I need the same filled space around circle on the map as in Reminders app in iOS7. I think need to use the method applyFillPropertiesToContext:atZoomScale
or fillPath:inContext:
.
我需要地图上的圆圈周围填充空间与iOS7中的“提醒”应用程序相同。我认为需要使用方法applyFillPropertiesToContext:atZoomScale或fillPath:inContext:。
1 个解决方案
#1
7
I solved my problem:
我解决了我的问题:
- (void)drawMapRect:(MKMapRect)mapRect zoomScale:(MKZoomScale)zoomScale inContext:(CGContextRef)context
{
// Fill full map rect with some color.
CGRect rect = [self rectForMapRect:mapRect];
CGContextSaveGState(context);
CGContextAddRect(context, rect);
CGContextSetFillColorWithColor(context, [UIColor colorWithWhite:0.0 alpha:0.4f].CGColor);
CGContextFillRect(context, rect);
CGContextRestoreGState(context);
// Clip rounded hole.
CGContextSaveGState(context);
CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
CGContextSetBlendMode(context, kCGBlendModeClear);
CGContextFillEllipseInRect(context, [self rectForMapRect:[self.overlay boundingMapRect]]);
CGContextRestoreGState(context);
// Draw circle
[super drawMapRect:mapRect zoomScale:zoomScale inContext:context];
}
#1
7
I solved my problem:
我解决了我的问题:
- (void)drawMapRect:(MKMapRect)mapRect zoomScale:(MKZoomScale)zoomScale inContext:(CGContextRef)context
{
// Fill full map rect with some color.
CGRect rect = [self rectForMapRect:mapRect];
CGContextSaveGState(context);
CGContextAddRect(context, rect);
CGContextSetFillColorWithColor(context, [UIColor colorWithWhite:0.0 alpha:0.4f].CGColor);
CGContextFillRect(context, rect);
CGContextRestoreGState(context);
// Clip rounded hole.
CGContextSaveGState(context);
CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
CGContextSetBlendMode(context, kCGBlendModeClear);
CGContextFillEllipseInRect(context, [self rectForMapRect:[self.overlay boundingMapRect]]);
CGContextRestoreGState(context);
// Draw circle
[super drawMapRect:mapRect zoomScale:zoomScale inContext:context];
}