Android重力感应应用【安卓进化十七】

重力感应主要应用于游戏开发中，这个效果非常棒！主要是3个轴，简单理解：那个朝上，值为正，朝下值为负！这个效果我测试过了，由于在手机上才能实现重力感应，所以没有效果图。见谅！转载请标明出处：http://blog.csdn.net/wdaming1986/article/details/6752232

一、MainActivity。java的代码：

package com.ray.test; import android.app.Activity; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.os.Bundle; import android.widget.TextView; public class MainActivity extends Activity{ private SensorManager sensorMgr; private TextView show_TextView; Sensor sensor; private float x, y, z; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); show_TextView = (TextView)findViewById(R.id.text_view); sensorMgr = (SensorManager) getSystemService(SENSOR_SERVICE); sensor = sensorMgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER); SensorEventListener lsn = new SensorEventListener() { @Override public void onSensorChanged(SensorEvent e) { // TODO Auto-generated method stub x = e.values[SensorManager.DATA_X]; y = e.values[SensorManager.DATA_Y]; z = e.values[SensorManager.DATA_Z]; setTitle("x="+(int)x+","+"y="+(int)y+","+"z="+(int)z); show_TextView.setText("x="+(int)x+", "+"y="+(int)y+", "+"z="+(int)z); } @Override public void onAccuracyChanged(Sensor arg0, int arg1) { } }; //注册listener，第三个参数是检测的精确度 sensorMgr.registerListener(lsn, sensor, SensorManager.SENSOR_DELAY_GAME); } }

二、main.xml的代码：

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:id="@+id/text_view" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textSize="25pt" /> </LinearLayout>