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2014/10/16 ¤W¤È 08:12:19
android Programming Glossary: destroyJava Can't create handler inside thread that has not called Looper.prepare() http://stackoverflow.com/questions/10403858/java-cant-create-handler-inside-thread-that-has-not-called-looper-prepare the bottom. The thread will stay open until you explicitly destroy it. In order to destroy a Looper thread you must have a method.. stay open until you explicitly destroy it. In order to destroy a Looper thread you must have a method in your Thread class..
Android ViewPager - can't update dynamically http://stackoverflow.com/questions/10849552/android-viewpager-cant-update-dynamically and not touch instantiateItem at all. The instantiateItem destroyItem isViewFromObject interface on PagerAdapter is a lower level.. example that won't work because FragmentPagerAdapter never destroys a fragment after it's been displayed the first time. I don't.. which means This object is fine where it is don't destroy or remove it. Returning POSITION_NONE fixes the problem by instead..
Understanding Fragment's setRetainInstance(boolean) http://stackoverflow.com/questions/11182180/understanding-fragments-setretaininstanceboolean change what exactly is retained Will the fragment be destroyed when the user leaves the activity Why doesn't it work with.. Specifically retained means that the fragment will not be destroyed on configuration changes. That is the Fragment will be retained.. configuration change causes the underlying Activity to be destroyed. Will the fragment be destroyed when the user leaves the activity..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon application in Android but Android can very well totally destroy your app whenever it feels like it . What's up with that I am..
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application it whenever the app needs to be killed. For example in the destroy method of the root activity assuming that the app never kills.. of a root activity that kills the application when it is destroyed package android.example @author Danny Remington MacroSolve..
How to use TabHost.OnTabChangeListener in android? http://stackoverflow.com/questions/2243360/how-to-use-tabhost-ontabchangelistener-in-android void onTabChanged String tabId if TAB_1_TAG.equals tabId destroy earth if TAB_2_TAG.equals tabId destroy mars Where TAB_1_TAG.. tabId destroy earth if TAB_2_TAG.equals tabId destroy mars Where TAB_1_TAG is the tag provided to the newTabSpec..
Can I use assert on Android devices? http://stackoverflow.com/questions/2364910/can-i-use-assert-on-android-devices I want to use the assert keyword in my android apps to destroy my app in some cases on the emulator or my device during testing...
Android View.onDraw() always has a clean Canvas http://stackoverflow.com/questions/2423327/android-view-ondraw-always-has-a-clean-canvas canvas.setBitmap bitmap public void destroy if bitmap null bitmap.recycle public void onDraw Canvas c..
http://stackoverflow.com/questions/3130654/memory-leak-in-webview the WebView from the xml layout. I already tried a webView.destroy webView null in onDestroy of my activity but that doesn't help.. has the following remaining GC roots after having called destroy on it com.myapp.android.activity.browser.Browser mContext of..
http://stackoverflow.com/questions/3197335/restful-api-service already bound Toast.LENGTH_SHORT .show protected void destroy releaseService private void releaseService if conn null context.unbindService..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android oldVersion to NON NLS 1 NON NLS 2 newVersion which will destroy all old data NON NLS 1 db.execSQL DROP TABLE IF EXISTS usersinfo..
Screen blinking when using a webview with flash http://stackoverflow.com/questions/5095977/screen-blinking-when-using-a-webview-with-flash e.g. get rid of the hardcoded 800x480 dimensions and also destroy the white SurfaceView once it's no longer needed. ORIGINAL WRONG..
onDestroy gets called each time the screen goes on http://stackoverflow.com/questions/6772988/ondestroy-gets-called-each-time-the-screen-goes-on the screenOrientation landscape the application won't be destroyed each time i wake up my device. I tried it more than 10 times.. code Any tips or pieces of code android screen onresume ondestroy onpause share improve this question If you want to stop.. share improve this question If you want to stop the destroy create issue that is the default in android because of an orientation..
Where to stop/destroy threads in Android Service class? http://stackoverflow.com/questions/680180/where-to-stop-destroy-threads-in-android-service-class to stop destroy threads in Android Service class I have created a threaded.. thread meaning the VM will ensure that it is automatically destroyed if there are no non daemon threads running such as if your..
How to create a Table with a column of type BLOB in a DBAdapter http://stackoverflow.com/questions/7516933/how-to-create-a-table-with-a-column-of-type-blob-in-a-dbadapter database from version oldVersion to newVersion which will destroy all old data db.execSQL DROP TABLE IF EXISTS notes onCreate..
ViewPager and fragments ??what's the right way to store fragment's state? http://stackoverflow.com/questions/7951730/viewpager-and-fragments-whats-the-right-way-to-store-fragments-state new String mScreens.size position hack. we don't want to destroy our fragments and re initiate them after @Override public void.. fragments and re initiate them after @Override public void destroyItem View container int position Object object TODO Auto generated.. front and behind the current position although it does not destroy them unless you are using FragmentStatePagerAdapter . This is..
Android : How to change Playback Rate of music using OpenSL ES http://stackoverflow.com/questions/11094377/android-how-to-change-playback-rate-of-music-using-opensl-es interfaces if uriPlayerObject NULL uriPlayerObject Destroy uriPlayerObject uriPlayerObject NULL uriPlayerPlay NULL uriPlayerSeek.. interfaces if outputMixObject NULL outputMixObject Destroy outputMixObject outputMixObject NULL destroy engine object.. associated interfaces if engineObject NULL engineObject Destroy engineObject engineObject NULL engineEngine NULL void OnCompletion..
Android Fragments Retaining Data http://stackoverflow.com/questions/11853389/android-fragments-retaining-data within a Fragment as its activity goes through an onCreate Destroy cycle like from Rotation In our setup we have potentially large..
Android: How to get Scroll-Position from Gridview http://stackoverflow.com/questions/6125013/android-how-to-get-scroll-position-from-gridview container.getChildAt 0 if null first offset first.getTop Destroy the position through rotation or whatever here mGrid.setSelection..
Difference between onCreate() and onStart()? [duplicate] http://stackoverflow.com/questions/6812003/difference-between-oncreate-and-onstart On Create ..... non Javadoc @see android.app.Activity#onDestroy @Override protected void onDestroy super.onDestroy Log.i TAG.. android.app.Activity#onDestroy @Override protected void onDestroy super.onDestroy Log.i TAG On Destroy ..... non Javadoc @see.. @Override protected void onDestroy super.onDestroy Log.i TAG On Destroy ..... non Javadoc @see android.app.Activity#onPause..
Java Can't create handler inside thread that has not called Looper.prepare() http://stackoverflow.com/questions/10403858/java-cant-create-handler-inside-thread-that-has-not-called-looper-prepare at the top of the run method then call Looper.loop at the bottom. The thread will stay open until you explicitly destroy it. In order to destroy a Looper thread you must have a method in your Thread class that calls Looper.getMyLooper .quit.. run method then call Looper.loop at the bottom. The thread will stay open until you explicitly destroy it. In order to destroy a Looper thread you must have a method in your Thread class that calls Looper.getMyLooper .quit . An example thread class..
Android ViewPager - can't update dynamically http://stackoverflow.com/questions/10849552/android-viewpager-cant-update-dynamically it is best to deal solely with getItem and not touch instantiateItem at all. The instantiateItem destroyItem isViewFromObject interface on PagerAdapter is a lower level interface that FragmentPagerAdapter uses to implement the.. made the mistake of using FragmentPagerAdapter for its example that won't work because FragmentPagerAdapter never destroys a fragment after it's been displayed the first time. I don't recommend the setTag and findViewWithTag workaround provided.. or removed. By default getItemPosition returns POSITION_UNCHANGED which means This object is fine where it is don't destroy or remove it. Returning POSITION_NONE fixes the problem by instead saying This object is no longer an item I'm displaying..
Understanding Fragment's setRetainInstance(boolean) http://stackoverflow.com/questions/11182180/understanding-fragments-setretaininstanceboolean also retain it's view or will this be recreated on configuration change what exactly is retained Will the fragment be destroyed when the user leaves the activity Why doesn't it work with fragments on the back stack Which are the use cases where it.. 's state will be retained across the configuration change. Specifically retained means that the fragment will not be destroyed on configuration changes. That is the Fragment will be retained even if the configuration change causes the underlying.. changes. That is the Fragment will be retained even if the configuration change causes the underlying Activity to be destroyed. Will the fragment be destroyed when the user leaves the activity Just like Activity s Fragment s may be destroyed by..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon I run into some sort of problem Apparently you cannot quit an application in Android but Android can very well totally destroy your app whenever it feels like it . What's up with that I am starting to think that it's impossible to write an app that..
How to close Android application? http://stackoverflow.com/questions/2092951/how-to-close-android-application a method like the following in a helper class and then call it whenever the app needs to be killed. For example in the destroy method of the root activity assuming that the app never kills this activity Also Android will not notify an application.. Below is some example classes to illustrate Here's an example of a root activity that kills the application when it is destroyed package android.example @author Danny Remington MacroSolve public class HomeKey extends CustomActivity public void onDestroy..
How to use TabHost.OnTabChangeListener in android? http://stackoverflow.com/questions/2243360/how-to-use-tabhost-ontabchangelistener-in-android new OnTabChangeListener @Override public void onTabChanged String tabId if TAB_1_TAG.equals tabId destroy earth if TAB_2_TAG.equals tabId destroy mars Where TAB_1_TAG is the tag provided to the newTabSpec method when creating..
Can I use assert on Android devices? http://stackoverflow.com/questions/2364910/can-i-use-assert-on-android-devices I use assert on Android devices I want to use the assert keyword in my android apps to destroy my app in some cases on the emulator or my device during testing. Is this possible It seems that the emulator just ignores..
Android View.onDraw() always has a clean Canvas http://stackoverflow.com/questions/2423327/android-view-ondraw-always-has-a-clean-canvas .recycle canvas new Canvas bitmap Bitmap.createBitmap w h Bitmap.Config.ARGB_8888 canvas.setBitmap bitmap public void destroy if bitmap null bitmap.recycle public void onDraw Canvas c draw onto the canvas if needed maybe only the parts of animation..
http://stackoverflow.com/questions/3130654/memory-leak-in-webview dump . The activity is entirely cleared though if I remove the WebView from the xml layout. I already tried a webView.destroy webView null in onDestroy of my activity but that doesn't help much. In my hprof dump my activity named 'Browser' has the.. help much. In my hprof dump my activity named 'Browser' has the following remaining GC roots after having called destroy on it com.myapp.android.activity.browser.Browser mContext of android.webkit.JWebCoreJavaBridge sJavaBridge of android.webkit.BrowserFrame..
http://stackoverflow.com/questions/3197335/restful-api-service else Toast.makeText context Cannot bind service already bound Toast.LENGTH_SHORT .show protected void destroy releaseService private void releaseService if conn null context.unbindService conn conn null Log.d LOG_TAG unbindService..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android int newVersion Log.w TAG Upgrading database from version oldVersion to NON NLS 1 NON NLS 2 newVersion which will destroy all old data NON NLS 1 db.execSQL DROP TABLE IF EXISTS usersinfo NON NLS 1 onCreate db public InfoDBAdapter Context ctx..
Screen blinking when using a webview with flash http://stackoverflow.com/questions/5095977/screen-blinking-when-using-a-webview-with-flash starts drawing. You will probably need to adapt it a bit e.g. get rid of the hardcoded 800x480 dimensions and also destroy the white SurfaceView once it's no longer needed. ORIGINAL WRONG ANSWER Looks like Adobe are to blame for this one. The..
onDestroy gets called each time the screen goes on http://stackoverflow.com/questions/6772988/ondestroy-gets-called-each-time-the-screen-goes-on filter activity application manifest As soon as i remove the screenOrientation landscape the application won't be destroyed each time i wake up my device. I tried it more than 10 times but no more calls to onDestroy So i think i will have to.. calls to onDestroy So i think i will have to set this in code Any tips or pieces of code android screen onresume ondestroy onpause share improve this question If you want to stop the destroy create issue that is the default in android because.. or pieces of code android screen onresume ondestroy onpause share improve this question If you want to stop the destroy create issue that is the default in android because of an orientation change and lock in one orientation then you need to..
Where to stop/destroy threads in Android Service class? http://stackoverflow.com/questions/680180/where-to-stop-destroy-threads-in-android-service-class to stop destroy threads in Android Service class I have created a threaded service the following way public class TCPClientService extends.. you start the thread. This flags the thread as a daemon thread meaning the VM will ensure that it is automatically destroyed if there are no non daemon threads running such as if your app quits . Obeying best practices with regards to Threads..
How to create a Table with a column of type BLOB in a DBAdapter http://stackoverflow.com/questions/7516933/how-to-create-a-table-with-a-column-of-type-blob-in-a-dbadapter db int oldVersion int newVersion Log.w TAG Upgrading database from version oldVersion to newVersion which will destroy all old data db.execSQL DROP TABLE IF EXISTS notes onCreate db Constructor takes the context to allow the database to be..
ViewPager and fragments ??what's the right way to store fragment's state? http://stackoverflow.com/questions/7951730/viewpager-and-fragments-whats-the-right-way-to-store-fragments-state String getTitle int position return mScreens.keySet .toArray new String mScreens.size position hack. we don't want to destroy our fragments and re initiate them after @Override public void destroyItem View container int position Object object TODO.. mScreens.size position hack. we don't want to destroy our fragments and re initiate them after @Override public void destroyItem View container int position Object object TODO Auto generated method stub Fragment public class MessagesFragment extends.. steps. By default it will only preload one Fragment in front and behind the current position although it does not destroy them unless you are using FragmentStatePagerAdapter . This is controlled by ViewPager.setOffscreenPageLimit int . Because..
Android : How to change Playback Rate of music using OpenSL ES http://stackoverflow.com/questions/11094377/android-how-to-change-playback-rate-of-music-using-opensl-es clazz destroy URI audio player object and invalidate all associated interfaces if uriPlayerObject NULL uriPlayerObject Destroy uriPlayerObject uriPlayerObject NULL uriPlayerPlay NULL uriPlayerSeek NULL destroy output mix object and invalidate all.. NULL destroy output mix object and invalidate all associated interfaces if outputMixObject NULL outputMixObject Destroy outputMixObject outputMixObject NULL destroy engine object and invalidate all associated interfaces if engineObject NULL.. outputMixObject NULL destroy engine object and invalidate all associated interfaces if engineObject NULL engineObject Destroy engineObject engineObject NULL engineEngine NULL void OnCompletion JNIEnv env jclass clazz jclass cls env GetObjectClass..
Android Fragments Retaining Data http://stackoverflow.com/questions/11853389/android-fragments-retaining-data Fragments Retaining Data How does one best retain data within a Fragment as its activity goes through an onCreate Destroy cycle like from Rotation In our setup we have potentially large lists loaded from our servers into the fragments custom..
Android: How to get Scroll-Position from Gridview http://stackoverflow.com/questions/6125013/android-how-to-get-scroll-position-from-gridview int index mGrid.getFirstVisiblePosition final View first container.getChildAt 0 if null first offset first.getTop Destroy the position through rotation or whatever here mGrid.setSelection index mGrid.scrollBy 0 offset By that you can not get..
Difference between onCreate() and onStart()? [duplicate] http://stackoverflow.com/questions/6812003/difference-between-oncreate-and-onstart savedInstanceState setContentView R.layout.main Log.i TAG On Create ..... non Javadoc @see android.app.Activity#onDestroy @Override protected void onDestroy super.onDestroy Log.i TAG On Destroy ..... non Javadoc @see android.app.Activity#onPause.. R.layout.main Log.i TAG On Create ..... non Javadoc @see android.app.Activity#onDestroy @Override protected void onDestroy super.onDestroy Log.i TAG On Destroy ..... non Javadoc @see android.app.Activity#onPause @Override protected void onPause.. Log.i TAG On Create ..... non Javadoc @see android.app.Activity#onDestroy @Override protected void onDestroy super.onDestroy Log.i TAG On Destroy ..... non Javadoc @see android.app.Activity#onPause @Override protected void onPause super.onPause..
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