iOS 浏览照片NQXImageBrowswe

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@interface NQXImageBrowswe : UITableView

/**

 *  @brief  浏览头像

 *

 *  @param  oldImageView    头像所在的imageView

 */

+(void)showImage:(UIImageView*)avatarImageView;

@end

#import "NQXImageBrowswe.h"

static CGRect oldframe;

@implementation NQXImageBrowswe

+(void)showImage:(UIImageView *)avatarImageView{

    UIImage *image=avatarImageView.image;

    UIWindow *window=[UIApplication sharedApplication].keyWindow;

    UIView *backgroundView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)];

    oldframe=[avatarImageView convertRect:avatarImageView.bounds toView:window];

    backgroundView.backgroundColor=[UIColor blackColor];

    backgroundView.alpha=0;

    UIImageView *imageView=[[UIImageView alloc]initWithFrame:oldframe];

    imageView.image=image;

    imageView.tag=1;

    [backgroundView addSubview:imageView];

    [window addSubview:backgroundView];

    UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(hideImage:)];

    [backgroundView addGestureRecognizer: tap];

    [UIView animateWithDuration:0.3 animations:^{

        imageView.frame=CGRectMake(0,([UIScreen mainScreen].bounds.size.height-image.size.height*[UIScreen mainScreen].bounds.size.width/image.size.width)/2, [UIScreen mainScreen].bounds.size.width, image.size.height*[UIScreen mainScreen].bounds.size.width/image.size.width);

        backgroundView.alpha=1;

    } completion:^(BOOL finished) {

    }];

}

+(void)hideImage:(UITapGestureRecognizer*)tap{

    UIView *backgroundView=tap.view;

    UIImageView *imageView=(UIImageView*)[tap.view viewWithTag:1];

    [UIView animateWithDuration:0.3 animations:^{

        imageView.frame=oldframe;

        backgroundView.alpha=0;

    } completion:^(BOOL finished) {

        [backgroundView removeFromSuperview];

    }];

}

@end

iOS 浏览照片NQXImageBrowswe

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原文地址：http://www.cnblogs.com/Neil-0315/p/5251154.html