Determining if an Activity exists on the current device?

Question

Is there a way to check and see if an Activity exists on your device? If I have a youtube video link I want to specify it open in the YouTube PlayerActivity. However, I don\

Answer 1

I don't think I can catch the runtime exception

Actually, this works:

try {
    startActivity(new Intent(..));
} catch (ActivityNotFoundException e) {
    Toast.makeText(this, "Not installed.", LENGTH_SHORT).show();
}