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。

摘自 jamin0107

补充：移动开发 , Android ,