模仿淘宝评价星星点击效果

淘宝评价星星点击效果"/>

模仿淘宝评价星星点击效果

创建星星按钮

 for (int i = 0 ; i < 5; i ++) {
        UIButton *btn = [[UIButton alloc]initWithFrame:CGRectMake(i * 30 + 100 + (i - 1) * 10, 100, 30, 30)];
        [btn setImage:[UIImage imageNamed:@"收 藏 (1) 拷贝 4"] forState:UIControlStateNormal];
        [btn setImage:[UIImage imageNamed:@"收 藏 (1)"] forState:UIControlStateSelected];
        btn.tag = i;
        [self.view addSubview:btn];
        [btn addTarget:self action:@selector(didselectedBtn:) forControlEvents:UIControlEventTouchUpInside];
    }
    
    _label = [[UILabel alloc]initWithFrame:CGRectMake(300, 105, 100, 20)];      星星后评价
    [self.view addSubview:self.label];

点击按钮触发方法

- (void)didselectedBtn:(UIButton *)sender{
    
    int k = 0;
    
    for (UIView *obj in self.view.subviews) {
        if([obj isKindOfClass:[UIButton class]]){
            UIButton *btn = (UIButton *)obj;
            for (int i = 0 ; i <= sender.tag ; i++) {
                
                k++;
                if(btn.tag <= i){
                    btn.selected = YES;
                }else{
                    btn.selected = NO;
                }
            }
            
            switch (k) {
                case 5:
                    self.label.text = @"非常差";
                    break;
                case 10:
                    self.label.text = @"差";
                    break;
                case 15:
                    self.label.text = @"一般";
                    break;
                case 20:
                    self.label.text = @"好";
                    break;
                case 25:
                    self.label.text = @"非常好";
                    break;
                    
                default:
                    break;
            }
            
        }
    }
}