我已将 Google maps sdk for ios 添加到我的 Iphone 应用程序中，如果单击的信息窗口弹出标题，我有一些自定义标记，我如何在此信息窗口中添加一个按钮，以便如果按下将转到新页面？现在我尝试使用这篇文章来解决这个问题Adding Click Event on InfoWindow/Marker in Google Maps SDK for native iOS/objective C 它没有给我错误但它不起作用。
这就是我想要的结果：http://www.flickr.com/photos/74719051@N05/6728157477/
【问题讨论】：
标签： ios objective-c button google-maps-markers google-maps-sdk-ios
您链接的问题的答案显示了使用 MapKit 的代码，因此它不适用于 iOS 版 Google Maps SDK。
有关如何使用适用于 iOS 的 Google Maps SDK 返回自定义视图，请参阅此问题：
Custom annotation view in Google Maps SDK
但是请注意，根据这个问题，看起来显示的内容可能是视图的视觉副本而不是实际视图，这可能会限制您可以与视图进行的交互：
Add buttons to view returned by markerInfoWindow delegate method
不过，使用didTapWindowOfMarker 应该可以简单地检测信息窗口上的点击并转到不同的页面。
请注意，Google 的问题跟踪器中有一个功能请求以添加对此的直接支持：
https://code.google.com/p/gmaps-api-issues/issues/detail?id=4961
【讨论】：
此代码完全符合您的要求。它的灵感来自 Saxon Druce 推荐的link 中的#9，但做得不同且更完整。它检测到点击添加到我的自定义信息窗口的按钮。我创建了一个带有 2 个假按钮的自定义 infoWindow（它们实际上可以被图像替换，因为它们无论如何都不会触发任何操作）并且我在 infoWindow 上添加了一个带有 2 个真实但透明的按钮的透明 UIView。这些按钮将触发操作。
最后，我使用了一些委托方法或 KVC，以便在 infoWindow 本身移动时移动覆盖的 UIView。
- (UIView *)mapView:(GMSMapView *)mapView markerInfoWindow:(GMSMarker *)marker {
[self.actionOverlayCalloutView removeFromSuperview];
UIView *calloutView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, infoWindowWidth, infoWindowHeight)];
float offset = anchorSize * M_SQRT2;
CGAffineTransform rotateBy45Degrees = CGAffineTransformMakeRotation(M_PI_4);
UIView *arrow = [[UIView alloc] initWithFrame:CGRectMake((infoWindowWidth - anchorSize)/2.0, infoWindowHeight - offset, anchorSize, anchorSize)];
arrow.transform = rotateBy45Degrees;
arrow.backgroundColor = [UIColor lightGrayColor];
[calloutView addSubview:arrow];
UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, infoWindowWidth, infoWindowHeight - offset/2)];
[contentView setBackgroundColor:[UIColor whiteColor]];
contentView.layer.cornerRadius = 5;
contentView.layer.masksToBounds = YES;
contentView.layer.borderColor = [UIColor lightGrayColor].CGColor;
contentView.layer.borderWidth = 1.0f;
self.actionOverlayCalloutView =
[NSKeyedUnarchiver unarchiveObjectWithData:[NSKeyedArchiver archivedDataWithRootObject:contentView]]; //hack to copy a view...
self.actionOverlayCalloutView.backgroundColor = [UIColor lightGrayColorWithAlpha:0.5];
self.actionOverlayCalloutView.layer.cornerRadius = 5;
NSMutableArray *falseButtons = [NSMutableArray array];
NSMutableArray *actionButtons = [NSMutableArray array];
PointMapItem *pointAnnotation = marker.userData;
if ([pointAnnotation canPerformSend]) {
UIButton *button = [[UIButton alloc] init];
[button setImage:[UIImage imageNamed:@"imageButton1.png"] forState:UIControlStateNormal];
[falseButtons addObject:button];
UIButton *activableButton = [[UIButton alloc] init];
[activableButton addTarget:self action:@selector(onButton1Clicked) forControlEvents:UIControlEventTouchUpInside];
[actionButtons addObject:activableButton];
}
if ([pointAnnotation canPerformShowDetails]) {
UIButton *button = [[UIButton alloc] init];
[button setImage:[UIImage imageNamed:@"imageButton1.png"] forState:UIControlStateNormal];
[falseButtons addObject:button];
UIButton *activableButton = [[UIButton alloc] init];
[activableButton addTarget:self action:@selector(onButton2Clicked) forControlEvents:UIControlEventTouchUpInside];
[actionButtons addObject:activableButton];
}
int buttonWidth = contentView.frame.size.width / [falseButtons count];
int currentOffset = 0;
for (int i=0; i<falseButtons.count; i++) {
UIButton *falseButton = [falseButtons objectAtIndex:i];
UIButton *activableButton = [actionButtons objectAtIndex:i];
[falseButton setFrame:CGRectMake(currentOffset, 0, buttonWidth, contentView.frame.size.height)];
currentOffset += buttonWidth;
activableButton.frame = falseButton.frame;
[activableButton setTitle:@"" forState:UIControlStateNormal];
[self.actionOverlayCalloutView addSubview:activableButton];
[contentView addSubview:falseButton];
}
[calloutView addSubview:contentView];
CLLocationCoordinate2D anchor = [self.mapView.selectedMarker position];
CGPoint point = [self.mapView.projection pointForCoordinate:anchor];
point.y -= self.mapView.selectedMarker.icon.size.height + offset/2 + (infoWindowHeight - offset/2)/2;
self.actionOverlayCalloutView.center = point;
[self.mapView addSubview:self.actionOverlayCalloutView];
return calloutView;
}
- (void)mapView:(GMSMapView *)pMapView didChangeCameraPosition:(GMSCameraPosition *)position {
if (pMapView.selectedMarker != nil && self.actionOverlayCalloutView.superview) {
CLLocationCoordinate2D anchor = [self.mapView.selectedMarker position];
CGPoint point = [self.mapView.projection pointForCoordinate:anchor];
float offset = anchorSize * M_SQRT2;
point.y -= self.mapView.selectedMarker.icon.size.height + offset/2 + (infoWindowHeight - offset/2)/2;
self.actionOverlayCalloutView.center = point;
} else {
[self.actionOverlayCalloutView removeFromSuperview];
}
}
- (void)mapView:(GMSMapView *)mapView didTapAtCoordinate:(CLLocationCoordinate2D)coordinate {
[self.actionOverlayCalloutView removeFromSuperview];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if ([keyPath isEqualToString:@"mapView.selectedMarker"]) {
if (!self.mapView.selectedMarker) {
[self.actionOverlayCalloutView removeFromSuperview];
}
}
}
- (void)onButton2Clicked {
//your code
self.mapView.selectedMarker = nil;
}
- (void)onButton1Clicked {
// your code;
self.mapView.selectedMarker = nil;
}
【讨论】：
【讨论】：
1) 创建一个要在 infoWindow 中显示的子视图。 2)设置subview的frame等于infoWindow view的frame。
subView = [[[NSBundle mainBundle] loadNibNamed:@"viewName" owner:self options:nil] objectAtIndex:0];
[subView setFrame:infoview.frame];
[self.mapview addSubview:subView];
【讨论】：