android 开源库osmdroid绘制点线面（比例尺，缩小放大，导航图标等）

osmdroid绘制点线面（比例尺，缩小放大，导航图标等），地图的基本用法都有。需要注意就是自已位置的图标出现，一定要有打开gps，打开gps之后，获取屏幕地图的坐标也是能获取的。这次的项目代码打包，在之前两篇的osmdroid 相关博客基础上扩展的。所以有更加全面的介绍。

android osmdroid 加载常用离线地图格式（开源的在线地图）

android osmdroid 加载离线地图map格式以及地图网格绘制

这篇博客的项目代码：http://download.csdn.net/detail/qq_16064871/9826842

1，图片介绍

这就是项目整体功能了。

2，绘制5万个点

这是5万个点用一个图层来绘制，当然你也可以使用ondraw 一个个点换算屏幕坐标的绘制。

package com.osmdroid.sample.overlay;import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;
import android.widget.Toast;import com.osmdroid.sample.util.BaseSampleFragment;import org.osmdroid.api.IGeoPoint;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.simplefastpoint.LabelledGeoPoint;
import org.osmdroid.views.overlay.simplefastpoint.SimpleFastPointOverlay;
import org.osmdroid.views.overlay.simplefastpoint.SimpleFastPointOverlayOptions;
import org.osmdroid.views.overlay.simplefastpoint.SimplePointTheme;import java.util.ArrayList;
import java.util.List;/*** Example of SimpleFastPointOverlay* Created by Miguel Porto on 12-11-2016.*/public class SampleSimpleFastPointOverlay extends BaseSampleFragment {@Overridepublic String getSampleTitle() {return "Simple Fast Point Overlay with 10k points";}@Overrideprotected void addOverlays() {super.addOverlays();// create 10k labelled points// in most cases, there will be no problems of displaying >100k points, feel free to tryList<IGeoPoint> points = new ArrayList<>();for (int i = 0; i < 50000; i++) {points.add(new LabelledGeoPoint(37 + Math.random() * 5, -8 + Math.random() * 5, "Point #" + i));}// wrap them in a themeSimplePointTheme pt = new SimplePointTheme(points, true);// create label stylePaint textStyle = new Paint();textStyle.setStyle(Paint.Style.FILL);textStyle.setColor(Color.parseColor("#0000ff"));textStyle.setTextAlign(Paint.Align.CENTER);textStyle.setTextSize(24);// set some visual options for the overlay// we use here MAXIMUM_OPTIMIZATION algorithm, which works well with >100k pointsSimpleFastPointOverlayOptions opt = SimpleFastPointOverlayOptions.getDefaultStyle().setAlgorithm(SimpleFastPointOverlayOptions.RenderingAlgorithm.MAXIMUM_OPTIMIZATION).setRadius(7).setIsClickable(true).setCellSize(15).setTextStyle(textStyle);// create the overlay with the themefinal SimpleFastPointOverlay sfpo = new SimpleFastPointOverlay(pt, opt);// onClick callbacksfpo.setOnClickListener(new SimpleFastPointOverlay.OnClickListener() {@Overridepublic void onClick(SimpleFastPointOverlay.PointAdapter points, Integer point) {Toast.makeText(mMapView.getContext(), "You clicked " + ((LabelledGeoPoint) points.get(point)).getLabel(), Toast.LENGTH_SHORT).show();}});// add overlaymMapView.getOverlays().add(sfpo);// zoom to its bounding boxmMapView.addOnFirstLayoutListener(new MapView.OnFirstLayoutListener() {@Overridepublic void onFirstLayout(View v, int left, int top, int right, int bottom) {if(mMapView != null && mMapView.getController() != null) {mMapView.getController().zoomTo(6);mMapView.zoomToBoundingBox(sfpo.getBoundingBox(), true);}}});}}

另外一种绘制的形式

package com.osmdroid.sample.overlay;import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Point;import org.osmdroid.views.MapView;
import org.osmdroid.views.Projection;
import org.osmdroid.views.overlay.Overlay;/*** 自定义绘制的地图坐标*/
public class CustomPointOverlay extends Overlay {private final Point mMapCoordsProjected = new Point();private final Point mMapCoordsTranslated = new Point();protected Paint mCirclePaint = new Paint();public CustomPointOverlay() {}static CustomPointOverlay mGisOverlay = null;public static CustomPointOverlay GetInstance() {if (mGisOverlay == null) {synchronized (CustomPointOverlay.class) {if (mGisOverlay == null) {mGisOverlay = new CustomPointOverlay();}}}return mGisOverlay;}@Overridepublic void draw(Canvas canvas, MapView mapView, boolean shadow) {//经纬度坐标到屏幕坐标的转换mapView.getProjection().toProjectedPixels(23.12658183, 113.365588756, mMapCoordsProjected);Projection pj = mapView.getProjection();pj.toPixelsFromProjected(mMapCoordsProjected, mMapCoordsTranslated);//            final float radius = lastFix.getAccuracy()
//                    / (float) TileSystem.GroundResolution(lastFix.getLatitude(),
//                    mapView.getZoomLevel());final float radius = 10L;mCirclePaint.setColor(Color.BLUE);mCirclePaint.setStyle(Paint.Style.FILL);canvas.drawCircle(mMapCoordsTranslated.x, mMapCoordsTranslated.y, radius, mCirclePaint);}
}

3，绘制线

绘制线也是一样啦。使用这个类就行，Polyline

      // create 10k labelled points// in most cases, there will be no problems of displaying >100k points, feel free to tryList<org.osmdroid.util.GeoPoint> points = new ArrayList<>();for (int i = 0; i < 1000; i++) {points.add(new GeoPoint(37 + Math.random() * 5, -8 + Math.random() * 5, 0));}//随机产生的1000个点并连成线if(points.size()>0){org.osmdroid.views.overlay.Polyline Polyline=new org.osmdroid.views.overlay.Polyline();Polyline.setWidth(2);Polyline.setColor(0xFF1B7BCD);Polyline.setPoints(points);mapView.getOverlays().add(Polyline);}//计算边界值，定位边界final BoundingBox box = new BoundingBox(37,-8,42,-3);// zoom to its bounding boxmapView.addOnFirstLayoutListener(new MapView.OnFirstLayoutListener() {@Overridepublic void onFirstLayout(View v, int left, int top, int right, int bottom) {if(mapView != null && mapView.getController() != null) {mapView.getController().zoomTo(6);mapView.zoomToBoundingBox(box, true);}}});}//如果线的绘制，要实时绘制，可采用类似格网绘图，及时地图增加移动，放大，缩小里面监听//进行图层的重绘

4，绘制面

使用 polygon

        // create 10k labelled points// in most cases, there will be no problems of displaying >100k points, feel free to tryList<GeoPoint> points = new ArrayList<>();for (int i = 0; i < 1000; i++) {points.add(new GeoPoint(37 + Math.random() * 5, -8 + Math.random() * 5, 0));}//随机产生的1000个点并连成面if(points.size()>0){org.osmdroid.views.overlay.Polygon polygon=new org.osmdroid.views.overlay.Polygon();polygon.setStrokeWidth(1);polygon.setFillColor(0x8032B5EB);polygon.setStrokeColor(Color.BLUE);polygon.setPoints(points);mapView.getOverlays().add(polygon);}//计算边界值，定位边界final BoundingBox box = new BoundingBox(37,-8,42,-3);// zoom to its bounding boxmapView.addOnFirstLayoutListener(new MapView.OnFirstLayoutListener() {@Overridepublic void onFirstLayout(View v, int left, int top, int right, int bottom) {if(mapView != null && mapView.getController() != null) {mapView.getController().zoomTo(6);mapView.zoomToBoundingBox(box, true);}}});

5，基本配置，比例尺，缩小，放大

package com.osmdroid.sample;import android.graphics.Color;
import android.graphics.Paint;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.Toast;import org.osmdroid.api.IGeoPoint;
import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.ScaleBarOverlay;
import org.osmdroid.views.overlay.compass.CompassOverlay;
import org.osmdroid.views.overlay.compass.InternalCompassOrientationProvider;
import org.osmdroid.views.overlay.gestures.RotationGestureOverlay;
import org.osmdroid.views.overlay.mylocation.GpsMyLocationProvider;
import org.osmdroid.views.overlay.mylocation.MyLocationNewOverlay;
import org.osmdroid.views.overlay.simplefastpoint.LabelledGeoPoint;
import org.osmdroid.views.overlay.simplefastpoint.SimpleFastPointOverlay;
import org.osmdroid.views.overlay.simplefastpoint.SimpleFastPointOverlayOptions;
import org.osmdroid.views.overlay.simplefastpoint.SimplePointTheme;import java.util.ArrayList;
import java.util.List;public class BasicMapTestActivity extends AppCompatActivity implements View.OnClickListener {private MapView mapView;//地图旋转private RotationGestureOverlay mRotationGestureOverlay;//比例尺private ScaleBarOverlay mScaleBarOverlay;//指南针方向private CompassOverlay mCompassOverlay = null;//设置导航图标的位置private MyLocationNewOverlay mLocationOverlay;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_basic_test);initView();}private void initView() {findViewById(R.id.button1).setOnClickListener(this);findViewById(R.id.button2).setOnClickListener(this);findViewById(R.id.button3).setOnClickListener(this);findViewById(R.id.button4).setOnClickListener(this);mapView = (MapView) findViewById(R.id.mymapview);mapView.setDrawingCacheEnabled(true);mapView.setMaxZoomLevel(20);mapView.setMinZoomLevel(6);mapView.getController().setZoom(12);mapView.setTileSource(TileSourceFactory.MAPNIK);mapView.setUseDataConnection(true);mapView.setMultiTouchControls(true);// 触控放大缩小//是否显示地图数据源mapView.getOverlayManager().getTilesOverlay().setEnabled(true);//地图自由旋转mRotationGestureOverlay = new RotationGestureOverlay(mapView);mRotationGestureOverlay.setEnabled(true);mapView.getOverlays().add(this.mRotationGestureOverlay);//比例尺配置final DisplayMetrics dm = getResources().getDisplayMetrics();mScaleBarOverlay = new ScaleBarOverlay(mapView);mScaleBarOverlay.setCentred(true);mScaleBarOverlay.setAlignBottom(true); //底部显示mScaleBarOverlay.setScaleBarOffset(dm.widthPixels / 5, 80);mapView.getOverlays().add(this.mScaleBarOverlay);//指南针方向mCompassOverlay = new CompassOverlay(this, new InternalCompassOrientationProvider(this),mapView);mCompassOverlay.enableCompass();mapView.getOverlays().add(this.mCompassOverlay);//设置导航图标this.mLocationOverlay = new MyLocationNewOverlay(new GpsMyLocationProvider(this),mapView);mapView.getOverlays().add(this.mLocationOverlay);mLocationOverlay.enableMyLocation();  //设置可视}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1://定位当前的位置，并设置缩放级别mapView.getController().setZoom(18);mapView.getController().setCenter(new GeoPoint(23.12648183, 113.365548756));break;case R.id.button2: //绘制点List<IGeoPoint> points = new ArrayList<>();points.add(new LabelledGeoPoint(23.12658183, 113.365588756 , "Point #" + 1));points.add(new LabelledGeoPoint(23.12647183, 113.365558756 , "Point #" + 2));// wrap them in a themeSimplePointTheme pt = new SimplePointTheme(points, true);// create label stylePaint textStyle = new Paint();textStyle.setStyle(Paint.Style.FILL);textStyle.setColor(Color.parseColor("#0000ff"));textStyle.setTextAlign(Paint.Align.CENTER);textStyle.setTextSize(24);// set some visual options for the overlay// we use here MAXIMUM_OPTIMIZATION algorithm, which works well with >100k pointsSimpleFastPointOverlayOptions opt = SimpleFastPointOverlayOptions.getDefaultStyle().setAlgorithm(SimpleFastPointOverlayOptions.RenderingAlgorithm.MAXIMUM_OPTIMIZATION).setRadius(7).setIsClickable(true).setCellSize(15).setTextStyle(textStyle);// create the overlay with the themefinal SimpleFastPointOverlay sfpo = new SimpleFastPointOverlay(pt, opt);// onClick callbacksfpo.setOnClickListener(new SimpleFastPointOverlay.OnClickListener() {@Overridepublic void onClick(SimpleFastPointOverlay.PointAdapter points, Integer point) {Toast.makeText(mapView.getContext(), "You clicked " + ((LabelledGeoPoint) points.get(point)).getLabel(), Toast.LENGTH_SHORT).show();}});// add overlaymapView.getOverlays().add(sfpo);break;case R.id.button3://缩小mapView.getController().zoomOut();break;case R.id.button4://放大mapView.getController().zoomIn();break;}}@Overridepublic void onPause() {this.mLocationOverlay.disableMyLocation();super.onPause();}@Overridepublic void onResume() {super.onResume();}
}

package com.osmdroid.sample;import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.DisplayMetrics;
import android.view.View;import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.ScaleBarOverlay;
import org.osmdroid.views.overlay.compass.CompassOverlay;
import org.osmdroid.views.overlay.compass.InternalCompassOrientationProvider;
import org.osmdroid.views.overlay.gestures.RotationGestureOverlay;
import org.osmdroid.views.overlay.mylocation.GpsMyLocationProvider;
import org.osmdroid.views.overlay.mylocation.MyLocationNewOverlay;public class BasicMapTestActivity3 extends AppCompatActivity implements View.OnClickListener ,LocationListener {private MapView mapView;//地图旋转private RotationGestureOverlay mRotationGestureOverlay;//比例尺private ScaleBarOverlay mScaleBarOverlay;//指南针方向private CompassOverlay mCompassOverlay = null;//设置导航图标的位置private MyLocationNewOverlay mLocationOverlay;private LocationManager lm;private Location currentLocation = null;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_basic_test_3);initView();}private void initView() {findViewById(R.id.button1).setOnClickListener(this);findViewById(R.id.button2).setOnClickListener(this);mapView = (MapView) findViewById(R.id.mymapview);mapView.setDrawingCacheEnabled(true);mapView.setMaxZoomLevel(20);mapView.setMinZoomLevel(6);mapView.getController().setZoom(12);mapView.setTileSource(TileSourceFactory.MAPNIK);mapView.setUseDataConnection(true);mapView.setMultiTouchControls(true);// 触控放大缩小//是否显示地图数据源mapView.getOverlayManager().getTilesOverlay().setEnabled(true);//地图自由旋转mRotationGestureOverlay = new RotationGestureOverlay(mapView);mRotationGestureOverlay.setEnabled(true);mapView.getOverlays().add(this.mRotationGestureOverlay);//比例尺配置final DisplayMetrics dm = getResources().getDisplayMetrics();mScaleBarOverlay = new ScaleBarOverlay(mapView);mScaleBarOverlay.setCentred(true);mScaleBarOverlay.setAlignBottom(true); //底部显示mScaleBarOverlay.setScaleBarOffset(dm.widthPixels / 5, 80);mapView.getOverlays().add(this.mScaleBarOverlay);//指南针方向mCompassOverlay = new CompassOverlay(this, new InternalCompassOrientationProvider(this),mapView);mCompassOverlay.enableCompass();mapView.getOverlays().add(this.mCompassOverlay);//设置导航图标this.mLocationOverlay = new MyLocationNewOverlay(new GpsMyLocationProvider(this),mapView);mapView.getOverlays().add(this.mLocationOverlay);mLocationOverlay.enableMyLocation();  //设置可视}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1:if (currentLocation != null) {GeoPoint myPosition = new GeoPoint(currentLocation.getLatitude(), currentLocation.getLongitude());mapView.getController().animateTo(myPosition);}break;case R.id.button2:if (!mLocationOverlay.isFollowLocationEnabled()) {mLocationOverlay.enableFollowLocation();} else {mLocationOverlay.disableFollowLocation();}break;}}@Overridepublic void onLocationChanged(Location location) {currentLocation=location;}@Overridepublic void onStatusChanged(String provider, int status, Bundle extras) {}@Overridepublic void onProviderEnabled(String provider) {}@Overridepublic void onProviderDisabled(String provider) {}@Overridepublic void onPause() {super.onPause();try{lm.removeUpdates(this);}catch (Exception ex){}mCompassOverlay.disableCompass();mLocationOverlay.disableFollowLocation();mLocationOverlay.disableMyLocation();mScaleBarOverlay.enableScaleBar();}@Overridepublic void onResume(){super.onResume();lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);try{//this fails on AVD 19s, even with the appcompat check, says no provided named gps is availablelm.requestLocationUpdates(LocationManager.GPS_PROVIDER,0l,0f,this);}catch (Exception ex){}try{lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0l,0f,this);}catch (Exception ex){}mLocationOverlay.enableFollowLocation();mLocationOverlay.enableMyLocation();mScaleBarOverlay.disableScaleBar();}
}

package com.osmdroid.sample;import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.DisplayMetrics;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Toast;import com.osmdroid.sample.overlay.CustomPointOverlay;
import com.osmdroid.sample.util.SomeDataMapManger;import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import org.osmdroid.views.overlay.ScaleBarOverlay;
import org.osmdroid.views.overlay.compass.CompassOverlay;
import org.osmdroid.views.overlay.compass.InternalCompassOrientationProvider;
import org.osmdroid.views.overlay.gestures.RotationGestureOverlay;
import org.osmdroid.views.overlay.mylocation.GpsMyLocationProvider;
import org.osmdroid.views.overlay.mylocation.MyLocationNewOverlay;public class BasicMapTestActivity2 extends AppCompatActivity implements View.OnClickListener {private MapView mapView;//地图旋转private RotationGestureOverlay mRotationGestureOverlay;//比例尺private ScaleBarOverlay mScaleBarOverlay;//指南针方向private CompassOverlay mCompassOverlay = null;//设置导航图标的位置private MyLocationNewOverlay mLocationOverlay;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_basic_test_2);initView();}private void initView() {findViewById(R.id.button1).setOnClickListener(this);findViewById(R.id.button2).setOnClickListener(this);findViewById(R.id.button3).setOnClickListener(this);findViewById(R.id.button4).setOnClickListener(this);mapView = (MapView) findViewById(R.id.mymapview);mapView.setDrawingCacheEnabled(true);mapView.setMaxZoomLevel(20);mapView.setMinZoomLevel(6);mapView.getController().setZoom(12);mapView.setTileSource(TileSourceFactory.MAPNIK);mapView.setUseDataConnection(true);mapView.setMultiTouchControls(true);// 触控放大缩小//是否显示地图数据源mapView.getOverlayManager().getTilesOverlay().setEnabled(true);//地图自由旋转mRotationGestureOverlay = new RotationGestureOverlay(mapView);mRotationGestureOverlay.setEnabled(true);mapView.getOverlays().add(this.mRotationGestureOverlay);//比例尺配置final DisplayMetrics dm = getResources().getDisplayMetrics();mScaleBarOverlay = new ScaleBarOverlay(mapView);mScaleBarOverlay.setCentred(true);mScaleBarOverlay.setAlignBottom(true); //底部显示mScaleBarOverlay.setScaleBarOffset(dm.widthPixels / 5, 80);mapView.getOverlays().add(this.mScaleBarOverlay);//指南针方向mCompassOverlay = new CompassOverlay(this, new InternalCompassOrientationProvider(this),mapView);mCompassOverlay.enableCompass();mapView.getOverlays().add(this.mCompassOverlay);//设置导航图标this.mLocationOverlay = new MyLocationNewOverlay(new GpsMyLocationProvider(this),mapView);mapView.getOverlays().add(this.mLocationOverlay);mLocationOverlay.enableMyLocation();  //设置可视}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1://定位当前的位置，并设置缩放级别mapView.getController().setZoom(18);mapView.getController().setCenter(new GeoPoint(23.12648183, 113.365548756));break;case R.id.button2: //绘制点// add overlaymapView.getOverlays().add(CustomPointOverlay.GetInstance());break;case R.id.button3://屏幕点击的坐标//这个功能的使用，需要打开gps，就是说gps有数据MyLocationOverlayWithClick overlay = new MyLocationOverlayWithClick(mapView);overlay.enableFollowLocation();overlay.enableMyLocation();mapView.getOverlayManager().add(overlay);break;case R.id.button4:SomeDataMapManger.initGeoJsonData(mapView,this);mapView.getController().setZoom(12);mapView.getController().setCenter(new GeoPoint(23.12648183, 113.365548756));break;}}public static class MyLocationOverlayWithClick extends MyLocationNewOverlay{public MyLocationOverlayWithClick(MapView mapView) {super(mapView);}@Overridepublic boolean onSingleTapConfirmed(MotionEvent e, MapView map) {if (getLastFix() != null)Toast.makeText(map.getContext(), "Tap! I am at " + getLastFix().getLatitude() + "," + getLastFix().getLongitude(), Toast.LENGTH_LONG).show();return true;}}@Overridepublic void onPause() {this.mLocationOverlay.disableMyLocation();super.onPause();}@Overridepublic void onResume() {super.onResume();}
}

android osmdroid 加载常用离线地图格式（开源的在线地图）

android osmdroid 加载离线地图map格式以及地图网格绘制

这篇博客的项目代码：http://download.csdn.net/detail/qq_16064871/9826842

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android 开源库osmdroid绘制点线面（比例尺，缩小放大，导航图标等）

1，图片介绍

2，绘制5万个点

3，绘制线

4，绘制面

5，基本配置，比例尺，缩小，放大

android osmdroid 加载常用离线地图格式（开源的在线地图）

android osmdroid 加载离线地图map格式以及地图网格绘制

这篇博客的项目代码：http://download.csdn.net/detail/qq_16064871/9826842

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