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); } } } }
记得在onresume和onpause的时候开关sensor的监听事件。
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