コード例 #1
0
 private String getDefaultFunctions() {
   String func =
       SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY, UsbManager.USB_FUNCTION_NONE);
   if (UsbManager.USB_FUNCTION_NONE.equals(func)) {
     func = UsbManager.USB_FUNCTION_MTP;
   }
   return func;
 }
コード例 #2
0
    public UsbHandler(Looper looper) {
      super(looper);
      try {
        // Restore default functions.
        mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY, UsbManager.USB_FUNCTION_NONE);
        if (UsbManager.USB_FUNCTION_NONE.equals(mCurrentFunctions)) {
          mCurrentFunctions = UsbManager.USB_FUNCTION_MTP;
        }
        mCurrentFunctionsApplied =
            mCurrentFunctions.equals(SystemProperties.get(USB_STATE_PROPERTY));
        mAdbEnabled =
            UsbManager.containsFunction(getDefaultFunctions(), UsbManager.USB_FUNCTION_ADB);
        setEnabledFunctions(null, false);

        String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
        updateState(state);

        // register observer to listen for settings changes
        mContentResolver.registerContentObserver(
            Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
            false,
            new AdbSettingsObserver());
        mContentResolver.registerContentObserver(
            Settings.Secure.getUriFor(Settings.Secure.ADB_NOTIFY),
            false,
            new ContentObserver(null) {
              public void onChange(boolean selfChange) {
                updateAdbNotification();
              }
            });

        // Watch for USB configuration changes
        mUEventObserver.startObserving(USB_STATE_MATCH);
        mUEventObserver.startObserving(ACCESSORY_START_MATCH);
      } catch (Exception e) {
        Slog.e(TAG, "Error initializing UsbHandler", e);
      }
    }