activity

在自定义View的代码里面，我们可能启动了一个Handler延时操作一个信息，但是这个时候我们关闭了Activity，但是Handler并没有释放掉，延时的操作还是会执行的，并没有停止， Handler如果在Activity里面可以在onDestory中释放 在View中有没有类似的方法呢。 View的生命周期 protected void onAttachedToWindow() View初次创建时调用 protected void onDetachedFromWindow() View销毁时调用 具体来说 View是与Activity绑定的，Acitivty onCreate(), onDesoty()和View中onAttachedToWindow(),onDetachedFromWindow()的方法的顺序如下： 来源： oschina 链接： https://my.oschina.net/u/1175746/blog/598365

Activity not started, its current task has been brought to the front的解决办法 2011-05-08 19:36 在编译NDK程序时，由于修改了一下C++代码，用Cygwin重新编译后，然后在eclipse中运行程序时， console输出界面显示 Warning:Activity not started, its current task has been brought to the front 这时候发现模拟器上显示的内容还是原来的； 对于这个问题具体原因还不是很清楚，但在调式的时候发现，这样做可以解决这个问题；首先在Package Explorer中找到要运行的程序，然后点击右键，选中 refresh， 然后再选中run as -----> android application，最后解决了问题； 对比没有经过 refresh 和 经过 refresh 这步， 观察console输出时，发现两者有不同的部分 以下是经过 refresh 这步在console输出的信息 [2011-05-08 19:13:11 - HelloWjr] Android Launch! [2011-05-08 19:13:11 - HelloWjr] adb is running normally. [2011-05-08 19

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have an Activity and Service that work together in my application. I've configured the service as a remote service (implemented AIDL) so it will keep running even when the Activity isn't visible. The service is responsible for polling a server for data and sending alert notifications when certain criteria are met. I do not want the Service to send these notifications when the Activity is visible. Is there a way for the Service to know the status of any particular activity? Particularly an activity that is bound to it? updated with manifest

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: EDIT : So apparently this has nothing to do with multiple activities, and this has something to do with the encoding of the video file. I will try to simplify the question: I have a MediaPlayer object in a paused state, when I call mediaPlayer.getCurrentPosition() I get a result which is accurate. When I call mediaPlayer.setSurface() (using a different surface) followed by mediaPlayer.play() on this object the video is played in a different position than the one returned by getCurrentPosition(). I am testing on API >= ICE_CREAM_SANDWICH.

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have an application with three tabs. Each tab has its own layout .xml file. The main.xml has its own map fragment. It's the one that shows up when the application first launches. Everything works fine except for when I change between tabs. If I try to switch back to the map fragment tab, I get this error. Switching to and between other tabs works just fine. What could be wrong here? This is my main class and my main.xml, as well as a relevant class that I use ( you will also find the error log at the bottom ) main class package com.nfc

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I can successfully connect to facebook and get friendlist. All connections are OK. But when I delete data of Facebook(through settings->Applications) and my app's, a login problem occurs. [SDK 3.5] Launch my app Make a facebook connection Facebook asks for username and Password, enter them Wait a little It shows Permission screen that asks for basic user info and error occurs:" Your application stop working unexpectedly. Please try again (FORCE CLOSE)" When I click Force Close, same error occurs again and again suddenly(while permission

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm working on an app and I want to integrate the Last.fm app into it. Basically, when someone is looking at an artist in my app, I would like to have a button that they can tap to open up Last.fm application with the artist's information. This intent works, but it loads a menu asking which app I would like to use (Browser or Last.fm): Intent i = new Intent(); i.setData(Uri.parse("http://last.fm/music/" + headliner)); i.setAction("android.intent.action.VIEW"); startActivity(i); However, I just want to start the Last.fm app and skip the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Is it possible to load a new activity in the background before switching the view to that activity? For example, I would like to have a slash screen activity that gets called and displays a splash screen. While this splash screen is displayed, the next activity is loaded, and when it is done loading (when it's onCreate() is finished) then the splash screen activity ends, and the new activity is displayed. I know another option would be to display the splash screen in the new activity, and use async task to load all the data before removing

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I don't understand due to which changes my app shows many dalvikVM warning messages. Even though the app seems to be working fine, there could be some potential risk. I've gone through several related questions but none helped. I didn't trim the monitor output anymore than this because I'm not sure what might be useful or not. I/SELinux: Function: selinux_android_load_priority [0], There is no sepolicy file. I/SELinux: Function: selinux_android_load_priority [1], There is no sepolicy version file. I/SELinux: Function: selinux_android_load

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead This is the error I got, I searched for solutions but I didn't find how to solve it. This is my code: styles.xml <!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <item name="colorPrimary">@color/myPrimaryColor</item> <item name="colorPrimaryDark">@color/myPrimaryDarkColor</item> <item name="colorAccent">@color