android中关于百度地图的使用
在android手机上使用百度地图来定位的资料在网上很难找到，经过两天的折腾，终于搞出来了。下面的代码已经实现完整定位，需要注意的就是，如果你的百度地图的底图未显示出来，请确保你手机能使用GPRS(以移动为例)或WIFI联网，要使用精确定位的话，也必须要打开GPS。下面我们直接上代码，代码说明，百度里面有，一看就知道：
step1 AndroidManifest.xml文件
1
<?
xml version="1.0" encoding="utf-8"
?>
2
<
manifest
xmlns:android
="http://schemas.android.com/apk/res/android"
3
package
="com.studio.basf.mapdemo"
android:versionCode
="1"
4
android:versionName
="1.0"
>
5
<
application
android:icon
="@drawable/icon"
android:label
="@string/app_name"
6
android:name
="MapManagerApplication"
>
7
<
activity
android:name
=".MainActivity"
android:label
="@string/app_name"
>
8
<
intent-filter
>
9
<
action
android:name
="android.intent.action.MAIN"
/>
10
<
category
android:name
="android.intent.category.LAUNCHER"
/>
11
</
intent-filter
>
12
</
activity
>
13
</
application
>
14
<
uses-permission
android:name
="android.permission.ACCESS_NETWORK_STATE"
></
uses-permission
>
15
<
uses-permission
android:name
="android.permission.ACCESS_FINE_LOCATION"
></
uses-permission
>
16
<
uses-permission
android:name
="android.permission.INTERNET"
></
uses-permission
>
17
<
uses-permission
android:name
="android.permission.WRITE_EXTERNAL_STORAGE"
></
uses-permission
>
18
<
uses-permission
android:name
="android.permission.ACCESS_WIFI_STATE"
></
uses-permission
>
19
<
uses-permission
android:name
="android.permission.CHANGE_WIFI_STATE"
></
uses-permission
>
20
<
uses-permission
android:name
="android.permission.READ_PHONE_STATE"
></
uses-permission
>
21
<
supports-screens
android:largeScreens
="true"
22
android:normalScreens
="true"
android:smallScreens
="true"
23
android:resizeable
="true"
android:anyDensity
="true"
/>
24
<
uses-sdk
android:minSdkVersion
="4"
/>
25
</
manifest
>
step2 首先建立一个全局应用类，主要是创建一个BMapManager实例，为了方便管理
1
package
com.studio.basf.mapdemo;
2
3
import
android.app.Application;
4
5
import
com.baidu.mapapi.BMapManager;
6
import
com.baidu.mapapi.MKEvent;
7
import
com.baidu.mapapi.MKGeneralListener;
8
9
public
class
MapManagerApplication
extends
Application {
10
BMapManager bMapManager
=
null
;
11
12
static
class
MyGeneralListener
implements
MKGeneralListener {
13
14
@Override
15
public
void
onGetNetworkState(
int
iError) {
16
17
}
18
19
@Override
20
public
void
onGetPermissionState(
int
iError) {
21
if
(iError
==
MKEvent.ERROR_PERMISSION_DENIED) {
22
23
}
24
}
25
}
26
27
@Override
28
public
void
onCreate() {
29
//
TODO Auto-generated method stub
30
bMapManager
=
new
BMapManager(
this
);
31
bMapManager.init(
"
你的key
"
,
new
MyGeneralListener());
32
}
33
}
step3 继承MapActivity，同时实现LocationListener接口
1
package
com.studio.basf.mapdemo;
2
3
import
android.location.Location;
4
import
android.os.Bundle;
5
6
import
com.baidu.mapapi.BMapManager;
7
import
com.baidu.mapapi.GeoPoint;
8
import
com.baidu.mapapi.LocationListener;
9
import
com.baidu.mapapi.MKLocationManager;
10
import
com.baidu.mapapi.MapActivity;
11
import
com.baidu.mapapi.MapController;
12
import
com.baidu.mapapi.MapView;
13
import
com.baidu.mapapi.MyLocationOverlay;
14
15
public
class
MainActivity
extends
MapActivity
implements
LocationListener {
16
private
BMapManager mBMapMan
=
null
;
17
private
MapView mMapView
=
null
;
18
private
MapController mMapController
=
null
;
19
private
MKLocationManager locationManager
=
null
;
20
21
/**
Called when the activity is first created.
*/
22
@Override
23
public
void
onCreate(Bundle savedInstanceState) {
24
super
.onCreate(savedInstanceState);
25
setContentView(R.layout.main);
26
27
mBMapMan
=
((MapManagerApplication) getApplication()).bMapManager;
28
if
(mBMapMan
==
null
) {
29
((MapManagerApplication) getApplication()).bMapManager
=
new
BMapManager(
30
getApplication());
31
((MapManagerApplication) getApplication()).bMapManager.init(
32
"
你的key
"
,
33
new
MapManagerApplication.MyGeneralListener());
34
mBMapMan
=
((MapManagerApplication) getApplication()).bMapManager;
35
}
36
super
.initMapActivity(mBMapMan);
37
38
locationManager
=
mBMapMan.getLocationManager();
39
locationManager.requestLocationUpdates(
this
);
40
41
mMapView
=
(MapView) findViewById(R.id.bmapsView);
42
mMapView.setBuiltInZoomControls(
true
);
//
设置启用默认的缩放控件
43
44
mMapController
=
mMapView.getController();
//
得到mMapView的控制权,可以用它控制和驱动平移和缩放
45
mMapController.setZoom(
12
);
//
设置地图zoom级别
46
47
MyLocationOverlay mylocTest
=
new
MyLocationOverlay(
this
, mMapView);
48
mylocTest.enableMyLocation();
49
mylocTest.enableCompass();
50
mMapView.getOverlays().add(mylocTest);
51
}
52
53
@Override
54
public
void
onLocationChanged(Location location) {
55
//
TODO Auto-generated method stub
56
57
if
(location
!=
null
) {
58
mMapController.animateTo(
new
GeoPoint(
59
(
int
) (location.getLatitude()
*
1E6), (
int
) (location
60
.getLongitude()
*
1E6)));
61
}
62
}
63
64
@Override
65
protected
void
onDestroy() {
66
//
TODO Auto-generated method stub
67
if
(mBMapMan
!=
null
) {
68
mBMapMan.destroy();
69
((MapManagerApplication) getApplication()).bMapManager
=
null
;
70
mBMapMan
=
null
;
71
}
72
super
.onDestroy();
73
}
74
75
@Override
76
protected
void
onPause() {
77
//
TODO Auto-generated method stub
78
if
(mBMapMan
!=
null
) {
79
mBMapMan.stop();
80
}
81
super
.onPause();
82
}
83
84
@Override
85
protected
void
onResume() {
86
//
TODO Auto-generated method stub
87
if
(mBMapMan
!=
null
) {
88
mBMapMan.start();
89
}
90
super
.onResume();
91
}
92
93
@Override
94
protected
boolean
isRouteDisplayed() {
95
//
TODO Auto-generated method stub
96
return
false
;
97
}
98
}