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2014/10/16 ¤W¤È 08:22:11
android Programming Glossary: reasonsUnderstanding Fragment's setRetainInstance(boolean) http://stackoverflow.com/questions/11182180/understanding-fragments-setretaininstanceboolean fragments on the back stack There are probably multiple reasons why it's not supported but the most obvious reason to me is..
Jelly Bean DatePickerDialog — is there a way to cancel? http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel source . Original answer kept for historical and didactic reasons Note I'm using a temporary workaround. See end of answer. Bug..
How ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works I do not understand why this is happening. One of the main reasons I am making this question is to help others who probably don't..
How to create a file in Android? http://stackoverflow.com/questions/1239026/how-to-create-a-file-in-android your file from others and This is done for security reasons. We chose MODE_WORLD_READABLE because we have nothing to hide.. method the ActivityContext provides. Again for security reasons with openFileInput ... FileInputStream fIn openFileInput samplefile.txt..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps even in the official Google Maps app . I understand the reasons why they can't just make your views live in the InfoWindows..
How to disable orientation change in Android? http://stackoverflow.com/questions/1512045/how-to-disable-orientation-change-in-android isn't a good idea now. See this answer by hackbod for reasons http stackoverflow.com a 5336057 84021 Add android configChanges..
Android kernel compile and test with Android Emulator http://stackoverflow.com/questions/1809774/android-kernel-compile-and-test-with-android-emulator source was removed from the default manifest for two reasons as I take it. One is that it takes a lot of bandwith and diskspace..
Detect application heap size in Android http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android if an onStop onResume cycle occurs. In my case for reasons of performance I'm limiting my app to devices running 2.2 and..
Change the background color of the options menu http://stackoverflow.com/questions/2944244/change-the-background-color-of-the-options-menu behavior if it has to fail. There are many legitimate reasons why one may need to control the look of Options menus typically..
How to load a Java class dynamically on android/dalvik? http://stackoverflow.com/questions/3022454/how-to-load-a-java-class-dynamically-on-android-dalvik to be possible. If it is not possible can anyone provide reasons why this is not possible java android classloader dalvik ..
Android: keeping a background service alive (preventing process death) http://stackoverflow.com/questions/3856767/android-keeping-a-background-service-alive-preventing-process-death an app that monitors accelerometer activity for various reasons while the user sleeps with his or her phone device on the bed...
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 thumbnail generation that are nice to save for performance reasons but not critical to your activity functioning if they need to..
Enable GPS programatically like Tasker http://stackoverflow.com/questions/4721449/enable-gps-programatically-like-tasker answer is always the same You can't for security privacy reasons you have to forward to location preferences screen and let the..
getApplication() vs. getApplicationContext() http://stackoverflow.com/questions/5018545/getapplication-vs-getapplicationcontext a semantic meaning and may also be due to historical reasons. Although in current Android Activity and Service implementations..
How to save SMS to inbox in android? http://stackoverflow.com/questions/642076/how-to-save-sms-to-inbox-in-android
Problem to load flv video in webview http://stackoverflow.com/questions/6596243/problem-to-load-flv-video-in-webview folder is off limits to the embedded plugin for security reasons. if Environment.getExternalStorageState .equals Environment.MEDIA_MOUNTED..
Handler vs AsyncTask vs Thread http://stackoverflow.com/questions/6964011/handler-vs-asynctask-vs-thread you should use new thread You can google for it. Many many reasons. So what is the difference AsyncTask and Handler are written..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables This first claim is incorrect. There are two main reasons for this. 1 The Application class provides a better lifetime..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context Ms. Hackborn also agrees with this position . Here are reasons why not to use getApplicationContext wherever you go It's not..
Understanding Fragment's setRetainInstance(boolean) http://stackoverflow.com/questions/11182180/understanding-fragments-setretaininstanceboolean Fragment s will also be destroyed. Why doesn't it work with fragments on the back stack There are probably multiple reasons why it's not supported but the most obvious reason to me is that the Activity holds a reference to the FragmentManager and..
Jelly Bean DatePickerDialog — is there a way to cancel? http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel previous Android versions not plagued by this bug see class source . Original answer kept for historical and didactic reasons Note I'm using a temporary workaround. See end of answer. Bug source OK looks like it's indeed a bug and someone else already..
How ListView's recycling mechanism works http://stackoverflow.com/questions/11945563/how-listviews-recycling-mechanism-works trying to get the hang of using ListView and GridView so I do not understand why this is happening. One of the main reasons I am making this question is to help others who probably don't know about ListView and GridView's recycling View or the..
How to create a file in Android? http://stackoverflow.com/questions/1239026/how-to-create-a-file-in-android the openFileOutput method the ActivityContext provides to protect your file from others and This is done for security reasons. We chose MODE_WORLD_READABLE because we have nothing to hide in our file FileOutputStream fOut openFileOutput samplefile.txt.. Reading the file back... We have to use the openFileInput method the ActivityContext provides. Again for security reasons with openFileInput ... FileInputStream fIn openFileInput samplefile.txt InputStreamReader isr new InputStreamReader fIn..
Google maps api v2 custom infowindow like in original android google maps http://stackoverflow.com/questions/14123243/google-maps-api-v2-custom-infowindow-like-in-original-android-google-maps such a common design pattern moreover this pattern is used even in the official Google Maps app . I understand the reasons why they can't just make your views live in the InfoWindows this would probably kill performance when moving and scrolling..
How to disable orientation change in Android? http://stackoverflow.com/questions/1512045/how-to-disable-orientation-change-in-android idea in 2009 when I first answered the question and it really isn't a good idea now. See this answer by hackbod for reasons http stackoverflow.com a 5336057 84021 Add android configChanges keyboardHidden orientation to your AndroidManifest.xml...
Android kernel compile and test with Android Emulator http://stackoverflow.com/questions/1809774/android-kernel-compile-and-test-with-android-emulator arm kernel folder and the source code is not included. The kernel source was removed from the default manifest for two reasons as I take it. One is that it takes a lot of bandwith and diskspace for a platform component that most people will not work..
Detect application heap size in Android http://stackoverflow.com/questions/2630158/detect-application-heap-size-in-android state so that the user's experience is virtually uninterrupted if an onStop onResume cycle occurs. In my case for reasons of performance I'm limiting my app to devices running 2.2 and above and that means that almost all devices running my app..
Change the background color of the options menu http://stackoverflow.com/questions/2944244/change-the-background-color-of-the-options-menu We want a solution that fails gracefully back to the default behavior if it has to fail. There are many legitimate reasons why one may need to control the look of Options menus typically to match a visual style for the rest of the app so I won't..
How to load a Java class dynamically on android/dalvik? http://stackoverflow.com/questions/3022454/how-to-load-a-java-class-dynamically-on-android-dalvik me if this is possible in some other way or not supposed to be possible. If it is not possible can anyone provide reasons why this is not possible java android classloader dalvik share improve this question There's an example of DexClassLoader..
Android: keeping a background service alive (preventing process death) http://stackoverflow.com/questions/3856767/android-keeping-a-background-service-alive-preventing-process-death Service implements SensorEventListener Essentially I am making an app that monitors accelerometer activity for various reasons while the user sleeps with his or her phone device on the bed. This is a long running service that MUST NOT be killed during..
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 nonconfiguration data was for optimizing things like thumbnail generation that are nice to save for performance reasons but not critical to your activity functioning if they need to be redone it's not a substitute for properly saving and restoring..
Enable GPS programatically like Tasker http://stackoverflow.com/questions/4721449/enable-gps-programatically-like-tasker on android has been discussed many times and the answer is always the same You can't for security privacy reasons you have to forward to location preferences screen and let the user enable disable it. I understand that however I recently..
getApplication() vs. getApplicationContext() http://stackoverflow.com/questions/5018545/getapplication-vs-getapplicationcontext this question Very interesting question. I think it's mainly a semantic meaning and may also be due to historical reasons. Although in current Android Activity and Service implementations getApplication and getApplicationContext return the same..
How to save SMS to inbox in android? http://stackoverflow.com/questions/642076/how-to-save-sms-to-inbox-in-android
Problem to load flv video in webview http://stackoverflow.com/questions/6596243/problem-to-load-flv-video-in-webview located on the sdcard. My only conclusion is that the assets folder is off limits to the embedded plugin for security reasons. if Environment.getExternalStorageState .equals Environment.MEDIA_MOUNTED Log.d TAG No SDCARD else webView.loadUrl file..
Handler vs AsyncTask vs Thread http://stackoverflow.com/questions/6964011/handler-vs-asynctask-vs-thread by Thread t Thread.currentThread int id t.getId And why you should use new thread You can google for it. Many many reasons. So what is the difference AsyncTask and Handler are written in Java internally use a Thread so everything you can do with..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables from Application. It is no different than making a singleton... This first claim is incorrect. There are two main reasons for this. 1 The Application class provides a better lifetime guarantee for an application developer it is guaranteed to..
When to call activity context OR application context? http://stackoverflow.com/questions/7298731/when-to-call-activity-context-or-application-context using a custom Application object and found it to be painful. Ms. Hackborn also agrees with this position . Here are reasons why not to use getApplicationContext wherever you go It's not a complete Context supporting everything that Activity does...
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