iOS-- UIimageView详解

原文地址: http://blog.csdn.net/djxiaoyu_haha/article/details/40348377

//    (1)创建

    UIImageView *imageView = [[UIImageView alloc ] init];

    UIImage *image = [UIImage imageNamed:@"image_photo"];

    imageView.image = image;

    //    (2)设置圆角

    imageView.layer.masksToBounds = YES;

    imageView.layer.cornerRadius = ;

    //    (3)设置边框颜色和大小

    imageView.layer.borderColor = [UIColor orangeColor].CGColor;

    imageView.layer.borderWidth = ;

    //    (4)contentMode属性：当图片小于imageView的大小处理图片显示

    //    这个属性是用来设置图片的显示方式，如居中、居右，是否缩放等，有以下几个常量可供设定：

    //

    //    UIViewContentModeScaleToFill ：填充整个UIViewContentModeScaleAspectFit UIViewContentModeScaleAspectFill UIViewContentModeRedraw UIViewContentModeCenter UIViewContentModeTop UIViewContentModeBottom UIViewContentModeLeft UIViewContentModeRight UIViewContentModeTopLeft UIViewContentModeTopRight UIViewContentModeBottomLeft UIViewContentModeBottomRight

    imageView.contentMode = UIViewContentModeScaleAspectFit;

    //(5)播放一系列图片

    UIImage *image1 = [UIImage imageNamed:@"homeNaviLeftBtn"];

    UIImage *image2 = [UIImage imageNamed:@"homeNaviRightBtn"];

    UIImage *image3 = [UIImage imageNamed:@"image_photo"];

    NSArray *imagesArray = @[image1,image2,image3];

    imageView.animationImages = imagesArray;

    // 设定所有的图片在多少秒内播放完毕

    imageView.animationDuration = [imagesArray count];

    // 不重复播放多少遍，0表示无数遍

    imageView.animationRepeatCount = ;

    // 开始播放

    [imageView startAnimating];

     //(6)为图片添加单击事件：一定要先将userInteractionEnabled置为YES，这样才能响应单击事件

    imageView.userInteractionEnabled = YES;

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizeralloc] initWithTarget:self action:@selector(tapImageView:)];

    [imageView addGestureRecognizer:singleTap];

    //(7)其他设置

//    imageView.hidden = YES或者NO;    // 隐藏或者显示图片

    imageView.alpha =0.5;    // 设置透明度

    // 设置高亮时显示的图片

    //imageView.highlightedImage = (UIImage *)hightlightedImage;

     //imageView.image = (UIImage *)image; // 设置正常显示的图片

    //设置位置 1)修改center ImageView的中间点2)修改frame

    imageView.frame = CGRectMake(, , , );

//    imageView.center = CGPointMake(0, 0);