传感器

 <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        android:id="@+id/textView" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="手机支持的传感器"
        android:id="@+id/support"
        android:layout_below="@+id/textView"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:onClick="click1"
        android:layout_marginTop="80dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="click2"
        android:text="震动"
        android:id="@+id/zd"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

2.

public class MainActivity extends AppCompatActivity {

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

    private void init() {
        //传感器管理对象
        SensorManager sm= (SensorManager) getSystemService(getApplicationContext().SENSOR_SERVICE);
        //获取加速度传感器
        Sensor sensor=sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        //设置扑捉动作变换的监听器
        sm.registerListener(new A(),sensor,SensorManager.SENSOR_DELAY_GAME);
    }

    public  void click1(View view){
        SensorManager sensor= (SensorManager) getSystemService(getApplicationContext().SENSOR_SERVICE);
        List<Sensor> list=sensor.getSensorList(Sensor.TYPE_ALL);
        StringBuffer sb=new StringBuffer();
        for (Sensor sensor1 : list) {

            sb.append(sensor1.getName());
            System.out.println("--------"+sensor1.getName());
        }
        TextView text= (TextView) findViewById(R.id.textView);
        text.setText(sb.toString());
    }
    public  void click2(View view){
        //震动
        Vibrator vb= (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
        vb.vibrate(3000);



    }

    class A implements SensorEventListener {

        @Override
        public void onSensorChanged(SensorEvent event) {
            float []value=event.values;
                if (event.sensor.getType()==Sensor.TYPE_ACCELEROMETER) {
                    if (value[0] > 17 || value[1] > 17 || value[2] > 17) {
                        System.out.println("---" + value[0]);
                        //实现震动并发出声音
                    }

            }

        }

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

        }
    }
}