sensor传感器-摇一摇

package com.example.day9sensor;import java.util.List;import android.app.Activity;import android.hardware.Sensor;import android.hardware.SensorEvent;import android.hardware.SensorEventListener;import android.hardware.SensorListener;import android.hardware.SensorManager;import android.os.Bundle;import android.os.SystemClock;import android.view.Menu;import android.view.MenuItem;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {TextView tv,tv1;boolean flag = true;private SensorManager manager;MyAcc acc;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                tv = (TextView) findViewById(R.id.tv);        tv1 = (TextView) findViewById(R.id.tv1);                acc = new MyAcc();                manager = (SensorManager) getSystemService(SENSOR_SERVICE);        //步骤2：使用传感器的管理器  获取当前设备中的所有传感器信息        List<Sensor> sensorList = manager.getSensorList(Sensor.TYPE_ALL);        for (Sensor sensor : sensorList) {tv.append("\r\n" + sensor.getName());}                //使用加速度传感器完成摇一摇功能        //1、获取到加速度传感器        Sensor sensorAcc = manager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);        //2、使用加速度传感器  注册一个监听        //参数1：监听器        //参数2：使用的传感器对象        //参数3：传感器精度            //  SENSOR_DELAY_NORMAL, 传感器的默认延时        //SENSOR_DELAY_UI,  传感器适用于 UI更新的延时        //SENSOR_DELAY_GAME,   传感器适用于 游戏的延时        //SENSOR_DELAY_FASTEST  传感器最快延时        manager.registerListener(acc, sensorAcc, SensorManager.SENSOR_DELAY_UI);    }        class MyAcc implements SensorEventListener {    //当传感器数据方法改变时调用该方法@Overridepublic void onSensorChanged(SensorEvent event) {// TODO Auto-generated method stubfloat x = event.values[0];float y = event.values[1];float z = event.values[2];tv1.setText(x + "\r\n" + y + "\r\n" + z + "\r\n");if(Math.abs(x) > 17 || Math.abs(y) > 17 || Math.abs(z) > 17){if(flag){Toast.makeText(MainActivity.this, "摇一摇", 0).show();}flag = false;new Thread(new Runnable() {@Overridepublic void run() {// TODO Auto-generated method stubSystemClock.sleep(10000);flag = true;}}).start();}}//当传感器精度方法改变时 调用该方法@Overridepublic void onAccuracyChanged(Sensor sensor, int accuracy) {// TODO Auto-generated method stub}}        @Override    protected void onPause() {    manager.unregisterListener(acc);    super.onPause();    }    }