Java Code Examples for android.view.InputDevice#getDeviceIds()

private void gatherControllers(boolean sendEvent) {
	// gather all joysticks and gamepads, remove any disconnected ones
	IntMap<AndroidController> removedControllers = new IntMap<AndroidController>();
	removedControllers.putAll(controllerMap);
	
	for(int deviceId: InputDevice.getDeviceIds()) {
		InputDevice device = InputDevice.getDevice(deviceId);
		AndroidController controller = controllerMap.get(deviceId);
		if(controller != null) {
			removedControllers.remove(deviceId);
		} else {
			addController(deviceId, sendEvent);
		}
	}
	
	for(Entry<AndroidController> entry: removedControllers.entries()) {
		removeController(entry.key);
	}
}
 

/** Looks up the hardware resolution of the Glass touchpad. */
private void lookupTouchpadHardwareResolution() {
    int[] deviceIds = InputDevice.getDeviceIds();
    for (int deviceId : deviceIds) {
        InputDevice device = InputDevice.getDevice(deviceId);
        if ((device.getSources() & InputDevice.SOURCE_TOUCHPAD) != 0) {
            logVerbose("Touchpad motion range: x-axis [%d, %d] y-axis [%d, %d]",
                    device.getMotionRange(MotionEvent.AXIS_X).getMin(),
                    device.getMotionRange(MotionEvent.AXIS_X).getMax(),
                    device.getMotionRange(MotionEvent.AXIS_Y).getMin(),
                    device.getMotionRange(MotionEvent.AXIS_Y).getMax());

            mTouchpadHardwareWidth = device.getMotionRange(MotionEvent.AXIS_X).getRange();
            mTouchpadHardwareHeight = device.getMotionRange(MotionEvent.AXIS_Y).getRange();
            // Stop after we've seen the first touchpad device, because there might be multiple
            // devices in this list if the user is currently screencasting with MyGlass. The
            // first one will always be the hardware touchpad.
            break;
        }
    }
}
 

/**
 * 输入设备是否存在
 * @param deviceName
 * @return
 */
private boolean isInputDeviceExist(String deviceName) {
    int[] deviceIds = InputDevice.getDeviceIds();

    for (int id : deviceIds) {
        if (InputDevice.getDevice(id).getName().equals(deviceName)) {
            return true;
        }
    }
    return false;
}
 

/**
 * @return an array of two ints: result[0] represents the pointer-types and result[1] represents
 *         the hover-types supported by the device, where each int is the union (bitwise OR) of
 *         corresponding type (PointerType/HoverType) bits.
 */
@CalledByNative
private static int[] availablePointerAndHoverTypes() {
    int[] result = new int[2];
    result[0] = result[1] = 0;

    for (int deviceId : InputDevice.getDeviceIds()) {
        InputDevice inputDevice = InputDevice.getDevice(deviceId);
        if (inputDevice == null) continue;

        int sources = inputDevice.getSources();

        if (hasSource(sources, InputDevice.SOURCE_MOUSE)
                || hasSource(sources, InputDevice.SOURCE_STYLUS)
                || hasSource(sources, InputDevice.SOURCE_TOUCHPAD)
                || hasSource(sources, InputDevice.SOURCE_TRACKBALL)) {
            result[0] |= PointerType.FINE;
        } else if (hasSource(sources, InputDevice.SOURCE_TOUCHSCREEN)) {
            result[0] |= PointerType.COARSE;
        }

        if (hasSource(sources, InputDevice.SOURCE_MOUSE)
                || hasSource(sources, InputDevice.SOURCE_TOUCHPAD)
                || hasSource(sources, InputDevice.SOURCE_TRACKBALL)) {
            result[1] |= HoverType.HOVER;
        } else if (hasSource(sources, InputDevice.SOURCE_STYLUS)
                || hasSource(sources, InputDevice.SOURCE_TOUCHSCREEN)) {
            result[1] |= HoverType.NONE;
        }

        // Remaining InputDevice sources: SOURCE_DPAD, SOURCE_GAMEPAD, SOURCE_JOYSTICK,
        // SOURCE_KEYBOARD, SOURCE_TOUCH_NAVIGATION, SOURCE_UNKNOWN
    }

    if (result[0] == 0) result[0] = PointerType.NONE;
    if (result[1] == 0) result[1] = HoverType.NONE;

    return result;
}
 

public int getKeyFromKeyCode(int keyCode, int metaState, int deviceId) {
    if (deviceId < 0) {
        int[] ids = InputDevice.getDeviceIds();
        if (ids.length != 0) {
            deviceId = ids[deviceId];

            InputDevice device = InputDevice.getDevice(deviceId);
            if (device != null) {
                return device.getKeyCharacterMap().get(keyCode, metaState);
            }
        }
    }
    return 0;
}
 

public ArrayList getGameControllerIds() {
    ArrayList gameControllerDeviceIds = new ArrayList();
    int[] deviceIds = InputDevice.getDeviceIds();
    for (int deviceId : deviceIds) {
        InputDevice dev = InputDevice.getDevice(deviceId);
        int sources = dev.getSources();

        // Verify that the device has gamepad buttons, control sticks, or both.
        if (((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD)
            || ((sources & InputDevice.SOURCE_JOYSTICK) == InputDevice.SOURCE_JOYSTICK)) {
            // This device is a game controller. Store its device ID.
            name.setText(dev.getName());
            if (!gameControllerDeviceIds.contains(deviceId)) {
                gameControllerDeviceIds.add(deviceId);
            }
            //possible both maybe true.
            if ((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD)
                isGamePad = true;
            if ((sources & InputDevice.SOURCE_JOYSTICK) == InputDevice.SOURCE_JOYSTICK)
                isJoyStick = true;
            logger.append("GamePad: " + isGamePad + "\n");
            logger.append("JoyStick: " + isJoyStick + "\n");
        }

    }
    return gameControllerDeviceIds;
}
 

@Override
public int[] getInputDeviceIds() {
    // add any hitherto unknown devices to our
    // collection of watched input devices
    int[] activeDevices = InputDevice.getDeviceIds();
    long time = SystemClock.elapsedRealtime();
    for ( int id : activeDevices ) {
        long[] lastContact = mDevices.get(id);
        if ( null == lastContact ) {
            // we have a new device
            mDevices.put(id, new long[] { time });
        }
    }
    return activeDevices;
}
 

/** Looks up the hardware resolution of the Glass touchpad. */
private void lookupTouchpadHardwareResolution() {
    int[] deviceIds = InputDevice.getDeviceIds();
    for (int deviceId : deviceIds) {
        InputDevice device = InputDevice.getDevice(deviceId);
        if ((device.getSources() & InputDevice.SOURCE_TOUCHPAD) != 0) {
            mTouchpadHardwareWidth = device.getMotionRange(MotionEvent.AXIS_X).getRange();
            mTouchpadHardwareHeight = device.getMotionRange(MotionEvent.AXIS_Y).getRange();
            // Stop after we've seen the first touchpad device, because there might be multiple
            // devices in this list if the user is currently screencasting with MyGlass. The
            // first one will always be the hardware touchpad.
            break;
        }
    }
}
 

public List<Joystick> loadJoysticks(int joyId, InputManager inputManager) {
    logger.log(Level.INFO, "loading Joystick devices");
    ArrayList<Joystick> joysticks = new ArrayList<Joystick>();
    joysticks.clear();
    joystickIndex.clear();

    ArrayList<Integer> gameControllerDeviceIds = new ArrayList<>();
    int[] deviceIds = InputDevice.getDeviceIds();
    for (int deviceId : deviceIds) {
        InputDevice dev = InputDevice.getDevice(deviceId);
        int sources = dev.getSources();
        logger.log(Level.FINE, "deviceId[{0}] sources: {1}", new Object[]{deviceId, sources});

        // Verify that the device has gamepad buttons, control sticks, or both.
        if (((sources & InputDevice.SOURCE_GAMEPAD) == InputDevice.SOURCE_GAMEPAD) ||
                ((sources & InputDevice.SOURCE_JOYSTICK) == InputDevice.SOURCE_JOYSTICK)) {
            // This device is a game controller. Store its device ID.
            if (!gameControllerDeviceIds.contains(deviceId)) {
                gameControllerDeviceIds.add(deviceId);
                logger.log(Level.FINE, "Attempting to create joystick for device: {0}", dev);
                // Create an AndroidJoystick and store the InputDevice so we
                // can later correspond the input from the InputDevice to the
                // appropriate jME Joystick event
                AndroidJoystick joystick = new AndroidJoystick(inputManager,
                                                            joyInput,
                                                            dev,
                                                            joyId+joysticks.size(),
                                                            dev.getName());
                joystickIndex.put(deviceId, joystick);
                joysticks.add(joystick);

                // Each analog input is reported as a MotionRange
                // The axis number corresponds to the type of axis
                // The AndroidJoystick.addAxis(MotionRange) converts the axis
                // type reported by Android into the jME Joystick axis
                List<MotionRange> motionRanges = dev.getMotionRanges();
                for (MotionRange motionRange: motionRanges) {
                    logger.log(Level.INFO, "motion range: {0}", motionRange.toString());
                    logger.log(Level.INFO, "axis: {0}", motionRange.getAxis());
                    JoystickAxis axis = joystick.addAxis(motionRange);
                    logger.log(Level.INFO, "added axis: {0}", axis);
                }

                // InputDevice has a method for determining if a keyCode is
                // supported (InputDevice  public boolean[] hasKeys (int... keys)).
                // But this method wasn't added until rev 19 (Android 4.4)
                // Therefore, we only can query the entire device and see if
                // any InputDevice supports the keyCode.  This may result in
                // buttons being configured that don't exist on the specific
                // device, but I haven't found a better way yet.
                for (int keyCode: AndroidGamepadButtons) {
                    logger.log(Level.INFO, "button[{0}]: {1}",
                            new Object[]{keyCode, KeyCharacterMap.deviceHasKey(keyCode)});
                    if (KeyCharacterMap.deviceHasKey(keyCode)) {
                        // add button even though we aren't sure if the button
                        // actually exists on this InputDevice
                        logger.log(Level.INFO, "button[{0}] exists somewhere", keyCode);
                        JoystickButton button = joystick.addButton(keyCode);
                        logger.log(Level.INFO, "added button: {0}", button);
                    }
                }

            }
        }
    }


    loaded = true;
    return joysticks;
}