在 google play 上获取 java.lang.IllegalStateException 错误崩溃摘要

Question

谷歌播放控制台崩溃详细信息给了我这个错误

java.lang.Illeg`enter code here`alStateException: 
  at androidx.fragment.app.FragmentManagerImpl.addFragment (FragmentManagerImpl.java:1379)
  at androidx.fragment.app.BackStackRecord.executePopOps (BackStackRecord.java:465)
  at androidx.fragment.app.FragmentManagerImpl.executeOps (FragmentManagerImpl.java:2076)
  at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether (FragmentManagerImpl.java:1869)
  at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute (FragmentManagerImpl.java:1824)
  at androidx.fragment.app.FragmentManagerImpl.popBackStackImmediate (FragmentManagerImpl.java:310)
  at androidx.fragment.app.FragmentManagerImpl.popBackStackImmediate (FragmentManagerImpl.java:253)
  at androidx.fragment.app.FragmentManagerImpl.handleOnBackPressed (FragmentManagerImpl.java:233)
  at androidx.fragment.app.FragmentManagerImpl$1.handleOnBackPressed (FragmentManagerImpl.java:108)
  at androidx.activity.OnBackPressedDispatcher.onBackPressed (OnBackPressedDispatcher.java:189)
  at androidx.activity.ComponentActivity.onBackPressed (ComponentActivity.java:286)
  at android.app.Activity.onKeyUp (Activity.java:3252)
  at android.view.KeyEvent.dispatch (KeyEvent.java:2772)
  at android.app.Activity.dispatchKeyEvent (Activity.java:3559)
  at androidx.core.app.ComponentActivity.superDispatchKeyEvent (ComponentActivity.java:122)
  at androidx.core.view.KeyEventDispatcher.dispatchKeyEvent (KeyEventDispatcher.java:84)
  at androidx.core.app.ComponentActivity.dispatchKeyEvent (ComponentActivity.java:140)
  at androidx.appcompat.app.AppCompatActivity.dispatchKeyEvent (AppCompatActivity.java:569)
  at androidx.appcompat.view.WindowCallbackWrapper.dispatchKeyEvent (WindowCallbackWrapper.java:59)
  at androidx.appcompat.app.AppCompatDelegateImpl$AppCompatWindowCallback.dispatchKeyEvent (AppCompatDelegateImpl.java:3054)
  at com.android.internal.policy.DecorView.dispatchKeyEvent (DecorView.java:427)
  at android.view.ViewRootImpl$ViewPostImeInputStage.processKeyEvent (ViewRootImpl.java:5660)
  at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess (ViewRootImpl.java:5528)
  at android.view.ViewRootImpl$InputStage.deliver (ViewRootImpl.java:4980)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext (ViewRootImpl.java:5033)
  at android.view.ViewRootImpl$InputStage.forward (ViewRootImpl.java:4999)
  at android.view.ViewRootImpl$AsyncInputStage.forward (ViewRootImpl.java:5154)
  at android.view.ViewRootImpl$InputStage.apply (ViewRootImpl.java:5007)
  at android.view.ViewRootImpl$AsyncInputStage.apply (ViewRootImpl.java:5211)
  at android.view.ViewRootImpl$InputStage.deliver (ViewRootImpl.java:4980)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext (ViewRootImpl.java:5033)
  at android.view.ViewRootImpl$InputStage.forward (ViewRootImpl.java:4999)
  at android.view.ViewRootImpl$InputStage.apply (ViewRootImpl.java:5007)
  at android.view.ViewRootImpl$InputStage.deliver (ViewRootImpl.java:4980)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext (ViewRootImpl.java:5033)
  at android.view.ViewRootImpl$InputStage.forward (ViewRootImpl.java:4999)
  at android.view.ViewRootImpl$AsyncInputStage.forward (ViewRootImpl.java:5187)
  at android.view.ViewRootImpl$ImeInputStage.onFinishedInputEvent (ViewRootImpl.java:5351)
  at android.view.inputmethod.InputMethodManager$PendingEvent.run (InputMethodManager.java:2783)
  at android.view.inputmethod.InputMethodManager.invokeFinishedInputEventCallback (InputMethodManager.java:2291)
  at android.view.inputmethod.InputMethodManager.finishedInputEvent (InputMethodManager.java:2282)
  at android.view.inputmethod.InputMethodManager$ImeInputEventSender.onInputEventFinished (InputMethodManager.java:2758)
  at android.view.InputEventSender.dispatchInputEventFinished (InputEventSender.java:141)
  at android.os.MessageQueue.nativePollOnce (Native Method)
  at android.os.MessageQueue.next (MessageQueue.java:386)
  at android.os.Looper.loop (Looper.java:175)
  at android.app.ActivityThread.main (ActivityThread.java:7625)
  at java.lang.reflect.Method.invoke (Native Method)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:524)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:987)

我使用一个带有框架布局的活动并根据导航栏在此框架布局上加载多个片段 在我的测试设备上看不到问题只需获取此堆栈跟踪任何人都可以提供帮助 我使用这段代码在片段之间切换

    FragmentManager manager = getSupportFragmentManager();
                FragmentTransaction ft = manager.beginTransaction();
                ft.setCustomAnimations(R.anim.animation_fade_in, R.anim.fade_out);
                assert selectedFragment != null;
                ft.replace(R.id.fragment_container, selectedFragment).commit();

Answer 1

使用自定义动画可能会导致错误。这就是为什么我在评论部分问你有关动画的问题。因为一个月前我也修复了同样的错误。在片段之间导航太快会重现此错误。删除以下行。

 setCustomAnimations(R.anim.animation_fade_in, R.anim.fade_out);

其次，我不建议使用断言，使用 if(frag!=null) 进行 null 检查。