First of all, this application requires ROOT
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For some reason, you need a simple application to perform single tap on a single (X,Y) coordinates, this is the purpose of this application
1. SYSTEM_ALERT_WINDOW: Use this permission is to show the floating icon
2. GET_TASKS: To prevent this application perform auto tap when this application itself is fore-ground. This permission will be deprecated since Android 5.0
3. PACKAGE_USAGE_STATS: Similar to GET_TASKS permission, but this is for Android 5. Once application started, a screen will be opened to ask permission to check usage.