安卓，null expection,说FragmentManagerImpl什么的，求解决

NullPointerException: FragmentManagerImpl.execPendingActions(FragmentManager.java:1410)up vote 1 down vote favorite So, i have a fragment which uses Maps ...

java.lang.NullPointerException at android.support.v4.app.FragmentManagerImpl.saveFragmentBasicState(FragmentManager.java:1576) at android.support.v4.app.Fragm...

if (f.mSavedViewState != null) { if (result == null) { result = new Bundle(); } result.putSparseParcelableArray( FragmentManagerImpl.VIEW_STATE_TA...

(MapzFragment.java:68) 12-15 01:25:10.004: E/AndroidRuntime(24087): at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:874) 12-15 ...

java.lang.NullPointerException at android.support.v4.app.FragmentManagerImpl.saveFragmentBasicState(FragmentManager.java:1576) at android.support.v4.app.Fragm...

Attempt to write to field 'android.support.v4.app.FragmentManagerImpl android.support.v4.app.Fragment.mFragmentManager' on a null object reference...

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android...android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:...

你可以先声明一下(Button button),把初始化(button=(Button)findViewById(R.id.button);)写到setContentView(R.layout.fragment_main);后面即可。 提问者评价 ...

安卓:我用用返回存贮栈片段NullPointerException Tags: android android-fragments ...v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1884) ...

MapFragment.onResume(Unknown Source) at android.support.v4.app.Fragment.performResume(Fragment.java:1503) at android.support.v4.app.FragmentManagerImpl....