视图控制器中的自定义视图

Question

我在视图控制器中有一个地图视图。它显示预输入坐标的视图。地图视图不占用整个屏幕，我在视图控制器上有其他项目。我想编辑地图视图的外观，使边缘弯曲而不是矩形地图视图。

我的看法Controller.m或者代码：

#import "ViewController.h" 
#import <MapKit/MapKit.h> 
#import <QuartzCore/QuartzCore.h> 
@interface ViewController() 

@end 
@implementation ViewController 



@synthesize topLayer = _topLayer; 
@synthesize layerPosition = _layerPosition; 
@synthesize mapView; 
- (void)viewDidLoad 
{ 
[super viewDidLoad]; 


[self gotolocation]; 



self.topLayer.layer.shadowOffset = CGSizeMake(-1,0); 
self.topLayer.layer.shadowOpacity = .9; 




self.layerPosition = self.topLayer.frame.origin.x; 

} 

#define VIEW_HIDDEN 264 

-(void) animateLayerToPoint:(CGFloat)x 
{ 
[UIView animateWithDuration:0.3 
         delay:0 
        options:UIViewAnimationCurveEaseOut 
       animations:^{ 
        CGRect frame = self.topLayer.frame; 
        frame.origin.x = x; 
        self.topLayer.frame = frame; 
       } 
       completion:^(BOOL finished){ 
        self.layerPosition =self.topLayer.frame.origin.x; 

       }]; 
} 

- (IBAction)toggleLayer:(id)sender { 


    if (self.layerPosition == VIEW_HIDDEN) { 
     [self animateLayerToPoint:0]; 
    } else { 
     [self animateLayerToPoint:VIEW_HIDDEN]; 
    } 



} 

- (IBAction)panLayer:(UIPanGestureRecognizer*)pan { 
if (pan.state == UIGestureRecognizerStateChanged) { 
    CGPoint point = [pan translationInView:self.topLayer]; 
    CGRect frame = self.topLayer.frame; 
    frame.origin.x = self.layerPosition + point.x; 
    if (frame.origin.x < 0) frame.origin.x = 0; 
    self.topLayer.frame = frame; 
} 
if (pan.state == UIGestureRecognizerStateEnded) { 
    if (self.topLayer.frame.origin.x <= 160) { 
     [self animateLayerToPoint:0]; 
    } else { 
     [self animateLayerToPoint: VIEW_HIDDEN]; 
    } 
} 
} 

- (void)didReceiveMemoryWarning 
{ 
[super didReceiveMemoryWarning]; 
// Dispose of any resources that can be recreated. 
} 



-(void) gotolocation { 


MKCoordinateRegion newRegion; 
newRegion.center.latitude = 28.533569; 
newRegion.center.longitude = 77.144776; 
newRegion.span.latitudeDelta = 0.001657; 
newRegion.span.longitudeDelta = 0.00284; 



CLLocationCoordinate2D coordinate; 
coordinate.latitude = 28.533569; coordinate.longitude = 77.144776; 

MKPointAnnotation *annotation = [[MKPointAnnotation alloc] init]; 
[annotation setCoordinate:coordinate]; 
[annotation setTitle:@"Vasant Valley School"]; 

[self.mapView addAnnotation:annotation]; 

    [self.mapView setRegion:newRegion animated:YES]; 





    } 



@end 

Answer 1

[self.mapView.layer setCornerRadius:50]; 
[self.mapView.layer setMasksToBounds:YES]; 

，并导入

#import <QuartzCore/QuartzCore.h>