieve Device's Phone Number Automatically In Android?

  - by Stunner

  Ey guys, I am wondering if it is possible to retrieve device's phone number via the Android API(specifically 1.5 API). Thanks in advance!

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• How to keep soft keyboard from opening on activity launch in Android?

  - by araja

  In an Android app, whenever the activity launches, the textbox gets the focus and the soft keyboard pops up automatically. I have tried to stop this by using following line in onCreate method, but it does not work. ((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(EditText.getWindowToken(), 0);

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• How can I send an Android app that I'm developing to someone over e-mail?

  - by Emanuil

  It's my first Android app. I need to send what I have so far to someone for testing. It needs to be over e-mail. How should I do it?

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• What is the difference when a class extend from Handler and Thread? (In Android framework)

  - by XC

  What is the difference when a class extend from Handler and Thread? As described in developer.android.com ... Each Handler instance is associated with a single thread and that thread's message queue. ... Does the thread has no message queue ? Any benefit for a class extend from Handler?

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• How to make an Advanced user interface in Android ?

  - by Fevos

  i wonder how you can make an advanced Android User interface where you can add for example a drag drop and more graphics options? is that by using OpenGl ?! this is example of UI in iPhone Apps. example 1 example 2 Thanks

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• how do i change android soft keyboard's default language?

  - by Mastojun

  Hi. I have made android app. my client ask me that change default language at soft keyboard case by case. one case, keyboard should be English keyboard, another, Korean keyboard. how can i do? thx.

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• How can i achive file upload dialog box in android through java or xml layout.

  - by user342959

  Im new to android, developing a social networking application which requires user to upload images, but i dont know how to achive the file upload dialog box. How can we achive it,using java file or xml layout file?

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• Android: how to obtain AssetManager without reference to Context?

  - by ab11

  I have a Class that needs to obtain a reference to it's application's AssetManager. This class does not extend any sort of android UI class, so it doesn't have a getContext() method, or anything similar. Is there some sort of static Context.getCurrentApplicationContext() type of method? To clarify: my class is intended to be used like a library, for other applications. It has no associated AndroidManifest.xml or control over the context which is calling it.

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• get all the numbers (telephone) of a contact? (in android 2.1).

  - by Pedro

  guys, anybody has a code snippet where I can get all the numbers (telephone) of a contact? (in android 2.1).

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• how to center layout to vertical in android through java code?

  - by UMMA

  friends, i want to set android:layout_centerVertical="true" property of layout through java code of an image. can any one guide me how to achieve this. here is my code. RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); params.height = (int)totalHeight; img.setLayoutParams(params); i have tried using setScaleType(ScaleType.FIT_CENTER) but no use. any help would be appriciated.

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• how can I copy files to the file system of android?

  - by masterkapu

  How can I copy files to the file system (place) in android? How can I access it?

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• Can I make a phone call from HTML on Android?

  - by Kevin

  To make a phone call via HTML on an iPhone I create an <A/> tag with an href formatted as: <a href='tel:123-555-1212'>Dial Me</a>. Is there an equivelant for HTML on Android?

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• how to calculate power consumption on an Android mobile that uses wifi?

  - by Marco

  Hello, I have implemented a routing protocol on an Android 1.6 mobile that uses wireless (ad-hoc) network in order to exchange messages. Now I would like to evaluate it under an energy consumption point of view, the base would be to try to calculate the energy wasted to transmit a single packet, do anybody has any idea how to do that? Software/hardware solutions are welcome! Thanx :)

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• create db,table and insert data and retrive it in android.

  - by raji

  hi, I am new to android. Can anyone please help me to create db ,table and insert data and retrive it make it display in list.I am really in need of your help.

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• Would it make sense to have a separate Scala library in Android market?

  - by soc

  As far as I understand it is necessary for people using Scala for Android applications to bundle the Scala classes they used with their application. Considering this adds hundreds of kilobytes to each Scala app redundantly, would it be possible to build a Scala library which can be delivered over the market, so app writers can just depend on that library instead of bundling it themselves?

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