android 获取gps位置并标注

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <com.google.android.maps.MapView
        android:id="@+id/mapview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:apiKey="你的api账号" />
    
</LinearLayout>

package com.clickmapview.main;

import java.util.ArrayList;
import java.util.List;


import android.app.PendingIntent;
import android.app.ProgressDialog;
import android.app.PendingIntent.CanceledException;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.provider.Settings;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;


import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;


public class TestMapviewActivity extends MapActivity {
// 地图控件的变量
private MapController mapController;
private List<GeoPoint> updatePoints = new ArrayList<GeoPoint>();
private List<Overlay> mapOverlays;
private MapView mapView;

LocationManager manager;
Location location;

private static final int ZOOM_IN=Menu.FIRST;   
private static final int ZOOM_OUT=Menu.FIRST+1;


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 地图控件初始化
mapView = (MapView) findViewById(R.id.mapview);
mapView.setClickable(true);
mapView.setBuiltInZoomControls(true);
mapController = mapView.getController();
mapView.setTraffic(false);// 交通图
mapView.setSatellite(true);// 卫星图
// mapView.setStreetView(true);//街景
mapOverlays = mapView.getOverlays();
mapController.setZoom(18);

init();
}


@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
//为应用程序添加菜单  
public boolean onCreateOptionsMenu(Menu menu) {  
   super.onCreateOptionsMenu(menu);  
   menu.add(Menu.NONE,ZOOM_IN, 1, "卫星图").setIcon(


           android.R.drawable.ic_menu_edit);
   
   menu.add(Menu.NONE,ZOOM_OUT, 2, "交通图").setIcon(


           android.R.drawable.ic_btn_speak_now);
   return true;  
}  
public boolean onOptionsItemSelected(MenuItem item) {  
   super.onOptionsItemSelected(item);  
   switch (item.getItemId())  
   {  
       case ZOOM_IN:  
           //放大  
           //mapController.zoomIn();  
        mapView.setSatellite(true);
           break;
       case ZOOM_OUT:  
           //缩小  
           //mapController.zoomOut();  
        mapView.setSatellite(false);
        break;
   }  
   return false;  
}  

/*
 * 监测gps是否开启
 */
private String isGPSEnable() {
/* 用Setting.System来读取也可以，只是这是更旧的用法
String str = Settings.System.getString(getContentResolver(),
Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
*/

String str = Settings.Secure.getString(getContentResolver(),
Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
Log.v("GPS", str);
if (str != "") {
toggleGPS();
return str;//.contains("gps");
}
else{
toggleGPS();
return "no";
}
}
/**
 * 开启gps
 */
private void toggleGPS() {
Intent gpsIntent = new Intent();
Log.i("gps", "gps");
gpsIntent.setClassName("com.android.settings",
"com.android.settings.widget.SettingsAppWidgetProvider");
gpsIntent.addCategory("android.intent.category.ALTERNATIVE");
gpsIntent.setData(Uri.parse("custom:3"));
try {
PendingIntent.getBroadcast(this, 0, gpsIntent, 0).send();
}
catch (CanceledException e) {
e.printStackTrace();
}
}
private ProgressDialog pDialog;
private Handler handler; 
 
private void init(){
 
pDialog = new ProgressDialog(this); 
        pDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        pDialog.setMessage("正在定位中...."); 
        pDialog.show();
        
   new Thread(){
   public void run(){ 
    manager=(LocationManager)getSystemService(LOCATION_SERVICE);   
    if(manager.isProviderEnabled(LocationManager.GPS_PROVIDER)){   
    location = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    Log.e("locationGps", String.valueOf(location.getLatitude()));
    }else{ //通过基站
    location = manager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    Log.e("locationNet", String.valueOf(location.getLatitude()));
    }
    Message message = new Message();      
                message.what = 1;      
                handler.sendMessage(message);
   }
   }.start();
   
   handler = new Handler(){    
            public void handleMessage(Message msg) {            
                switch (msg.what) {                     
                case 1:   
                Log.e("location", String.valueOf(location.getLatitude()));
                updateView(location);
                /*
                manager=(LocationManager)getSystemService(LOCATION_SERVICE);   
        if(manager.isProviderEnabled(LocationManager.GPS_PROVIDER)){   
        //location = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60000, 5, locationListener);
        }else{ //通过基站
        //location = manager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        manager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 60000, 5, locationListener);
        }
        */
            pDialog.dismiss();
                    break;      
                }      
                super.handleMessage(msg);  
            }                
        };   
   
    }
    LocationListener locationListener = 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);
}
};
public void updateView(Location location){
// 定义一个经纬度
GeoPoint gpoint = new GeoPoint((int) (location.getLatitude()* 1000000),(int) (location.getLongitude()* 1000000));
System.out.println(String.valueOf(location.getLatitude())+"//Longitude:"+String.valueOf(location.getLongitude()));
Resources r = this.getResources();
Drawable drawale = r.getDrawable(R.drawable.current);
// 添加一点标注位置
updatePoints.add(gpoint);
        //该点的信息
OverlayItem overlayitem = new OverlayItem(gpoint, "标题", "内容");
MyItemizedOverlay iconOverlay = new MyItemizedOverlay(updatePoints,
drawale, this);
// 添加图层
iconOverlay.addOverlay(overlayitem);
mapOverlays.add(iconOverlay);
// 移到中间
mapController.animateTo(gpoint);

Toast.makeText(this, isGPSEnable(), 2000).show();
}

}

package com.clickmapview.main;


import java.util.ArrayList;
import java.util.List;


import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.widget.Toast;


import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;


public class MyItemizedOverlay extends ItemizedOverlay<OverlayItem> {

private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
private Context context;
public MyItemizedOverlay(List<GeoPoint> points,Drawable defaultMarker,Context context) {
// Wrap this around our defaultMarker
super(boundCenterBottom(defaultMarker));
this.context=context;
// TODO Auto-generated constructor stub
}

// Get ArrayList items
@Override
protected OverlayItem createItem(int i) {
// TODO Auto-generated method stub
return mOverlays.get(i);
}
//  OverlayItem 
@Override
public int size() {
// TODO Auto-generated method stub
return mOverlays.size();
}
// 点击地图标注显示的内容
@Override
protected boolean onTap(int index) {
//这个方法的重写弹出信息等
return true;
}
@Override
public void draw(Canvas canvas, MapView mapView, boolean shadow) {
// TODO Auto-generated method stub
super.draw(canvas, mapView, shadow);
}
// Define a method in order to add new OverlayItems to our ArrayList
public void addOverlay(OverlayItem overlay) {
// add OverlayItems
mOverlays.add(overlay);
populate();
}
//该方法的重写可以相应点击图标的区域内还是外
@Override
public boolean onTap(GeoPoint p, MapView mapView) {
// TODO Auto-generated method stub
//p获取的经纬度数据是整型变量,需要转换为float类型
float lat=p.getLatitudeE6();
float lon=p.getLongitudeE6();
//将当前的经纬度显示出来
Toast.makeText(context, "当前位置\n纬度:"+lat/1000000+"\n经度:"+lon/1000000, Toast.LENGTH_LONG).show();
return super.onTap(p, mapView);
}
}