java.lang.IllegalStateException: FragmentManager is already executing transactions
        at androidx.fragment.app.FragmentManagerImpl.ensureExecReady(FragmentManagerImpl.java:14)
        at androidx.fragment.app.FragmentManagerImpl.execSingleAction(FragmentManagerImpl.java:2)
        at androidx.fragment.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:2)

 

原因 由于在Fragment中调用了

FragmentManager is already executing transactions_android

 方法导致的 

解决方案替换为 


getChildFragmentManager


即可

FragmentManager fm = getChildFragmentManager();
        FragmentTransaction fragmentTransaction = fm.beginTransaction();