电影评分星级显示效果的实现

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实现电影评分的星级显示效果

核心代码：

- (void)viewDidLoad {    [super viewDidLoad];    self.view.backgroundColor = [UIColor grayColor];    //电影评分    float score = 6.8;  //十分制    //星星的图片    UIImage *yellowStarImage = [UIImage imageNamed:@"yellow"];    UIImage *grayStarImage = [UIImage imageNamed:@"gray"];    float num = score/10*5; //十分制转换为5星制度    //两个view的位置要相同，黄色星星宽度由num来决定    UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(100, 100, num*(yellowStarImage.size.width), yellowStarImage.size.height)];    UIView *view2 = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 5*(grayStarImage.size.width), grayStarImage.size.height)];    view1.backgroundColor = [UIColor colorWithPatternImage:yellowStarImage];    view2.backgroundColor = [UIColor colorWithPatternImage:grayStarImage];    //注意添加subView顺序，先添加灰色星星背景图，再添加黄色星星背景图    [self.view addSubview:view2];    [self.view addSubview:view1];    // Do any additional setup after loading the view, typically from a nib.}

效果图：

效果图

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