ios - 如何更改用户位置注释的接近度

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How to Increase the Radius of userLocation Annotation in Mapkit
                                
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                                3年前关闭。
            
                    
如何更改userLocation annotation生成的接近度。
我说的是userLocation annotation在其周围创建的褪色蓝色圆圈。如何更改半径？

最佳答案

看一下：https://github.com/TransitApp/SVPulsingAnnotationView

从库中添加以下文件：

SVAnnotation.h
SVAnnotation.m

SVPulsingAnnotationView.h
SVPulsingAnnotationView.m

进口：

#import "SVAnnotation.h"
#import "SVPulsingAnnotationView.h"

使用SVPulsingAnnotationView可以设置pulseScaleFactor属性以更改半径，当找到UserLocation时在viewForAnnotation方法中使用以下代码：

        static NSString *identifier = @"currentLocation";
        SVPulsingAnnotationView *pulsingView = (SVPulsingAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:identifier];

        if(pulsingView == nil) {
            pulsingView = [[SVPulsingAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
            pulsingView.annotationColor = [UIColor colorWithRed:0.678431 green:0 blue:0 alpha:1];
            pulsingView.pulseScaleFactor=7.0;//Change pulseScaleFactor as required
            pulsingView.canShowCallout = YES;
        }

        return pulsingView;