iOS 百度地图使用详解

　　最近仿照美团做了款应用，刚好用到百度地图，高德地图之前用的比较多，只是这个项目的后台服务器是另外一个公司做的，他们用的就是百度地图，现在网上用百度地图的还不算太多，博文也是断断续续的，主要是中间跳跃有点大，没有可运行的demo,看不到效果。纠结了好久，结合别人的总结和从百度官网上下载的demo，详细记录一下百度地图的使用过程，分享一下，也便于以后查阅使用。

　　百度地图的使用和苹果一样，相对于高德地图来说规范了好多。直接将程序的bundle Identity和appkey值绑定，虽然刚开始用感觉有点不习惯，相信规范严谨对于国内的程序开发也算是一种引导吧。闲言少絮，下面开始百度地图的使用说明。

第一步：注册百度账号，申请appkey。直接上图片效果比较直接。，这里面有个小插曲，当初习惯性地将禁用服务ios地图sdk勾选上，做了无数次的测试一直不显示地图页面。纠结了好久，偶然间想到可能是appkey的问题，重新走了一遍，原来把禁用服务勾选上了，改过来就好了，做我们这行的严谨、认真还是很有必要地。

第二步：将百度地图sdk包添加到程序，在AppDelegate导入

#import<CoreLocation/CoreLocation.h>

#import "AGViewDelegate.h"

#import "BMapKit.h"

上述文件，添加如下委托和对象

@interface AppDelegate : UIResponder <UIApplicationDelegate,CLLocationManagerDelegate,BMKGeneralDelegate>

{

AGViewDelegate *_viewDelegate;//

BMKMapManager* _mapManager;//百度地图管理器

}

并在

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions中调用开启百度地图定位的方法

//地图

- (void)configureAPIKey

{

_mapManager = [[BMKMapManager alloc] init];

BOOL ret = [_mapManager start:@"appkey"generalDelegate:self];

if (ret)

{

NSLog(@"百度地图开启定位：");

}

}

第三步：百度地图视图和百度位置服务的使用

在使用地图的页面导入百度地图文件

#import "BMapKit.h"

添加

BMKMapViewDelegate,BMKLocationServiceDelegate委托对象

@property(nonatomic,retain)BMKMapView* baiduMapView;//地图视图

@property(nonatomic,retain)BMKLocationService* locationService;//百度地图定位服务对象

@synthesize baiduMapView;

@synthesize locationService;

当然不用的时候需要释放掉

if (baiduMapView)

{

[baiduMapView release];

baiduMapView = nil;

}

if (locationService)

{

[locationService release];

locationService = nil;

}

- (void)viewWillAppear:(BOOL)animated

{

[super viewWillAppear:animated];

baiduMapView.delegate = self;

locationService.delegate = self;

}

-(void)viewWillDisappear:(BOOL)animated

{

[baiduMapView viewWillDisappear];

baiduMapView.delegate = nil;

locationService.delegate = nil;

[super viewWillDisappear:animated];

}

当然在使用地图视图控件之前需要先开启百度地图的定位服务

//初始化定位服务对象

self.locationService = [[[BMKLocationService alloc]init]autorelease];

locationService.delegate=self;

//显示定位的蓝点儿必须先开启定位服务

[locationService startUserLocationService];

接下来就是地图视图控件使用了

self.baiduMapView = [[[BMKMapView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)]autorelease];

//初始化百度地图对象

baiduMapView.delegate = self;

[baiduMapView setMapType:BMKMapTypeStandard];

baiduMapView.zoomLevel=17;//地图级别

//显示定位的蓝点儿必须先开启定位服务

[locationService startUserLocationService];

[baiduMapView setShowsUserLocation:NO];

baiduMapView.userTrackingMode=BMKUserTrackingModeNone;//地图模式

[baiduMapView setShowsUserLocation:YES];//显示定位的蓝点儿

coordinate.latitude = [XtomFunction xfuncGetAppdelegate].currentLocation.coordinate.latitude;//纬度

coordinate.longitude = [XtomFunction xfuncGetAppdelegate].currentLocation.coordinate.longitude;//经度

BMKCoordinateRegion viewRegion = BMKCoordinateRegionMake(coordinate, BMKCoordinateSpanMake(0.3,0.3));

BMKCoordinateRegion adjustedRegion = [baiduMapView regionThatFits:viewRegion];

[baiduMapView setRegion:adjustedRegion animated:YES];

到这里已经可以展示地图信息数据了，当然一些复杂的东西需要下面的委托实现

第四步：百度地图中常用委托方法的使用

/**

*用户方向更新后，会调用此函数

*@param userLocation 新的用户位置

*/

- (void)didUpdateUserHeading:(BMKUserLocation *)userLocation

{

[baiduMapView updateLocationData:userLocation];

NSLog(@"heading is %@,%f,%f,%f,%f,%f,%f",userLocation.heading,userLocation.location.coordinate.latitude,userLocation.location.coordinate.longitude,localLatitude,localLongitude,coordinate.latitude,coordinate.longitude);

NSLog(@"dingweifuwu:%f,%f",locationService.userLocation.location.coordinate.latitude,locationService.userLocation.location.coordinate.longitude);

NSLog(@"dangqian:%f,%f",locationService.userLocation.location.coordinate.latitude,locationService.userLocation.location.coordinate.longitude);

/*

//改变成百度经纬度

AppDelegate *myDelegate = [XtomFunction xfuncGetAppdelegate];

myDelegate.currentLocation = userLocation.location;

myDelegate.myCoordinate=CLLocationCoordinate2DMake(userLocation.location.coordinate.latitude, userLocation.location.coordinate.longitude);*/

}

//开始缩放委托

- (void)mapView:(BMKMapView *)mapView regionWillChangeAnimated:(BOOL)animated;

{

NSString* showmeg = [NSString stringWithFormat:@"地图区域发生了变化(x=%d,y=%d,\r\nwidth=%d,height=%d).\r\nZoomLevel=%d;RotateAngle=%d;OverlookAngle=%d",(int)baiduMapView.visibleMapRect.origin.x,(int)baiduMapView.visibleMapRect.origin.y,(int)baiduMapView.visibleMapRect.size.width,(int)baiduMapView.visibleMapRect.size.height,(int)baiduMapView.zoomLevel,baiduMapView.rotation,baiduMapView.overlooking];

NSLog(@"gesturescale:%@",showmeg);

CLLocationCoordinate2D firstLocation=[baiduMapView convertPoint:CGPointMake(0, 0) toCoordinateFromView:baiduMapView];

CLLocationCoordinate2D secondLocation=[baiduMapView convertPoint:CGPointMake(0, UI_View_Hieght+64) toCoordinateFromView:baiduMapView];

distance=[XtomFunction distanceBetweenOrderBy:firstLocation.latitude :firstLocation.longitude :secondLocation.latitude :secondLocation.longitude]/2;

//第一次获取数据的时候不加载

if (isFirstLoad)

{

localLatitude=baiduMapView.centerCoordinate.latitude;

localLongitude=baiduMapView.centerCoordinate.longitude;

//重新获取数据

[self requestGetLocationList];

}

}

//原理类似 UITableView 循环委托加载 CellforRowWithIndexPath

- (BMKAnnotationView *)mapView:(BMKMapView *)view viewForAnnotation:(id <BMKAnnotation>)annotation

{

//商家详情

if (isShangjia)

{

if ([annotation isKindOfClass:[BMKPointAnnotation class]])

{

// 生成重用标示identifier

NSString *AnnotationViewID = @"shangjia";

// 检查是否有重用的缓存

BMKAnnotationView* annotationView = [baiduMapView dequeueReusableAnnotationViewWithIdentifier:AnnotationViewID];

// 缓存没有命中，自己构造一个，一般首次添加annotation代码会运行到此处

if (annotationView == nil)

{ annotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationViewID]; ((BMKPinAnnotationView*)annotationView).pinColor = BMKPinAnnotationColorRed;

// 设置重天上掉下的效果(annotation)

((BMKPinAnnotationView*)annotationView).animatesDrop = YES; }

// 设置位置

annotationView.centerOffset = CGPointMake(0, -(annotationView.frame.size.height * 0.5)); annotationView.annotation = annotation;

// 单击弹出泡泡，弹出泡泡前提annotation必须实现title属性

annotationView.canShowCallout = YES;

//美食

if ([activityType isEqualToString:@"美食"])

{

annotationView.image=[UIImage imageNamed:@"美食图标.png"];

}

//丽人

else if ([activityType isEqualToString:@"丽人"])

{

annotationView.image=[UIImage imageNamed:@"丽人图标.png"];

}

//生活服务

else if ([activityType isEqualToString:@"生活服务"])

{

annotationView.image=[UIImage imageNamed:@"生活服务图标.png"];

}

//休闲娱乐

else if ([activityType isEqualToString:@"休闲娱乐"])

{

annotationView.image=[UIImage imageNamed:@"休闲娱乐图标.png"];

}

//旅游

else if ([activityType isEqualToString:@"旅游"])

{

annotationView.image=[UIImage imageNamed:@"旅游图标.png"];

}

//购物

else if ([activityType isEqualToString:@"购物"])

{

annotationView.image=[UIImage imageNamed:@"购物图标.png"];

}

//酒店

else if ([activityType isEqualToString:@"酒店"])

{

annotationView.image=[UIImage imageNamed:@"酒店图标.png"];

}

//今日订单

else if ([activityType isEqualToString:@"今日订单"])

{

annotationView.image=[UIImage imageNamed:@"今日订单图标.png"];

}

//annotationView.image=[UIImage imageNamed:@"丽人图标.png"];

// 设置是否可以拖拽

annotationView.draggable = NO;

return annotationView;

/*

BMKPinAnnotationView *newAnnotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"myAnnotation"];

newAnnotationView.pinColor = BMKPinAnnotationColorPurple;

newAnnotationView.animatesDrop = YES;// 设置该标注点动画显示

newAnnotationView.annotation=annotation;

newAnnotationView.image = [UIImage imageNamed:@"丽人图标.png"];   //把大头针换成别的图片

return newAnnotationView;*/

}

}

else if (isLuxian)

{

if ([annotation isKindOfClass:[RouteAnnotation class]])

{

return [self getRouteAnnotationView:view viewForAnnotation:(RouteAnnotation*)annotation];

}

return nil;

}

}

这里介绍一下百度地图中常见的两个点,花费了我好长的时间总结出来的，分享一下吧。比如获取百度地图中当前的位置，可以在开启百度位置服务，走完

- (void)didUpdateUserHeading:(BMKUserLocation *)userLocation委托方法后，通过

locationService.userLocation.location.coordinate获得

再比如 想获取当前地图的中心点的经纬度 可以这样获得baiduMapView.centerCoordinate 还有百度地图中坐标点和地图中经纬度的转换

CLLocationCoordinate2D firstLocation=[baiduMapView convertPoint:CGPointMake(0, 0) toCoordinateFromView:baiduMapView];这个是远点的经纬度

第四步：自定义标注的添加

//添加大头钉

BMKPointAnnotation* annotation = [[BMKPointAnnotation alloc]init];

CLLocationCoordinate2D coor;

coor.latitude = localLatitude;

coor.longitude = localLongitude;

annotation.coordinate = coor;

//annotation.title = @"这里是北京";

[baiduMapView addAnnotation:annotation];

结合

//原理类似 UITableView 循环委托加载 CellforRowWithIndexPath

- (BMKAnnotationView *)mapView:(BMKMapView *)view viewForAnnotation:(id <BMKAnnotation>)annotation委托方法实现，当然还有个获取选中哪个大头钉或者标注点的委托方法

//当选中一个annotation views时，调用此接口

- (void)mapView:(BMKMapView *)mapView didSelectAnnotationView:(CustomAnnotationView *)view

{

//只展示首页的大头钉

if (isLuxian||isShangjia)

{

return;

}

//获取点击视图的区域

CLLocationCoordinate2D leftTopLocation=[baiduMapView convertPoint:CGPointMake(view.frame.origin.x, view.frame.origin.y) toCoordinateFromView:baiduMapView];

CLLocationCoordinate2D rightDownLocation=[baiduMapView convertPoint:CGPointMake(view.frame.origin.x+view.frame.size.width, view.frame.origin.y+view.frame.size.height) toCoordinateFromView:baiduMapView];

//临时数组

NSMutableArray *tempArray=[[[NSMutableArray alloc]init]autorelease];

for (int i = 0; i<detailData.count; i++)

{

NSMutableDictionary *dict = [[[NSMutableDictionary alloc] init] autorelease];

NSDictionary *temDict = [detailData objectAtIndex:i];

for(NSString *key in temDict.allKeys)

{

NSString *value = [temDict objectForKey:key];

if(![XtomFunction xfunc_check_strEmpty:value])

{

[dict setObject:value forKey:key];

}

}

//纬度

float tempLat=[[temDict objectForKey:@"lat"]floatValue];

//经度

float tempLng=[[temDict objectForKey:@"lng"]floatValue];

NSLog(@"jingweidu:%f,%f,%f,%f,%f,%f",leftTopLocation.latitude,leftTopLocation.longitude,rightDownLocation.latitude,rightDownLocation.longitude,tempLat,tempLng);

//获取该区域下的数据

if (tempLat >=rightDownLocation.latitude&&tempLat <=leftTopLocation.latitude&&tempLng >=leftTopLocation.longitude&&tempLng <=rightDownLocation.longitude)

{

[tempArray addObject:temDict];

}

}

NSLog(@"shuzu:%@",tempArray);

[view.superview insertSubview:view atIndex:1000];

view.temArr=tempArray;

view.biaozhu.dataSource=tempArray;

[view loadTableData];

[view retain];

}也一并分享一下吧。

第五步：百度地图中公交线路信息的获取和公交路线的绘制

公交、地铁、汽车、步行这几个是常见的东西这个比较麻烦一些，感兴趣的可以去百度地图的demo中查询，我给出链接吧。http://download.csdn.net/detail/kuuailetianzi/7907889 至此，百度地图的使用介绍的差不多了，我也该休息休息了。