Repo created

iphone/Maps/Classes/CircleView.m

@@ -0,0 +1,80 @@
+#import <UIKit/UIKit.h>
+#import "CircleView.h"
+#import <QuartzCore/QuartzCore.h>
+
+@interface CircleView()
+
+@property(nonatomic) UIColor *circleColor;
+@property(nonatomic) UIImage *image;
+
+@end
+
+@implementation CircleView
+
+- (id)initWithFrame:(CGRect)frame andColor:(UIColor *)color {
+  return [self initWithFrame:frame andColor:color andImageName:nil];
+}
+
+- (id)initWithFrame:(CGRect)frame andColor:(UIColor *)color andImageName:(nullable NSString *)imageName {
+  self = [super initWithFrame:frame];
+  if (self)
+  {
+    _circleColor = color;
+    if (imageName)
+      _image = [UIImage imageNamed:imageName];
+    self.opaque = NO;
+  }
+  return self;
+}
+
+- (void)drawRect:(CGRect)rect {
+  CGContextRef ctx = UIGraphicsGetCurrentContext();
+  CGContextAddEllipseInRect(ctx, rect);
+  CGContextSetFillColor(ctx, CGColorGetComponents(self.circleColor.CGColor));
+  CGContextFillPath(ctx);
+
+  if (self.image)
+    [self.image drawInRect:CGRectMake(3, 3, rect.size.width - 6, rect.size.height - 6)];
+}
+
++ (UIImage *)createCircleImageWithFrameSize:(CGFloat)frameSize
+                                andDiameter:(CGFloat)diameter
+                                   andColor:(UIColor *)color
+                               andImageName:(nullable NSString *)imageName {
+  UIView *circleView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, frameSize, frameSize)];
+  circleView.backgroundColor = UIColor.clearColor;
+  CircleView *circle = [[self alloc] initWithFrame:CGRectMake(0.5, 0.5, diameter - 1, diameter - 1)
+                                          andColor:color
+                                      andImageName:imageName];
+  circle.center = circleView.center;
+  [circleView addSubview:circle];
+  return  [self imageWithView:circleView];
+}
+
++ (UIImage *)createCircleImageWithFrameSize:(CGFloat)frameSize
+                                andDiameter:(CGFloat)diameter
+                                   andColor:(UIColor *)color {
+  return [self createCircleImageWithFrameSize:frameSize andDiameter:diameter andColor:color andImageName:nil];
+}
+
++ (UIImage *)createCircleImageWithDiameter:(CGFloat)diameter andColor:(UIColor *)color {
+  return [self createCircleImageWithFrameSize:diameter andDiameter:diameter andColor:color andImageName:nil];
+}
+
++ (UIImage *)createCircleImageWithDiameter:(CGFloat)diameter
+                                  andColor:(UIColor *)color
+                              andImageName:(NSString *)imageName {
+  return [self createCircleImageWithFrameSize:diameter andDiameter:diameter andColor:color andImageName:imageName];
+}
+
++ (UIImage *)imageWithView:(UIView *)view {
+  UIGraphicsImageRenderer *renderer = [[UIGraphicsImageRenderer alloc] initWithSize:view.bounds.size];
+
+  UIImage *image = [renderer imageWithActions:^(UIGraphicsImageRendererContext *rendererContext) {
+    [view.layer renderInContext:rendererContext.CGContext];
+  }];
+
+  return image;
+}
+
+@end