android - 将选项卡活动的意图传递给主要活动

Question

我正在编写一个使用 SomeActivity 扩展 TabActivity 的选项卡。下面是主流程：主Activity会调用SomeActivity。SomeActivity 会将两个活动（activityone 和activitytwo）放到两个选项卡中。这是我的问题，当 SomeActivity 的子活动完成后，我怎么能将一些额外的意图传递给 mainactivity？

这是SomeActivity的主要代码，它将被MainActivity调用。

public class SomeActivity extends TabActivity {

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setResult(Activity.RESULT_OK);

    Resources res = getResources(); // Resource object to get Drawables
    TabHost tabHost = getTabHost();  // The activity TabHost
    TabSpec spec;
    Intent intent;  // Reusable Intent for each tab

  //TAB1
    intent = new Intent(this,ActivityOne.class);
    spec = tabHost.newTabSpec("tab1")
    .setIndicator("Tab1", res.getDrawable(android.R.drawable.ic_media_play))
    .setContent(intent);//
    tabHost.addTab(spec);//

    //TAB2
    intent = new Intent(this,ActivityTwo.class);
    spec = tabHost.newTabSpec("tab2")
    .setIndicator("Tab1", res.getDrawable(android.R.drawable.ic_media_play))
    .setContent(intent);//
    tabHost.addTab(spec);//

    tabHost.setCurrentTab(0);
}

这是我想向 MainActivity 发送意图的地方。

public class ActivityOne extends Activity{
    private void SendIntent()
    {
        Intent intent = new Intent();
        intent.putExtra("information", "someinformation");

        // Set result and finish this Activity
        setResult(Activity.RESULT_OK, intent);
        finish();
    }
}