小弟我的位置 - 根据地名查寻具体地点

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▪小弟我的位置我的位置每一台电脑都要申请属于自己的android:apiKey,要是使用别人的android:apiKey, 则地图只显示方格,不会有实际的地图出现，并且在Android虚拟机重建或者重装电脑的操作系统的时候也要.........

▪ 根据地名查寻具体地点根据地名查找具体地点每一台电脑都要申请属于自己的android:apiKey,要是使用别人的android:apiKey, 则地图只显示方格,不会有实际的地图出现，并且在Android虚拟机重建或者重装电脑的操作系.........

▪ 百度map应用开发（一）百度地图应用开发（一）百度地图应用开发（一）最近对LBS比较感兴趣，在研究百度地图。先了解下百度地图的大概吧！ http://dev.baidu.com/wiki/imap/index.php?title=Android%E5%B9%B3%E5%8F%B0/%E5%BC%80%E.........

[1]小弟我的位置

来源: 互联网发布时间: 2014-02-18

我的位置

每一台电脑都要申请属于自己的android:apiKey,要是使用别人的android:apiKey,

则地图只显示方格,不会有实际的地图出现，并且在Android虚拟机重建或者重装电脑的操作系统的时候

也要重新申请android:apiKey，关于如何申请，我在“申请Google Map服务”中已说得很详细。

新建一个地图项目。

在main.xml中：

<?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">

<com.google.android.maps.MapView

android:id="@+id/mapview"

android:clickable="true" android:enabled="true"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:apiKey="0Pm9QrsSh_mwtc6rMyqZMRu71qFpIB51UXVWHmg" />

</LinearLayout>

在MyOverlayImpl.java中：

package com.li.googlemapproject;

import java.util.ArrayList;

import java.util.List;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.Context;

import android.content.DialogInterface;

import android.graphics.drawable.Drawable;

import com.google.android.maps.ItemizedOverlay;

import com.google.android.maps.OverlayItem;

public class MyOverlayImpl extends ItemizedOverlay<OverlayItem> {

private List<OverlayItem> allOverlayItems = new ArrayList<OverlayItem>();

private Context context = null;

public MyOverlayImpl(Drawable defaultMarker, Context context) {

super(boundCenter(defaultMarker));

this.context = context;

}

@Override

protected OverlayItem createItem(int i) {

return this.allOverlayItems.get(i);

}

@Override

public int size() {

return this.allOverlayItems.size();

}

@Override

protected boolean onTap(int index) { // 单击标记图片之后的操作

OverlayItem item = this.allOverlayItems.get(index); // 取得指定的点

Dialog dialog = new AlertDialog.Builder(this.context)

.setIcon(R.drawable.pic_m).setTitle(item.getTitle())

.setMessage(item.getSnippet())

.setPositiveButton("关闭", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

}

}).create();

dialog.show();

return true;

}

public void addOverlayItem(OverlayItem item) {

this.allOverlayItems.add(item);

super.populate();

}

在PaintLineOverlay.java中：

package com.li.googlemapproject;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.Paint.Style;

import android.graphics.Point;

import com.google.android.maps.GeoPoint;

import com.google.android.maps.MapView;

import com.google.android.maps.Overlay;

import com.google.android.maps.Projection;

public class PaintLineOverlay extends Overlay {

private GeoPoint beginGeoPoint = null;

private GeoPoint endGeoPoint = null;

public PaintLineOverlay(GeoPoint beginGeoPoint, GeoPoint endGeoPoint) {

this.beginGeoPoint = beginGeoPoint;

this.endGeoPoint = endGeoPoint;

}

@Override

public void draw(Canvas canvas, MapView mapView, boolean shadow) {

Paint paint = new Paint();

paint.setStyle(Style.FILL_AND_STROKE);

paint.setStrokeWidth(3);

paint.setColor(Color.RED);

Point beginPoint = new Point();

Point endPoint = new Point();

Projection projection = mapView.getProjection();

projection.toPixels(this.beginGeoPoint, beginPoint);

projection.toPixels(this.endGeoPoint, endPoint);

canvas.drawLine(beginPoint.x, beginPoint.y, endPoint.x, endPoint.y,

paint);

}

在PaintPointOverlay.java中：

package com.li.googlemapproject;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.Point;

import com.google.android.maps.GeoPoint;

import com.google.android.maps.MapView;

import com.google.android.maps.Overlay;

import com.google.android.maps.Projection;

public class PaintPointOverlay extends Overlay {

private GeoPoint geoPoint = null;

public PaintPointOverlay(GeoPoint geoPoint) {

this.geoPoint = geoPoint;

}

@Override

public void draw(Canvas canvas, MapView mapView, boolean shadow) {

Point point = new Point();

Projection projection = mapView.getProjection();

projection.toPixels(this.geoPoint, point); // 将地图上坐标的点设置为绘图屏幕的点

Paint paint = new Paint();

paint.setColor(Color.RED);

canvas.drawCircle(point.x, point.y, 6, paint);

}

在MyGoogleMapDemo.java中：

package com.li.googlemapproject;

import android.content.Context;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

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.MyLocationOverlay;

public class MyGoogleMapDemo extends MapActivity {

private MapView mapView = null;

private int longitudeE6 = 0;

private int latitudeE6 = 0;

private LocationManager locationManager = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

super.setContentView(R.layout.main);

this.mapView = (MapView) super.findViewById(R.id.mapview); // 取得地图视图

this.mapView.setBuiltInZoomControls(true);

// 给定一个坐标：北海银滩的坐标：109.15，21.40

this.longitudeE6 = (int) (109.15 * 1E6);

this.latitudeE6 = (int) (21.40 * 1E6);

GeoPoint point = new GeoPoint(this.latitudeE6, this.longitudeE6); // 要标记的坐标

MyLocationOverlay myloc = new MyLocationOverlay(this, this.mapView);

myloc.enableMyLocation(); // 注册GPS更新我的位置

myloc.enableCompass(); // 开启磁场感应

this.mapView.getOverlays().add(myloc);

MapController mapController = this.mapView.getController();

mapController.animateTo(point); // 设置坐标的动画

mapController.setCenter(point);

mapController.setZoom(16); // 最大的级别是16

this.locationManager = (LocationManager) super

.getSystemService(Context.LOCATION_SERVICE);

this.locationManager.requestLocationUpdates(

LocationManager.GPS_PROVIDER, 0, 0, new LocationListenerImpl());

}

private class LocationListenerImpl implements LocationListener {

public void onLocationChanged(Location location) {

MyGoogleMapDemo.this.longitudeE6 = (int) (location.getLongitude() * 1E6);

MyGoogleMapDemo.this.latitudeE6 = (int) (location.getLatitude() * 1E6);

}

public void onProviderDisabled(String provider) {

// TODO Auto-generated method stub

}

public void onProviderEnabled(String provider) {

// TODO Auto-generated method stub

}

public void onStatusChanged(String provider, int status, Bundle extras) {

// TODO Auto-generated method stub

}

@Override

protected boolean isRouteDisplayed() {

return false;

}

在AndroidManifest.xml中修改权限：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.li.googlemapproject"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="15" />

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

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

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name=".MyGoogleMapDemo"

android:label="@string/title_activity_my_google_map_demo" >

<intent-filter>

</intent-filter>

</activity>

<uses-library android:name="com.google.android.maps" />

</application>

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

</manifest>

[2] 根据地名查寻具体地点

来源: 互联网发布时间: 2014-02-18

根据地名查找具体地点

每一台电脑都要申请属于自己的android:apiKey,要是使用别人的android:apiKey,

则地图只显示方格,不会有实际的地图出现，并且在Android虚拟机重建或者重装电脑的操作系统的时候

也要重新申请android:apiKey，关于如何申请，我在“申请Google Map服务”中已说得很详细。

新建一个地图项目。

准备两个图片，名字分别为：pic_m、arrow

在main.xml中：

<?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">

<TableLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:orientation="vertical"

android:layout_width="fill_parent"

android:layout_height="wrap_content">

<EditText

android:id="@+id/msg"

android:layout_width="200px"

android:layout_height="wrap_content"/>

<Button

android:id="@+id/search"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="检索周边信息" />

</TableRow>

</TableLayout>

<com.google.android.maps.MapView

android:id="@+id/mapview"

android:clickable="true" android:enabled="true"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:apiKey="0Pm9QrsSh_mwtc6rMyqZMRu71qFpIB51UXVWHmg" />

</LinearLayout>

在MyOverlayImpl.java中：

package com.li.geocode;

import java.util.ArrayList;

import java.util.List;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.Context;

import android.content.DialogInterface;

import android.graphics.drawable.Drawable;

import com.google.android.maps.ItemizedOverlay;

import com.google.android.maps.OverlayItem;

public class MyOverlayImpl extends ItemizedOverlay<OverlayItem> {

private List<OverlayItem> allOverlayItems = new ArrayList<OverlayItem>();

private Context context = null;

public MyOverlayImpl(Drawable defaultMarker, Context context) {

super(boundCenter(defaultMarker));

this.context = context;

}

protected OverlayItem createItem(int i) {

return this.allOverlayItems.get(i);

}

public int size() {

return this.allOverlayItems.size();

}

protected boolean onTap(int index) { // 单击标记图片之后的操作

OverlayItem item = this.allOverlayItems.get(index); // 取得指定的点

Dialog dialog = new AlertDialog.Builder(this.context)

.setIcon(R.drawable.pic_m).setTitle(item.getTitle())

.setMessage(item.getSnippet())

.setPositiveButton("关闭", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

}

}).create();

dialog.show();

return true;

}

public void addOverlayItem(OverlayItem item) {

this.allOverlayItems.add(item);

super.populate();

}

在MyGeocodeDemo.java中：

package com.li.geocode;

import java.io.InputStream;

import java.net.URL;

import java.net.URLEncoder;

import java.util.HashMap;

import java.util.Map;

import java.util.Scanner;

import org.json.JSONArray;

import org.json.JSONObject;

import com.google.android.maps.GeoPoint;

import com.google.android.maps.MapActivity;

import com.google.android.maps.MapView;

import com.google.android.maps.OverlayItem;

import android.graphics.drawable.Drawable;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

public class MyGeocodeDemo extends MapActivity {

private EditText msg = null;

private Button search = null;

private MapView mapView = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

super.setContentView(R.layout.main);

this.search = (Button) super.findViewById(R.id.search);

this.msg = (EditText) super.findViewById(R.id.msg);

this.mapView = (MapView) super.findViewById(R.id.mapview);

this.search.setOnClickListener(new SearchOnClickListenerImpl());

}

private class SearchOnClickListenerImpl implements OnClickListener {

public void onClick(View v) {

String msg = MyGeocodeDemo.this.msg.getText().toString() ;

new SearchAsyncTask(msg).execute(0);

}

// 此时要根据异步处理的工具类来向Google上进行数据的提交操作，而后通过返回的JSON数据解析出具体的数据内容

private class SearchAsyncTask extends AsyncTask<Integer, String, Integer> {

private String location;

public SearchAsyncTask(String location) {

this.location = location;

}

@Override

protected void onProgressUpdate(String... values) {

GeoPoint point = new GeoPoint(

(int) (Double.parseDouble(values[0]) * 1E6),

(int) (Double.parseDouble(values[1]) * 1E6));

OverlayItem overlayItem = new OverlayItem(point, "您的位置！", values[2]);

Drawable drawable = MyGeocodeDemo.this.getResources().getDrawable(

R.drawable.arrow);

MyOverlayImpl mol = new MyOverlayImpl(drawable, MyGeocodeDemo.this);

mol.addOverlayItem(overlayItem) ;

MyGeocodeDemo.this.mapView.getOverlays().add(mol) ;

MyGeocodeDemo.this.mapView.setBuiltInZoomControls(true) ;

MyGeocodeDemo.this.mapView.getController().animateTo(point) ;

}

@Override

protected Integer doInBackground(Integer... arg0) {

Map<String, String> map = null;

try {

map = this.parseJson(this.location);

} catch (Exception e) {

e.printStackTrace();

}

if ("OK".equals(map.get("status"))) { // 操作正常

this.publishProgress(map.get("latitude"), map.get("longitude"),

map.get("address")); // 将address数据返回

} else {

this.publishProgress("没有查询结果！");

}

return null;

}

private Map<String, String> parseJson(String location) throws Exception {

Map<String, String> allMap = new HashMap<String, String>();

StringBuffer buf = new StringBuffer();

InputStream input = null;

try {

URL url = new URL(

"http://maps.google.com/maps/api/geocode/json?address="

+ URLEncoder.encode(location, "UTF-8")

+ "&sensor=false");

input = url.openStream();

Scanner scan = new Scanner(input);

while (scan.hasNext()) {

buf.append(scan.next()); // 所有的数据都保存在字符串里面

}

} catch (Exception e) {

e.printStackTrace();

throw e;

} finally {

input.close();

}

JSONObject allData = new JSONObject(buf.toString());

allMap.put("status", allData.getString("status"));

JSONArray jsonArr = allData.getJSONArray("results");

JSONObject jsonObj = jsonArr.getJSONObject(0);

allMap.put("address", jsonObj.getString("formatted_address"));

JSONObject locationJsonObj = jsonObj.getJSONObject("geometry")

.getJSONObject("location");

allMap.put("latitude", locationJsonObj.getString("lat")) ;

allMap.put("longitude", locationJsonObj.getString("lng")) ;

return allMap;

}

@Override

protected boolean isRouteDisplayed() {

// TODO Auto-generated method stub

return false;

}

在AndroidManifest.xml中修改权限：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.li.geocode"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="15" />

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

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name=".MyGeocodeDemo"

android:label="@string/title_activity_my_geocode_demo" >

<intent-filter>

</intent-filter>

</activity>

<uses-library android:name="com.google.android.maps" />

</application>

</manifest>

[3] 百度map应用开发（一）

来源: 互联网发布时间: 2014-02-18

百度地图应用开发（一）

最近对LBS比较感兴趣，在研究百度地图。先了解下百度地图的大概吧！

http://dev.baidu.com/wiki/imap/index.php?title=Android%E5%B9%B3%E5%8F%B0/%E5%BC%80%E5%8F%91%E6%8C%87%E5%8D%97

以上是百度地图在android平台上的开发指南。

基于百度地图的应用开发和google地图一样，需要一个Key，所以我们要申请一下，相对于google地图的Key来说，百度地图的Key的申请是很简单的。

申请Key的网址： http://dev.baidu.com/wiki/static/imap/key/ 当然要求是你必须得注册百度。

在百度地图的应用开发中，在Manifest要添加如下权限：

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

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

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

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

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

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

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

具体权限是什么大家可以查下文档，在这里就不多说了。另外还要加上android版本的支持，如下：

<supports-screens android:largeScreens="true"

android:normalScreens="true" android:smallScreens="true"

android:resizeable="true" android:anyDensity="true"/>

<uses-sdk android:minSdkVersion="3"></uses-sdk>

当然还要导入支持百度地图开发的相关的包（指南上面有下载），以下是我的项目文件：

main.xml

<?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"
    >
<com.baidu.mapapi.MapView android:id="@+id/bmapsView"
        android:layout_width="fill_parent" android:layout_height="fill_parent"
        android:clickable="true" />
</LinearLayout>

MainActivity.java

 1 package com.baidumap;
 2 
 3 import com.baidu.mapapi.BMapManager;
 4 import com.baidu.mapapi.GeoPoint;
 5 import com.baidu.mapapi.MapActivity;
 6 import com.baidu.mapapi.MapController;
 7 import com.baidu.mapapi.MapView;
 8 
 9 import android.app.Activity;
10 import android.os.Bundle;
11 
12 public class MainActivity extends MapActivity {
13     private BMapManager mBMapMan;
14     @Override
15     public void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.main);
18         mBMapMan = new BMapManager(getApplication());
19         mBMapMan.init("205114502786B06C4C95CEB0F55822F25E46AED2", null);
20         super.initMapActivity(mBMapMan);
21          
22         MapView mMapView = (MapView) findViewById(R.id.bmapsView);
23         mMapView.setBuiltInZoomControls(true);  //设置启用内置的缩放控件
24          
25         mMapView.setTraffic(true);
26         
27         MapController mMapController = mMapView.getController();  // 得到mMapView的控制权,可以用它控制和驱动平移和缩放
28         GeoPoint point = new GeoPoint((int) (23.141238 * 1E6),
29                 (int) (113.342331 * 1E6));  //用给定的经纬度构造一个GeoPoint，单位是微度 (度 * 1E6)
30         mMapController.setCenter(point);  //设置地图中心点
31         mMapController.setZoom(12);    //设置地图zoom级别
32     }
33 
34     @Override
35     protected void onDestroy() {
36         if (mBMapMan != null) {
37             mBMapMan.destroy();
38             mBMapMan = null;
39         }
40         super.onDestroy();
41     }
42     @Override
43     protected void onPause() {
44         if (mBMapMan != null) {
45             mBMapMan.stop();
46         }
47         super.onPause();
48     }
49     @Override
50     protected void onResume() {
51         if (mBMapMan != null) {
52             mBMapMan.start();
53         }
54         super.onResume();
55     }
56     @Override
57     protected boolean isRouteDisplayed() {
58         // TODO Auto-generated method stub
59         return false;
60     }
61 }

运行结果如下：