来自片段和完成子活动的startActivityForResult（）不调用片段中的onActivityResult（）

Question

FirstActivity.java有一个Fragmenta.java调用StartActivityForResult()。secondactivity.java调用finish()但从不调用onactivityresult,它是在fragmenta.java中编写的。

fragmenta.java代码：

  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    // some code
    Intent i = new Intent(getActivity(), SecondActivity.class);
    i.putExtra("helloString", helloString);
    getActivity().startActivityForResult(i, 1);
  }

  @Override
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    getActivity();
    if(requestCode == 1 && resultCode == Activity.RESULT_OK) {
       //some code
    }
  }

secondactivity.java代码：

  @Override
  protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       //some code
       Intent returnIntent = new Intent();
       returnIntent.putExtra("result", result);                          

       setResult(Activity.RESULT_OK,returnIntent);     
       finish();
  }

Answer 1

您必须在firstActivity.java中编写OnActivityResult()，如下所示

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
   super.onActivityResult(requestCode, resultCode, data);
}

因此这将调用片段的OnActivityResult()

编辑：解决方案是将GetActivity().StartActivityForResult(i,1）；替换为StartActivityForResult(i,1）；