I'm working on an Android project where I need to count the number of clicks or screen touches that occur on an underlying application, even when my app is running in the foreground.
Here's the scenario:
- My app is running in the foreground.
- Another app (e.g., the calculator app) is running in the background, visible beneath my app.
- I need to detect and count the number of times the user touches the screen, even if those touches are technically interacting with the underlying app.
I've tried several approaches, including:
- Foreground Services: These allow my app to run in the foreground, but they don't seem to provide a way to capture touch events on other apps.
- Accessibility Services: While powerful, I'm not sure if they are the right tool for this specific task, as I don't need to interact with the underlying app's UI elements, just count the touches.
- WindowManager and Overlays: I've created a transparent overlay using
WindowManagerandSYSTEM_ALERT_WINDOWpermission, but I'm struggling to capture touch events that are intended for the underlying app. - TouchInterceptor : I created a TouchInterceptor class that extends View. I added this class to the windowManager with 0 width and 0 height. I tried to catch touch events with onTouchEvent method. But onTouchEvent method is not called.
I'm looking for a way to achieve this without requiring root access or modifying the underlying app.
Here are my specific questions:
- Is it possible to capture touch events that occur on an underlying app from a foreground app in Android?
- If so, what are the recommended approaches or techniques to achieve this?
- Are there any specific Android APIs or permissions that I should be using?
- Is there a way to detect touch events without interfering with the underlying app's functionality?
- Why is onTouchEvent method not called?
Any guidance or code examples would be greatly appreciated.
Thanks in advance!
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