InputDevice = android.view.InputDevice;

inputManager = android.os.ServiceManager.getService("input");

deviceIds = inputManager.getInputDeviceIds();

touchDeviceId = -1;

for (i = 0; i < deviceIds.length; i++) {
    id = deviceIds[i];
    sources = inputManager.getInputDevice(id).getSources();
    if ((sources & InputDevice.SOURCE_TOUCHSCREEN) == InputDevice.SOURCE_TOUCHSCREEN) {
        touchDeviceId = id;
    }
}

inputManager.enableInputDevice(touchDeviceId);
// 设置启用屏幕触摸

#MVEL表达式 #Javascript