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2014/10/16 ¤W¤È 08:10:01
android Programming Glossary: anythingAndroid - what's the difference between the various methods to get a Context? http://stackoverflow.com/questions/1026973/android-whats-the-difference-between-the-various-methods-to-get-a-context orientation changes and such. I couldn't find really anything about when to use getBaseContext other than a post from Dianne..
Saving Activity state in Android http://stackoverflow.com/questions/151777/saving-activity-state-in-android away in the docs for 30 minutes or so and haven't found anything obvious so would appreciate any help. Cue me looking a fool..
http://stackoverflow.com/questions/16636039/java-lang-classnotfoundexception-after-changing-nothing-in-the-project-but-upgra Android target in case the new revisions to API17 had made anything crash ... I have searched through StackOverflow's already asked..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android information. There is no animation no special effects or anything that can fill the memory. Sometimes the drawables can change...
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon play with one yet . In all of those users don't terminate anything they just leave. iPhone is a bit different in that it only presently.. currently running activity. Users generally don't need anything else for properly written applications any more than they need..
Declaring a custom android UI element using XML http://stackoverflow.com/questions/2695646/declaring-a-custom-android-ui-element-using-xml R.attr.textColor Please note that you should not use anything in android.R.styleable as per this thread it may change in the..
Developing for Android in Eclipse: R.java not generating http://stackoverflow.com/questions/2757107/developing-for-android-in-eclipse-r-java-not-generating now. How can I generate one I'm using Win7 if that changes anything. From one of the comments Doing Project Clean is what caused..
How to send a JSON object over Request with Android? http://stackoverflow.com/questions/3027066/how-to-send-a-json-object-over-request-with-android the object in a variable named jason has to do with anything. If you're not sure what exactly the server wants consider writing..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a need to worry about if the user is moving around or anything like that. Here's what I'd like to do Show the user a list of..
Make an HTTP request with android http://stackoverflow.com/questions/3505930/make-an-http-request-with-android onPostExecute String result super.onPostExecute result Do anything with response.. You then can make a request by new RequestTask..
How to disable Mobile Data on Android http://stackoverflow.com/questions/3644144/how-to-disable-mobile-data-on-android textView.setText state.name If anyone can point me to anything that could help it would be most appreciated. UPDATE It appears..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android app global state it should go here nowhere else. For anything else rethink if you really need a singleton object or if it..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds that supports auto resizing. My searches did not turn up anything that worked for me and in the end I spent the better half of..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables to Applications being killed at any time etc... moot as anything that ever needed to be persisted to disk should not be stored..
Android Activity Life Cycle - What are all these methods for? http://stackoverflow.com/questions/8515936/android-activity-life-cycle-what-are-all-these-methods-for be created until A's onPause returns so be sure to not do anything lengthy here. onStop Called when you are no longer visible to..
Using Application context everywhere? http://stackoverflow.com/questions/987072/using-application-context-everywhere Application context everywhere In an Android app is there anything wrong with the following approach public class MyApp extends.. In particular you should be careful when dealing with anything that deals with the GUI that requires a Context. For example..
How to specify Activities that are only for phones or tablets on Android http://stackoverflow.com/questions/13202805/how-to-specify-activities-that-are-only-for-phones-or-tablets-on-android void onCreate Bundle icicle super.onCreate icicle Anything else you want to do in the onCreate callback Set up to use the..
Android 4.2 broke my encrypt/decrypt code and the provided solutions don't work http://stackoverflow.com/questions/13433529/android-4-2-broke-my-encrypt-decrypt-code-and-the-provided-solutions-dont-work SecretKey key new SecretKeySpec keyBytes AES That's it. Anything else you should not use. If you accidentally used some other..
Google Play Service - SupportMapFragment.getMap() always returning null [duplicate] http://stackoverflow.com/questions/14067889/google-play-service-supportmapfragment-getmap-always-returning-null true mMapFragment.getMap .setMyLocationEnabled true Anything that I'm doing wrong android android maps google play services..
Android ADB device offline, can't issue commands http://stackoverflow.com/questions/14993855/android-adb-device-offline-cant-issue-commands times Update android SDK really no clue what's going on. Anything else you think I can try I'm all ears. To be clear if you're..
ListView Adapter with arbitrary number of row types (Don't know the number of different row types) http://stackoverflow.com/questions/17370525/listview-adapter-with-arbitrary-number-of-row-types-dont-know-the-number-of-di in it either or it might just be one or several quotes. Anything is possible. When I list the posts in my application I am using..
Drawable-xxxx : Eclipse Versus AVD http://stackoverflow.com/questions/20112596/drawable-xxxx-eclipse-versus-avd right between Eclipse and the AVD The hardware is right. Anything else is shaky. In particular AVDs seem to get wonky with high..
Prevent onPause from trashing OpenGL Context http://stackoverflow.com/questions/2112768/prevent-onpause-from-trashing-opengl-context public void onResume myGlSurfaceView.onResume Anything you hold outside the GL environment will still need to be preserved..
what's design pattern principle in the Android development? http://stackoverflow.com/questions/3235380/whats-design-pattern-principle-in-the-android-development heavily. Activity Controller Model Subclass of Application Anything that subclasses View View Interestingly you can create a subclass..
What is the Android UiThread (UI thread) http://stackoverflow.com/questions/3652560/what-is-the-android-uithread-ui-thread this is where all of the updates to the UI are made. Anything that causes the UI to be updated or changed HAS to happen on..
Android: delegate touch event to underlaying view http://stackoverflow.com/questions/3832893/android-delegate-touch-event-to-underlaying-view event Log.i TAG PopupWindow onTouch return false Anything else I have to do to delegate the touch event all the way to..
How to respect network use settings in Android http://stackoverflow.com/questions/4634633/how-to-respect-network-use-settings-in-android any other checks I need to implement for network settings Anything else in this area I should be aware of android share improve..
How to limit framerate when using Android's GLSurfaceView.RENDERMODE_CONTINUOUSLY? http://stackoverflow.com/questions/4772693/how-to-limit-framerate-when-using-androids-glsurfaceview-rendermode-continuousl rate varies from about 20 45fps due to scene complexity. Anything above 30fps is silly for the game it's just burning battery...
http://stackoverflow.com/questions/6001148/donate-via-in-app-billing really a mechanism for doing donations in in app billing. Anything you sell needs to be sold as virtual goods fixed products with..
How to get x and y coordinate of bitmap image in image control? http://stackoverflow.com/questions/6951887/how-to-get-x-and-y-coordinate-of-bitmap-image-in-image-control ordinate Absolute and Bitmap co ordinate go out of sync. Anything you write to the bitmap gets displayed through canvas in onDraw..
Failed to find style 'mapViewStyle' in current theme http://stackoverflow.com/questions/7371166/failed-to-find-style-mapviewstyle-in-current-theme 4. Failed to find style 'textViewStyle' in current theme Anything from the above list it may be The ultimate reason is We have..
Mobile development - Native VS Cross Platform VS JavaScript [closed] http://stackoverflow.com/questions/8865277/mobile-development-native-vs-cross-platform-vs-javascript but lately acquired by adobe not a good sign Appcelerator Anything from Javascript to PHP and to python have a nice range of API..
Debugging Android NDK native apps http://stackoverflow.com/questions/8934575/debugging-android-ndk-native-apps Android.mk in jni has LOCAL_CFLAGS g And using ant debug Anything else Edit2 There's also ndk build NDK_DEBUG 1 which I just tried..
How to determine if network type is 2G, 3G or 4G http://stackoverflow.com/questions/9283765/how-to-determine-if-network-type-is-2g-3g-or-4g LTE to be 4G but which of these are really considered 3G Anything else I would consider 2G. So where do you draw the line between..
Android maps:Failed to find style 'mapViewStyle' in current theme http://stackoverflow.com/questions/9456100/android-mapsfailed-to-find-style-mapviewstyle-in-current-theme 4. Failed to find style 'textViewStyle' in current theme Anything from the above list it may be The ultimate reason is We have..
Use Roboto font for earlier devices http://stackoverflow.com/questions/9797872/use-roboto-font-for-earlier-devices class or a way to set a custom font in a .xml theme file Anything automated would be better than manually listing out every object..
Android - what's the difference between the various methods to get a Context? http://stackoverflow.com/questions/1026973/android-whats-the-difference-between-the-various-methods-to-get-a-context destroyed many times as the activity is destroyed during screen orientation changes and such. I couldn't find really anything about when to use getBaseContext other than a post from Dianne Hackborn one of the Google engineers working on the Android..
Saving Activity state in Android http://stackoverflow.com/questions/151777/saving-activity-state-in-android overriding onPause or something like that but I've been poking away in the docs for 30 minutes or so and haven't found anything obvious so would appreciate any help. Cue me looking a fool in three two one... android application state share improve..
http://stackoverflow.com/questions/16636039/java-lang-classnotfoundexception-after-changing-nothing-in-the-project-but-upgra I have tried a lot of things cleaned the project changed Android target in case the new revisions to API17 had made anything crash ... I have searched through StackOverflow's already asked questions but have not found any of the situations in which..
java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android http://stackoverflow.com/questions/1949066/java-lang-outofmemoryerror-bitmap-size-exceeds-vm-budget-android Layouts Listviews Textviews ImageViews etc and user reads the information. There is no animation no special effects or anything that can fill the memory. Sometimes the drawables can change. Some are android resources and some are files saved in a folder..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon I understand their model correctly haven't had a chance to play with one yet . In all of those users don't terminate anything they just leave. iPhone is a bit different in that it only presently allows one thing to run at a time with a few exceptions.. you users via BACK or your code via finish can close up your currently running activity. Users generally don't need anything else for properly written applications any more than they need a quit option for using Web apps. No two application environments..
Declaring a custom android UI element using XML http://stackoverflow.com/questions/2695646/declaring-a-custom-android-ui-element-using-xml are in R.attr . int attrsWanted new int android.R.attr.text R.attr.textColor Please note that you should not use anything in android.R.styleable as per this thread it may change in the future. It is still in the documentation as being to view..
Developing for Android in Eclipse: R.java not generating http://stackoverflow.com/questions/2757107/developing-for-android-in-eclipse-r-java-not-generating a new one. But that didn't happen and I don't have R.java now. How can I generate one I'm using Win7 if that changes anything. From one of the comments Doing Project Clean is what caused the problem for me. Cleaning deletes R.java...and for whatever..
How to send a JSON object over Request with Android? http://stackoverflow.com/questions/3027066/how-to-send-a-json-object-over-request-with-android code I used to send an HTTP POST. I don't understand what sending the object in a variable named jason has to do with anything. If you're not sure what exactly the server wants consider writing a test program to send various strings to the server..
What is the simplest and most robust way to get the user's current location in Android? http://stackoverflow.com/questions/3145089/what-is-the-simplest-and-most-robust-way-to-get-the-users-current-location-in-a in order to display a list of nearby businesses. It doesn't need to worry about if the user is moving around or anything like that. Here's what I'd like to do Show the user a list of nearby locations. Preload the user's location so that by the..
Make an HTTP request with android http://stackoverflow.com/questions/3505930/make-an-http-request-with-android problems.. return responseString @Override protected void onPostExecute String result super.onPostExecute result Do anything with response.. You then can make a request by new RequestTask .execute http stackoverflow.com share improve this answer..
How to disable Mobile Data on Android http://stackoverflow.com/questions/3644144/how-to-disable-mobile-data-on-android cm.getNetworkInfo ConnectivityManager.TYPE_MOBILE .getState textView.setText state.name If anyone can point me to anything that could help it would be most appreciated. UPDATE It appears that the HTC Evo on Sprint does not use APN settings. I..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android and access path. Hence I believe that if you do need to manage app global state it should go here nowhere else. For anything else rethink if you really need a singleton object or if it would also be possible to rewrite your singleton class to instead..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds As a mobile developer I was sad to find nothing native that supports auto resizing. My searches did not turn up anything that worked for me and in the end I spent the better half of my weekend and created my own auto resize text view. I will..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables lifetimes. Thus I consider most criticism below related to Applications being killed at any time etc... moot as anything that ever needed to be persisted to disk should not be stored through an Application subclass. It is meant to be a solution..
Android Activity Life Cycle - What are all these methods for? http://stackoverflow.com/questions/8515936/android-activity-life-cycle-what-are-all-these-methods-for of activity A this callback will be invoked on A. B will not be created until A's onPause returns so be sure to not do anything lengthy here. onStop Called when you are no longer visible to the user. You will next receive either onRestart onDestroy..
Using Application context everywhere? http://stackoverflow.com/questions/987072/using-application-context-everywhere Application context everywhere In an Android app is there anything wrong with the following approach public class MyApp extends android.app.Application private static MyApp instance public.. a lot of circumstances such as your example it will work well. In particular you should be careful when dealing with anything that deals with the GUI that requires a Context. For example if you pass the application Context into the LayoutInflator..
How to specify Activities that are only for phones or tablets on Android http://stackoverflow.com/questions/13202805/how-to-specify-activities-that-are-only-for-phones-or-tablets-on-android likely in the onCreate of your initial Activity @Override protected void onCreate Bundle icicle super.onCreate icicle Anything else you want to do in the onCreate callback Set up to use the appropriate Activities for the given device UIUtils.configureDeviceSpecificActivities..
Android 4.2 broke my encrypt/decrypt code and the provided solutions don't work http://stackoverflow.com/questions/13433529/android-4-2-broke-my-encrypt-decrypt-code-and-the-provided-solutions-dont-work byte keyBytes keyFactory.generateSecret keySpec .getEncoded SecretKey key new SecretKeySpec keyBytes AES That's it. Anything else you should not use. If you accidentally used some other method such as SecureRandom to derive keys you can recover...
Google Play Service - SupportMapFragment.getMap() always returning null [duplicate] http://stackoverflow.com/questions/14067889/google-play-service-supportmapfragment-getmap-always-returning-null true mMapFragment.getMap .getUiSettings .setZoomGesturesEnabled true mMapFragment.getMap .setMyLocationEnabled true Anything that I'm doing wrong android android maps google play services share improve this question As CommonsWare stated in..
Android ADB device offline, can't issue commands http://stackoverflow.com/questions/14993855/android-adb-device-offline-cant-issue-commands Cyanogen Mod Swapped USB cord Reboot Phone Computer multiple times Update android SDK really no clue what's going on. Anything else you think I can try I'm all ears. To be clear if you're having this same issue the problem is probably out of date..
ListView Adapter with arbitrary number of row types (Don't know the number of different row types) http://stackoverflow.com/questions/17370525/listview-adapter-with-arbitrary-number-of-row-types-dont-know-the-number-of-di than in the example and it doesn't have to have quotes in it either or it might just be one or several quotes. Anything is possible. When I list the posts in my application I am using a ListView. Each row of this listview will then always consist..
Drawable-xxxx : Eclipse Versus AVD http://stackoverflow.com/questions/20112596/drawable-xxxx-eclipse-versus-avd android eclipse share improve this question Which one is right between Eclipse and the AVD The hardware is right. Anything else is shaky. In particular AVDs seem to get wonky with high densities. Does the OS not use this density It is presently..
Prevent onPause from trashing OpenGL Context http://stackoverflow.com/questions/2112768/prevent-onpause-from-trashing-opengl-context following overridden methods public void onPause myGlSurfaceView.onPause public void onResume myGlSurfaceView.onResume Anything you hold outside the GL environment will still need to be preserved and restored manually however bitmaps game state etc..
what's design pattern principle in the Android development? http://stackoverflow.com/questions/3235380/whats-design-pattern-principle-in-the-android-development Android is MVC. However it's coupled to the View fairly heavily. Activity Controller Model Subclass of Application Anything that subclasses View View Interestingly you can create a subclass of Application and declare this in your Manifest file..
What is the Android UiThread (UI thread) http://stackoverflow.com/questions/3652560/what-is-the-android-uithread-ui-thread methods like OnCreate OnPause OnDestroy OnClick etc. Additionally this is where all of the updates to the UI are made. Anything that causes the UI to be updated or changed HAS to happen on the UI thread. For more info on your applications Processes..
Android: delegate touch event to underlaying view http://stackoverflow.com/questions/3832893/android-delegate-touch-event-to-underlaying-view OnTouchListener @Override public boolean onTouch View v MotionEvent event Log.i TAG PopupWindow onTouch return false Anything else I have to do to delegate the touch event all the way to the Activity android events touch share improve this question..
How to respect network use settings in Android http://stackoverflow.com/questions/4634633/how-to-respect-network-use-settings-in-android networkInfo.isAvailable checks this for me. So are there any other checks I need to implement for network settings Anything else in this area I should be aware of android share improve this question The user may change the settings while your..
How to limit framerate when using Android's GLSurfaceView.RENDERMODE_CONTINUOUSLY? http://stackoverflow.com/questions/4772693/how-to-limit-framerate-when-using-androids-glsurfaceview-rendermode-continuousl I have a C game running through JNI in Android. The frame rate varies from about 20 45fps due to scene complexity. Anything above 30fps is silly for the game it's just burning battery. I'd like to limit the frame rate to 30 fps. I could switch..
http://stackoverflow.com/questions/6001148/donate-via-in-app-billing in app billing share improve this question There isn't really a mechanism for doing donations in in app billing. Anything you sell needs to be sold as virtual goods fixed products with fixed prices. It is possible to sell unmanaged items which..
How to get x and y coordinate of bitmap image in image control? http://stackoverflow.com/questions/6951887/how-to-get-x-and-y-coordinate-of-bitmap-image-in-image-control Translation When user drags the image the screen co ordinate Absolute and Bitmap co ordinate go out of sync. Anything you write to the bitmap gets displayed through canvas in onDraw If apply coloring user would see it getting applied on a..
Failed to find style 'mapViewStyle' in current theme http://stackoverflow.com/questions/7371166/failed-to-find-style-mapviewstyle-in-current-theme 3. Failed to find style 'editTextStyle' in current theme 4. Failed to find style 'textViewStyle' in current theme Anything from the above list it may be The ultimate reason is We have selected the unavailable Theme for the layout . This may cause..
Mobile development - Native VS Cross Platform VS JavaScript [closed] http://stackoverflow.com/questions/8865277/mobile-development-native-vs-cross-platform-vs-javascript seems easy and mostly based on Javascript It is open source but lately acquired by adobe not a good sign Appcelerator Anything from Javascript to PHP and to python have a nice range of API Access but we heard many stories of rejection by apple and..
Debugging Android NDK native apps http://stackoverflow.com/questions/8934575/debugging-android-ndk-native-apps have debug symbols I believe. ndk build B V 1 APP_OPTIM debug Android.mk in jni has LOCAL_CFLAGS g And using ant debug Anything else Edit2 There's also ndk build NDK_DEBUG 1 which I just tried but I still get where it looks like I don't have debug..
How to determine if network type is 2G, 3G or 4G http://stackoverflow.com/questions/9283765/how-to-determine-if-network-type-is-2g-3g-or-4g type is unknown Constant Value 0 0x00000000 I would consider LTE to be 4G but which of these are really considered 3G Anything else I would consider 2G. So where do you draw the line between 3G or not 3G Update I found another relevant answer at http..
Android maps:Failed to find style 'mapViewStyle' in current theme http://stackoverflow.com/questions/9456100/android-mapsfailed-to-find-style-mapviewstyle-in-current-theme 3. Failed to find style 'editTextStyle' in current theme 4. Failed to find style 'textViewStyle' in current theme Anything from the above list it may be The ultimate reason is We have selected the unavailable Theme for the layout . This may cause..
Use Roboto font for earlier devices http://stackoverflow.com/questions/9797872/use-roboto-font-for-earlier-devices My question is is there a better way to do this Some helper class or a way to set a custom font in a .xml theme file Anything automated would be better than manually listing out every object on each screen and changing the font. Thanks android android..
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