自定義地圖標註視圖隱藏在水龍頭上

Question

我製作了自定義地圖標註。我的標註包含UIButtons和UITextView。當我點擊UIButton時，它會很好。但是，當我點擊UITextView它移動光標到挖掘位置，然後取消選擇引腳和消失標註...

我實現MyAnnotationView的hitTest:withEvent:方法，喜歡這裏：https://stackoverflow.com/a/13495795/440168

但正如我在日誌中看到，[super hitTest:withEvent:]從未返回nil。

這裏是我的MyAnnotationView方法：

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event 
{ 
    BOOL isInside = [super pointInside:point withEvent:event]; 
    if (isInside) 
     return YES; 

    for (UIView * subview in self.subviews) 
    { 
     if ([subview isKindOfClass:[NSClassFromString(@"UICalloutView") class]]) 
      continue; 

     CGPoint inPoint = [self convertPoint:point toView:subview]; 
     BOOL isInside = [subview pointInside:inPoint withEvent:nil]; 
     if (isInside) 
      return YES; 
    } 

    return NO; 
} 

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event 
{ 
    UIView * hitView = [super hitTest:point withEvent:event]; 
    if (hitView) 
     return hitView; 

    for (UIView * subview in self.subviews) 
    { 
     if ([subview isKindOfClass:[NSClassFromString(@"UICalloutView") class]]) 
      continue; 

     CGPoint inPoint = [self convertPoint:point toView:subview]; 
     hitView = [subview hitTest:inPoint withEvent:event]; 
     if (hitView) 
      return hitView; 
    } 

    return nil; 
} 

更新1：

這裏是我的代碼添加自定義標註的看法：

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view 
{ 
    for (UIView * subview in view.subviews) 
     subview.hidden = YES; 
    [view addSubview:self.myCalloutView]; 
    self.myCalloutView.center = CGPointMake(view.bounds.size.width/2,-self.myCalloutView.bounds.size.height/2); 

    // ... 
} 

更新2：

我剛剛用durty hack實現了我的MKMapView子類。但是，這工作！

@implementation HNPMapView 

- (void)handleTap:(UITapGestureRecognizer *)recognizer 
{ 
    for (UIView * v in [self findSubviewsOfClass:[MyCallout class]]) { 
     CGPoint point = [recognizer locationInView:v]; 
     if (CGRectContainsPoint(v.bounds, point)) 
      return; 
    } 

    //[super performSelector:@selector(handleTap:) withObject:recognizer]; 
    void (*functionPointer)(id,SEL,...) = [MKMapView instanceMethodForSelector:@selector(handleTap:)]; 
    functionPointer(self,@selector(handleTap:),recognizer); 
} 

@end 

而且使用該類別找到標註在視圖層次：

@interface UIView (FindSubview) 
- (NSArray *)findSubviewsOfClass:(Class)class; 
@end 
@implementation UIView (FindSubview) 
- (NSArray *)findSubviewsOfClass:(Class)class 
{ 
    NSMutableArray * found = [NSMutableArray array]; 
    for (UIView * subview in self.subviews) 
    { 
     if ([subview isKindOfClass:class]) 
      [found addObject:subview]; 
     [found addObjectsFromArray:[subview findSubviewsOfClass:class]]; 
    } 
    return found; 
} 
@end 

Answer 1

中則hitTest方法，你應該創建一個虛擬矩形根據你的對象是可觸摸定義觸摸區域。

在UICalloutView中，您應該使用另一個循環來查找您的UITextView。

之後，您應該根據您的UITextView尺寸和UICalloutView視圖原點定義此虛擬矩形。

你也不需要在for循環中使用continue語句， 當返回時，所有的循環都會立即停止。

所以你則hitTest方法應該是這樣的，

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event 
{ 
    UIView * hitView = [super hitTest:point withEvent:event]; 

    if (hitView) 
     return hitView; 

    for (UIView * subview in self.subviews) 
    { 

     if ([subview isKindOfClass:[NSClassFromString(@"UICalloutView") class]]) { 

      for(UIView *subTextView in subview.subviews){ 
       if([subTextView isKindOfClass:[UITextView class]]){ 

        CGRect touchableArea = CGRectMake(subview.frame.origin.x, subview.frame.origin.y, subTextView.frame.size.width, subTextView.frame.size.height); 
        if (CGRectContainsPoint(touchableArea, point)){ 
         return subTextView; 
        } 
       }    
      }    
     } 
    }  
    return nil; 
}