java.lang.IllegalArgumentException: View not attached to window manager

本文探讨了在Android应用中分屏模式下显示ProgressDialog可能导致的崩溃问题。当从分屏模式转换为全屏模式时,若ProgressDialog未正确处理,会导致not attached to window manager异常。文章提供了详细的错误日志,并提出了解决方案:在Activity销毁前dismiss对话框。

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最近遇到一个问题,在分屏的情况下弹出来一个ProgressDialog,在ProgressDialog还没有消失的时候,取消分屏,变成全屏,这时候就出现了crash,log如下:

--------- beginning of crash
06-28 15:29:32.693  5522  5522 E AndroidRuntime: FATAL EXCEPTION: main
06-28 15:29:32.693  5522  5522 E AndroidRuntime: Process: com.android.settings, PID: 5522
06-28 15:29:32.693  5522  5522 E AndroidRuntime: java.lang.IllegalArgumentException: View=DecorView@130e6b6[正在恢复网络设置] not attached to window manager
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:518)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:427)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:124)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.app.Dialog.dismissDialog(Dialog.java:372)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.app.Dialog.dismiss(Dialog.java:355)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at com.android.settings.ResetNetWork$ResetNetTask.onPostExecute(ResetNetWork.java:237)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at com.android.settings.ResetNetWork$ResetNetTask.onPostExecute(ResetNetWork.java:234)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.os.AsyncTask.finish(AsyncTask.java:667)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.os.AsyncTask.-wrap1(AsyncTask.java)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:684)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.os.Handler.dispatchMessage(Handler.java:102)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.os.Looper.loop(Looper.java:154)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at android.app.ActivityThread.main(ActivityThread.java:6259)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at java.lang.reflect.Method.invoke(Native Method)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:891)
06-28 15:29:32.693  5522  5522 E AndroidRuntime: 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:781)
06-28 15:29:32.695  3130  7896 W ActivityManager:   Force finishing activity com.android.settings/.SubSettings

java.lang.IllegalArgumentException: View=DecorView@130e6b6[正在恢复网络设置] not attached to window manager,不难理解,这句话是说当前的decorview还没有附到

window上,为什么会出现这种情况呢,在网上查了一下果然有很多人遇到过这个问题,结合我这个bug的情况,原因就是在取消分屏的时候,Activity强制销毁并重新启动,但是此时
dialog还没有消失,在它消失的时候,之前它依附的Activity已经不存在了,所以才会not attached to window manager。
解决方法也很简单,在Activity销毁的时候也就是onDestory的时候把dialog dismiss就可以了。


2025-07-31 18:31:004,tiny-log,[1753957864341], [main]app crash: java.lang.RuntimeException: Unable to resume activity {com.mercusys.halo/com.tplink.mercusys.component.dashboard.view.MainActivity}: java.lang.IllegalArgumentException: View=com.android.internal.policy.DecorView{fc3d391 V.ED..... R.....ID 0,0-1024,651}[SystemTimeMerActivity] not attached to window manager at android.app.ActivityThread.performResumeActivity(ActivityThread.java:5467) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:5500) at android.app.servertransaction.ResumeActivityItem.execute(ResumeActivityItem.java:73) at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:63) at android.app.servertransaction.TransactionExecutor.executeLifecycleItem(TransactionExecutor.java:169) at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:101) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:80) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2773) at android.os.Handler.dispatchMessage(Handler.java:109) at android.os.Looper.loopOnce(Looper.java:232) at android.os.Looper.loop(Looper.java:317) at android.app.ActivityThread.main(ActivityThread.java:8934) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:591) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:911) Caused by: java.lang.IllegalArgumentException: View=com.android.internal.policy.DecorView{fc3d391 V.ED..... R.....ID 0,0-1024,651}[SystemTimeMerActivity] not attached to window manager at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:587) at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:494) at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:216) at android.app.Dialog.dismissDialog(Dialog.java:404) at android.app.Dialog.dismiss(Dialog.java:386) at androidx.appcompat.app.AppCompatDialog.dismiss(AppCompatDialog.java:1) at com.tplink.mercusys.component.core.lifecycle.r0.onUnregister(MeshNetworkConnectionObserver.java:21) at com.tplink.mercusys.base.lifecycle.ApplicationStateReceiverDelegate.registerMeshConnectObserver(ApplicationStateReceiverDelegate.java:15) at com.tplink.mercusys.base.lifecycle.ApplicationStateReceiverDelegate.registerMeshNetworkObserver(ApplicationStateReceiverDelegate.java:1) at com.tplink.mercusys.component.dashboard.viewmodel.BaseDashboardViewModel.x6(BaseDashboardViewModel.java:15) at com.tplink.mercusys.component.dashboard.view.NetworkTabFragment.Bg(NetworkTabFragment.java:89) at com.tplink.mercusys.component.dashboard.view.NetworkTabFragment.Ve(NetworkTabFragment.java:54) at com.tplink.apps.architecture.BaseMvvmFragment.onViewCreated(BaseMvvmFragment.kt:45) at androidx.fragment.app.Fragment.performViewCreated(Fragment.java:5) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:272) at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:125) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:231) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:82) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:22) at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:39) at androidx.fragment.app.FragmentManager.dispatchViewCreated(FragmentManager.java:2) at androidx.fragment.app.Fragment.performViewCreated(Fragment.java:10) at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:272) at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:125) at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:231) at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:82) at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:22) at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:39) at androidx.fragment.app.FragmentManager.dispatchResume(FragmentManager.java:12) at androidx.fragment.app.FragmentController.dispatchResume(FragmentController.java:5) at androidx.fragment.app.FragmentActivity.onResumeFragments(FragmentActivity.java:10) at androidx.fragment.app.FragmentActivity.onPostResume(FragmentActivity.java:4) at androidx.appcompat.app.AppCompatActivity.onPostResume(AppCompatActivity.java:1) at android.app.Activity.performResume(Activity.java:9266) at android.app.ActivityThread.performResumeActivity(ActivityThread.java:5457) ... 14 more 崩溃分析
08-01
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