ios小技巧:UIImage图片设置圆角，色边框，UILabel垂直显示

记得加入框架

#import <QuartzCore/QuartzCore.h>

 

imgView.image = [UIImage imageNamed:@"defaultHead.png"];

   /*
    设置头像圆角，并加上灰色边框
    */
   imgView.layer.masksToBounds=YES; 
   imgView.layer.cornerRadius=10.0; 
   imgView.layer.borderWidth=1.0;
   imgView.layer.borderColor=[[UIColor grayColor] CGColor];

nameLabel_ = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 12, 90)];

   nameLabel_.numberOfLines=0;//多行显示
   [nameLabel_ sizeToFit];//顶端垂直

 

图片阴影效果的实现
UIImageView*pageContenterImageView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"onePageApple.png"]];
//添加边框
CALayer*layer = [pageContenterImageViewlayer];
    layer.borderColor= [[UIColor whiteColor]CGColor];
    layer.borderWidth=0.0f;
//添加四个边阴影
    pageContenterImageView.layer.shadowColor= [UIColor blackColor].CGColor;
    pageContenterImageView.layer.shadowOffset=CGSizeMake(0,0);
    pageContenterImageView.layer.shadowOpacity=0.5; 
    pageContenterImageView.layer.shadowRadius=5.0;
//添加两个边阴影
//pageContenterImageView.layer.shadowColor = [UIColor blackColor].CGColor;
//    pageContenterImageView.layer.shadowOffset = CGSizeMake(2, 2);
//    pageContenterImageView.layer.shadowOpacity = 0.5; 
//    pageContenterImageView.layer.shadowRadius = 2.0;
//-------------
阴影渲染会严重消耗内存 ,导致程序咔叽.
/*阴影效果*/
//添加边框
CALayer*layer = [self.pageContenter layer];
layer.borderColor= [[UIColorwhiteColor]CGColor];
layer.borderWidth=0.0f;
//添加四个边阴影
self.pageContenter.layer.shadowColor= [UIColorblackColor].CGColor;//阴影颜色
self.pageContenter.layer.shadowOffset=CGSizeMake(0,0);//阴影偏移
self.pageContenter.layer.shadowOpacity=0.5;//阴影不透明度
self.pageContenter.layer.shadowRadius=5.0;//阴影半径
//添加两个边阴影
//self.pageContenter.layer.shadowColor = [UIColor blackColor].CGColor;
//self.pageContenter.layer.shadowOffset = CGSizeMake(2, 2);
//self.pageContenter.layer.shadowOpacity = 0.5; 
//self.pageContenter.layer.shadowRadius = 2.0;