效果圖（GIF壓縮問題請忽略）
1.Activity代碼（Android6.0以上別忘記添加動態權限）
/** * Created by YyyyQ on 2020/3/26 * 獲取當前定位,地圖選點,獲取當前和選擇的位置信息 */ public class LocationActivity extends AppCompatActivity implements LocationSource, AMapLocationListener, GeocodeSearch.OnGeocodeSearchListener, AMap.OnMapClickListener { private MapView mapView; private AMap aMap; private UiSettings uiSettings; //定位服務 private LocationSource.OnLocationChangedListener onLocationChangedListener; private AMapLocationClient locationClient; private AMapLocationClientOption locationClientOption; //地理編碼 private GeocodeSearch geocodeSearch; //回顯位置信息的TextView private TextView locationCoordinate; private TextView locationInfo; //當前地圖上的marker private Marker marker; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_location); mapView = findViewById(R.id.location_map); mapView.onCreate(savedInstanceState); locationCoordinate = findViewById(R.id.location_coordinate); locationInfo = findViewById(R.id.location_info); if (aMap == null) { aMap = mapView.getMap(); uiSettings = aMap.getUiSettings(); //設置地圖屬性 setMapAttribute(); } } private void setMapAttribute() { //設置默認縮放級別 aMap.animateCamera(CameraUpdateFactory.zoomTo(15)); //隱藏的右下角縮放按鈕 uiSettings.setZoomControlsEnabled(false); //顯示右上角定位按鈕 uiSettings.setMyLocationButtonEnabled(false); //設置定位監聽 aMap.setLocationSource(this); //可觸發定位並顯示當前位置 aMap.setMyLocationEnabled(true); //定位一次，且將視角移動到地圖中心點 MyLocationStyle myLocationStyle = new MyLocationStyle(); myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_LOCATE); //隱藏定位點外圈圓的顏色 myLocationStyle.strokeColor(Color.argb(0, 0, 0, 0)); myLocationStyle.radiusFillColor(Color.argb(0, 0, 0, 0)); aMap.setMyLocationStyle(myLocationStyle); //設置地理編碼查詢 geocodeSearch = new GeocodeSearch(this); geocodeSearch.setOnGeocodeSearchListener(this); //設置地圖點擊事件 aMap.setOnMapClickListener(this); } /** * 激活定位 */ @Override public void activate(OnLocationChangedListener onLocationChangedListener) { this.onLocationChangedListener = onLocationChangedListener; if (locationClient == null) { //初始化定位 locationClient = new AMapLocationClient(this); //初始化定位參數 locationClientOption = new AMapLocationClientOption(); //設置定位回調監聽 locationClient.setLocationListener(this); //高精度定位模式 locationClientOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy); //單定位模式 locationClientOption.setOnceLocation(true); //設置定位參數 locationClient.setLocationOption(locationClientOption); //啟動定位 locationClient.startLocation(); } } /** * 定位成功后回調函數 */ @Override public void onLocationChanged(AMapLocation aMapLocation) { if (onLocationChangedListener != null && aMapLocation != null) { if (aMapLocation.getErrorCode() == 0) { //顯示定位圓點 onLocationChangedListener.onLocationChanged(aMapLocation); locationCoordinate.setText("當前緯度:" + aMapLocation.getLatitude() + "當前經度" + aMapLocation.getLongitude()); //根據當前經緯度查詢地址 LatLonPoint latLonPoint = new LatLonPoint(aMapLocation.getLatitude(), aMapLocation.getLongitude()); RegeocodeQuery query = new RegeocodeQuery(latLonPoint, 200, GeocodeSearch.AMAP); geocodeSearch.getFromLocationAsyn(query); } else { Log.e("YyyyQ", "定位失敗" + aMapLocation.getErrorCode() + ":" + aMapLocation.getErrorInfo()); Toast.makeText(getApplication(), "定位失敗", Toast.LENGTH_SHORT).show(); } } } /** * 停止定位 */ @Override public void deactivate() { onLocationChangedListener = null; if (locationClient != null) { locationClient.stopLocation(); locationClient.onDestroy(); } } /** * 根據坐標轉換地址信息 */ @Override public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int i) { if (i == AMapException.CODE_AMAP_SUCCESS) { locationInfo.setText("當前位置信息:" + regeocodeResult.getRegeocodeAddress().getFormatAddress()); } else { Toast.makeText(getApplication(), "獲取當前位置信息失敗", Toast.LENGTH_SHORT).show(); } } /** * 地址轉坐標 */ @Override public void onGeocodeSearched(GeocodeResult geocodeResult, int i) { } /** * 地圖點擊事件 */ @Override public void onMapClick(LatLng latLng) { if (marker != null) { marker.remove(); } MarkerOptions markerOptions = new MarkerOptions(); markerOptions.icon(BitmapDescriptorFactory.fromResource(R.drawable.map_icon)); markerOptions.position(latLng); marker = aMap.addMarker(markerOptions); //根據點擊地圖的點位獲取詳細信息 locationCoordinate.setText("當前緯度:" + latLng.latitude + "當前經度" + latLng.longitude); //根據當前經緯度查詢地址 LatLonPoint latLonPoint = new LatLonPoint(latLng.latitude, latLng.longitude); RegeocodeQuery query = new RegeocodeQuery(latLonPoint, 200, GeocodeSearch.AMAP); geocodeSearch.getFromLocationAsyn(query); } }
2.xml布局文件
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <!--地圖o--> <com.amap.api.maps.MapView android:id="@+id/location_map" android:layout_width="match_parent" android:layout_height="match_parent" /> <!--回顯位置信息的布局--> <LinearLayout android:layout_width="match_parent" android:layout_height="140dp" android:layout_alignParentBottom="true" android:layout_margin="15dp" android:alpha="0.85" android:background="@drawable/layout_background" android:orientation="vertical"> <TextView android:id="@+id/location_coordinate" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1.4" android:gravity="center|left" android:textColor="#1A91B0" android:textSize="16sp" /> <TextView android:id="@+id/location_info" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="2" android:gravity="center|left|top" android:paddingTop="10dp" android:textColor="#F05554" android:textSize="16sp" /> </LinearLayout> </RelativeLayout>