高德地圖定位（簡易版）
阿新 • • 發佈：2019-01-12
首先要有在官網下載的demo
首先導依賴
在當前module 中的build.grade 中新增
sourceSets {
main {
jniLibs.srcDirs = ['libs']
}
}
建立一個 名為 LocationUtil的類直接複製裡面的程式碼
public class LocationUtil implements AMapLocationListener { private AMapLocationClient aMapLocationClient; private AMapLocationClientOption clientOption; private ILocationCallBack callBack; public void startLocate(Context context){ aMapLocationClient = new AMapLocationClient(context); //設定監聽回撥 aMapLocationClient.setLocationListener(this); //初始化定位引數 clientOption = new AMapLocationClientOption(); clientOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Battery_Saving); clientOption.setNeedAddress(true); clientOption.setOnceLocation(false); //設定是否強制重新整理WIFI，預設為強制重新整理 clientOption.setWifiActiveScan(true); //設定是否允許模擬位置,預設為false，不允許模擬位置 clientOption.setMockEnable(false); //設定定位間隔 clientOption.setInterval(2000); aMapLocationClient.setLocationOption(clientOption); aMapLocationClient.startLocation(); } //完成定位回撥 @Override public void onLocationChanged(AMapLocation aMapLocation) { if(aMapLocation != null){ if(aMapLocation.getErrorCode() == 0){ //定位成功完成回撥 String country = aMapLocation.getCountry(); String province = aMapLocation.getProvince(); String city = aMapLocation.getCity(); String district = aMapLocation.getDistrict(); String street = aMapLocation.getStreet(); double lat = aMapLocation.getLatitude(); double lgt = aMapLocation.getLongitude(); callBack.callBack(country + province + city + district + street,lat,lgt,aMapLocation); }else{ //顯示錯誤資訊ErrCode是錯誤碼，errInfo是錯誤資訊，詳見錯誤碼錶。 Log.e("AmapError", "location Error, ErrCode:" + aMapLocation.getErrorCode() + ", errInfo:" + aMapLocation.getErrorInfo()); } } } /** * 自定義圖示 * @return */ public MarkerOptions getMarkerOption(String str, double lat, double lgt){ MarkerOptions markerOptions = new MarkerOptions(); markerOptions.icon(BitmapDescriptorFactory.fromResource(R.mipmap.ic_launcher)); markerOptions.position(new LatLng(lat,lgt)); markerOptions.title(str); markerOptions.snippet("緯度:" + lat + " 經度:" + lgt); markerOptions.period(100); return markerOptions; } public interface ILocationCallBack{ void callBack(String str,double lat,double lgt,AMapLocation aMapLocation); } public void setLocationCallBack(ILocationCallBack callBack){ this.callBack = callBack; } }
複製MainActivity 中的程式碼
public class MainActivity extends AppCompatActivity implements LocationSource{ private MapView mapView; private AMap aMap; private LocationSource.OnLocationChangedListener mListener = null;//定位監聽器 private LocationUtil locationUtil; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mapView = (MapView) findViewById(R.id.MapView); mapView.onCreate(savedInstanceState); init(); } private void init() { if(aMap == null){ aMap = mapView.getMap(); } setLocationCallBack(); //設定定位監聽 aMap.setLocationSource(this); //設定縮放級別 aMap.moveCamera(CameraUpdateFactory.zoomTo(15)); //顯示定位層並可觸發，預設false aMap.setMyLocationEnabled(true); } private void setLocationCallBack(){ locationUtil = new LocationUtil(); locationUtil.setLocationCallBack(new LocationUtil.ILocationCallBack() { @Override public void callBack(String str,double lat,double lgt,AMapLocation aMapLocation) { //根據獲取的經緯度，將地圖移動到定位位置 aMap.moveCamera(CameraUpdateFactory.changeLatLng(new LatLng(lat,lgt))); mListener.onLocationChanged(aMapLocation); //新增定點陣圖標 aMap.addMarker(locationUtil.getMarkerOption(str,lat,lgt)); } }); } //定位啟用回撥 @Override public void activate(OnLocationChangedListener onLocationChangedListener) { mListener = onLocationChangedListener; locationUtil.startLocate(getApplicationContext()); } @Override public void deactivate() { mListener = null; } @Override protected void onPause() { super.onPause(); //暫停地圖的繪製 mapView.onPause(); } @Override protected void onDestroy() { super.onDestroy(); //銷燬地圖 mapView.onDestroy(); } @Override protected void onResume() { super.onResume(); //重新繪製載入地圖 mapView.onResume(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); mapView.onSaveInstanceState(outState); } }
activity_main 中的程式碼
<com.amap.api.maps.MapView
android:id="@+id/MapView"
android:layout_width="match_parent"
android:layout_height="match_parent"></com.amap.api.maps.MapView>
在清單檔案中新增的許可權
<!-- Normal Permissions 不需要執行時註冊 --> <!-- 獲取運營商資訊，用於支援提供運營商資訊相關的介面 --> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <!-- 用於訪問wifi網路資訊，wifi資訊會用於進行網路定位 --> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <!-- 這個許可權用於獲取wifi的獲取許可權，wifi資訊會用來進行網路定位 --> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <uses-permission android:name="android.permission.CHANGE_CONFIGURATION" tools:ignore="ProtectedPermissions" /> <!-- 請求網路 --> <uses-permission android:name="android.permission.INTERNET" /> <!-- 不是SDK需要的許可權，是示例中的後臺喚醒定位需要的許可權 --> <uses-permission android:name="android.permission.WAKE_LOCK" /> <!-- 需要執行時註冊的許可權 --> <!-- 用於進行網路定位 --> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <!-- 用於訪問GPS定位 --> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <!-- 用於提高GPS定位速度 --> <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" /> <!-- 寫入擴充套件儲存，向擴充套件卡寫入資料，用於寫入快取定位資料 --> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <!-- 讀取快取資料 --> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <!-- 用於讀取手機當前的狀態 --> <uses-permission android:name="android.permission.READ_PHONE_STATE" /> <!-- 更改設定 --> <uses-permission android:name="android.permission.WRITE_SETTINGS" tools:ignore="ProtectedPermissions" /> <!-- 3.2.0版本增加 --> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <!-- 3.2.0版本增加 --> <uses-permission android:name="android.permission.BLUETOOTH" /> <!--不用複製application中的本來就有的程式碼 --> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <!-- 設定key --> <meta-data android:name="com.amap.api.v2.apikey" android:value="xxxxxx" /> <!-- 定位需要的服務 --> <service android:name="com.amap.api.location.APSService"></service> </application>
效果就出來了
如果沒有小三角的話就開啟一下 GPS 然後執行