Auto click is stopping when my finger touches the screen

I did auto clicker using dispatchGesture and everything is working but when I touch the screen using my finger it stop and call onCancelled method

The Service

public class MyService extends AccessibilityService {

    private Path path;
    private GestureDescription.Builder builder;
    private GestureDescription.StrokeDescription strokeDescription;
    private GestureResultCallback gestureResultCallback;
    private GestureDescription gestureDescription;

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        if (intent.getBooleanExtra("isClicked", false)) {
            clickOnPosition();
        }
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onAccessibilityEvent(AccessibilityEvent event) {

    }

    @Override
    public void onInterrupt() {

    }

    private void clickOnPosition() {
        if (path == null) {
            path = new Path();
            path.moveTo(540, 960);
            path.lineTo(540, 960);
        }
        if (builder == null)
            builder = new GestureDescription.Builder();
        if (strokeDescription == null) {
            strokeDescription = new GestureDescription.StrokeDescription(path, 0, 500);
            builder.addStroke(strokeDescription);
        }
        if (gestureResultCallback == null)
            gestureResultCallback = new GestureResultCallback() {
                @Override
                public void onCompleted(GestureDescription gestureDescription) {
                    clickOnPosition();
                }

                @Override
                public void onCancelled(GestureDescription gestureDescription) {
                    super.onCancelled(gestureDescription);
                }
            };
        if (gestureDescription == null)
            gestureDescription = builder.build();
        dispatchGesture(gestureDescription, gestureResultCallback, null);
    }

}

Button In MainActivity

public void click(View view) {
    if (intent == null) {
        intent = new Intent(this, MyService.class);
        intent.putExtra("isClicked", true);
        startService(intent);
    }
}

And about code is it good code or there is a better way to do this one???

I'm very surprised that you are starting AccessibilityService by own (in click method)... this kind of Service must be enabled, allowed and started by system automatically, check out how to declare this in HERE. without that process (system auto-start, not own call) AccessibilityService will probably behave like usual Service, causing no permission for executing dispatchGesture (and all other sensitive methods call), also some custom AccessibilityService methods won't be ever called, like overriden, but empty onAccessibilityEvent(...)