#import "RatingView.h"
#define kRatingScale 10
@implementation RatingView
{
UIView *_grayStarView,*_yellowStarView;
}
// 代码创建
- (id)initWithFrame:(CGRect)frame {
if (self = [super initWithFrame:frame]) {
self.backgroundColor = [UIColor clearColor];
[self creatKits];//加载子控件
}
return self;
}
//通过xib文件加载
- (void)awakeFromNib {
[super awakeFromNib];
self.backgroundColor = [UIColor clearColor];
[self creatKits];
}
// 通过storyBoard创建
- (id)initWithCoder:(NSCoder *)aDecoder {
if (self = [super initWithCoder:aDecoder]) {
self.backgroundColor = [UIColor clearColor];
[self creatKits];
}
return self;
}
// 加载子视图
- (void)creatKits {
// 获取加载的星星图片，需要的时图片的饿size属性
UIImage *starImage = [UIImage imageNamed:@"gray"];
CGFloat width = starImage.size.width;
CGFloat height = starImage.size.height;
// 初始化星星视图 宽为星星图片的宽的5倍
_grayStarView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width*5, height)];
_grayStarView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"gray"]];
[self addSubview:_grayStarView];
_yellowStarView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, width*5, height)];
_yellowStarView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"yellow"]];
[self addSubview:_yellowStarView];
// 计算星星视图的形变比例 使得星星视图的大小与评分视图一致
CGFloat scale1 = self.frame.size.width/(width *5);
CGFloat scale2 = self.frame.size.height/height;
_grayStarView.transform = CGAffineTransformMakeScale(scale1, scale2);
_yellowStarView.transform = CGAffineTransformMakeScale(scale1, scale2);
// 重置星星视图的坐标
CGRect grayStarFrame = _grayStarView.frame;
grayStarFrame.origin = CGPointMake(0, 0);
_grayStarView.frame = grayStarFrame;
_yellowStarView.frame = grayStarFrame;
}
- (void)setRating:(CGFloat)rating {
_rating = rating;
CGRect rect = self.bounds;
rect.size.width = rect.size.width*(rating/kRatingScale);
_yellowStarView.frame = rect;
}