Activity 带有片段，另一个 Activity return 在 onActivityResult 中为 null

Question

ActivityOne -> 包含 FragmentOne 并且我添加了方法 onActivityResult

FragmentOne -> 包含 recyclerView 并在项目上单击 startActivityForResult 转到 ActivityTwo

ActivityTwo -> 在 FragmentOne

的 recyclerView 中获取项目详细信息

ActivityOne 在 ActivityResult 上获取空数据

代码： ActivityOne

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Utils.showToast("intent receive");
    if (requestCode==1111 && resultCode == RESULT_OK){
        int position =(int) data.getExtras().get("position");
        Log.d("TAG", "onActivityResult: "+ position);
    }
}

代码：FragmentOne

   Intent i = new Intent(mContext.getApplicationContext(), ActivityTwo.class);
            Bundle bundle = new Bundle();
            bundle.putInt("id", id);
            bundle.putInt("position",position);
            i.putExtras(bundle);  
            ((Activity) mContext).startActivityForResult(i,1111);

代码：ActivityTwo

@Override
public void onBackPressed() {
    super.onBackPressed();
    if (hasChanges){
        Intent intent = new Intent();
        intent.putExtra("position",position);
        setResult(Activity.RESULT_OK,intent);
    }
    finish();
}

Answer 1

更改 onBackPressed() as.You 刚刚完成 activity 没有返回结果。在这种情况下，还有一件事 super.onBackPressed() 会做与 finish.So 相同的事情，只需调用 one 。

 @Override
public void onBackPressed() {
    if (hasChanges){
        Intent intent = new Intent();
        intent.putExtra("position",position);
        setResult(Activity.RESULT_OK,intent);
    }
    super.onBackPressed();
}

Activity 带有片段，另一个 Activity return 在 onActivityResult 中为 null

Activity with fragment and another Activity return null on onActvityResult

android

android-fragmentactivity