Android传感器（一）-列出手机所具有的传感器

package com.xzs.sensor_test1;import android.hardware.Sensor;import android.hardware.SensorManager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.TextView;import java.util.List;public class MainActivity extends AppCompatActivity {    private TextView textView;//用于列出手机上拥有的传感器    private SensorManager sensorManager;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        textView=(TextView)findViewById(R.id.tv);                sensorManager=(SensorManager)getSystemService(SENSOR_SERVICE);        List<Sensor> sensors=sensorManager.getSensorList(Sensor.TYPE_ALL);        for(Sensor sensor:sensors){            textView.append(sensor.getName()+"\n");        }    }}