android 传感器

package com.example.day14_sensor;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity implements SensorEventListener{

    private TextView text;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();

        //获取传感器的管理
        SensorManager sensor = (SensorManager) getSystemService(SENSOR_SERVICE);
        List<Sensor> sensorList = sensor.getSensorList(Sensor.TYPE_ALL);
        ArrayList<String> list = new ArrayList<>();
        for (Sensor s:sensorList){
            String str="
"+"设备名称:"+s.getName()+"
设备的版本:"+s.getVersion()+"
供应商:"+s.getVendor();
            list.add(str);
        }
        text.setText("经检测手机有"+list.size()+"个传感器,分别是:
"+list.toString());


        Sensor msensor1 = sensor.getDefaultSensor(Sensor.TYPE_GAME_ROTATION_VECTOR);
        sensor.registerListener(this,msensor1,SensorManager.SENSOR_DELAY_GAME);

        Sensor msensor = sensor.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        //监听事件
        sensor.registerListener(this,msensor,SensorManager.SENSOR_DELAY_GAME);

        Sensor light = sensor.getDefaultSensor(Sensor.TYPE_LIGHT);
        sensor.registerListener(this,light,SensorManager.SENSOR_DELAY_GAME);


    }

    private void initView() {
        text = (TextView) findViewById(R.id.text);
    }


    @Override
    public void onSensorChanged(SensorEvent event) {
        int type = event.sensor.getType();
        switch (type){

            case Sensor.TYPE_LIGHT:
                float[] values = event.values;
                StringBuilder builder = new StringBuilder();
                builder.append("光感度:"+values[0]);
//                builder.append("
y方向的加速度"+values[1]);
//                builder.append("
z方向的加速度:"+values[2]);
                text.setText(builder.toString());
                break;
            case Sensor.TYPE_GAME_ROTATION_VECTOR:
                float[] values1 = event.values;
                StringBuilder builder1 = new StringBuilder();
                builder1.append("x方向的度量:"+values1[0]);
                builder1.append("
y方向的度量:"+values1[1]);
                builder1.append("
z方向的度量:"+values1[2]);
                text.setText(builder1.toString());
                break;
        }

    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {

    }
}