ios 设置阴影

-(instancetype)initWithFrame:(CGRect)frame{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = colorStr(@"ffffff");
        //v.layer.masksToBounds=YES;这行去掉
        self.layer.cornerRadius = 10;
        self.layer.shadowColor = colorStr(@"#0B234D").CGColor;//阴影颜色
        self.layer.shadowOffset = CGSizeMake(0, 0);//偏移距离
        self.layer.shadowOpacity = 0.5;//不透明度
        self.layer.shadowRadius = 5;//半径
        
    }
    return self;
}