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2014/10/16 ¤W¤È 08:17:11
android Programming Glossary: keepingAndroid: Scale a Drawable or background image? http://stackoverflow.com/questions/1400782/android-scale-a-drawable-or-background-image image On a layout I want to scale the background image keeping its aspect ratio to the space allocated when the page gets created...
How to get an Android WakeLock to work? http://stackoverflow.com/questions/2039555/how-to-get-an-android-wakelock-to-work to get an Android WakeLock to work My WakeLock isn't keeping my device awake. In OnCreate I've got PowerManager pm PowerManager.. released after usage. WakeLock is an Inefficient way of keeping the screen on. Instead use the WindowManager to do the magic...
Play audio file from the assets directory http://stackoverflow.com/questions/3289038/play-audio-file-from-the-assets-directory directory Follow up question Is there a difference between keeping audio files in the assets directory and keeping them in the.. between keeping audio files in the assets directory and keeping them in the res raw directory Besides the fact that they don't..
Developing an Android Homescreen http://stackoverflow.com/questions/3467461/developing-an-android-homescreen you touch the right view without moving you finger but keeping it on the screen for less then a second the view disappears..
http://stackoverflow.com/questions/3815090/webview-and-html5-video into pull xml from the server reformat it in the app .. by keeping the story layout on the server I can control the content a bit..
Android: keeping a background service alive (preventing process death) http://stackoverflow.com/questions/3856767/android-keeping-a-background-service-alive-preventing-process-death keeping a background service alive preventing process death I have..
How to save state during orientation change in Android if the state is made of my classes? http://stackoverflow.com/questions/3915952/how-to-save-state-during-orientation-change-in-android-if-the-state-is-made-of-m retained fragments are usually the best way to handle keeping expensive to recreate data alive across activity destruction..
How to implement a view holder? http://stackoverflow.com/questions/4145602/how-to-implement-a-view-holder
Grid of images inside ScrollView http://stackoverflow.com/questions/4523609/grid-of-images-inside-scrollview you could place each image LEFT_OF the previous one keeping track of the width of each image until you run out of room on..
Static references are cleared--does Android unload classes at runtime if unused? http://stackoverflow.com/questions/5105097/static-references-are-cleared-does-android-unload-classes-at-runtime-if-unused this is happening exactly PS one can work around this by keeping global references on the single application instance instead...
http://stackoverflow.com/questions/5120185/android-sleep-standby-mode will go into sleep mode shortly thereafter if nothing is keeping it awake with a WakeLock . However there is no guarantee that..
Android BroadcastReceiver on startup http://stackoverflow.com/questions/5290141/android-broadcastreceiver-on-startup is limited to the onReceive method not the lifecycle of keeping the BroadcastReceiver checking for incoming sms. How can I make..
http://stackoverflow.com/questions/5796611/dialog-throwing-unable-to-add-window-token-null-is-not-for-an-application-wi not depend on the activities life cycle. If you plan on keeping long lived objects that need a context remember the application..
install / uninstall APKs programmatically (PackageManager vs Intents) http://stackoverflow.com/questions/6813322/install-uninstall-apks-programmatically-packagemanager-vs-intents has installed. Of course this could be achieved by simply keeping a list of installed applications. But this should not be necessary..
http://stackoverflow.com/questions/7931032/android-process-scheduling slight changes to the CPU process scheduler and time keeping algorithms. We don ™t know the history of these changes and the..
Fit image into ImageView, keep aspect ratio and then resize ImageView to image dimensions? http://stackoverflow.com/questions/8232608/fit-image-into-imageview-keep-aspect-ratio-and-then-resize-imageview-to-image-d like 250dp x 250dp with one dimension exactly 250dp and keeping the aspect ratio. Then the ImageView is resized to match the..
Android Fragments. Retaining an AsyncTask during screen rotation or configuration change http://stackoverflow.com/questions/8417885/android-fragments-retaining-an-asynctask-during-screen-rotation-or-configuratio null Reload UI state. Im doing this properly keeping the content of the UI objects not the object it self to avoid..
support FragmentPagerAdapter holds reference to old fragments http://stackoverflow.com/questions/9727173/support-fragmentpageradapter-holds-reference-to-old-fragments running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem..
In GoogleCloudMessaging API, how to handle the renewal or expiration of registration ID? http://stackoverflow.com/questions/17335572/in-googlecloudmessaging-api-how-to-handle-the-renewal-or-expiration-of-registra changes as mentioned under Advanced Topics under heading Keeping the Registration State in Sync Application update and Backup..
How can I refresh MediaStore on Android? http://stackoverflow.com/questions/3300137/how-can-i-refresh-mediastore-on-android with a valid data field and let me know list.add Keeping cursor.getString 2 id i else delete any play lists with a..
Multiple screen resolutions/aspect ratios (games) http://stackoverflow.com/questions/7061258/multiple-screen-resolutions-aspect-ratios-games seem possible so far. Does anyone have a better approach Keeping in mind that it's for games on phones only android screen resolution..
Keeping a GPS service alive and optimizing battery life http://stackoverflow.com/questions/7872863/keeping-a-gps-service-alive-and-optimizing-battery-life a GPS service alive and optimizing battery life I must build..
Android: upgrading DB version and adding new table http://stackoverflow.com/questions/8133597/android-upgrading-db-version-and-adding-new-table they skip an update or 12 Hopefully this makes sense. 5. Keeping your revision numbers under control while developing And finally.....
EditText setError() with icon but without Popup message http://stackoverflow.com/questions/8985295/edittext-seterror-with-icon-but-without-popup-message where R.drawable.ic_error http i.stack.imgur.com 1luXA.png Keeping text null solves the problem But if we keep only null in setError..
How to set active item in the Action Bar drop-down navigation? http://stackoverflow.com/questions/9039045/how-to-set-active-item-in-the-action-bar-drop-down-navigation rotation first element of this list is being activated. Keeping fragment content wasn't difficult but I don't know how to set..
Android: Scale a Drawable or background image? http://stackoverflow.com/questions/1400782/android-scale-a-drawable-or-background-image Scale a Drawable or background image On a layout I want to scale the background image keeping its aspect ratio to the space allocated when the page gets created. Anyone have any idea how to do this I am using layout.setBackgroundDrawable..
How to get an Android WakeLock to work? http://stackoverflow.com/questions/2039555/how-to-get-an-android-wakelock-to-work to get an Android WakeLock to work My WakeLock isn't keeping my device awake. In OnCreate I've got PowerManager pm PowerManager getSystemService Context.POWER_SERVICE mWakeLock pm.newWakeLock.. issues in your coding. WakeLock hogs battery heavily if not released after usage. WakeLock is an Inefficient way of keeping the screen on. Instead use the WindowManager to do the magic. The following one line will suffice the WakeLock. The WakeLock..
Play audio file from the assets directory http://stackoverflow.com/questions/3289038/play-audio-file-from-the-assets-directory Is there a better way to play audio files from the assets directory Follow up question Is there a difference between keeping audio files in the assets directory and keeping them in the res raw directory Besides the fact that they don't get ids if.. the assets directory Follow up question Is there a difference between keeping audio files in the assets directory and keeping them in the res raw directory Besides the fact that they don't get ids if they are in the assets directory. If I move the..
Developing an Android Homescreen http://stackoverflow.com/questions/3467461/developing-an-android-homescreen It works for me so far but I am facing a strange problem. When you touch the right view without moving you finger but keeping it on the screen for less then a second the view disappears and shows the left view. Here is my code public class MainActivity..
http://stackoverflow.com/questions/3815090/webview-and-html5-video nor does shouldOverrideUrlLoading.. I would rather not get into pull xml from the server reformat it in the app .. by keeping the story layout on the server I can control the content a bit better without forcing people to keep updating an app. So..
Android: keeping a background service alive (preventing process death) http://stackoverflow.com/questions/3856767/android-keeping-a-background-service-alive-preventing-process-death keeping a background service alive preventing process death I have a service that is defined as public class SleepAccelerometerService..
How to save state during orientation change in Android if the state is made of my classes? http://stackoverflow.com/questions/3915952/how-to-save-state-during-orientation-change-in-android-if-the-state-is-made-of-m On newer versions of Android and with the compatibility library retained fragments are usually the best way to handle keeping expensive to recreate data alive across activity destruction creation. And as Dianne pointed out retaining nonconfiguration..
How to implement a view holder? http://stackoverflow.com/questions/4145602/how-to-implement-a-view-holder
Grid of images inside ScrollView http://stackoverflow.com/questions/4523609/grid-of-images-inside-scrollview or RelativeLayout . For example if you extend RelativeLayout you could place each image LEFT_OF the previous one keeping track of the width of each image until you run out of room on that row and then start the next row by placing the first..
Static references are cleared--does Android unload classes at runtime if unused? http://stackoverflow.com/questions/5105097/static-references-are-cleared-does-android-unload-classes-at-runtime-if-unused singletons wouldn't work on any JVM right Any idea why this is happening exactly PS one can work around this by keeping global references on the single application instance instead. That has proven to be reliable when one must keep on object..
http://stackoverflow.com/questions/5120185/android-sleep-standby-mode sleep mode per se. That is the screen turning off. The device will go into sleep mode shortly thereafter if nothing is keeping it awake with a WakeLock . However there is no guarantee that within a millisecond of you pressing that button and the screen..
Android BroadcastReceiver on startup http://stackoverflow.com/questions/5290141/android-broadcastreceiver-on-startup that is mentioned in the documentation is that the lifecycle is limited to the onReceive method not the lifecycle of keeping the BroadcastReceiver checking for incoming sms. How can I make this persistent Many thanks Steve android share improve..
http://stackoverflow.com/questions/5796611/dialog-throwing-unable-to-add-window-token-null-is-not-for-an-application-wi will live as long as your application is alive and does not depend on the activities life cycle. If you plan on keeping long lived objects that need a context remember the application object. You can obtain it easily by calling Context.getApplicationContext..
install / uninstall APKs programmatically (PackageManager vs Intents) http://stackoverflow.com/questions/6813322/install-uninstall-apks-programmatically-packagemanager-vs-intents and it needs to keep track of what applications it has installed. Of course this could be achieved by simply keeping a list of installed applications. But this should not be necessary It should be the responsibility of the PackageManager..
http://stackoverflow.com/questions/7931032/android-process-scheduling scheduler Scheduler 5 files The Android kernel also contains slight changes to the CPU process scheduler and time keeping algorithms. We don ™t know the history of these changes and the impact was not evident based on a cursory examination. Process..
Fit image into ImageView, keep aspect ratio and then resize ImageView to image dimensions? http://stackoverflow.com/questions/8232608/fit-image-into-imageview-keep-aspect-ratio-and-then-resize-imageview-to-image-d This code scales Drawable of an ImageView to stay in a square like 250dp x 250dp with one dimension exactly 250dp and keeping the aspect ratio. Then the ImageView is resized to match the dimensions of the scaled image. The code is used in an activity...
Android Fragments. Retaining an AsyncTask during screen rotation or configuration change http://stackoverflow.com/questions/8417885/android-fragments-retaining-an-asynctask-during-screen-rotation-or-configuratio savedInstanceState SETUP UI OBJECTS if savedInstanceState null Reload UI state. Im doing this properly keeping the content of the UI objects not the object it self to avoid memory leaks. public class LoginThread extends AsyncTask..
support FragmentPagerAdapter holds reference to old fragments http://stackoverflow.com/questions/9727173/support-fragmentpageradapter-holds-reference-to-old-fragments android fragments share improve this question You are running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem and are trying to use those references independently of the..
In GoogleCloudMessaging API, how to handle the renewal or expiration of registration ID? http://stackoverflow.com/questions/17335572/in-googlecloudmessaging-api-how-to-handle-the-renewal-or-expiration-of-registra that there are other two scenarios when the registration ID changes as mentioned under Advanced Topics under heading Keeping the Registration State in Sync Application update and Backup restore. I am already handling them on opening of the app...
How can I refresh MediaStore on Android? http://stackoverflow.com/questions/3300137/how-can-i-refresh-mediastore-on-android 0 int l cursor.getString 1 .length if l 0 keep any playlists with a valid data field and let me know list.add Keeping cursor.getString 2 id i else delete any play lists with a data length of '0' Uri uri ContentUris.withAppendedId MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI..
Multiple screen resolutions/aspect ratios (games) http://stackoverflow.com/questions/7061258/multiple-screen-resolutions-aspect-ratios-games aspect ratios my application can handle but that doesn't seem possible so far. Does anyone have a better approach Keeping in mind that it's for games on phones only android screen resolution aspect ratio share improve this question I can't..
Keeping a GPS service alive and optimizing battery life http://stackoverflow.com/questions/7872863/keeping-a-gps-service-alive-and-optimizing-battery-life a GPS service alive and optimizing battery life I must build an application with a GPS tracker running during about a day...
Android: upgrading DB version and adding new table http://stackoverflow.com/questions/8133597/android-upgrading-db-version-and-adding-new-table base to upgrade each time you release an update. Sometimes they skip an update or 12 Hopefully this makes sense. 5. Keeping your revision numbers under control while developing And finally... calling adb uninstall yourpackagename totally uninstalls..
EditText setError() with icon but without Popup message http://stackoverflow.com/questions/8985295/edittext-seterror-with-icon-but-without-popup-message .length 6 et.setError null else et.setError errorIcon where R.drawable.ic_error http i.stack.imgur.com 1luXA.png Keeping text null solves the problem But if we keep only null in setError null this won't show the validation error it should be..
How to set active item in the Action Bar drop-down navigation? http://stackoverflow.com/questions/9039045/how-to-set-active-item-in-the-action-bar-drop-down-navigation an ActionBar with drop down list navigation and after every rotation first element of this list is being activated. Keeping fragment content wasn't difficult but I don't know how to set active list item. Here is the definition of ActionBar getActionBar..
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