Android 集成百度地图实现设备定位

水深无声 2022-04-22 03:12 344阅读 0赞

**Android 集成百度地图实现设备定位**  
**步骤1：**  
申请android 端SDK :  
[http://lbsyun.baidu.com/][http_lbsyun.baidu.com]  
**步骤2：**  
下载基础版SDK  
**步骤3：**  
下载示例程序  
**步骤4：**  
开始集成：  
ak加入  
libs加入  
SDKInitializer.setCoordType(CoordType.BD09LL);  
图标  
类

/**
     * 演示覆盖物的用法
     */
    public class OverlayDemo extends BaseActivity {
    
        /**
         * MapView 是地图主控件
         */
        private MapView mMapView;
        private BaiduMap mBaiduMap;
        private Marker mMarkerA;
        private Marker mMarkerB;
        private Marker mMarkerC;
        private Marker mMarkerD;
        private InfoWindow mInfoWindow;
        private SeekBar alphaSeekBar = null;
        private CheckBox animationBox = null;
        Double  loc=0.00050;
    
        // 初始化全局 bitmap 信息，不用时及时 recycle
        BitmapDescriptor bdA = BitmapDescriptorFactory
                .fromResource(R.drawable.icon_marka);
        BitmapDescriptor bdB = BitmapDescriptorFactory
                .fromResource(R.drawable.icon_markb);
        BitmapDescriptor bdC = BitmapDescriptorFactory
                .fromResource(R.drawable.icon_markc);
        BitmapDescriptor bdD = BitmapDescriptorFactory
                .fromResource(R.drawable.icon_markd);
        BitmapDescriptor bd = BitmapDescriptorFactory
                .fromResource(R.drawable.icon_gcoding);
        BitmapDescriptor bdGround = BitmapDescriptorFactory
                .fromResource(R.drawable.ground_overlay);
    
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_overlay);
            alphaSeekBar = (SeekBar) findViewById(R.id.alphaBar);
            alphaSeekBar.setOnSeekBarChangeListener(new SeekBarListener());
            animationBox = (CheckBox) findViewById(R.id.animation);
            mMapView = (MapView) findViewById(R.id.bmapView);
            mBaiduMap = mMapView.getMap();
            MapStatusUpdate msu = MapStatusUpdateFactory.zoomTo(14.0f);
            mBaiduMap.setMapStatus(msu);
            initOverlay();
            mBaiduMap.setOnMarkerClickListener(new BaiduMap.OnMarkerClickListener() {
                public boolean onMarkerClick(final Marker marker) {
                    Button button = new Button(getApplicationContext());
                    button.setBackgroundResource(R.drawable.popup);
                    InfoWindow.OnInfoWindowClickListener listener = null;
                    if (marker == mMarkerA || marker == mMarkerD) {
                        button.setText("更改位置");
                        button.setTextColor(Color.BLACK);
                        button.setWidth(300);
    
                        listener = new InfoWindow.OnInfoWindowClickListener() {
                            public void onInfoWindowClick() {
                                LatLng ll = marker.getPosition();
                                LatLng llNew = new LatLng(ll.latitude + 0.005,
                                        ll.longitude + 0.005);
                                marker.setPosition(llNew);
                                mBaiduMap.hideInfoWindow();
                            }
                        };
                        LatLng ll = marker.getPosition();
                        mInfoWindow = new InfoWindow(BitmapDescriptorFactory.fromView(button), ll, -47, listener);
                        mBaiduMap.showInfoWindow(mInfoWindow);
                    } else if (marker == mMarkerB) {
                        button.setText("更改图标");
                        button.setTextColor(Color.BLACK);
                        button.setOnClickListener(new OnClickListener() {
                            public void onClick(View v) {
                                marker.setIcon(bd);
                                mBaiduMap.hideInfoWindow();
                            }
                        });
                        LatLng ll = marker.getPosition();
                        mInfoWindow = new InfoWindow(button, ll, -47);
                        mBaiduMap.showInfoWindow(mInfoWindow);
                    } else if (marker == mMarkerC) {
                        button.setText("删除");
                        button.setTextColor(Color.BLACK);
                        button.setOnClickListener(new OnClickListener() {
                            public void onClick(View v) {
                                marker.remove();
                                mBaiduMap.hideInfoWindow();
                            }
                        });
                        LatLng ll = marker.getPosition();
                        mInfoWindow = new InfoWindow(button, ll, -47);
                        mBaiduMap.showInfoWindow(mInfoWindow);
                    }
                    return true;
                }
            });
        }
    
        public void initOverlay() {
    
            loc=loc+0.0005;
            // add marker overlay
            LatLng llA = new LatLng(35.963175+loc, 110.400244+loc);
            LatLng llB = new LatLng(39.942821, 116.369199);
            LatLng llC = new LatLng(39.939723, 116.425541);
            LatLng llD = new LatLng(39.906965, 116.401394);
    
            MarkerOptions ooA = new MarkerOptions().position(llA).icon(bdA)
                    .zIndex(9).draggable(true);
            if (animationBox.isChecked()) {
                // 掉下动画
                ooA.animateType(MarkerOptions.MarkerAnimateType.drop);
            }
            mMarkerA = (Marker) (mBaiduMap.addOverlay(ooA));
            MarkerOptions ooB = new MarkerOptions().position(llB).icon(bdB)
                    .zIndex(5);
            if (animationBox.isChecked()) {
                // 掉下动画
                ooB.animateType(MarkerOptions.MarkerAnimateType.drop);
            }
            mMarkerB = (Marker) (mBaiduMap.addOverlay(ooB));
            MarkerOptions ooC = new MarkerOptions().position(llC).icon(bdC)
                    .perspective(false).anchor(0.5f, 0.5f).rotate(30).zIndex(7);
            if (animationBox.isChecked()) {
                // 生长动画
                ooC.animateType(MarkerOptions.MarkerAnimateType.grow);
            }
            mMarkerC = (Marker) (mBaiduMap.addOverlay(ooC));
            ArrayList<BitmapDescriptor> giflist = new ArrayList<BitmapDescriptor>();
            giflist.add(bdA);
            giflist.add(bdB);
            giflist.add(bdC);
            MarkerOptions ooD = new MarkerOptions().position(llD).icons(giflist)
                    .zIndex(0).period(10);
            if (animationBox.isChecked()) {
                // 生长动画
                ooD.animateType(MarkerOptions.MarkerAnimateType.grow);
            }
            mMarkerD = (Marker) (mBaiduMap.addOverlay(ooD));
    
            // add ground overlay
          //  LatLng southwest = new LatLng(39.92235, 116.380338);
        //    LatLng northeast = new LatLng(39.947246, 116.414977);
    
    
            LatLng southwest = new LatLng(35.963175, 110.400244);
            LatLng northeast = new LatLng(35.963170, 110.400240);
    
            LatLngBounds bounds = new LatLngBounds.Builder().include(northeast)
                    .include(southwest).build();
    
            OverlayOptions ooGround = new GroundOverlayOptions()
                    .positionFromBounds(bounds).image(bdGround).transparency(0.8f);
            mBaiduMap.addOverlay(ooGround);
    
            MapStatusUpdate u = MapStatusUpdateFactory
                    .newLatLng(bounds.getCenter());
            mBaiduMap.setMapStatus(u);
    
            mBaiduMap.setOnMarkerDragListener(new BaiduMap.OnMarkerDragListener() {
                public void onMarkerDrag(Marker marker) {
                }
    
                public void onMarkerDragEnd(Marker marker) {
                    Toast.makeText(
                            OverlayDemo.this,
                            "拖拽结束，新位置：" + marker.getPosition().latitude + ", "
                                    + marker.getPosition().longitude,
                            Toast.LENGTH_LONG).show();
                }
    
                public void onMarkerDragStart(Marker marker) {
                }
            });
        }
    
        /**
         * 清除所有Overlay
         *
         * @param view
         */
        public void clearOverlay(View view) {
            mBaiduMap.clear();
            mMarkerA = null;
            mMarkerB = null;
            mMarkerC = null;
            mMarkerD = null;
        }
    
        /**
         * 重新添加Overlay
         *
         * @param view
         */
        public void resetOverlay(View view) {
            clearOverlay(null);
            initOverlay();
        }
    
        private class SeekBarListener implements SeekBar.OnSeekBarChangeListener {
    
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress,
                                          boolean fromUser) {
                // TODO Auto-generated method stub
                float alpha = ((float) seekBar.getProgress()) / 10;
                if (mMarkerA != null) {
                    mMarkerA.setAlpha(alpha);
                }
                if (mMarkerB != null) {
                    mMarkerB.setAlpha(alpha);
                }
                if (mMarkerC != null) {
                    mMarkerC.setAlpha(alpha);
                }
                if (mMarkerD != null) {
                    mMarkerD.setAlpha(alpha);
                }
            }
    
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                // TODO Auto-generated method stub
            }
    
            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                // TODO Auto-generated method stub
            }
    
        }
    
        @Override
        protected void onPause() {
            // MapView的生命周期与Activity同步，当activity挂起时需调用MapView.onPause()
            mMapView.onPause();
            super.onPause();
        }
    
        @Override
        protected void onResume() {
            // MapView的生命周期与Activity同步，当activity恢复时需调用MapView.onResume()
            mMapView.onResume();
            super.onResume();
        }
    
        @Override
        protected void onDestroy() {
            // MapView的生命周期与Activity同步，当activity销毁时需调用MapView.destroy()
            mMapView.onDestroy();
            super.onDestroy();
            // 回收 bitmap 资源
            bdA.recycle();
            bdB.recycle();
            bdC.recycle();
            bdD.recycle();
            bd.recycle();
            bdGround.recycle();
        }
    
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3llYmljaGFv_size_16_color_FFFFFF_t_70]

[http_lbsyun.baidu.com]: http://lbsyun.baidu.com/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3llYmljaGFv_size_16_color_FFFFFF_t_70]: /images/20220422/ef83cd1fa20f4817bbc64c69e03d56f8.png