iOS界面编程－UIImageView

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一、UIImageView介绍

一个UIImageView提供基于view的容器，用来显示单个图片或者可以用来展示一系列图片的动画。对于动画图片，UIImageView类提供动画周期和动画频率的控制方法。你可以自由的开始和停止动画。

二、相关方法

1、初始化对象

- (instancetype nonnull)initWithImage:(UIImage * nullable)image

- (instancetype nonnull)initWithImage:(UIImage * nullable)image highlightedImage:(UIImage * nullable)highlightedImage

2、image data

@property(nonatomic, strong) UIImage *image

@property(nonatomic,strong) UIImage *highlightedImage

@property(nonatomic,copy) NSArray <UIImage *> *animationImages

@property(nonatomic,copy) NSArray <UIImage *> *highlightedAnimationImages

@property(nonatomic)NSTimeInterval animationDuration

@property(nonatomic)NSInteger animationRepeatCount

- (void)startAnimating

- (void)stopAnimating

- (BOOL)isAnimating

@property(nonatomic,getter=isUserInteractionEnabled)BOOL userInteractionEnabled

@property(nonatomic,getter=isHighlighted)BOOL highlighted

@property(nonatomic,strong) UIColor * __null_unspecifiedtintColor

三相关列子

1、创建一个显示单个图片的UIInageView。

    UIImageView *imageView    = [[UIImageView alloc] initWithFrame:CGRectMake(10,20,self.view.frame.size.width - 20, 100)];    imageView.image = [UIImage imageNamed:@"bgnormol.png"];    imageView.backgroundColor = [UIColor whiteColor];//<span style="font-family: Arial, Helvetica, sans-serif;">UIImageView 背景颜色</span>    imageView.highlightedImage = [UIImage imageNamed:@"bghighlighted.png"];//高亮下的图片    imageView.highlighted = YES;// 设置高亮显示    imageView.contentMode = UIViewContentModeScaleAspectFit;//设置分辨率匹配    [self.view addSubview:imageView];

2、创建显示一系列动画的UIImageView

    UIImageView *myImage = [[UIImageView alloc]initWithFrame:CGRectMake(10, 280, self.view.bounds.size.width-20, 100)]; //新建一个UIImageView    myImage.backgroundColor = [UIColor whiteColor];//背景颜色    UIImage *ig1= [UIImage imageNamed:@"bg1"];    UIImage *ig2= [UIImage imageNamed:@"bg2"];    UIImage *ig3= [UIImage imageNamed:@"bg3"];    UIImage *ig4= [UIImage imageNamed:@"bg4"];       myImage.animationImages = @[ig1,ig2,ig3,ig4];//设置其动画图片    myImage.animationDuration = 3;//动画事件    myImage.contentMode =UIViewContentModeScaleAspectFit;//设置内容模式，伸缩之类的操作    [myImage startAnimating];//设置开始动画    [self.view addSubview:myImage];

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