传感器

//光感器
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;import java.util.List;public class MainActivity extends AppCompatActivity {private SensorManager manager;private MySensorEventListener mySensorEventListener;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);manager = (SensorManager) getSystemService(SENSOR_SERVICE);/**
         * 查看所有传感器
         */
        List<Sensor> sensorList = manager.getSensorList(Sensor.TYPE_ALL);for (Sensor s:sensorList){System.out.println(s.getName());}Sensor defaultSensor = manager.getDefaultSensor(Sensor.TYPE_LIGHT);mySensorEventListener = new MySensorEventListener();//注册传感器 参数1：监听 2.要坚挺的传感器对象 3.决定采用的敏感度  正常
        manager.registerListener(mySensorEventListener,defaultSensor,SensorManager.SENSOR_DELAY_NORMAL);}class MySensorEventListener implements SensorEventListener{//传感器数据变化调用的方法
        @Override
        public void onSensorChanged(SensorEvent sensorEvent) {float value = sensorEvent.values[0];System.out.println("光线改变值："+value);}//传感器精度发生改变调用
        @Override
        public void onAccuracyChanged(Sensor sensor, int i) {}}@Override
    protected void onDestroy() {super.onDestroy();//释放资源
        manager.unregisterListener(mySensorEventListener);mySensorEventListener=null;}
}
//指南针传感器 
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;public class MainActivity extends AppCompatActivity {private SensorManager manager;private MySensorEventlistener mySensorEventlistener;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//得到系统管理者
        manager = (SensorManager) getSystemService(SENSOR_SERVICE);//得到指南针传感器
        Sensor defaultSensor = manager.getDefaultSensor(Sensor.TYPE_ORIENTATION);mySensorEventlistener = new MySensorEventlistener();//注册
        manager.registerListener(mySensorEventlistener,defaultSensor,SensorManager.SENSOR_DELAY_NORMAL);}public class MySensorEventlistener implements SensorEventListener{@Override
        public void onSensorChanged(SensorEvent sensorEvent) {int value = (int) sensorEvent.values[0];if(value>0 && value<90){System.out.println("东北");}if(value>90 && value<180){System.out.println("东南");}if(value>180 && value<270){System.out.println("西南");}if(value>270 && value<360){System.out.println("西北");}if(value==0){System.out.println("北");}if(value==90){System.out.println("东");}if(value==180){System.out.println("南");}if(value==270){System.out.println("西");}}@Override
        public void onAccuracyChanged(Sensor sensor, int i) {}}//释放
    @Override
    protected void onDestroy() {super.onDestroy();manager.unregisterListener(mySensorEventlistener);mySensorEventlistener=null;}
}

传感器

//光感器
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;import java.util.List;public class MainActivity extends AppCompatActivity {private SensorManager manager;private MySensorEventListener mySensorEventListener;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);manager = (SensorManager) getSystemService(SENSOR_SERVICE);/**
         * 查看所有传感器
         */
        List<Sensor> sensorList = manager.getSensorList(Sensor.TYPE_ALL);for (Sensor s:sensorList){System.out.println(s.getName());}Sensor defaultSensor = manager.getDefaultSensor(Sensor.TYPE_LIGHT);mySensorEventListener = new MySensorEventListener();//注册传感器 参数1：监听 2.要坚挺的传感器对象 3.决定采用的敏感度  正常
        manager.registerListener(mySensorEventListener,defaultSensor,SensorManager.SENSOR_DELAY_NORMAL);}class MySensorEventListener implements SensorEventListener{//传感器数据变化调用的方法
        @Override
        public void onSensorChanged(SensorEvent sensorEvent) {float value = sensorEvent.values[0];System.out.println("光线改变值："+value);}//传感器精度发生改变调用
        @Override
        public void onAccuracyChanged(Sensor sensor, int i) {}}@Override
    protected void onDestroy() {super.onDestroy();//释放资源
        manager.unregisterListener(mySensorEventListener);mySensorEventListener=null;}
}
//指南针传感器 
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;public class MainActivity extends AppCompatActivity {private SensorManager manager;private MySensorEventlistener mySensorEventlistener;@Override
    protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//得到系统管理者
        manager = (SensorManager) getSystemService(SENSOR_SERVICE);//得到指南针传感器
        Sensor defaultSensor = manager.getDefaultSensor(Sensor.TYPE_ORIENTATION);mySensorEventlistener = new MySensorEventlistener();//注册
        manager.registerListener(mySensorEventlistener,defaultSensor,SensorManager.SENSOR_DELAY_NORMAL);}public class MySensorEventlistener implements SensorEventListener{@Override
        public void onSensorChanged(SensorEvent sensorEvent) {int value = (int) sensorEvent.values[0];if(value>0 && value<90){System.out.println("东北");}if(value>90 && value<180){System.out.println("东南");}if(value>180 && value<270){System.out.println("西南");}if(value>270 && value<360){System.out.println("西北");}if(value==0){System.out.println("北");}if(value==90){System.out.println("东");}if(value==180){System.out.println("南");}if(value==270){System.out.println("西");}}@Override
        public void onAccuracyChanged(Sensor sensor, int i) {}}//释放
    @Override
    protected void onDestroy() {super.onDestroy();manager.unregisterListener(mySensorEventlistener);mySensorEventlistener=null;}
}