方向改变时与内存/线程相关的崩溃？

Question

朋友们，

onCreate() 我正在使用异步线程从 web 服务加载数据。 当线程启动时，它会在屏幕上显示进度条并加载数据。

我遇到的一个突然的问题是，当我开始显示活动进度条时，我改变手机的方向，第二个线程启动并开始运行。

应用程序崩溃。（创新目标异常之类的）。

这是日志猫，任何人都可以指导我解决这个问题的方法是什么？

代码很简单

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.searchbanks);
    threadBank = new AsyncBanks();
    threadBank.execute("","");
}




04-29 16:08:26.811: ERROR/WindowManager(430): Activity com.FindMe.SearchBanks has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44f64f98 that was originally added here
04-29 16:08:26.811: ERROR/WindowManager(430): android.view.WindowLeaked: Activity com.FindMe.SearchBanks has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@44f64f98 that was originally added here
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.view.ViewRoot.<init>(ViewRoot.java:247)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.view.Window$LocalWindowManager.addView(Window.java:424)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.Dialog.show(Dialog.java:241)
04-29 16:08:26.811: ERROR/WindowManager(430):     at com.FindMe.SearchBanks$AsyncBanks.onPreExecute(SearchBanks.java:133)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.os.AsyncTask.execute(AsyncTask.java:391)
04-29 16:08:26.811: ERROR/WindowManager(430):     at com.FindMe.SearchBanks.LoadRecords(SearchBanks.java:115)
04-29 16:08:26.811: ERROR/WindowManager(430):     at com.FindMe.SearchBanks.onCreate(SearchBanks.java:76)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.os.Looper.loop(Looper.java:123)
04-29 16:08:26.811: ERROR/WindowManager(430):     at android.app.ActivityThread.main(ActivityThread.java:4627)
04-29 16:08:26.811: ERROR/WindowManager(430):     at java.lang.reflect.Method.invokeNative(Native Method)
04-29 16:08:26.811: ERROR/WindowManager(430):     at java.lang.reflect.Method.invoke(Method.java:521)
04-29 16:08:26.811: ERROR/WindowManager(430):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-29 16:08:26.811: ERROR/WindowManager(430):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-29 16:08:26.811: ERROR/WindowManager(430):     at dalvik.system.NativeStart.main(Native Method)
04-29 16:08:28.652: ERROR/AndroidRuntime(430): java.lang.IllegalArgumentException: View not attached to window manager
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:355)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:200)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.view.Window$LocalWindowManager.removeView(Window.java:432)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.app.Dialog.dismissDialog(Dialog.java:278)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.app.Dialog.access$000(Dialog.java:71)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.app.Dialog$1.run(Dialog.java:111)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.app.Dialog.dismiss(Dialog.java:268)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at com.FindMe.SearchBanks$AsyncBanks.onPostExecute(SearchBanks.java:197)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at com.FindMe.SearchBanks$AsyncBanks.onPostExecute(SearchBanks.java:1)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.os.AsyncTask.finish(AsyncTask.java:417)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.os.AsyncTask.access$300(AsyncTask.java:127)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.os.Looper.loop(Looper.java:123)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at android.app.ActivityThread.main(ActivityThread.java:4627)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at java.lang.reflect.Method.invokeNative(Native Method)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at java.lang.reflect.Method.invoke(Method.java:521)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-29 16:08:28.652: ERROR/AndroidRuntime(430):     at dalvik.system.NativeStart.main(Native Method)

Answer 1

即使您关闭对话框以便可以重新创建它，销毁对话框的系统与您将关闭对话框的生命周期方法之间似乎也存在竞争条件。我很少收到有关在配置更改时关闭不存在的对话框的崩溃报告。

我建议捕获并忽略 Dialog.dismiss() 中的异常以处理竞争条件。这就是我所做的，它解决了我的问题。

史蒂夫@WhitneyApps

Answer 2

最后我自己得到了答案。

如何处理显示 ProgressDialog 时的方向变化？< /a>

和

如何在定向时处理 Activity变化？