一：申请key:

1.首先找到debugkeystore位置：

　　打开Eclipse--->Windows--->Preferences--->Android--->Build

一般是这样的路径C:\DocumentsandSettings\Administrator\.android\debug.keystore

2.在cmd中执行

keytool-list-aliasandroiddebugkey-keystore"C:\DocumentsandSettings\Administrator\.android\debug.keystore"-storepassandroid-keypassandroid

得到认证指纹(MD5)如：6F:C9:41:48:A5:F3:36:A5:D3:DD:B5:D1:CB:AC:47:88

3.打开申请key页面http://code.google.com/android/maps-api-signup.html

复制认证指纹(MD5)：到下面的Mycertificate'sMD5fingerprint

4.然后点击GenerateApikey

5.等到apikey:0Mg_koWoyZUhlluO4-i6-bq9WYMFbxKodZZMz2Q

二：设计main.xml如下：（将申请到得key设置在com.google.android.maps.MapView中如下所示）

Xml代码

1. <?xmlversion="1.0"encoding="utf-8"?>
2. <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
3. android:layout_width="fill_parent"
4. android:layout_height="fill_parent"
5. android:orientation="vertical">
6. <FrameLayout
7. android:id="@+id/map_layout"
8. android:layout_width="fill_parent"
9. android:layout_height="fill_parent"
10. android:orientation="vertical">
11. <com.google.android.maps.MapView
12. android:id="@+id/map_view"
13. android:layout_width="fill_parent"
14. android:layout_height="fill_parent"
15. android:apiKey="0Mg_koWoyZUhlluO4-i6-bq9WYMFbxKodZZMz2Q"
16. android:clickable="true"
17. android:enabled="true"/>
18. <LinearLayout
19. android:layout_width="wrap_content"
20. android:layout_height="wrap_content"
21. android:layout_gravity="center"
22. android:orientation="vertical"
23. android:paddingBottom="105dip">
24. <TextView
25. android:id="@+id/map_bubbleText"
26. android:layout_width="wrap_content"
27. android:layout_height="wrap_content"
28. android:background="@drawable/location_tips"
29. android:gravity="left|center"
30. android:maxEms="12"
31. android:paddingLeft="12dip"
32. android:paddingRight="10dip"
33. android:text="@string/load_tips"
34. android:textColor="#cfcfcf"
35. android:textSize="14sp"/>
36. </LinearLayout>
37. <LinearLayout
38. android:layout_width="wrap_content"
39. android:layout_height="wrap_content"
40. android:layout_gravity="center"
41. android:orientation="vertical">
42. <ImageView
43. android:id="@+id/point_image"
44. android:layout_width="wrap_content"
45. android:layout_height="wrap_content"
46. android:layout_gravity="center"
47. android:layout_marginBottom="30dip"
48. android:src="@drawable/point_start"/>
49. </LinearLayout>
50. </FrameLayout>
51. </LinearLayout>

三：创建MyLocationManager类主要用于管理经纬度获取方法实现

Java代码

1. packagecom.android.map;
3. importandroid.content.Context;
4. importandroid.location.Location;
5. importandroid.location.LocationListener;
6. importandroid.location.LocationManager;
7. importandroid.os.Bundle;
8. importandroid.util.Log;
10. publicclassMyLocationManager{
11. privatefinalStringTAG="FzLocationManager";
12. privatestaticContextmContext;
13. privateLocationManagergpsLocationManager;
14. privateLocationManagernetworkLocationManager;
15. privatestaticfinalintMINTIME=2000;
16. privatestaticfinalintMININSTANCE=2;
17. privatestaticMyLocationManagerinstance;
18. privateLocationlastLocation=null;
19. privatestaticLocationCallBackmCallback;
21. publicstaticvoidinit(Contextc,LocationCallBackcallback){
22. mContext=c;
23. mCallback=callback;
24. }
27. privateMyLocationManager(){
28. //Gps定位
29. gpsLocationManager=(LocationManager)mContext
30. .getSystemService(Context.LOCATION_SERVICE);
31. LocationgpsLocation=gpsLocationManager
32. .getLastKnownLocation(LocationManager.GPS_PROVIDER);
33. gpsLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
34. MINTIME,MININSTANCE,locationListener);
35. //基站定位
36. networkLocationManager=(LocationManager)mContext
37. .getSystemService(Context.LOCATION_SERVICE);
38. LocationnetworkLocation=gpsLocationManager
39. .getLastKnownLocation(LocationManager.GPS_PROVIDER);
40. networkLocationManager.requestLocationUpdates(
41. LocationManager.NETWORK_PROVIDER,MINTIME,MININSTANCE,
42. locationListener);
43. }
45. publicstaticMyLocationManagergetInstance(){
46. if(null==instance){
47. instance=newMyLocationManager();
48. }
49. returninstance;
50. }
52. privatevoidupdateLocation(Locationlocation){
53. lastLocation=location;
54. mCallback.onCurrentLocation(location);
55. }
58. privatefinalLocationListenerlocationListener=newLocationListener(){
60. publicvoidonStatusChanged(Stringprovider,intstatus,Bundleextras){
61. }
64. publicvoidonProviderEnabled(Stringprovider){
65. }
68. publicvoidonProviderDisabled(Stringprovider){
69. }
72. publicvoidonLocationChanged(Locationlocation){
73. Log.d(TAG,"onLocationChanged");
74. updateLocation(location);
75. }
76. };
78. publicLocationgetMyLocation(){
79. returnlastLocation;
80. }
82. privatestaticintENOUGH_LONG=1000*60;
84. publicinterfaceLocationCallBack{
85. /**
86. *当前位置
87. *@paramlocation
88. */
89. voidonCurrentLocation(Locationlocation);
90. }
93. publicvoiddestoryLocationManager(){
94. Log.d(TAG,"destoryLocationManager");
95. gpsLocationManager.removeUpdates(locationListener);
96. networkLocationManager.removeUpdates(locationListener);
97. }
98. }

四：创建MyMapOverlay抽象类，并继承Overlay，创建抽象方法

changePoint(GeoPointnewPoint,inttype)用于回调重新获取到的GeoPoint重新定位地图，并获取地址信息

Java代码

1. importandroid.view.MotionEvent;
2. importcom.google.android.maps.GeoPoint;
3. importcom.google.android.maps.MapView;
4. importcom.google.android.maps.Overlay;
5. //覆盖整个地图捕捉触控事件的OverLay
6. publicabstractclassMyMapOverlayextendsOverlay{
7. privateintpoint_X;
8. privateintpoint_Y;
9. privateGeoPointnewPoint;
10. publicMyMapOverlay(intx,inty){
11. point_X=x;
12. point_Y=y;
13. }
14. booleanflagMove=false;
15. //触控屏幕移动地图，重新根据屏幕中心点获取该点经纬度
16. @Override
17. publicbooleanonTouchEvent(MotionEventevent,MapViewmapView){
18. System.out.println("X->"+event.getX()+":"+point_X);
19. System.out.println("Y->"+event.getY()+":"+point_Y);
20. if(event.getAction()==MotionEvent.ACTION_DOWN){
21. changePoint(newPoint,1);
22. }elseif(event.getAction()==MotionEvent.ACTION_UP){
23. newPoint=mapView.getProjection().fromPixels(point_X,point_Y);
24. changePoint(newPoint,2);
25. }
26. returnfalse;
27. }
29. publicabstractvoidchangePoint(GeoPointnewPoint,inttype);
30. }

五：MyMapActivity继承MapActivity类并实现经纬度获取回调接口LocationCallBack。项目实现如下：

Java代码

1. packagecom.android.googlemap;
3. importjava.io.IOException;
4. importjava.util.List;
5. importjava.util.Locale;
7. importandroid.graphics.Rect;
8. importandroid.location.Address;
9. importandroid.location.Geocoder;
10. importandroid.location.Location;
11. importandroid.os.Bundle;
12. importandroid.os.Handler;
13. importandroid.os.Message;
14. importandroid.view.View;
15. importandroid.view.Window;
16. importandroid.widget.TextView;
18. importcom.android.map.MyLocationManager;
19. importcom.android.map.MyLocationManager.LocationCallBack;
20. importcom.android.map.MyMapOverlay;
21. importcom.google.android.maps.GeoPoint;
22. importcom.google.android.maps.MapActivity;
23. importcom.google.android.maps.MapController;
24. importcom.google.android.maps.MapView;
25. importcom.google.android.maps.Overlay;
28. publicclassMyMapActivityextendsMapActivityimplementsLocationCallBack{
31. privateMapViewmapView;
32. privateMapControllermMapCtrl;
33. privateMyLocationManagermyLocation;
34. privateList<Overlay>mapOverlays;
35. publicGeoPointlocPoint;
36. privateMyMapOverlaymOverlay;
37. privateTextViewdesText;
38. privateStringlost_tips;
39. privateintpoint_X;
40. privateintpoint_Y;
41. privateintstatusBarHeight;
43. publicfinalintMSG_VIEW_LONGPRESS=10001;
44. publicfinalintMSG_VIEW_ADDRESSNAME=10002;
45. publicfinalintMSG_GONE_ADDRESSNAME=10003;
47. @Override
48. publicvoidonCreate(BundlesavedInstanceState){
49. super.onCreate(savedInstanceState);
50. requestWindowFeature(Window.FEATURE_NO_TITLE);
51. setContentView(R.layout.main);
52. mapView=(MapView)findViewById(R.id.map_view);
53. desText=(TextView)this.findViewById(R.id.map_bubbleText);
54. lost_tips=getResources().getString(R.string.load_tips);
55. mapView.setBuiltInZoomControls(true);
56. mapView.setClickable(true);
57. mMapCtrl=mapView.getController();
58. point_X=this.getWindowManager().getDefaultDisplay().getWidth()/2;
59. point_Y=this.getWindowManager().getDefaultDisplay().getHeight()/2;
60. mOverlay=newMyMapOverlay(point_X,point_Y){
61. @Override
62. publicvoidchangePoint(GeoPointnewPoint,inttype){
63. if(type==1){
64. mHandler.sendEmptyMessage(MSG_GONE_ADDRESSNAME);
65. }else{
66. locPoint=newPoint;
67. mHandler.sendEmptyMessage(MSG_VIEW_LONGPRESS);
68. }
70. }
71. };
72. mapOverlays=mapView.getOverlays();
73. if(mapOverlays.size()>0){
74. mapOverlays.clear();
75. }
76. mapOverlays.add(mOverlay);
77. mMapCtrl.setZoom(12);
78. MyLocationManager.init(MyMapActivity.this.getApplicationContext(),
79. MyMapActivity.this);
80. myLocation=MyLocationManager.getInstance();
82. }
84. @Override
85. protectedvoidonResume(){
86. super.onResume();
88. }
90. @Override
91. protectedvoidonPause(){
92. super.onPause();
93. }
95. @Override
96. protectedbooleanisRouteDisplayed(){
97. //TODOAuto-generatedmethodstub
98. returnfalse;
99. }
101. publicvoidonCurrentLocation(Locationlocation){
102. if(locPoint==null){
103. locPoint=newGeoPoint((int)(location.getLatitude()*1E6),
104. (int)(location.getLongitude()*1E6));
105. mHandler.sendEmptyMessage(MSG_VIEW_LONGPRESS);
106. }
107. }
109. publicvoidchangePoint(GeoPointlocPoint){
111. }
113. /**
114. *通过经纬度获取地址
115. *
116. *@parampoint
117. *@return
118. */
119. privateStringgetLocationAddress(GeoPointpoint){
120. Stringadd="";
121. GeocodergeoCoder=newGeocoder(getBaseContext(),Locale.getDefault());
122. try{
123. List<Address>addresses=geoCoder.getFromLocation(
124. point.getLatitudeE6()/1E6,point.getLongitudeE6()/1E6,
125. 1);
126. Addressaddress=addresses.get(0);
127. intmaxLine=address.getMaxAddressLineIndex();
128. if(maxLine>=2){
129. add=address.getAddressLine(1)+address.getAddressLine(2);
130. }else{
131. add=address.getAddressLine(1);
132. }
133. }catch(IOExceptione){
134. add="";
135. e.printStackTrace();
136. }
137. returnadd;
138. }
140. /**
141. *
142. *用线程异步获取
143. */
144. RunnablegetAddressName=newRunnable(){
145. publicvoidrun(){
146. StringaddressName="";
147. while(true){
148. addressName=getLocationAddress(locPoint);
149. if(!"".equals(addressName)){
150. break;
151. }
152. }
153. Messagemsg=newMessage();
154. msg.what=MSG_VIEW_ADDRESSNAME;
155. msg.obj=addressName;
156. mHandler.sendMessage(msg);
157. }
158. };
160. privateHandlermHandler=newHandler(){
161. @Override
162. publicvoidhandleMessage(Messagemsg){
163. switch(msg.what){
164. caseMSG_VIEW_LONGPRESS://处理长按时间返回位置信息
165. {
166. if(null==locPoint)
167. return;
168. newThread(getAddressName).start();
169. desText.setVisibility(View.VISIBLE);
170. desText.setText(lost_tips);
171. mMapCtrl.animateTo(locPoint);
172. mapView.invalidate();
173. }
174. break;
175. caseMSG_VIEW_ADDRESSNAME:
176. desText.setText((String)msg.obj);
177. desText.setVisibility(View.VISIBLE);
178. if(statusBarHeight==0){
179. Rectframe=newRect();
180. getWindow().getDecorView().getWindowVisibleDisplayFrame(
181. frame);
182. statusBarHeight=frame.top;
183. point_Y-=statusBarHeight/2;
184. }
185. break;
186. caseMSG_GONE_ADDRESSNAME:
187. desText.setVisibility(View.GONE);
188. break;
189. }
190. }
191. };
193. //关闭程序也关闭定位
194. @Override
195. protectedvoidonDestroy(){
196. //TODOAuto-generatedmethodstub
197. super.onDestroy();
198. myLocation.destoryLocationManager();
199. }
201. }

六：在AndroidManifest.xml中不要忘了要添加访问网络和启动定位等的几个权限已经google地图库

Xml代码

1. <uses-permissionandroid:name="android.permission.INTERNET"/>
2. <uses-permissionandroid:name="android.permission.ACCESS_NETWORK_STATE"/>
3. <uses-permissionandroid:name="android.permission.ACCESS_COARSE_LOCATION"/>
4. <uses-permissionandroid:name="android.permission.ACCESS_FINE_LOCATION"/>
5. <!--在application里面添加google地图库如下（一定要记得添加）：-->
6. <applicationandroid:icon="@drawable/icon"android:label="@string/app_name">
7. <uses-libraryandroid:name="com.google.android.maps"/>
8. <activityandroid:name="com.android.googlemap.MyMapActivity"android:screenOrientation="portrait"
9. android:label="@string/app_name">
10. <intent-filter>
11. <actionandroid:name="android.intent.action.MAIN"/>
12. <categoryandroid:name="android.intent.category.LAUNCHER"/>
13. </intent-filter>
14. </activity>
15. </application>

七：运行效果：

1

2以后后重新获取如下：

提示：如果没有出现地图只出现地址信息背景是网格的，那就是key的问题，根据开始的方法找到自己开发的eclipse中sdk的debugkeystore位置重新申请key即可

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