調出註釋的觀點是不可點擊的中心

Question

我想我所有的觀點是可點擊並不僅僅是leftCalloutAccessoryView或r ightCalloutAccessoryView，我也希望中心成爲可點擊以及

Answer 1

您可以使用，

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { 
    UITouch *touch = [touches anyObject]; 

    CGPoint touchPoint = [touch locationInView:calloutView]; 

     BOOL isPointInsideView = [calloutView pointInside:touchPoint withEvent:nil]; 
     if (isPointInsideView) 
     { 
      // place your action code. 
     } 

} 

，或者您可以使用，

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapCalloutAction:)]; 
    tapGestureRecognizer.delegate = self; 
    tapGestureRecognizer.numberOfTapsRequired = 1; 
    [calloutView addGestureRecognizer:tapGestureRecognizer]; 

-(void) tapCalloutAction:(id)sender 
{ 
    // do stuff 
} 

Answer 2

的想法是，你想使所有的「附屬視圖」可點擊沒有與實際標註的原自來水乾擾..這是我要做的事：

第一我創建和分配點擊手勢後，它已被選中，像這樣的註解視圖（我在這裏使用OBJ-C運行時對象協會看到this要點）：

// set up vars 
static NSString *const kExtraTapGestureRecognizer = @"extraGesture"; 
UIControl *currentAnnotationControl; 

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {  
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] 
            initWithTarget:self 
              action:@selector(handleAnnotationViewTap:)]; 
    tap.numberOfTapsRequired = 1; 
    [tap setInfo:kExtraTapGestureRecognizer]; 
    [view addGestureRecognizer:tap]; 

} 

處理水龍頭，我叫MKMapViewDelegate協議的mapView:annotationView:calloutAccessoryControlTapped:，這基本上意味着如果我認爲n變拍了拍附件觀點之間，它是彷彿剛剛拍了拍附件觀點之一：

- (void)handleAnnotationViewTap:(UITapGestureRecognizer *)gestureRecognizer { 
    MKAnnotationView *annotationView = (MKAnnotationView *)gestureRecognizer.view; 
    // currentAnnotationControl is just a reference to one of the 
    // accessory views of the annotation that has just been selected.. 
    // see comment below 
    [self mapView:self.mapView 
    annotationView:annotationView 
    calloutAccessoryControlTapped:currentAnnotationControl]; 
} 

返回annotationView的時候，我保存到像這樣的（左或右）accessoryViews的一個參考：

- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation 
{ 
    if ([annotation isKindOfClass:[Random class]]) 
    { 
     static NSString *annotationIdentifier = @"annotation"; 

     MKAnnotationView *annotationView = 
     (MKAnnotationView *) [self.mapView annotationIdentifier]; 
     if (annotationView == nil) 
     { 
      annotationView = [[MKAnnotationView alloc] 
           initWithAnnotation:annotation reuseIdentifier:RiderAnnotationIdentifier]; 
      annotationView.canShowCallout = YES; 

      UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom]; 
      leftButton.frame = CGRectMake(0, 0,21, 21); 
      [leftButton setImage:[UIImage imageNamed:@"smallInfo_rider_left.png"] forState:UIControlStateNormal]; 

      [leftButton addTarget:nil action:nil forControlEvents:UIControlEventTouchUpInside]; 
      annotationView.leftCalloutAccessoryView = leftButton; 

      // this is where i store a reference to one of the accessory views 
      currentAnnotationControl = leftButton; 

      return annotationView; 
     } 
     else 
     { 
      annotationView.annotation = annotation; 
     } 

     return annotationView; 

保持我們創建一個額外的點觸手勢一點，我們必須得到儘快擺脫它作爲附件視圖中的一個已經被挖，像這樣：

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control 
{ 
    // we remove the extra tap gesture so that it doesn't interfere 
    // with normal app flow in the future 
    for (UIGestureRecognizer *gesture in [view gestureRecognizers]) { 
     if ([[gesture info] isEqualToString:kExtraTapGestureRecognizer]) { 
      [gesture removeTarget:nil action:NULL]; 
     }    
    } 
    // more stuff