檢查otg設備是否是鼠標或鍵盤

首先需要繼承InputManager.InputDeviceListener：

public class OTGTest extends BaseActivity implements InputManager.InputDeviceListener

private InputManager mIm;

mIm = (InputManager) getSystemService(INPUT_SERVICE);

mIm.registerInputDeviceListener(this, null);

if(mIm == null) {

mIm = (InputManager) getSystemService(INPUT_SERVICE);

mIm.registerInputDeviceListener(this, null);

}

final int[] devices = InputDevice.getDeviceIds();

for (int i = 0; i < devices.length; i++) {

InputDevice device = InputDevice.getDevice(devices[i]);

if (device != null && !device.isVirtual() && device.isExternal()) {

if(device.getName().contains("Mouse") || device.getName().contains("Keyboard")) {

Log.d(TAG, "device.getName()=" + device.getName() + " device.getId() " + device.getId() + " getDescriptor " + device.getDescriptor());

break;

}

}

}

實現父類的方法：

@Override

public void onInputDeviceAdded(int deviceId) {

Log.d("huasong", "onInputDeviceRemoved " + deviceId);

InputDevice device = InputDevice.getDevice(deviceId);

if (device != null && !device.isVirtual() && (device.isFullKeyboard() || device.isExternal())) {

if(device.getName().contains("Mouse") || device.getName().contains("Keyboard")) {

Log.d(TAG, "device.getName()=" + device.getName() + " device.getId() " + device.getId() + " getDescriptor " + device.getDescriptor());

}

}

}

@Override

public void onInputDeviceChanged(int deviceId) {

}

@Override

public void onInputDeviceRemoved(int deviceId) {

}

總結

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