向UIImageView添加反射的最有效方法是什么

本文介绍了向UIImageView添加反射的最有效方法是什么的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我只想在UIImageVies下以最容易管理的方式进行反思。

I just want the easiest way to make a reflection under a UIImageVies that is easily managable.

推荐答案

正如Phil所说，你可以拥有一个反射的UIImageView实例：

As Phil says, you can have a "reflected" UIImageView instance:

@interface ReflectedImageView : UIView { @private UIImageView *_imageView; UIImageView *_imageReflectionView; } @property (nonatomic, retain) UIImage *image; @end

然后，在你的实现中，这样的事情

And then, in your implementation, something like this

@implementation ReflectedImageView @dynamic image; - (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { self.backgroundColor = [UIColor clearColor]; // This should be the size of your image: CGRect rect = CGRectMake(0.0, 0.0, 320.0, 290.0); _imageReflectionView = [[UIImageView alloc] initWithFrame:rect]; _imageReflectionView.contentMode = UIViewContentModeScaleAspectFit; _imageReflectionView.alpha = 0.4; _imageReflectionView.transform = CGAffineTransformMake(1, 0, 0, -1, 0, 290.0); [self addSubview:_imageReflectionView]; _imageView = [[UIImageView alloc] initWithFrame:rect]; _imageView.contentMode = UIViewContentModeScaleAspectFit; [self addSubview:_imageView]; } return self; } - (void)setImage:(UIImage *)newImage { _imageView.image = newImage; _imageReflectionView.image = newImage; } - (UIImage *)image { return _imageView.image; } - (void)dealloc { [_imageView release]; [_imageReflectionView release]; [super dealloc]; } @end