在Android广播接收器中将活动置于最前面

Question

I'm trying to launch an activity , when i got an incoming call for my android mobile. For that, in ringing state, i started an activity and sets some flags for bring this activity to front. Here is the Code:

       Intent intent2open = new Intent(ctx,  Main.class);
    intent2open.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK |       Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP); 
    intent2open.setAction("android.intent.action.VIEW");
    intent2open.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    intent2open.setAction(Intent.ACTION_MAIN); 
    intent2open.addCategory(Intent.CATEGORY_LAUNCHER); 
        intent2open.putExtra(name, value);
    startActivity(intent2open);

By using above code, i didnt get my required output, some cases app will be launched when i accepted or rejected my call. In some other cases,it will be launched when the state in ringing. I am unable to addressed this issue.. How can i bring my activity to front.

Thanks in advance, Lokesh.

Answer 1

Set android:launchMode="singleTop" to your activity in manifest and set your flags as:

intent2open.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT
    |Intent.FLAG_ACTIVITY_REORDER_TO_FRONT
    |Intent.FLAG_ACTIVITY_NEW_TASK);

* at least it works well for me in my project

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Update

Increase of priority in manifest for your broadcast's intent-filter may also help you in this case:

<!-- Higher numbers have a higher priority -->
<intent-filter android:priority="100">