MKMapView的错误

Question

当我在地图下方创建故事板时，会占用整个屏幕。这是可以理解的，我用下面的代码来使用视图的整个边界。但是，如果我做一个正常的“初始化”，我会失去地图的功能！地图通常会放大我的位置和其他一些东西。当我使用init而不是initWithFrame时，地图不会到达我的位置。

self.myMapView =[[MKMapView alloc]initWithFrame:self.view.bounds]; 

self.myMapView.delegate=self; 

如何初始化地图而不需要像我的故事板中显示的那样接管整个屏幕。 iOS新手，感谢您的帮助！

//Setting up the location manger for finding the User's location 
self.locationManager = [[CLLocationManager alloc]init]; 
self.locationManager.delegate = self; 

//Check to see if they have Authorization to use to use location servieces 
if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) 
{ 
    [self.locationManager requestAlwaysAuthorization]; 
} 

    [self.locationManager startUpdatingLocation]; 


//Initialize the map and specifiy bounds 
self.myMapView =[[MKMapView alloc]initWithFrame:self.view.bounds]; 

//Set the delegate to itself 
self.myMapView.delegate=self; 

//Set a standard mapview, Enable scrolling and zooming 
self.myMapView.mapType = MKMapTypeStandard; 
self.myMapView.scrollEnabled = YES; 
self.myMapView.zoomEnabled = YES; 
//specifcy resizing 
self.myMapView.autoresizingMask = UIViewAutoresizingFlexibleWidth |  UIViewAutoresizingFlexibleTopMargin; 

//show the User's location and set tracking mode 
self.myMapView.showsUserLocation = YES; 
self.myMapView.userTrackingMode = MKUserTrackingModeFollow; 

//add the VIEW!! 
[self.view addSubview:self.myMapView]; 

//Set up the UISearch Bar 
self.mySearch = [[UISearchBar alloc]init]; 
self.mySearch.delegate = self; 

//Set the initial Text 
self.mySearch.prompt = @"Enter Address or Use Current Location"; 

Answer 1

有创建地图视图两种方法。

1.创建代码。如你的例子所示。您需要设置地图视图框架。如果您首先需要创建UISearchBar，则应根据搜索栏位置设置地图视图框架。它可能看起来像这样。

self.mySearch = [[UISearchBar alloc] init]; 
self.mySearch.frame = CGRectMake(0, 0, self.view.frame.size.width, 40); 
//... 
self.myMapView = [[MKMapView alloc] init]; 
self.myMapView.frame = CGRectMake(0, self.mySearch.frame.size.height, self.view.frame.size.width, self.view.frame.size.height - self.mySearch.frame.size.height); 
//... 

2.更简单的方法 - 创建故事板。首先，不需要在代码中创建您的网点（例如搜索栏和地图视图）。您只需简单拖动即可拖放所有要查看的控件。打开故事板，将视图控制器类从UIViewController设置为您的类名称。

注意的属性必须是IBOutlets

@property (nonatomic,weak) IBOutlet MKMapView *myMapView; 
@property (nonatomic,weak) IBOutlet UISearchBar *mySearchBar; 

下探您的控件来查看后，必须可视控件连接到你的类网点。看看这个连接被解释的tutorial。