图像视图用于显示单个图像或动画序列的图像。
重要的属性
- (id)initWithImage:(UIImage *)image
- (id)initWithImage:(UIImage *)image highlightedImage: (UIImage *)highlightedImage
- (void)startAnimating
- (void)stopAnimating
-(void)addImageView{ UIImageView *imgview = [[UIImageView alloc] initWithFrame:CGRectMake(10, 10, 300, 400)]; [imgview setImage:[UIImage imageNamed:@"AppleUSA1.jpg"]]; [imgview setContentMode:UIViewContentModeScaleAspectFit]; [self.view addSubview:imgview]; }
这种方法解释了如何对imageView 中的图像进行动画处理
-(void)addImageViewWithAnimation{ UIImageView *imgview = [[UIImageView alloc] initWithFrame:CGRectMake(10, 10, 300, 400)]; // set an animation imgview.animationImages = [NSArray arrayWithObjects: [UIImage imageNamed:@"AppleUSA1.jpg"], [UIImage imageNamed:@"AppleUSA2.jpg"], nil]; imgview.animationDuration = 4.0; imgview.contentMode = UIViewContentModeCenter; [imgview startAnimating]; [self.view addSubview:imgview]; }
注意: 我们必须添加命名为"AppleUSA1.jpg"和"AppleUSA2.jpg"到我们的项目,可以通过将图像拖到我们导航区域,其中列出了我们的项目文件所做的图像。
在 ViewController.m 中更新 viewDidLoad,如下所示
(void)viewDidLoad { [super viewDidLoad]; [self addImageView]; }