Software emulation of clicking on the screen of an android smartphone?

Question

Android

Hello.
I had an idea here to assemble something like a bluetooth gamepad for androidbon for playing console emulators and other games with screen control (which in most cases is just disgusting).
In general, the iron part is not complicated - the buttons pull the microcontroller, which sends commands to the bluetooth module via yuart. In a few evenings, I think, I'll throw in the firmware. It will be more difficult for me to write a client part in a smartphone that will interpret data from BT and click on the corresponding areas of the screen (where there should be virtual buttons).
I have never written anything under android, so I'm curious if such emulation is possible (multi-touch at least 2-3 points)? And how difficult is it to implement?

Answer 1

For system applications only:

<permission android:name="android.permission.INJECT_EVENTS"
...
        android:protectionLevel="signature" />

That is, those that are signed by the same certificate as the system.

Answer 2

I don't want to disappoint you, but such a thing already exists and is called USB / BT Joystick Center
I use this program myself, it works great.

Answer 3

Do not listen to anyone, this is my advice to you, if you are determined to do something, do it. And then ruddy critics will come running with unnecessary advice, that there is already a type, or don’t worry, buy this. For all the time I used the device without sharpening, I didn’t find a single worthwhile program, it’s written crookedly, then the root is needed, then the advertisement climbs alone, I bought premium advertising still goggles in the corner, I repeat, you won’t find a single normal program with wheelbarrow emulation without root , that's all. If someone is ready to argue, write the name, if necessary, I will even buy and test the video and record it. [email protected] usually don't check often)