Android之百度地图开发，包含定位，覆盖物，经纬度位置转换，长按设置中心位置

public class MainActivity extends Activity implements View.OnLongClickListener {    private static final String TAG = MainActivity.class.getSimpleName();    // 定位相关    LocationClient mLocClient;    public MyLocationListenner myListener = new MyLocationListenner();    MapView mMapView;    BaiduMap mBaiduMap;    boolean isFirstLoc = true; // 是否首次定位    private LatLng point;    private Marker markerA;    private Marker markerB;    private Marker markerC;    private LatLng point2;    private LatLng point3;    private GeoCoder geoCoder;    private Button button1;    private Button button;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        SDKInitializer.initialize(getApplicationContext());        setContentView(R.layout.activity_main);        // 地图初始化        mMapView = (MapView) findViewById(R.id.bmapView);        mBaiduMap = mMapView.getMap();        // 开启定位图层        mBaiduMap.setMyLocationEnabled(true);        // 创建地理编码检索实例        geoCoder = GeoCoder.newInstance();        // 定位初始化        mLocClient = new LocationClient(this);        mLocClient.registerLocationListener(myListener);        LocationClientOption option = new LocationClientOption();        option.setOpenGps(true); // 打开gps        option.setCoorType("bd09ll"); // 设置坐标类型        option.setScanSpan(1000);        mLocClient.setLocOption(option);        mLocClient.start();        mBaiduMap.setOnMarkerClickListener(new BaiduMap.OnMarkerClickListener() {            @Override            public boolean onMarkerClick(Marker marker) {                button = new Button(MainActivity.this);                button.setBackgroundResource(R.drawable.btn);                if (marker == markerA) {                    button.setText("我是A");                    myLatLng(point);                    //创建InfoWindow , 传入 view， 地理坐标， y 轴偏移量                    InfoWindow mInfoWindow = new InfoWindow(button, point, -110);                    //显示InfoWindow                    mBaiduMap.showInfoWindow(mInfoWindow);                }                if (marker == markerB) {                    button.setText("我是B");                    InfoWindow mInfoWindow = new InfoWindow(button, point2, -110);                    mBaiduMap.showInfoWindow(mInfoWindow);                }                if (marker == markerC) {                    button.setText("我是C");                    InfoWindow mInfoWindow = new InfoWindow(button, point3, -110);                    mBaiduMap.showInfoWindow(mInfoWindow);                }                //    Toast.makeText(MainActivity.this, ""+point.latitude+":"+point.longitude+":"+marker, Toast.LENGTH_SHORT).show();                return false;            }        });        mBaiduMap.setOnMapLongClickListener(new BaiduMap.OnMapLongClickListener() {            @Override            public void onMapLongClick(LatLng latLng) {                MapStatus maps = new MapStatus.Builder().target(latLng).zoom(18).build();                MapStatusUpdate m = MapStatusUpdateFactory.newMapStatus(maps);                //改变地图状态                mBaiduMap.setMapStatus(m);                //  Log.i(TAG, "onMapLongClick: "+latLng.latitude+":"+latLng.longitude);                // I/MainActivity: onMapLongClick: 22.54988914359645:113.93814237509572            }        });    }    @Override    public boolean onLongClick(View view) {        return false;    }    @Override    public boolean onKeyLongPress(int keyCode, KeyEvent event) {        event.getDownTime();        Log.i(TAG, "onKeyLongPress: " + event.getDownTime());        return super.onKeyLongPress(keyCode, event);    }    /**     * 定位SDK监听函数     */    public class MyLocationListenner implements BDLocationListener {        @Override        public void onReceiveLocation(BDLocation location) {            // map view 销毁后不在处理新接收的位置            if (location == null || mMapView == null) {                return;            }            MyLocationData locData = new MyLocationData.Builder()                    .accuracy(location.getRadius())                    // 此处设置开发者获取到的方向信息，顺时针0-360                    .direction(100).latitude(location.getLatitude())                    .longitude(location.getLongitude()).build();            latitude = location.getLatitude();            longitude = location.getLongitude();            //    Log.i(TAG, "onReceiveLocation: " + location.getLongitude() + ":" + location.getLatitude());            addMyLocation();            mBaiduMap.setMyLocationData(locData);            if (isFirstLoc) {                isFirstLoc = false;                LatLng ll = new LatLng(location.getLatitude(),                        location.getLongitude());                MapStatus.Builder builder = new MapStatus.Builder();                builder.target(ll).zoom(18.0f);                mBaiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));            }        }    }    //当前位置经纬度    private double latitude;    private double longitude;    /**     * 定位并添加标注     */    private void addMyLocation() {        List var = new ArrayList();        //定义Maker坐标点        point = new LatLng(latitude, longitude);        //构建Marker图标        BitmapDescriptor bitmap = BitmapDescriptorFactory.fromResource(R.drawable.icon_marka);        //构建MarkerOption，用于在地图上添加Marker        OverlayOptions option = new MarkerOptions()                .position(point)                .icon(bitmap);        var.add(option);        point2 = new LatLng(latitude + 0.001123, longitude + 0.001256);        //构建Marker图标        BitmapDescriptor bitmapb = BitmapDescriptorFactory.fromResource(R.drawable.icon_markb);        //构建MarkerOption，用于在地图上添加Marker        OverlayOptions option2 = new MarkerOptions()                .position(point2)                .icon(bitmapb);        //在地图上添加Marker，并显示        var.add(option2);        point3 = new LatLng(latitude - 0.001123, longitude - 0.001256);        //构建Marker图标        BitmapDescriptor bitmapc = BitmapDescriptorFactory.fromResource(R.drawable.icon_markc);        //构建MarkerOption，用于在地图上添加Marker        OverlayOptions option3 = new MarkerOptions()                .position(point3)                .icon(bitmapc);        //在地图上添加Marker，并显示        var.add(option3);        mBaiduMap.addOverlays(var);        markerA = (Marker) mBaiduMap.addOverlay(option);        markerB = (Marker) mBaiduMap.addOverlay(option2);        markerC = (Marker) mBaiduMap.addOverlay(option3);    }    @Override    protected void onPause() {        mMapView.onPause();        super.onPause();    }    @Override    protected void onResume() {        mMapView.onResume();        super.onResume();    }    @Override    protected void onDestroy() {        // 退出时销毁定位        mLocClient.stop();        // 关闭定位图层        mBaiduMap.setMyLocationEnabled(false);        mMapView.onDestroy();        mMapView = null;        super.onDestroy();    }    /**     * 经纬度转换成地址     */    private void myLatLng(LatLng latLng) {        // 设置反地理经纬度坐标,请求位置时,需要一个经纬度        geoCoder.reverseGeoCode(new ReverseGeoCodeOption().location(latLng));        //设置地址或经纬度反编译后的监听,这里有两个回调方法,        geoCoder.setOnGetGeoCodeResultListener(new OnGetGeoCoderResultListener() {            @Override            public void onGetGeoCodeResult(GeoCodeResult geoCodeResult) {                //  addre = "地址："+reverseGeoCodeResult.getAddress();                //    Log.i(TAG, "onGetReverseGeoCodeResult: "+reverseGeoCodeResult.getAddress());            }            /**             *             * @param reverseGeoCodeResult             */            @Override            public void onGetReverseGeoCodeResult(ReverseGeoCodeResult reverseGeoCodeResult) {                if (reverseGeoCodeResult == null || reverseGeoCodeResult.error != SearchResult.ERRORNO.NO_ERROR) {                    Toast.makeText(MainActivity.this, "找不到该地址！", Toast.LENGTH_SHORT).show();                }                Log.i(TAG, "onGetGeoCodeResult: " + reverseGeoCodeResult.getAddress());                //   String    addre = "地址："+geoCodeResult.getAddress();                button.setText( "地址："+reverseGeoCodeResult.getAddress());                // I/MainActivity: onGetReverseGeoCodeResult: 地址：广东省深圳市南山区科苑路15号            }        });    }}

布局

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.yang.yin.myapplication.MainActivity">    <com.baidu.mapapi.map.MapView        android:id="@+id/bmapView"        android:layout_width="match_parent"        android:layout_height="fill_parent"        android:clickable="true" />RelativeLayout>

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