Android基础:百度SDK使用 | 带

百度SDK

• 首先从百度地图官网lbs下载需要的功能包，然后将之放进对应的文件夹里
• 其次，在xml里申请需要用到的权限
• manifest

1.  
   <!--申请权限-->
2.  
   <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
3.  
   <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
4.  
   <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
5.  
   <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
6.  
   <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
7.  
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
8.  
   <uses-permission android:name="android.permission.INTERNET"/>
9.  
   <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
10.  
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
11.  
     
12.  
    <application
13.  
    android:allowBackup="true"
14.  
    android:icon="@mipmap/ic_launcher"
15.  
    android:label="@string/app_name"
16.  
    android:roundIcon="@mipmap/ic_launcher_round"
17.  
    android:supportsRtl="true"
18.  
    android:theme="@style/AppTheme">
19.  
    <!--添加meta-data标签，name属性是固定的，value是我们创建时百度生成的-->
20.  
    <meta-data
21.  
    android:name="com.百度.lbsapi.API_KEY"
22.  
    android:value="D1LCt49XRl4w3GlLXvSo8BEzX6VICo7v"/>
23.  
     
24.  
    <activity android:name=".MainActivity">
25.  
    <intent-filter>
26.  
    <action android:name="android.intent.action.MAIN" />
27.  
     
28.  
    <category android:name="android.intent.category.LAUNCHER" />
29.  
    </intent-filter>
30.  
    </activity>
31.  
     
32.  
    <!--注册一个LBS SDK服务-->
33.  
    <service android:name="com.百度.location.f"
34.  
    android:enabled="true"
35.  
    android:process=":remote"/>
36.  
    </application>

• activity_main

1.  
   <TextView
2.  
   android:id="@ id/position_text_view"
3.  
   android:layout_width="wrap_content"
4.  
   android:layout_height="wrap_content"
5.  
   android:visibility="gone"
6.  
   app:layout_constraintBottom_toBottomOf="parent"
7.  
   app:layout_constraintHorizontal_bias="0.204"
8.  
   app:layout_constraintLeft_toLeftOf="parent"
9.  
   app:layout_constraintRight_toRightOf="parent"
10.  
    app:layout_constraintTop_toTopOf="parent"
11.  
    app:layout_constraintVertical_bias="0.044" />
12.  
     
13.  
    <com.百度.mapapi.map.MapView
14.  
    android:id="@ id/bmapView"
15.  
    android:layout_width="match_parent"
16.  
    android:layout_height="match_parent"
17.  
    android:clickable="true"
18.  
    app:layout_constraintBottom_toBottomOf="parent"
19.  
    app:layout_constraintEnd_toEndOf="parent"
20.  
    app:layout_constraintStart_toStartOf="parent"
21.  
    app:layout_constraintTop_toTopOf="parent" />

• MainActivity

1.  
   public class MainActivity extends AppCompatActivity {
2.  
    
3.  
   // 创建一个LocationClient实例
4.  
   public LocationClient mLocationClient;
5.  
    
6.  
   private TextView positionText;
7.  
    
8.  
   private MapView mMapView;
9.  
    
10.  
    // 创建一个地图控制器，为显示所处位置做准备
11.  
    private BaiduMap mBaiduMap;
12.  
    private boolean isFirstLocate = true;
13.  
     
14.  
    @Override
15.  
    protected void onCreate(Bundle savedInstanceState) {
16.  
    super.onCreate(savedInstanceState);
17.  
     
18.  
    // 接收一个全局context
19.  
    mLocationClient = new LocationClient(getApplicationContext());
20.  
    // 注册一个监听器，当获取到位置信息的时候，回调该定位监听器
21.  
    mLocationClient.registerLocationListener(new MyLocationListener());
22.  
    // 初始化地图
23.  
    SDKInitializer.initialize(getApplicationContext());
24.  
     
25.  
    setContentView(R.layout.activity_main);
26.  
     
27.  
    mMapView = findViewById(R.id.bmapView);
28.  
     
29.  
    // 获取BaiduMap实例
30.  
    mBaiduMap = mMapView.getMap();
31.  
     
32.  
    // 获得权限，使光标显示在地图上
33.  
    mBaiduMap.setMyLocationEnabled(true);
34.  
     
35.  
    positionText = findViewById(R.id.position_text_view);
36.  
    // 创建一个空集合，将需要动态申请的权限，没授权的依次添加进来
37.  
    List<String> permissionList = new ArrayList<>();
38.  
     
39.  
    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
40.  
    permissionList.add(Manifest.permission.ACCESS_FINE_LOCATION);
41.  
    }
42.  
    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
43.  
    permissionList.add(Manifest.permission.READ_PHONE_STATE);
44.  
    }
45.  
    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
46.  
    permissionList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
47.  
    }
48.  
     
49.  
    // 判断集合是否为空，不为空则转换为数组，一次性申请权限
50.  
    if (!permissionList.isEmpty()) {
51.  
    String[] permissions = permissionList.toArray(new String[permissionList.size()]);
52.  
    ActivityCompat.requestPermissions(MainActivity.this,permissions,1);
53.  
    } else {
54.  
    requestLocation();
55.  
    }
56.  
     
57.  
    }
58.  
     
59.  
    private void requestLocation() {
60.  
    initLocation();
61.  
    // 结果回调到监听器
62.  
    mLocationClient.start();
63.  
    }
64.  
     
65.  
    // 实时更新定位
66.  
    private void initLocation() {
67.  
    LocationClientOption option = new LocationClientOption();
68.  
    // 设定每5秒更新一次定位数据
69.  
    option.setScanSpan(1000);
70.  
     
71.  
    // 设置为百度地图坐标体系，默认gcj02出来的位置误差太大
72.  
    // WGS-84：是国际标准，GPS坐标（Google Earth使用、或者GPS模块）
73.  
    // GCJ-02：中国坐标偏移标准，Google Map、高德、腾讯使用
74.  
    // BD-09：百度坐标偏移标准，Baidu Map使用
75.  
    option.setCoorType("bd09ll");
76.  
     
77.  
    // 设定强制使用GPS定位
78.  
    //option.setLocationMode(LocationClientOption.LocationMode.Device_Sensors);
79.  
     
80.  
    // 获取当前位置的详细信息
81.  
    option.setIsNeedAddress(true);
82.  
     
83.  
    mLocationClient.setLocOption(option);
84.  
    }
85.  
     
86.  
    @Override
87.  
    protected void onResume() {
88.  
    super.onResume();
89.  
    mMapView.onResume();
90.  
    }
91.  
     
92.  
    @Override
93.  
    protected void onPause() {
94.  
    super.onPause();
95.  
    mMapView.onPause();
96.  
    }
97.  
     
98.  
    @Override
99.  
    protected void onDestroy() {
100.  
     super.onDestroy();
101.  
     // 在活动被摧毁时一定要调用该方法停止定位，否则程序会在后台持续定位，消耗手机电量
102.  
     mLocationClient.stop();
103.  
     mMapView.onDestroy();
104.  
     mBaiduMap.setMyLocationEnabled(false);
105.  
     }
106.  
      
107.  
     @Override
108.  
     public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
109.  
     switch (requestCode) {
110.  
     case 1:
111.  
     if (grantResults.length > 0) {
112.  
     for (int result : grantResults) {
113.  
     if (result != PackageManager.PERMISSION_GRANTED) {
114.  
     Toast.makeText(this,"必须同意所有权限才能使用本程序",Toast.LENGTH_SHORT).show();
115.  
     finish();
116.  
     return;
117.  
     }
118.  
     }
119.  
     requestLocation();
120.  
     } else {
121.  
     Toast.makeText(this,"发生未知错误",Toast.LENGTH_SHORT).show();
122.  
     }
123.  
     break;
124.  
     default:
125.  
     }
126.  
     }
127.  
      
128.  
     // 用于获取当前位置，并更新到地图上
129.  
     private void navigateTo(BDLocation location) {
130.  
     if (isFirstLocate) {
131.  
     LatLng ll = new LatLng(location.getLatitude(),location.getLongitude());
132.  
     MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(ll);
133.  
     mBaiduMap.animateMapStatus(update);
134.  
     // 缩放级别3~19之间，越高越精确
135.  
     update = MapStatusUpdateFactory.zoomTo(18f);
136.  
     mBaiduMap.animateMapStatus(update);
137.  
     isFirstLocate = false;
138.  
     }
139.  
      
140.  
     // 设置显示我在地图上的光标信息
141.  
     MyLocationData.Builder locationBuilder = new MyLocationData.Builder();
142.  
     locationBuilder.latitude(location.getLatitude());
143.  
     locationBuilder.longitude(location.getLongitude());
144.  
     MyLocationData locationData = locationBuilder.build();
145.  
     mBaiduMap.setMyLocationData(locationData);
146.  
      
147.  
     }
148.  
      
149.  
     public class MyLocationListener implements BDLocationListener {
150.  
      
151.  
     @Override
152.  
     public void onReceiveLocation(BDLocation bdLocation) {
153.  
      
154.  
     // 用于判断是不是第一次定位
155.  
     if (bdLocation.getLocType() == BDLocation.TypeGpsLocation || bdLocation.getLocType() == BDLocation.TypeNetWorkLocation){
156.  
     navigateTo(bdLocation);
157.  
     }
158.  
      
159.  
     StringBuilder currentPosition = new StringBuilder();
160.  
     currentPosition.append("纬度: ").append(bdLocation.getLatitude()).append("
161.  
     ");
162.  
     currentPosition.append("经度: ").append(bdLocation.getLongitude()).append("
163.  
     ");
164.  
     currentPosition.append("国家: ").append(bdLocation.getCountry()).append("
165.  
     ");
166.  
     currentPosition.append("省: ").append(bdLocation.getProvince()).append("
167.  
     ");
168.  
     currentPosition.append("市: ").append(bdLocation.getCity()).append("
169.  
     ");
170.  
     currentPosition.append("区: ").append(bdLocation.getDistrict()).append("
171.  
     ");
172.  
     currentPosition.append("街道: ").append(bdLocation.getStreet()).append("
173.  
     ");
174.  
     currentPosition.append("定位方式: ");
175.  
     if (bdLocation.getLocType() == BDLocation.TypeGpsLocation) {
176.  
     currentPosition.append("GPS");
177.  
     } else if (bdLocation.getLocType() == BDLocation.TypeNetWorkLocation) {
178.  
     currentPosition.append("网络");
179.  
     }
180.  
      
181.  
     positionText.setText(currentPosition);
182.  
      
183.  
     }
184.  
     }
185.  
     }

• 下载地址

https://github.com/qricis/DoSomeAndroidTest/tree/main/LBSTest

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