android - onActivityResult() fragment 事务错误

Question

我正在尝试替换 onActivityResult() 中的 fragment 但它总是给我 java.lang.illegalStateException 错误。

Caused by: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
12-29 18:50:21.455 5554-5554/com.package E/AndroidRuntime:     at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1377)
12-29 18:50:21.455 5554-5554/com.package E/AndroidRuntime:     at     android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1395)
12-29 18:50:21.455 5554-5554/com.package E/AndroidRuntime:     at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:637)
12-29 18:50:21.455 5554-5554/com.package E/AndroidRuntime:     at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:616)
12-29 18:50:21.455 5554-5554/com.package E/AndroidRuntime:     at .virtualClass.VirtualPurchaseFragment.dealWithSuccessfulPurchase(VirtualPurchaseFragment.java:161)

这是我的onActivityResult代码

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

    Fragment fragment = new VirtualListFragment();
    FragmentManager fragmentManager = getFragmentManager();
    fragmentManager.beginTransaction().replace(R.id.frame_container, fragment).commit();

}

Answer 1

终于找到解决办法了，fragment cannot be swaped or replaceed in onActivityResult()

我们需要把这段代码放在Handler或者OnResume()

中

解决方案:

private boolean change_fragment=false;

OnActivityResult()代码

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {

    change_fragment=true;
}

OnResume() 代码

@Override
public void onResume() {
    super.onResume();
    if(change_fragment)
    {
        change_fragment=false;
        Fragment fragment = new VirtualListFragment();
        FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction().replace(R.id.frame_container, fragment).commit();
    }
}