摘要：
MKMapView Class Reference原文地址http://developer.apple.com/library/ios/#documentation/MapKit/Reference/MKMapView_Class/MKMapView/MKMapView.htmlAn MKMapView object provides an embeddable map interface, similar to the one provided by the Maps application. You use this class as-is to display map informati 阅读全文
摘要：
UIGraphicsGetCurrentContext() 获得上下文CGContextSetRGBStrokeColor 画线颜色CGContextSetStrokeColorWithColor CGContextSetRGBFillColor 填充颜色CGContextSetLineWidth 画线宽度CGContextMoveToPoint 移动到某点CGContextAddLineToPoint 画线到某点CGContextAddRect 在所给范围内画方形CGContextStrokeRect = CGContextAddRect ... 阅读全文