定位

Dear 丶 2022-08-02 06:17 196阅读 0赞

public class MainActivity extends Activity {
    	private MapView mapView;
    	private LocationClient locationClient;
    	private double latitude,longitude;
    	private BaiduMap mBaiduMap;
    	private BDLocationListener locationListener = new BDLocationListener() {
    		
    		@Override
    		public void onReceiveLocation(BDLocation location) {
    			latitude = location.getLatitude();
    			longitude = location.getLongitude();
    			
    			MyLocationData locationData = new MyLocationData.Builder()
    			.accuracy(location.getRadius()).latitude(latitude).longitude(longitude).build();
    			mBaiduMap.setMyLocationData(locationData);
    			LatLng pt = new LatLng(latitude, longitude);
    			MapStatus mapStatus = new MapStatus.Builder()
    			.target(pt).zoom(18).build();
    			MapStatusUpdate statusUpdate = MapStatusUpdateFactory.newMapStatus(mapStatus);
    			mBaiduMap.setMapStatus(statusUpdate);
    			BitmapDescriptor bitmap = BitmapDescriptorFactory.fromResource(R.drawable.location);
    			//MyLocationConfiguration config = new MyLocationConfiguration(locationClient, true, bitmap);
    			mapView.refreshDrawableState();
    			StringBuilder sb = new StringBuilder();
    			sb.append(location.getProvince())
    			.append(location.getCity()).append(location.getStreet());
    			Toast.makeText(getApplication(), sb.toString(), Toast.LENGTH_SHORT).show();
    		}
    	};
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		 //在使用SDK各组件之前初始化context信息，传入ApplicationContext  
            //注意该方法要再setContentView方法之前实现  
            SDKInitializer.initialize(getApplicationContext());  
            requestWindowFeature(Window.FEATURE_NO_TITLE);
            setContentView(R.layout.activity_main);  
            //获取地图控件引用  
            mapView = (MapView) findViewById(R.id.mapView);
            mBaiduMap = mapView.getMap();
            locationClient = new LocationClient(getApplicationContext());
            LocationClientOption option = new LocationClientOption();
            option.setCoorType("bd09ll");
            option.setLocationMode(LocationMode.Hight_Accuracy);
            option.setScanSpan(5000);
            option.setIsNeedAddress(true);
            option.setOpenGps(true);
            option.setNeedDeviceDirect(true);
            locationClient.setLocOption(option);
            locationClient.registerLocationListener(locationListener);
            locationClient.start();
            
            mBaiduMap.setMyLocationEnabled(true);
            
    	}
    	@Override
    	protected void onResume() {
    		super.onResume();
    		mapView.onResume();
    		setLocation();
    	}
    	@Override
    	protected void onPause() {
    		super.onPause();
    		mapView.onPause();
    	}
    	@Override
    	protected void onDestroy() {
    		mapView.onDestroy();
    		locationClient.unRegisterLocationListener(locationListener);
    		locationClient.stop();
    		super.onDestroy();
    	}
    	
    	private void setLocation(){
    		LatLng pt = new LatLng(latitude, longitude);
    		BitmapDescriptor bitmap = BitmapDescriptorFactory.fromResource(R.drawable.location);
    		OverlayOptions option = new MarkerOptions()
    		.position(pt).icon(bitmap);
    		mBaiduMap.addOverlay(option);
    	}