CODEWITHSUNDEEP
javaandroidandroid-studiobluetoothmouse
user4894728
user4894728

Reputation:

How to get an amount of movement of bluetooth mouse (connecting to Android) by Android application?

I'm using bluetooth mouse for operating Android device, and I want to get the amount of movement of mouse. if the cursor goes out of screen, Android-OS Automatically changes cursor-coordinates into inside of screen. So I have problem.

When I using my PC, I move cursor-coordinates into a center of PC screen, and move mouse(by using hand), and (After x - Before x) is the amount of movement. it repeats at every frame. But the method of moving-cursor is not usable in not-Rooted Android(security problem).

Now, I get the amount of movements by this method. Mouse(connected PC) -> (bluetooth) -> PC -> (UDP) -> smartphone. But this is not speedy(Max about 3000ms latency)... And, bluetooth mouse is too small to solder(hack)... By using NDK, AMOTION_getRawX() is just return the coordinates on the screen...

So I want to get the amount of movement of mouse by Android application. Please help me.

Upvotes: 1

Views: 437

Answers (1)

user4894728
user4894728

Reputation:

I solved it!!

I used "Android Terminal Emulator" app (to start ADB), and ADB command adb shell getevent -lt /dev/input/event5.
event5 maybe change in your device, so check yours use adb shell getevent -i

It tells all event log contains REL_X and REL_Y.(real time)
There are amount of movement of mouse.
If the cursor is edge, no problem.

I converted this hexadecimal String value to int.
int d = (int)Long.parseLong(hexValue, 16);

Upvotes: 1

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