onActivityResult()片段事务错误 [英] onActivityResult() fragment transaction error

问题描述

我试图替换 onActivityResult()中的 fragment ，但是它总是给我 java.lang.illegalStateException的错误.

I am trying to replace fragment in onActivityResult() but it always gives me error of java.lang.illegalStateException.

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();

}

推荐答案

最终找到了解决方案，无法在onActivityResult()中交换或替换片段

Finally found the solution, fragment can not be swapped or replaced in onActivityResult()

我们需要将此代码放入 Handler 或 OnResume()

We need to put this code in Handler or in OnResume()

解决方案:

private boolean change_fragment=false;

OnActivityResult()代码

OnActivityResult() Code

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

    change_fragment=true;
}

OnResume()代码

OnResume() code

@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();
    }
}

这篇关于onActivityResult()片段事务错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！