利用Sensor實現android手機類似於微信搖一搖

感應器有幾種類型：
方向感應器： Sensor.TYPE_ORIENTATION
加速度(重力)感應器： Sensor.TYPE_ACCELEROMETER
光線感應器: Sensor.TYPE_LIGHT
磁場感應器： Sensor.TYPE_MAGNETIC_FIELD
距離(臨近性)感應器： Sensor.TYPE_PROXIMITY
溫度感應器： Sensor.TYPE_TEMPERATURE

 

這裡我們利用的是加速度感應器

 

 

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;@Overridepublic 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() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubtv.setText("文本複原");}});sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);vibrator = (Vibrator) getSystemService(Service.VIBRATOR_SERVICE);}@Overrideprotected void onPause() {// TODO Auto-generated method stubsuper.onPause();sensorManager.unregisterListener(this);}@Overrideprotected void onResume() {// TODO Auto-generated method stubsuper.onResume();sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);}@Overridepublic void onAccuracyChanged(Sensor sensor, int accuracy) {//當感應器精度改變時回調該方法，Do nothing.}@Overridepublic void onSensorChanged(SensorEvent event) {int sensorType = event.sensor.getType();//values[0]:X軸，values[1]：Y軸，values[2]：Z軸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("搖一搖");//搖動手機後，再伴隨震動提示~~vibrator.vibrate(500);}}}}

記得在onresume和onpause的時候開關sensor的監聽事件。

如果想調整sensor的敏感程度，就去修改，value[0,1,2] 大於的上限。