// 引入base相关所有的头文件
#import <BaiduMapAPI_Base/BMKBaseComponent.h>

- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // 要使用百度地图，请先启动BaiduMapManager
    BMKMapManager *mapManager = [[BMKMapManager alloc] init];
    // 如果要关注网络及授权验证事件，请设定generalDelegate参数
    BOOL ret = [_mapManager start:@"在此处输入您的授权AK"  generalDelegate:nil];
    if (!ret) {
        NSLog(@"启动引擎失败");
    }
    return YES;
}

/**
  百度地图SDK所有API均支持百度坐标（BD09）和国测局坐标（GCJ02），用此方法设置您使用的坐标类型.
  默认是BD09（BMK_COORDTYPE_BD09LL）坐标.
  如果需要使用GCJ02坐标，需要设置CoordinateType为：BMK_COORDTYPE_COMMON.
  */
if ([BMKMapManager setCoordinateTypeUsedInBaiduMapSDK: BMK_COORDTYPE_COMMON]) {
    NSLog("经纬度类型设置成功");
} else {
    NSLog("经纬度类型设置失败")
}

#import <BaiduMapAPI_Base/BMKBaseComponent.h>//引入base相关所有的头文件
#import <BaiduMapAPI_Map/BMKMapComponent.h>//引入地图功能所有的头文件

@interface ViewController ()<BMKMapViewDelegate>
@property (nonatomic, strong) BMKMapView *mapView;
@end

@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    _mapView = [[BMKMapView alloc]initWithFrame:self.view.bounds]; 
    _mapView.delegate = self;
    [self.view addSubView:_mapView];
}
@end

-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [_mapView viewWillAppear];
}
-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [_mapView viewWillDisappear];
}

// 将当前地图显示缩放等级设置为17级
[_mapView setZoomLevel:17];

// 设置地图背景网格图片
_mapView.backgroundImage = [UIImage imageNamed:@"background_256x256"];

//显示比例尺
_mapView.showMapScaleBar = YES;
//隐藏比例尺
_mapView.showMapScaleBar = NO;

#import <BaiduMapAPI_Base/BMKBaseComponent.h>//引入base相关所有的头文件
#import <BaiduMapAPI_Map/BMKMapComponent.h>//引入地图功能所有的头文件

@property (nonatomic, strong) BMKMapView *upsideMapView; //当前界面上方的mapView
@property (nonatomic, strong) BMKMapView *undersideMapView; //当前界面下方的mapView

_upsideMapView = [[BMKMapView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, (self.view.frame.size.height) / 2.0)];
_undersideMapView = [[BMKMapView alloc] initWithFrame:CGRectMake(0, (self.view.frame.size.height) / 2.0 + 10, self.view.frame.size.width, (self.view.frame.size.height) / 2.0 - 10)];

//将upsideMapView添加到当前视图中
[self.view addSubview:_upsideMapView];
//将undersideMapView添加到当前视图中
[self.view addSubview:_undersideMapView];

//设置upsideMapView的代理
_upsideMapView.delegate = self;
//设置undersideMapView的代理
_undersideMapView.delegate = self;

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    //当upsideMapView即将被显示的时候调用，恢复之前存储的upsideMapView状态
    [_upsideMapView viewWillAppear];
    //当undersideMapView即将被显示的时候调用，恢复之前存储的undersideMapView状态
    [_undersideMapView viewWillAppear];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    //当upsideMapView即将被隐藏的时候调用，存储当前upsideMapView的状态
    [_upsideMapView viewWillDisappear];
    //当undersideMapView即将被隐藏的时候调用，存储当前undersideMapView的状态
    [_undersideMapView viewWillDisappear];
}

//设置upsideMapView的缩放等级
 [_upsideMapView setZoomLevel:17];
//设置undersideMapView的缩放等级
 [_undersideMapView setZoomLevel:20];