检测安卓手机自带传感器详细信息

public class MainActivity extends Activity {     private TextView text;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         text = (TextView)findViewById(R.id.text);         SensorManager sm = (SensorManager)getSystemService(Context.SENSOR_SERVICE);         List allsensors = sm.getSensorList(Sensor.TYPE_ALL);         text.setText("该手机有"+allsensors.size()+"个传感器，他们分别是： ");         for(Sensor s:allsensors){             String tempString = " " + "  设备名称：" + s.getName() + " " +