索尼SmartWatch2:回绕键

在Sony SmartWatch2的控制扩展中,我可以通过onKey接收返回密钥,但如何防止扩展终止?我想挂回键来做一些过程,但按回键会终止扩展。

在SampleAdvancedControlExtension中,它似乎通过启动新控件来阻止后退按钮,但我只使用单个控件。

public void onKey(int action, int keyCode, long timeStamp) {
    Log.v(SampleExtensionService.LOG_TAG, "onKey");

    if (action == Control.Intents.KEY_ACTION_RELEASE
            && keyCode == Control.KeyCodes.KEYCODE_BACK) {
        Log.d(SampleExtensionService.LOG_TAG, "onKey() - back button intercepted.");
        onBack();
    } else if (mCurrentControl != null) {
        super.onKey(action, keyCode, timeStamp);
    }
}

/**
 * Closes the currently open control extension. If there is a control on the
 * back stack it is opened, otherwise extension is closed.
 */
public void onBack() {
    Log.v(SampleExtensionService.LOG_TAG, "onBack");
    if (!mControlStack.isEmpty()) {
        Intent backControl = mControlStack.pop();
        ControlExtension newControl = createControl(backControl);
        startControl(newControl);
    } else {
        stopRequest();
    }
}

好的,我解决了问题。我不得不在RegistrationInformation类中添加以下方法。

@Override
public boolean controlInterceptsBackButton() {
    // Extension has it's own navigation, handles back presses.
    return true;
}