利用Sensor实现android手机类似于微信摇一摇

传感器有几种类型：
方向传感器： Sensor.TYPE_ORIENTATION
加速度(重力)传感器： Sensor.TYPE_ACCELEROMETER
光线传感器: Sensor.TYPE_LIGHT
磁场传感器： Sensor.TYPE_MAGNETIC_FIELD
距离(临近性)传感器： Sensor.TYPE_PROXIMITY
温度传感器： Sensor.TYPE_TEMPERATURE

这里我们利用的是加速度传感器

package com.jamin.sensor;    import android.app.Activity;  import android.app.Service;  import android.hardware.Sensor;  import android.hardware.SensorEvent;  import android.hardware.SensorEventListener;  import android.hardware.SensorManager;  import android.os.Bundle;  import android.os.Vibrator;  import android.util.Log;  import android.view.View;  import android.widget.Button;  import android.widget.TextView;    public class SensorTestActivity extends Activity implements SensorEventListener{   /** Called when the activity is first created. */       TextView tv = null;   Button button = null;   SensorManager sensorManager = null;   Vibrator vibrator = null;     @Override   public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);      button = (Button) findViewById(R.id.button1);    tv = (TextView) findViewById(R.id.textview1);    button.setOnClickListener(new View.OnClickListener() {       @Override     public void onClick(View v) {        // TODO Auto-generated method stub      tv.setText("文本复原");      }    });      sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);    vibrator = (Vibrator) getSystemService(Service.VIBRATOR_SERVICE);       }               @Override   protected void onPause() {      // TODO Auto-generated method stub    super.onPause();    sensorManager.unregisterListener(this);   }               @Override   protected void onResume() {      // TODO Auto-generated method stub    super.onResume();    sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);     }               @Override   public void onAccuracyChanged(Sensor sensor, int accuracy) {    //当传感器精度改变时回调该方法，Do nothing.   }         @Override   public void onSensorChanged(SensorEvent event) {          int sensorType = event.sensor.getType();    //values[0]:X轴，values[1]：Y轴，values[2]：Z轴    float[] values = event.values;    if(sensorType == Sensor.TYPE_ACCELEROMETER){        if((Math.abs(values[0])>17||Math.abs(values[1])>17||Math.abs(values[2])>17)){      Log.d("sensor ", "============ values[0] = " + values[0]);      Log.d("sensor ", "============ values[1] = " + values[1]);      Log.d("sensor ", "============ values[2] = " + values[2]);      tv.setText("摇一摇");      //摇动手机后，再伴随震动提示~~      vibrator.vibrate(500);     }        }   }                }

如果想调整sensor的敏感程度，就去修改，value[0,1,2] 大于的上限。

转自：http://blog.csdn.net/jamin0107/article/details/7297367