Android ActivityGroup back first activity on click

I have an application with a TabActivity containing ActivityGroup. Each tabs works fine, but for one specific tab I want to go back to the first child activity when there's a click on it (whenever we are in a child activity of this tab or inside another tab).

I tried to start the activity that I want on the onResume of my ActivityGroup, it works when I'm on another tab, but not when I'm on this tab, wi开发者_运维知识库th a child activity.

Do I have to use another intent flag than FLAG_ACTIVITY_CLEAR_TOP for this tab ? Does anyone have a clue ?

Thanks.

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Usualy with ActivityGroup you have some kind of history.

Let's say your history is:

ArrayList<View> history;

Of course history needs to be initialized and have some Views in it which can be retrieved with:

getLocalActivityManager().startActivity(clazz.getName(), new Intent(this, clazz)).getDecorView();

where clazz is the class of your child Activity. So on click in current ActivityGroup define a method like:

public void backToFirst() {
    int size = history.size();
    while (size > 1) {
        history.remove(size - 1);
        size = history.size();
    }
    setContentView(history.get(0));
}

Hope I understood you correctly and this is the answer you are looking for.