android网络-GPS获取定位信息

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

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;
@Override
public 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() {

@Override
public 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() {

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub

}

@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
//
updateView(manager.getLastKnownLocation(provider));
}

@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
updateView(null);
}

@Override
public 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());
}
}