调用的第三个活动将其结果返回到第一个活动,而不是将结果发送到第二个活动？

Question

场景:

1. 第一个活动使用startActivityForResult启动秒活动
2. 第二个活动使用startActivityForResult启动第三个活动

预期结果:第三个(最后一个)活动设置第二个活动的onActivityResult 上捕获的结果

当前结果:第三个(最后一个)活动设置在第一个活动的onActivityResult 上捕获的结果

如何在第二个活动上设置第三个活动的结果第三个(最后一个)活动设置第二个活动的onActivityResult上捕获的结果？

一些代码片段:

第一项活动

public class TestProjActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //setContentView(R.layout.main);

    Log.i("TAAAG", "1st activity - startActivityForResult");
    Intent intent = new Intent(TestProjActivity.this, Activ2.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
    startActivityForResult(intent, 1008);
}

@Override  
protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    super.onActivityResult(requestCode, resultCode, data);
    Log.i("TAAAG", "1st activity - onActivityResult");
    if (resultCode == RESULT_OK) {  
        Log.i("TAAAG", String.valueOf(requestCode));
        switch (requestCode) {  
        case 1008:
            String info = data.getExtras().getString("KEY1");
            Log.i("TAAAG", "1st activity - onActivityResult - printing result");
            Log.i("TAAAG", info);
            break;
        }
    }
}

}

第二项活动

public class Activ2 extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Log.i("TAAAG", "2nd activity - startActivityForResult");
    Intent intent = new Intent(Activ2.this, Activ3.class);

    startActivityForResult(intent, 1009);

    Intent intent2 = new Intent();
    intent2.putExtra("KEY1", "VALUE1");


    setResult(RESULT_OK, intent2);
    finish();
}

@Override  
protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
    super.onActivityResult(requestCode, resultCode, data);
    Log.i("TAAAG", "2nd activity - onActivityResult");
    if (resultCode == RESULT_OK) {  
        Log.i("TAAAG", String.valueOf(requestCode));
        switch (requestCode) {  
        case 1009:
            String info = data.getExtras().getString("KEY2");
            Log.i("TAAAG", "2nd activity - onActivityResult - printing result");
            Log.i("TAAAG", info);
            break;
        }
    }
}

}

第三项活动

 public class Activ3 extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    Log.i("TAAAG", "3rd activity - Inserting Value and finishing");

    Intent intent = new Intent();
    intent.putExtra("KEY2", "VALUE2");

    setResult(RESULT_OK, intent);
    finish();
}

}

Answer 1

使用活动标志将结果转发到超级活动:

intent.setFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);

Answer 2

我认为你应该删除 finish();第二个活动中 oncreate 的最后一行......