ANDROID_MARS学习笔记_S05_002_给传感器注册listener

Posted 2020-06-14

1

 1 @Override
 2     public void onCreate(Bundle savedInstanceState) {
 3         super.onCreate(savedInstanceState);
 4         setContentView(R.layout.main);
 5         //获取SensorManager对象
 6         sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
 7         //获取光线传感器对象
 8         Sensor lightSensor = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT);
 9 
10         //注册传感器
11         sensorManager.registerListener(new SensorEventListener() {
12 
13             public void onSensorChanged(SensorEvent event) {
14                 float acc = event.accuracy;
15                 float lux = event.values[0];
16                 System.out.println("acc---->" + acc);
17                 System.out.println("lux---->" + lux);
18             }
19 
20             public void onAccuracyChanged(Sensor sensor,
21                     int accuracy) {
22 
23             }
24         }, lightSensor, SensorManager.SENSOR_DELAY_NORMAL);
25     }