如何与顶部对话框活动下方的活动进行交互？

Question

I have a dialog activity staying in the top of a screen but only covering a small portion of it. I know in the normal situation I am not allowed to manipulate the activity under the top one like click some buttons even though I can see it. But I really need this ability. Below is part of my code:

    private void onPlayStreamingClick() {
    Intent intent = new Intent(this.getActivity(), LivePlayerActivity.class);
    intent.putExtra("cache", false);
    intent.putExtra("loop", false);
    startActivity(intent);
}

The theme of LivePlayerActivity is "Theme.Dialog" and it does not cover the full screen. So I want to click the buttons in the activity behind LivePlayerActivity which could be seen from the screen. I know according to the essential mechanism of android lifecycle, after started LivePlayerActivity, the activity contains above code will change to pause status so it is not going to react to any touch or click events from the user. But I was told there is a way to make this happen and I want to know how. Any help is much appreciated!

Answer 1

You can not "modify" the underlying activity behind a dialog directly, or while the dialog is open. You have some options:

• Make the changes just before showing the dialog
• Use dialog callbacks (eg onDialogShowed), or the button ones.