如何在选项卡小部件内的活动组内从一个活动调用 startactivityforresult 到另一个活动

发布于 2024-11-16 22:37:11 字数 571 浏览 4 评论 0原文

我有一个选项卡活动，在一个选项卡内有活动组。最初显示活动 A，从那里我想使用 startactivityforresult 调用活动 B。如何实现这一目标？

在我的活动 A 中，我正在这样做...

        Intent i = new Intent(Entry.this, Child.class);

        // Create the view using FirstGroup's LocalActivityManager  
        View view = GroupActivity.group.getLocalActivityManager()  
        .startActivity("child", i  
        .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))  
        .getDecorView();  

        // Again, replace the view  
        GroupActivity.group.replaceView(view);

虽然这会将我带到活动 B，但我无法从那里返回到活动 A。

原文

I have a tab activity, and inside one tab I have activitygroup. Initially activity A is shown and from there I want to call activity B using startactivityforresult. How to achieve this?

in my activity A, I am doing this...

        Intent i = new Intent(Entry.this, Child.class);

        // Create the view using FirstGroup's LocalActivityManager  
        View view = GroupActivity.group.getLocalActivityManager()  
        .startActivity("child", i  
        .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))  
        .getDecorView();  

        // Again, replace the view  
        GroupActivity.group.replaceView(view);

This though takes me to activity B, there is no way for me to return to activity A from there.

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○闲身 2024-11-23 22:37:11

将 startActivity 更改为：

.startActivityForResult(i, .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));

然后将此方法添加到 ActivityA：

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // See which child activity is calling us back.
        switch (resultCode) {
           case RESULT_OK:
           {
               //processing code goes here
           }
           default:
                break;
        }
}

然后当在 Activity B 上调用 finish() 时，您应该点击“OnActivityResult”方法。调用：将 Intent 发送回主 Activity。

setResult(Activity.Result_OK, intent);

您还可以通过在 Activity B 上

Change startActivity to:

.startActivityForResult(i, .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));

then add this method to ActivityA:

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // See which child activity is calling us back.
        switch (resultCode) {
           case RESULT_OK:
           {
               //processing code goes here
           }
           default:
                break;
        }
}

and then when finish() is called on Activity B you should hit the 'OnActivityResult' method. You can also send an intent back to main activity by calling: