Android百度地图开发（三）范围搜索

1.新建项目

将地图API添加进classpath中：

2.在activity_main.xml中添加一个MapView，用来显示地图：

1<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
2    android:layout_width="fill_parent"
3    android:layout_height="fill_parent"
4    android:orientation="vertical" >
5
6    <!-- 添加显示地图的控件 -->
7
8    <com.baidu.mapapi.MapView
9        android:id="@+id/bmapView"
10        android:layout_width="fill_parent"
11        android:layout_height="fill_parent"
12        android:clickable="true" />
13
14</LinearLayout>

3.修改AndroidManifest.xml文件，指定用户权限

1<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
2    </uses-permission>
3    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
4    </uses-permission>
5    <uses-permission android:name="android.permission.INTERNET" >
6    </uses-permission>
7    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
8    </uses-permission>
9    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >
10    </uses-permission>
11    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" >
12    </uses-permission>
13    <uses-permission android:name="android.permission.READ_PHONE_STATE" >
14    </uses-permission>
15    <uses-permission android:name="android.permission.CALL_PHONE" >
16    </uses-permission>
17
18    <supports-screens
19        android:anyDensity="true"
20        android:largeScreens="true"
21        android:normalScreens="false"
22        android:resizeable="true"
23        android:smallScreens="true" />

3.初始化地图引擎

1bMapManager = new BMapManager(MainActivity.this);
2        bMapManager.init(keyString, new MKGeneralListener() {
3            @Override
4            public void onGetPermissionState(int arg0) {
5                // TODO Auto-generated method stub
6            }
7
8            @Override
9            public void onGetNetworkState(int arg0) {
10                // TODO Auto-generated method stub
11                if (arg0 == 300) {
12                    Toast.makeText(MainActivity.this, "输入的key有误，请核实！", 1)
13                            .show();
14                }
15            }
16        });
17        initMapActivity(bMapManager);    //初始化地图引擎

4.取得MapView组件

mapView = (MapView) findViewById(R.id.bmapView);

5.实例化search对象并添加监听

1mkSearch = new MKSearch();
2mkSearch.init(bMapManager, new MySearchListener());

监听类：

1private class MySearchListener implements MKSearchListener {
2
3        @Override
4        public void onGetAddrResult(MKAddrInfo arg0, int arg1) {
5            // TODO Auto-generated method stub
6
7        }
8
9        @Override
10        public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {
11            // TODO Auto-generated method stub
12
13        }
14
15        @Override
16        public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {
17            // TODO Auto-generated method stub
18
19        }
20
21        @Override
22        public void onGetPoiDetailSearchResult(int arg0, int arg1) {
23            // TODO Auto-generated method stub
24
25        }
26
27        @Override
28        public void onGetPoiResult(MKPoiResult result, int type, int isError) {
29            // TODO Auto-generated method stub
30            if(result == null){
31                return;
32            }
33            PoiOverlay poiOverlay = new PoiOverlay(MainActivity.this, mapView);
34            poiOverlay.setData(result.getAllPoi());
35            mapView.getOverlays().add(poiOverlay);
36            mapView.invalidate();
37        }
38
39        @Override
40        public void onGetRGCShareUrlResult(String arg0, int arg1) {
41            // TODO Auto-generated method stub
42
43        }
44
45        @Override
46        public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {
47            // TODO Auto-generated method stub
48
49        }
50
51        @Override
52        public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
53            // TODO Auto-generated method stub
54
55        }
56
57        @Override
58        public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {
59            // TODO Auto-generated method stub
60
61        }
62    }

6.根据关键词、中心点、半径进行搜索。

1// 关键词，中心点，范围半径
2mkSearch.poiSearchNearBy("KFC", new GeoPoint((int) (39.915 * 1E6), (int) (116.404 * 1E6)), 5000);

7.恢复、暂停、停止地图时地图引擎的操作

1    @Override
2    protected void onDestroy() {
3        // TODO Auto-generated method stub
4        super.onDestroy();
5        if (bMapManager != null) {
6            bMapManager.destroy();
7            bMapManager = null;
8        }
9    }
10
11    @Override
12    protected void onResume() {
13        // TODO Auto-generated method stub
14        super.onResume();
15        if (bMapManager != null) {
16            bMapManager.start();
17        }
18    }
19
20    @Override
21    protected void onPause() {
22        // TODO Auto-generated method stub
23        super.onPause();
24        if (bMapManager != null) {
25            bMapManager.stop();
26        }
27    }

完整代码：

1package com.example.baiduhellopoioverlay;
2
3import android.os.Bundle;
4import android.view.Menu;
5import android.widget.Toast;
6
7import com.baidu.mapapi.BMapManager;
8import com.baidu.mapapi.GeoPoint;
9import com.baidu.mapapi.MKAddrInfo;
10import com.baidu.mapapi.MKBusLineResult;
11import com.baidu.mapapi.MKDrivingRouteResult;
12import com.baidu.mapapi.MKGeneralListener;
13import com.baidu.mapapi.MKPoiResult;
14import com.baidu.mapapi.MKSearch;
15import com.baidu.mapapi.MKSearchListener;
16import com.baidu.mapapi.MKSuggestionResult;
17import com.baidu.mapapi.MKTransitRouteResult;
18import com.baidu.mapapi.MKWalkingRouteResult;
19import com.baidu.mapapi.MapActivity;
20import com.baidu.mapapi.MapView;
21import com.baidu.mapapi.PoiOverlay;
22
23public class MainActivity extends MapActivity {
24
25    private MapView mapView;
26    private BMapManager bMapManager;
27    private String keyString = "43D220AAB0DEC976D2EABC83CFC9EEE52BCCCA7A";
28    private MKSearch mkSearch;
29
30    @Override
31    protected void onCreate(Bundle savedInstanceState) {
32        super.onCreate(savedInstanceState);
33        setContentView(R.layout.activity_main);
34
35        bMapManager = new BMapManager(MainActivity.this);
36        bMapManager.init(keyString, new MKGeneralListener() {
37            @Override
38            public void onGetPermissionState(int arg0) {
39                // TODO Auto-generated method stub
40            }
41
42            @Override
43            public void onGetNetworkState(int arg0) {
44                // TODO Auto-generated method stub
45                if (arg0 == 300) {
46                    Toast.makeText(MainActivity.this, "输入的key有误，请核实！", 1)
47                            .show();
48                }
49            }
50        });
51        initMapActivity(bMapManager);    //初始化地图引擎
52        mapView = (MapView) findViewById(R.id.bmapView);
53        mkSearch = new MKSearch();
54        mkSearch.init(bMapManager, new MySearchListener());
55
56        // 关键词，中心点，范围半径
57        mkSearch.poiSearchNearBy("KFC", new GeoPoint((int) (39.915 * 1E6),
58                (int) (116.404 * 1E6)), 5000);
59    }
60
61    private class MySearchListener implements MKSearchListener {
62
63        @Override
64        public void onGetAddrResult(MKAddrInfo arg0, int arg1) {
65            // TODO Auto-generated method stub
66
67        }
68
69        @Override
70        public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {
71            // TODO Auto-generated method stub
72
73        }
74
75        @Override
76        public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {
77            // TODO Auto-generated method stub
78
79        }
80
81        @Override
82        public void onGetPoiDetailSearchResult(int arg0, int arg1) {
83            // TODO Auto-generated method stub
84
85        }
86
87        @Override
88        public void onGetPoiResult(MKPoiResult result, int type, int isError) {
89            // TODO Auto-generated method stub
90            if(result == null){
91                return;
92            }
93            PoiOverlay poiOverlay = new PoiOverlay(MainActivity.this, mapView);
94            poiOverlay.setData(result.getAllPoi());
95            mapView.getOverlays().add(poiOverlay);
96            mapView.invalidate();
97        }
98
99        @Override
100        public void onGetRGCShareUrlResult(String arg0, int arg1) {
101            // TODO Auto-generated method stub
102
103        }
104
105        @Override
106        public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {
107            // TODO Auto-generated method stub
108
109        }
110
111        @Override
112        public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
113            // TODO Auto-generated method stub
114
115        }
116
117        @Override
118        public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {
119            // TODO Auto-generated method stub
120
121        }
122    }
123
124    @Override
125    protected void onDestroy() {
126        // TODO Auto-generated method stub
127        super.onDestroy();
128        if (bMapManager != null) {
129            bMapManager.destroy();
130            bMapManager = null;
131        }
132    }
133
134    @Override
135    protected void onResume() {
136        // TODO Auto-generated method stub
137        super.onResume();
138        if (bMapManager != null) {
139            bMapManager.start();
140        }
141    }
142
143    @Override
144    protected void onPause() {
145        // TODO Auto-generated method stub
146        super.onPause();
147        if (bMapManager != null) {
148            bMapManager.stop();
149        }
150    }
151
152    @Override
153    public boolean onCreateOptionsMenu(Menu menu) {
154        // Inflate the menu; this adds items to the action bar if it is present.
155        getMenuInflater().inflate(R.menu.main, menu);
156        return true;
157    }
158
159    @Override
160    protected boolean isRouteDisplayed() {
161        // TODO Auto-generated method stub
162        return false;
163    }
164
165}

运行结果：