使用Android的接近传感器 [英] Using proximity sensor in android

问题描述

我想用接近传感器在我的项目。我搜索了距离感应器教程。而且我发现了一个传感器，在教程的http://www.vogella.com/articles/AndroidSensor/article.html#sensoroverview_manager.我试图用接近传感器如下code：

I want to use proximity sensor in my project. I searched for proximity sensor tutorial. And I found a sensor tutorial at http://www.vogella.com/articles/AndroidSensor/article.html#sensoroverview_manager. I tried to use proximity sensor as following code:

@Override
public void onSensorChanged(SensorEvent event)
{
    if(event.sensor.getType() == Sensor.TYPE_PROXIMITY)
    {
        Toast.makeText(getApplicationContext(), "working", Toast.LENGTH_SHORT).show();
    }
}

我的活动正在实施 SensorEventListener 。但它不工作。我是否需要使用使用接近传感器的任何许可？还是我的code是错误的，这样做的东西。您的帮助将是非常美联社preciated。谢谢

My Activity is implementing SensorEventListener. But its not working. Do I need to use any permission to use proximity sensor? Or My code is wrong for doing this stuff. Your help will be very appreciated. Thank you

推荐答案

你是注册你的听众。在您的活动：

you are to register your listener. In your activity:

@Override
public final void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    // Get an instance of the sensor service, and use that to get an instance of
    // a particular sensor.
    mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    mProximity = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
}

@Override
protected void onResume() {
    // Register a listener for the sensor.
    super.onResume();
    mSensorManager.registerListener(this, mProximity, SensorManager.SENSOR_DELAY_NORMAL);
}

然后在你被覆盖的onSensorChanged（）方法，你可以做你的东西带传感器的数据。

and then in you overriden onSensorChanged() method you can do your stuff with sensor data.

很抱歉，如果我的回答是为时已晚=）

Sorry if my answer is too late =)

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