CODEWITHSUNDEEP
androidandroid-fragments
user2634966
user2634966

Reputation: 189

java.lang.IllegalStateException: at android.view.ViewGroup.addViewInner

App getting crash with following stack trace on some device with some OS version. I have tried some other suggestion none of them work. I don't know where exactly crash occur.

ViewGroup.java AddViewInner issue

compileSdkVersion 28
minSdkVersion 17
targetSdkVersion 28

Always Inflating Layout like below for all screen:

if (mainView == null) {
     mainView = inflater.inflate(R.layout.fragment_main, container, false);
}

Committing Fragment:

FragmentTransaction ft = fragmentManager.beginTransaction();
ft.setCustomAnimations(R.anim.fragment_slide_in_left, R.anim.fragment_slide_out_left, R.anim.fragment_slide_in_right, R.anim.fragment_slide_out_right);
ft.replace(R.id.main_content, fragment, fragment.getTagText());
ft.addToBackStack(fragment.getTagText());
ft.commit();

Crash 1:

  java.lang.IllegalStateException: 
  at android.view.ViewGroup.addViewInner (ViewGroup.java:5008)
  at android.view.ViewGroup.addView (ViewGroup.java:4833)
  at android.view.ViewGroup.addView (ViewGroup.java:4773)
  at android.view.ViewGroup.addView (ViewGroup.java:4746)
  at android.support.v4.app.FragmentManagerImpl.moveToState (FragmentManagerImpl.java:1466)
  at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState (FragmentManagerImpl.java:1784)
  at android.support.v4.app.FragmentManagerImpl.moveToState (FragmentManagerImpl.java:1852)
  at android.support.v4.app.BackStackRecord.executePopOps (BackStackRecord.java:860)
  at android.support.v4.app.FragmentManagerImpl.executeOps (FragmentManagerImpl.java:2622)
  at android.support.v4.app.FragmentManagerImpl.executeOpsTogether (FragmentManagerImpl.java:2411)
  at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute (FragmentManagerImpl.java:2366)
  at android.support.v4.app.FragmentManagerImpl.execPendingActions (FragmentManagerImpl.java:2273)
  at android.support.v4.app.FragmentManagerImpl$1.run (FragmentManagerImpl.java:733)
  at android.os.Handler.handleCallback (Handler.java:790)
  at android.os.Handler.dispatchMessage (Handler.java:99)
  at android.os.Looper.loop (Looper.java:171)
  at android.app.ActivityThread.main (ActivityThread.java:6656)
  at java.lang.reflect.Method.invoke (Method.java)
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:547)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:873)

Crash 2:

java.lang.IllegalStateException: 
  at android.view.ViewGroup.addViewInner (ViewGroup.java:5122)
  at android.view.ViewGroup.addView (ViewGroup.java:4953)
  at android.view.ViewGroup.addView (ViewGroup.java:4893)
  at android.view.ViewGroup.addView (ViewGroup.java:4866)
  at android.support.v4.app.FragmentManagerImpl.moveToState (FragmentManagerImpl.java:1466)
  at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState (FragmentManagerImpl.java:1784)
  at android.support.v4.app.FragmentManagerImpl.moveToState (FragmentManagerImpl.java:1852)
  at android.support.v4.app.BackStackRecord.executePopOps (BackStackRecord.java:860)
  at android.support.v4.app.FragmentManagerImpl.executeOps (FragmentManagerImpl.java:2622)
  at android.support.v4.app.FragmentManagerImpl.executeOpsTogether (FragmentManagerImpl.java:2411)
  at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute (FragmentManagerImpl.java:2366)
  at android.support.v4.app.FragmentManagerImpl.execPendingActions (FragmentManagerImpl.java:2273)
  at android.support.v4.app.FragmentManagerImpl$1.run (FragmentManagerImpl.java:733)
  at android.os.Handler.handleCallback (Handler.java:789)
  at android.os.Handler.dispatchMessage (Handler.java:98)
  at android.os.Looper.loop (Looper.java:164)
  at android.app.ActivityThread.main (ActivityThread.java:6940)
  at java.lang.reflect.Method.invoke (Method.java)
  at com.android.internal.os.Zygote$MethodAndArgsCaller.run (Zygote.java:327)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1374)

How to fix this crash?

Upvotes: 1

Views: 1569

Answers (1)

RadekJ
RadekJ

Reputation: 3053

Remove that null check and inflate view in onCreateView.

When you are returning old view (mainView != null) fragment tries to add it again to the view hierarchy. The exception is thrown as the old view already has a parent and cannot be added again.

source of ViewGroup.addViewInner:

    if (child.getParent() != null) {
        throw new IllegalStateException("The specified child already has a parent. " +
                "You must call removeView() on the child's parent first.");
    }

Upvotes: 1

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