先看效果图哈
seebigpicture.gif
在.h文件中
#import <UIKit/UIKit.h>
@interface SsrSeeBigView : UIView
- (instancetype)initWithFrame:(CGRect)frame image:(UIImage *)Selectimage IndexString:(NSString *)IndexString;
@end
在.m文件中
#import "LYWseeBigView.h"
#import <UIImageView+WebCache.h>
/*** 屏幕宽 ***/
#define kScreenWidth ([UIScreen mainScreen].bounds.size.width)
/*** 屏幕高 ***/
#define kScreenHeight ([UIScreen mainScreen].bounds.size.height)
@interface LYWseeBigView ()
@property (nonatomic, assign) UIView *background;//图片放大
@property (nonatomic , strong) UIImageView *browseImgView;
@end
@implementation LYWseeBigView
- (instancetype)initWithFrame:(CGRect)frame image:(UIImage *)Selectimage IndexString:(NSString *)IndexString
{
if (self = [super initWithFrame:frame])
{
//创建一个黑色背景
//初始化一个用来当做背景的View。
UIView *bgView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)];
_background = bgView;
[bgView setBackgroundColor:[UIColor blackColor]];
[self addSubview:bgView];
//创建显示图像的视图
//初始化要显示的图片内容的imageView
UIImageView *browseImgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 20, kScreenWidth, kScreenHeight - 20)];
browseImgView.contentMode = UIViewContentModeScaleAspectFit;
self.browseImgView = browseImgView;
//要显示的图片，即要放大的图片
if (Selectimage) {
_browseImgView.image = Selectimage;
}
//如果传递的是url
if (IndexString) {
[_browseImgView sd_setImageWithURL:[NSURL URLWithString:IndexString] placeholderImage:nil];
}
[bgView addSubview:browseImgView];
browseImgView.userInteractionEnabled = YES;
//添加点击手势（即点击图片后退出全屏）
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(closeView)];
[browseImgView addGestureRecognizer:tapGesture];
[self shakeToShow:bgView];//放大过程中的动画
}
return self;
}
-(void)closeView
{
[self removeFromSuperview];
}
//放大过程中出现的缓慢动画
- (void) shakeToShow:(UIView*)aView
{
CAKeyframeAnimation* animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
animation.duration = 0.3;
NSMutableArray *values = [NSMutableArray array];
[values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 1.0)]];
[values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];
animation.values = values;
[aView.layer addAnimation:animation forKey:nil];
}
简单使用
传递图片
_seeBigImage = [[SsrSeeBigView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight) image:self.ImageOne.image IndexString:nil];
[self.view addSubview:_seeBigImage];
传递url
_seeBigImage = [[SsrSeeBigView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight) image:nil IndexString:self.dataSources[Index]];
[self.view addSubview:_seeBigImage];
控制器查看图片
https://gitee.com/lanyingwei/codes/ym0zeonwc62fjgrs5lxb129
