的MKMapView定製callOutView，支持自動佈局的iOS 6與iOS7

HEJ夥計們，iOS 6中，如果我使用的標註視圖自動佈局下一個的MKMapView的MKMapView定製callOutView，支持自動佈局的iOS 6與iOS7

我的應用程序崩潰。使用iOS 7，這可以正常工作。

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view { 
CustomMapAnnotation *annotation = (CustomMapAnnotation *)view.annotation; 

if([annotation isKindOfClass:[CustomMapAnnotation class]]) { 
    CustomMapCalloutView *calloutView = [CustomMapCalloutView new]; 
    calloutView.translatesAutoresizingMaskIntoConstraints = NO; 

    calloutView.titleLabel.text = annotation.titleText; 
    calloutView.subTitleLabel.text = annotation.subTitleText; 
    calloutView.distanceTextLabel.text = annotation.distanceText; 

    [view addSubview:calloutView]; 

    NSDictionary *viewsDictionary = @{@"callOutView": calloutView}; 
    NSArray *hConstraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[callOutView(150)]" options:0 metrics:nil views:viewsDictionary]; 
    NSArray *vConstraints = [NSLayoutConstraint constraintsWithVisualFormat:@"V:[callOutView(50)]" options:0 metrics:nil views:viewsDictionary]; 

    NSLayoutConstraint *xConstraint = [NSLayoutConstraint constraintWithItem:calloutView attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:view attribute:NSLayoutAttributeCenterX multiplier:1.0 constant:0.0]; 
    NSLayoutConstraint *yConstraint = [NSLayoutConstraint constraintWithItem:calloutView attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:view attribute:NSLayoutAttributeTop multiplier:1.0 constant:0.0]; 

    [view addConstraint:xConstraint]; 
    [view addConstraint:yConstraint]; 

    [view addConstraints:hConstraints]; 
    [view addConstraints:vConstraints]; 
}}

控制檯顯示以下錯誤：

* Assertion failure in -[MKAnnotationView layoutSublayersOfLayer:], /SourceCache/UIKit_Sim/UIKit-2380.17/UIView.m:5776 2013-10-27 13:39:18.519 PartySmarty[9825:907] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Auto Layout still required after executing -layoutSubviews. MKAnnotationView's implementation of -layoutSubviews needs to call super.'

有人可以給我一個提示問題出在哪裏？ CustomCalloutView也適用於自動佈局，我不會覆蓋其中的layoutSubviews。

來源

2013-10-27 matzino

http://stackoverflow.com/questions/14591366/subclassing-mkannotationview-with-use-of-auto-layout沒有幫助我，我不想切換回框架模型:( – matzino

This SO Answer指向正確的方向。我在MKAnnotationView上創建一個類別，重寫layoutSubviews方法並調用super方法。

這也適用於iOS 7

來源

2013-10-27 21:28:16 matzino

的MKMapView定製callOutView，支持自動佈局的iOS 6與iOS7

回答

相關問題