Determining if an Activity exists on the current device?

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You could create an Intent object with necessary component info and then check if the intent is callable or not.I stumbled upon this snippet here on SO, don’t have the link to the actual thread. 

private boolean isCallable(Intent intent) {
        List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent, 
            PackageManager.MATCH_DEFAULT_ONLY);
        return list.size() > 0;
}

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