小編推薦的這篇文章介紹了iOS如何實現點擊圖片放大效果的教程，有興趣的同學趕快動手操作一下吧！

今天帶來的是圖片點擊放大效果,這種效果一般在微博,微信朋友圈中比較常見

當我點擊其中一張圖片時,就會進入詳情

具體實現如下

首先創建個 Controller(PhotoViewController)

// // PhotoViewController.h // 點擊圖片放大效果 // // Created by Amydom on 17/1/9. // Copyright © 2017年 Amydom. All rights reserved. //    #import <UIKit/UIKit.h>    @interface PhotoViewController : UIViewController    //保存圖片的數組 @property (nonatomic, strong)NSMutableArray *photoArr; //圖片 tag @property (nonatomic, assign)NSInteger imageTag;    @end // // PhotoViewController.m // 點擊圖片放大效果 // // Created by Amydom on 17/1/9. // Copyright © 2017年 Amydom. All rights reserved. //    #import "PhotoViewController.h"    @interface PhotoViewController ()    @end    @implementation PhotoViewController    - (void)viewDidLoad {   [super viewDidLoad];        UIScrollView *myScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 375, 667)];        myScrollView.backgroundColor = [UIColor blackColor];   myScrollView.pagingEnabled = YES;   myScrollView.bounces = NO;        [self.view addSubview:myScrollView];   //根據tag 來獲取當前點擊的圖片   myScrollView.contentOffset = CGPointMake(self.view.frame.size.width * self.imageTag, 10);        myScrollView.contentSize = CGSizeMake(self.view.frame.size.width * self.photoArr.count, 667);   //創建   for(inti = 0; i < self.photoArr.count; i++)   {     UIImageView *img = [[UIImageView alloc] initWithFrame:CGRectMake(self.view.frame.size.width * i + 10, 0, self.view.frame.size.width - 20, self.view.frame.size.height)];     NSString *imgName = self.photoArr[i];     img.image = [UIImage imageNamed:imgName];            [myScrollView addSubview:img];            //自適應圖片大小     img.contentMode = UIViewContentModeScaleAspectFit;          }        //輕拍跳出照片浏覽   UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction)];        [myScrollView addGestureRecognizer:tap];    }    - (void)tapAction {   [self dismissViewControllerAnimated:YES completion:^{                 }]; }    - (void)didReceiveMemoryWarning {   [super didReceiveMemoryWarning];   // Dispose of any resources that can be recreated. }    /* #pragma mark - Navigation    // In a storyboard-based application, you will often want to do a little preparation before navigation - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {   // Get the new view controller using [segue destinationViewController].   // Pass the selected object to the new view controller. } */    @end

然後在 ViewController 中創建四張小圖片,添加輕拍手勢

// // ViewController.m // 點擊圖片放大效果 // // Created by Amydom on 17/1/9. // Copyright © 2017年 Amydom. All rights reserved. //    #import "ViewController.h" #import "PhotoViewController.h"    @interface ViewController (){        NSMutableArray *array;      }    @end    @implementation ViewController    - (void)viewDidLoad {   [super viewDidLoad];   self.view.backgroundColor = [UIColor whiteColor];   array = [NSMutableArray arrayWithObjects:@"1.jpg", @"2.jpg",@"3.jpg",@"4.jpg", nil nil];   for(inti = 0; i < array.count; i++) {            UIImageView *img = [[UIImageView alloc] initWithFrame:CGRectMake(20 + 880 * i, 100, 70, 70)];     img.image = [UIImage imageNamed:[array objectAtIndex:i]];            img.userInteractionEnabled = YES;            //截掉邊框     img.clipsToBounds = YES;            img.tag = 1000 + i;            UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(TapAction:)];            [img addGestureRecognizer:tap];            [self.view addSubview:img];   }    }    - (void)TapAction:(UITapGestureRecognizer *)tap{        PhotoViewController *photoVC = [[PhotoViewController alloc] init];   photoVC.imageTag = tap.view.tag - 1000 ;//獲取當前被點擊圖片的 tag   photoVC.photoArr = array;   [photoVC setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];// 效果   [self presentModalViewController:photoVC animated:YES];      } - (void)didReceiveMemoryWarning {   [super didReceiveMemoryWarning];   // Dispose of any resources that can be recreated. }       @end

這樣就可以實現啦........當然這裡只是單純的實現功能,至於想要圖片循環什麼的還是需要根據需求自行添加..