设置每60秒，每移动十米向LocationProvider获取一次GPS的定位信息
当LocationProvider可用，不可用或定位信息改变时，调用updateView，更新显示
程序效果：按下按钮后，按要求更新定位信息的显示
DDMS的Emulator Control面板中Manual输入经度和纬度值，单击“send”,即可向模拟器发出GPS定位信息(模拟手机中GPS开启状态下自动获取定位信息)
先加上两个权限，第二个为获取定位信息的权限
<uses-permission android:name="android.permission.INTERNET"/><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
主activity
package com.song;import android.app.Activity;import android.location.Location;import android.location.LocationListener;import android.location.LocationManager;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;public class C613_Googlemap2Activity extends Activity {/** Called when the activity is first created. */Button button;TextView textview;LocationManager manager;Location location;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);textview=(TextView)findViewById(R.id.textview);button=(Button)findViewById(R.id.button);manager=(LocationManager)getSystemService(LOCATION_SERVICE);//从GPS_PROVIDER获取最近的定位信息location=manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);updateView(location);//判断GPS是否可用System.out.println("state="+manager.isProviderEnabled(LocationManager.GPS_PROVIDER));button.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//设置每60秒，每移动十米向LocationProvider获取一次GPS的定位信息//当LocationProvider可用，不可用或定位信息改变时，调用updateView,更新显示manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60000, 10, new LocationListener() {@Overridepublic void onStatusChanged(String provider, int status, Bundle extras) {// TODO Auto-generated method stub}@Overridepublic void onProviderEnabled(String provider) {// TODO Auto-generated method stub//updateView(manager.getLastKnownLocation(provider));}@Overridepublic void onProviderDisabled(String provider) {// TODO Auto-generated method stubupdateView(null);}@Overridepublic void onLocationChanged(Location location) {// TODO Auto-generated method stub//location为变化完的新位置，更新显示updateView(location);}});}});}//更新显示内容的方法public void updateView(Location location){StringBuffer buffer=new StringBuffer();if(location==null){textview.setText("未获得服务");return;}buffer.append("经度："+location.getLongitude()+"\n");buffer.append("纬度："+location.getLatitude()+"\n");buffer.append("高度："+location.getAltitude()+"\n");buffer.append("速度："+location.getSpeed()+"\n");buffer.append("方向："+location.getBearing()+"\n");textview.setText(buffer.toString());}}
显示效果
