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My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
...o data messages
Mobile device support:
WebSocket: iOS 4.2 and up. Some Android via Flash emulation or using Firefox for Android or Google Chrome for Android which both provide native WebSocket support.
Plugin networking: some Android. Not on iOS
HTTP *: mostly yes
Javascript usage complexity (...
Place cursor at the end of text in EditText
....post( new Runnable({... et.setSel... to get in the queue. This is because android waits to do some layout stuff until a better time by posting so if you try to setSelection before the system is finished it will undo your work.
– MinceMan
Dec 7 '13 at 18:16
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onSaveInstanceState () and onRestoreInstanceState ()
...alled. And, onCreate and onStart were NOT always called.
So it seems like Android doesn't always delete the state information even if the Activity moves to the background. However, it calls the lifecycle methods to save state just to be safe. Thus, if the state is not deleted, then Android doesn't ...
Eclipse error: 'Failed to create the Java Virtual Machine'
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I was facing the same issue while installing Android SDK with eclipse and this fixed it. Thanks !
– codingscientist
Dec 6 '13 at 12:30
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java.lang.IllegalStateException: The specified child already has a parent
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I'm sorry, I don't quite understand cuz I'm new to android.
– Zin Win Htet
Sep 5 '14 at 8:03
I...
What does this Google Play APK publish error message mean?
I'm trying to publish a new version of my Android app to Google Play and get the following error?
17 Answers
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IRXmitter红外发射器扩展 · App Inventor 2 中文网
...用程序。
功能概述
IRXmitter扩展是一个Android类ConsumerIrManager的包装器，用于发送红外信号控制家电设备：
发送单个红外信号包
支持自动重复发送
支持交替模式发送（适用于开关功能）
可配置载波频率...
Java project in Eclipse: The type java.lang.Object cannot be resolved. It is indirectly referenced f
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I had that error on an Android project, for me clicking on Android Tools -> Fix Project Properties fixed it.
– Lorenz
Aug 15 '14 at 20:00
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How do I link to Google Maps with a particular longitude and latitude?
... Both formats are called "Universal Links", even though some don't work on Android. I guess Google subscribes to multiverse theory. :-)
– Edward Brey
May 14 '19 at 13:26
add a...
Call an activity method from a fragment
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For the opposite side communication please see:developer.android.com/training/basics/fragments/…. Using the fragment's interface(which is also the safe way to do fragment->activity comm as explained above) you can call a method that's in your fragment from your activity as wel...