exception ::键f0：index 0
不再存在片段在活动中设置FragmentStatePagerAdapter
LOG ::
Caused by: java.lang.IllegalStateException: Fragment no longer exists for key f0: index 1
at android.support.v4.app.FragmentManagerImpl.getFragment(FragmentManager.java:668)
at android.support.v4.app.FragmentStatePagerAdapter.restoreState(FragmentStatePagerAdapter.java:211)
at android.support.v4.view.ViewPager.onRestoreInstanceState(ViewPager.java:1319)
at android.view.View.dispatchRestoreInstanceState(View.java:13758)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2889)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2895)
at android.view.View.restoreHierarchyState(View.java:13736)
at android.support.v4.app.Fragment.restoreViewState(Fragment.java:468)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1094)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1248)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1230)
at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:2042)
at android.support.v4.app.FragmentController.dispatchActivityCreated(FragmentController.java:165)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:543)
at com.smartzip.smartcheckin.activity.BaseFragmentActivity.onStart(BaseFragmentActivity.java:22)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1259)
at android.app.Activity.performStart(Activity.java:6026)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2302)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.access$800(ActivityThread.java:155)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5343)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:702)
答案 0 :(得分：2)
在 FragmentStatePagerAdapter 中添加代码。
@Override
public Parcelable saveState() {
return null;
}
和
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1) {
//do nothing here! no call to super.restoreState(arg0, arg1);
}