Android百度地图踩坑（二）:基础功能使用

基础功能

1.获取MapView控件
map = (MapView) findViewById(R.id.mapView);
2.获取BaiduMap对象
 mBaiduMap = map.getMap();
3.根据经纬度定位
mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(经纬度));
4.设置地图放大层级
mBaiduMap.setMapStatus(MapStatusUpdateFactory.newMapStatus(new MapStatus.Builder().zoom(18f).build()));
5.画点
mBaiduMap.addOverlay(new MarkerOptions().position(经纬度).icon(BitmapDescriptorFactory.fromResource(图标)));
6.画线
mBaiduMap.addOverlay(new PolylineOptions().width(10).points(坐标组).dottedLine(true).customTextureList(线条组).textureIndex(线条index组));

画点详细介绍

百度地图提供的画点有两种，一种是单个单个的画，一种是一组的去画，一组的去画我试了给设置点击事件没用我详细介绍单点
获取画的这个点并赋值

MarkerOptions  options=new MarkerOptions().position(经纬度).icon(BitmapDescriptorFactory.fromResource(图标));
Marker m = (Marker) mBaiduMap.addOverlay(options);
Bundle bundle1 = new Bundle();
bundle1.putInt("index", index);
m.setExtraInfo(bundle1);
//二次设置
marker1.setPosition(位置);
marker1.setIcon(BitmapDescriptorFactory.fromResource(图标));

点击事件，我这里是弹出了一个框，点击事件点一下会执行两次，这个解决方案自行百度

mBaiduMap.setOnMarkerClickListener(new BaiduMap.OnMarkerClickListener() {
            @Override
            public boolean onMarkerClick(final Marker marker) {
                Log.d("TAG", "执行了监听图标方法");
               
                GeoCoder geoCoder = GeoCoder.newInstance();
                geoCoder.setOnGetGeoCodeResultListener(new OnGetGeoCoderResultListener() {
                    @Override
                    public void onGetReverseGeoCodeResult(ReverseGeoCodeResult arg0) {
                        View view = LayoutInflater.from(getBaseContext()).inflate(R.layout.layout_map_details, null);
                        TextView txtDate = view.findViewById(R.id.txt_map_details_date);
                        TextView txtTime = view.findViewById(R.id.txt_map_details_time);
                        TextView txtAddress = view.findViewById(R.id.txt_map_details_address);
                        txtDate.setText(runLocal.get(finalIndexMarker).getUpdatetime() + " " + localType(runLocal.get(finalIndexMarker).getSource()));
                        if (timeMin>0){
                            txtTime.setText(time);
                        }else{
                            txtTime.setText("");
                        }

                        txtAddress.setText(arg0.getAddress());
                        //创建InfoWindow , 传入 view， 地理坐标， y 轴偏移量
                        InfoWindow mInfoWindow = new InfoWindow(view, getLatLng(runLocal.get(finalIndexMarker)), -50);
                        //显示InfoWindow
                        mBaiduMap.showInfoWindow(mInfoWindow);
                        view.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                mBaiduMap.hideInfoWindow();
                            }
                        });
                    }

                    @Override
                    public void onGetGeoCodeResult(GeoCodeResult arg0) {

                    }
                });
                //设置反地理编码位置坐标
                ReverseGeoCodeOption op = new ReverseGeoCodeOption();
                
                op.location(getLatLng(runLocal.get(indexMarker)));
                //发起反地理编码请求(经纬度->地址信息)
                geoCoder.reverseGeoCode(op);
                return false;
            }
        });
    }

画线详细介绍

cav_polyline = (Polyline) mBaiduMap.addOverlay(new PolylineOptions()
.width(10) //宽度
.points()//位置组
.dottedLine(true)
.customTextureList(runBitmap)//线条组
.textureIndex(list_cav_int));//线条下标组
//二次设置
cav_polyline.setPoints(list_cav);//设置位置组等

判断经纬度是否在View上

Point pt = mBaiduMap.getMapStatus().targetScreen;
Point point = mBaiduMap.getProjection().toScreenLocation(经纬度);
if (point.x < 0 || point.x > pt.x * 2 || point.y < 0 || point.y > pt.y * 2) {
     Log.d("TAG","超出屏幕");
}

注意事项

1.画线的那个List集合存储图片的不要存相同的进去，后面那个下标组，假如图片组存了3种图片进去，那下表组子值就是0或者1或者2，长度为位置组-1
2.画点的时候，弹框出来，假如你再次定位到其他位置，弹框的位置在View上不可见的时候就会引发崩溃