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WakeLock 扩展：保持设备唤醒扩展，防止系统休眠和电池优化 · App Inventor 2 中文网
... 最佳实践
技术说明
Android 系统限制
唤醒锁类型
常见问题
Q: 为什么在 Companion 中无法使用？
Q: 如何处理电池优化？
Q: 使用唤醒锁会大量...
Problems with Android Fragment back stack
I've got a massive problem with the way the android fragment backstack seems to work and would be most grateful for any help that is offered.
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Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
...e method getBaseContext() is only relevant when you have a ContextWrapper.
Android provides a ContextWrapper class that is created around an existing Context using:
ContextWrapper wrapper = new ContextWrapper(context);
The benefit of using a ContextWrapper is that it lets you “modify behavior w...
Activity has leaked window that was originally added
...an Activity.
[EDIT]
This question is one of the top search on google for android developer,
therefore Adding few important points from comments, which might be more helpful for future investigator without going in depth of comment conversation.
Answer 1 :
You're trying to show a Dialog after...
ViewPager and fragments — what's the right way to store fragment's state?
...y called when a fragment for that position does not exist. After rotating, Android will notice that it already created/saved a fragment for this particular position and so it simply tries to reconnect with it with FragmentManager.findFragmentByTag(), instead of creating a new one. All of this comes ...
Hex representation of a color with alpha channel?
...tures to use this syntax. See Chromium Issue 618472 and Webkit bug 150853.
Android Apps that target Android P or newer can use this syntax
Opera supports this syntax in Opera 52 (or Opera 39 when experimental web features are enabled).
IE 11 and EdgeHTML 18 (Edge 44) do not support this syntax. Chro...
How to set the title of DialogFragment?
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This solutions is also useful for xamarin.android
– Shittu Joseph Olugbenga
Dec 9 '14 at 10:53
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What is the main purpose of setTag() getTag() methods of View?
...an do that using the view.getId() too. is not it ?
– Android Killer
Sep 25 '12 at 8:14
51
@Androi...
Disable double-tap “zoom” option in browser on touch devices
...nal non-standard gestures such as double-tap to zoom.
This value works on Android and on iOS.
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Add padding on view programmatically
I am deveoping Android v2.2 app.
10 Answers
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