活动端图片放大滑动查看-插件photoswipe的采取

NSLog(@”%@”,arr2);

 

6.

亚、html页面被待加上如下一些html代码

该段代码用于展示大图功能

<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
        <div class="pswp__bg"></div>
        <div class="pswp__scroll-wrap">
            <div class="pswp__container">
                <div class="pswp__item"></div>
                <div class="pswp__item"></div>
                <div class="pswp__item"></div>
            </div>
            <div class="pswp__ui pswp__ui--hidden">
                <div class="pswp__top-bar">
                    <div class="pswp__counter"></div>
                    <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
                    <!--<button class="pswp__button pswp__button&#45;&#45;share" title="Share"></button>-->
                    <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
                    <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
                    <div class="pswp__preloader">
                        <div class="pswp__preloader__icn">
                            <div class="pswp__preloader__cut">
                                <div class="pswp__preloader__donut"></div>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
                    <div class="pswp__share-tooltip"></div>
                </div>
                <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
                </button>
                <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
                </button>
                <div class="pswp__caption">
                    <div class="pswp__caption__center"></div>
                </div>
            </div>
        </div>
    </div>

停放图片有的html代码按照如下结构:

<div class="my-gallery" data-pswp-uid="1">
     <figure>
         <div class="img-dv"><a href="img/img1-big.jpg" data-size="1920x1080"><img src="img/img1.jpg"></a></div>
         <figcaption style="display:none;">在这里可增加图片描述</figcaption>
     </figure>
</div>

 

季、页面效果图

图片 1   图片 2  
图片 3

 

☞☞☞☞字典方法(关键字)☜☜☜☜

 

字符串比较是否等(判断字符串str1和字符串str3是否等于,返回布尔值)

老三、完整代码

以下是圆代码

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>photoswipe的使用</title>
    <link rel="stylesheet prefetch" href="css/photoswipe.css">
    <link rel="stylesheet prefetch" href="css/default-skin/default-skin.css">
    <style>
        * {margin: 0;padding: 0;}
        .clearfix::before, .clearfix::after {
            display: block;
            content: '';
            visibility: hidden;
            height: 100%;
            clear: both;
        }
        body {padding-top: 2%;}
        .my-gallery {width:96%;margin: 0 auto;}
        .my-gallery .img-dv {width:100%;margin-bottom: 1%;}
        .my-gallery .img-dv a {display:block;width:100%;text-align: center}
        .my-gallery .img-dv a img {width:100%;}
    </style>
</head>

<body>
    <!--如果有多个data-pswp-uid 它的值是不能重复的-->
    <div class="my-gallery" data-pswp-uid="1">
        <figure>
            <div class="img-dv"><a href="img/img1-big.jpg" data-size="1920x1080"><img src="img/img1.jpg"></a></div>
            <figcaption style="display:none;">在这里可增加图片描述</figcaption>
        </figure>
        <figure>
            <div class="img-dv"><a href="img/img2-big.jpg" data-size="1920x1080"><img src="img/img2.jpg"></a></div>
            <figcaption style="display:none;">在这里可增加图片描述2</figcaption>
        </figure>
        <figure>
            <div class="img-dv"><a href="img/img3-big.jpg" data-size="1920x1080"><img src="img/img3.jpg"></a></div>
            <figcaption style="display:none;">在这里可增加图片描述3</figcaption>
        </figure>
        <figure>
            <div class="img-dv"><a href="img/img4-big.jpg" data-size="1920x1080"><img src="img/img4.jpg"></a></div>
            <figcaption style="display:none;">在这里可增加图片描述4</figcaption>
        </figure>
        <figure>
            <div class="img-dv"><a href="img/img5-big.jpg" data-size="1920x1080"><img src="img/img5.jpg"></a></div>
            <figcaption style="display:none;">在这里可增加图片描述5在这里可增加图片描述5在这里可增加图片描述5</figcaption>
        </figure>
    </div>

    <div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
        <div class="pswp__bg"></div>
        <div class="pswp__scroll-wrap">
            <div class="pswp__container">
                <div class="pswp__item"></div>
                <div class="pswp__item"></div>
                <div class="pswp__item"></div>
            </div>
            <div class="pswp__ui pswp__ui--hidden">
                <div class="pswp__top-bar">
                    <div class="pswp__counter"></div>
                    <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
                    <!--<button class="pswp__button pswp__button&#45;&#45;share" title="Share"></button>-->
                    <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
                    <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
                    <div class="pswp__preloader">
                        <div class="pswp__preloader__icn">
                            <div class="pswp__preloader__cut">
                                <div class="pswp__preloader__donut"></div>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
                    <div class="pswp__share-tooltip"></div>
                </div>
                <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
                </button>
                <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
                </button>
                <div class="pswp__caption">
                    <div class="pswp__caption__center"></div>
                </div>
            </div>
        </div>
    </div>
</body>
<script src="js/photoswipe.js"></script>
<script src="js/photoswipe-ui-default.min.js"></script>
<script type="text/javascript">
    var initPhotoSwipeFromDOM = function(gallerySelector) {
        // 解析来自DOM元素幻灯片数据(URL,标题,大小...)
        var parseThumbnailElements = function(el) {
            var thumbElements = el.childNodes,
                numNodes = thumbElements.length,
                items = [],
                figureEl,
                linkEl,
                size,
                item,
                divEl;
            for(var i = 0; i < numNodes; i++) {
                figureEl = thumbElements[i]; // <figure> element
                // 仅包括元素节点
                if(figureEl.nodeType !== 1) {
                    continue;
                }
                divEl = figureEl.children[0];
                linkEl = divEl.children[0]; // <a> element
                size = linkEl.getAttribute('data-size').split('x');
                // 创建幻灯片对象
                item = {
                    src: linkEl.getAttribute('href'),
                    w: parseInt(size[0], 10),
                    h: parseInt(size[1], 10)
                };
                if(figureEl.children.length > 1) {
                    item.title = figureEl.children[1].innerHTML;
                }
                if(linkEl.children.length > 0) {
                    // <img> 缩略图节点, 检索缩略图网址
                    item.msrc = linkEl.children[0].getAttribute('src');
                }
                item.el = figureEl; // 保存链接元素 for getThumbBoundsFn
                items.push(item);
            }
            return items;
        };

        // 查找最近的父节点
        var closest = function closest(el, fn) {
            return el && ( fn(el) ? el : closest(el.parentNode, fn) );
        };

        // 当用户点击缩略图触发
        var onThumbnailsClick = function(e) {
            e = e || window.event;
            e.preventDefault ? e.preventDefault() : e.returnValue = false;
            var eTarget = e.target || e.srcElement;
            var clickedListItem = closest(eTarget, function(el) {
                return (el.tagName && el.tagName.toUpperCase() === 'FIGURE');
            });
            if(!clickedListItem) {
                return;
            }
            var clickedGallery = clickedListItem.parentNode,
                childNodes = clickedListItem.parentNode.childNodes,
                numChildNodes = childNodes.length,
                nodeIndex = 0,
                index;
            for (var i = 0; i < numChildNodes; i++) {
                if(childNodes[i].nodeType !== 1) {
                    continue;
                }
                if(childNodes[i] === clickedListItem) {
                    index = nodeIndex;
                    break;
                }
                nodeIndex++;
            }
            if(index >= 0) {
                openPhotoSwipe( index, clickedGallery );
            }
            return false;
        };

        var photoswipeParseHash = function() {
            var hash = window.location.hash.substring(1),
                params = {};
            if(hash.length < 5) {
                return params;
            }
            var vars = hash.split('&');
            for (var i = 0; i < vars.length; i++) {
                if(!vars[i]) {
                    continue;
                }
                var pair = vars[i].split('=');
                if(pair.length < 2) {
                    continue;
                }
                params[pair[0]] = pair[1];
            }
            if(params.gid) {
                params.gid = parseInt(params.gid, 10);
            }
            return params;
        };

        var openPhotoSwipe = function(index, galleryElement, disableAnimation, fromURL) {
            var pswpElement = document.querySelectorAll('.pswp')[0],
                gallery,
                options,
                items;
            items = parseThumbnailElements(galleryElement);
            // 这里可以定义参数
            options = {
                barsSize: {
                    top: 100,
                    bottom: 100
                },
                fullscreenEl : false,
                shareButtons: [
                    {id:'wechat', label:'分享微信', url:'#'},
                    {id:'weibo', label:'新浪微博', url:'#'},
                    {id:'download', label:'保存图片', url:'{{raw_image_url}}', download:true}
                ],
                galleryUID: galleryElement.getAttribute('data-pswp-uid'),
                getThumbBoundsFn: function(index) {
                    var thumbnail = items[index].el.getElementsByTagName('img')[0], // find thumbnail
                        pageYScroll = window.pageYOffset || document.documentElement.scrollTop,
                        rect = thumbnail.getBoundingClientRect();
                    return {x:rect.left, y:rect.top + pageYScroll, w:rect.width};
                }
            };
            if(fromURL) {
                if(options.galleryPIDs) {
                    for(var j = 0; j < items.length; j++) {
                        if(items[j].pid == index) {
                            options.index = j;
                            break;
                        }
                    }
                } else {
                    options.index = parseInt(index, 10) - 1;
                }
            } else {
                options.index = parseInt(index, 10);
            }
            if( isNaN(options.index) ) {
                return;
            }
            if(disableAnimation) {
                options.showAnimationDuration = 0;
            }
            gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);
            gallery.init();
        };

        var galleryElements = document.querySelectorAll( gallerySelector );
        for(var i = 0, l = galleryElements.length; i < l; i++) {
            galleryElements[i].setAttribute('data-pswp-uid', i+1);
            galleryElements[i].onclick = onThumbnailsClick;
        }
        var hashData = photoswipeParseHash();
        if(hashData.pid && hashData.gid) {
            openPhotoSwipe( hashData.pid ,  galleryElements[ hashData.gid - 1 ], true, true );
        }
    };

    initPhotoSwipeFromDOM('.my-gallery');
</script>
</html>

NSString * str1 = [NSString stringWithString:str2];

一样、需要引入的css和js文件、

  页面被需引入如下文件:photoswipe.css,default-skin.css,photoswipe.js,photoswipe-ui-default.min.js

  首先可以到它的官网或github网站上下载插件,就可找到需要的资源,官网地址:http://photoswipe.com;GitHub网址:https://github.com/dimsemenov/PhotoSwip

  图片 4

  图片 5

[ms2 replaceCharactersInRange:NSMakeRange(0, 3) withString:@”z”];

 

2.

近年当开项目的当儿,遇到一个需求,需要走端实现放大查看图片的职能,然后自己哪怕于网上搜寻了转材料,看到了photoswipe这个插件,后来小试牛刀了碰,确实挺好用的,它可以实现手势放大缩小查看图片,左右滑行切换图片及前后滑动关闭大图。现在略分享一下。

自打网上读取文件内容到字符串中

3.替换字符串(指定区间)

NSLog(@”%@”,ms2);

方法:

}else{

二.NSMutableString 可更换字符串

3.数组中追加数组(将array数组追加到木Array数组中)

 

char * p = “aa11bb22”;

字符串初始化

 

for (NSString * str3 in

 

NSString * value = dic[key1];

5.获第一只要素/最后一个元素:

[muArray addObjectsFromArray:array];

[muArray exchangeObjectAtIndex:i withObjectAtIndex:j];

[ms2 insertString:@”a” atIndex:1];

5.

 

[dic setDictionary:dic1];

字符串的摸

 

NSLog(@”%c”,c);

经过反复组的艺术 : NSMutableArray * muArray = [[NSMutableArray
alloc]initWithArray:array1];       NSLog(@”%@”,muArray);

10.替换字符串(在指定范围外)

1.创办数组 

NSLog(@”value = %@”,value);

]; i++) {

NSMutableString * ms1 = [[NSMutableString alloc]init];

NSArray * muArray = @[@”0″,@”12″,@”11″,@”6″,@”91″];

        

a.删除最后一个素

14.

2.长元素

}

8.判断当前目标属于哪个类?

3)转整型:int a = [str intValue];

c.删除指定的元素(删除数组muArray中的 0)

一.NSArray不可变数组

[muArray addObject:@”15″];

4.

 

事例:将字符串ms2由下标为0的4单因素删除

1.创建对象方法

效果:删除数组muArray下标0开始之5个元素中之 0.

NSUInteger n = [str3 length];//返回值是NSUInteger类型的

1.forin的方法

3.修改

二.NSMutableDictionary 可变换字典

4.替换数组中的元素(将muArray数组中产标4的素交替成 0)

NSLog(@”str1_1配符串是坐ads开头的”);

[muArray removeObject:@”0″ inRange:range];

f.删除数组中保有因素(删除数组muArray中所有的元素)

NSLog(@”%@ %@”,str1,str2);

4.去字符串

  NSLog(@”str1 > str3″);

将数组元素中为此空格的章程出口

NSString * str2 = [[NSString alloc]initWithFormat:@”abc”];

功用:将字符串重新安为新因素,覆盖原来的价值

[dic count];  返回值是:NSUInteger类型

 

2.统计数组成员个数:

char * p = [str3 UTF8String];

[muArray removeObjectsInArray:arr8];

if ([str1_1 hasPrefix:@”ads”]) {

NSLog(@”%@”

比较有限独字符串的轻重缓急

前缀功能:检查有字符串是否坐指定的字符串开始,采用hasPrefix方法

NSDictionary * dic =
@{@”key1”:@“value”,@”key2”:@“value2″,@”key3”:@“value3″,@”key4”:@“value”};

}

 

– if([str1 compare:str3] == NSOrderedAscending){//升序

判定数组是否带有有元素

(3)删除所有

[dic setObject:@”value5″ forkey:@”key5″];

NSLog(@”%@”,str1);

 

4.获得具有key/所有value

[ms2 setting :@“gen ahi bai bing”];

[ms2 appendString:@”g”];

   }    

[muArray replaceObjectAtIndex:4 withObject:@”0″];

2)转小写字母:str = [str lowercaseString];

}

3.通过key查找value 

 

11.

判定前缀和后缀

NSLog(@”%@”,ms2);

BOOL * boo = [arr containsObject:@”2222″];

13.

5.交换数组中之素(将muArray数组中产标0的素与下标4的因素进行交换)

NSLog(@”%@”,muArray);

(1)删除指定的key 

e.从一个数组中剔除

 

NSLog(@”%@”,ms2);

1.

[muArray exchangeObjectAtIndex:0 withObjectAtIndex:4];

}

NSString * last = [数组名 lastObject];

 

二.NSMutableArray 可变数组

for(NSString * key1 in dic){

NSLog(@”%@”,ms2);

目标方法: NSMutableArray * array = [[NSMutableArray
alloc]initWithObjects:@“1”,@“2”,@“3”,nil];

for (int i = 0 ; i<[array1 count

所有value:[dic allValues];

以c语言字符串转换成oc字符串

 

NSString * str = [[NSString alloc]init];

6.

b.删除指定下标(删除数组muArray的下标3之元素)

}

NSRange range = [str rangeOfString:@”aa”];

字符串的拆分

 

 

8.字符串拼接

9.

[str writeToFile:@”目标文件路径” atomically:YES
encoding:NSUTF8StringEncoding error:nil];

3.插入入字符串(指定位置插入元素)

8.修改数组(将数组array中的要素于数组muArray,原来的要素于埋)

4.

横流:通过key修改value的值前提字典里面要存在是key.

事例:在ms2许符串替换下标为0的3独要素交替为z元素

NSArray * array = @[@”key1″,@”key2″];

NSArray * arr8 = @[@”0″,@”12″,@”11″];

NSLog(@“%@”,ms2); 

形容副文件

[muArray setArray:array];

[dic allkeysForObject:@”Value2″];

6.字符串的长度

一.NSString 不可变字符串

NSLog(@”%@”,ms2);

}else if ([str1 compare:str3] == NSOrderedDescending){//降序

方:选择排序法,升序排序

拿oc字符串转化成为c字符串

[muArray removeAllObjects];

(从数组muArray数组中去arr8累组的价)

7.获取字符串单个字符(获取字符串str3面临首先独字符)

9.排序

 

1)转大写字母:str = [str uppercaseString];

类方法NSArray * arr = [NSArray
arrayWithObjects:@“11”,@“22”,@“33”,nil];

 

NSLog(@”%@”

 

NSString * str1_1 = [str stringByReplacingCharactersInRange:range
withString:@”努力”];

12.字符串转换

,str3);

NSLog(@”str1_1字符串不是为ads开头的”);

NSRange range = {0,6};

通过@的方法 : NSArray * array1 = @[@”11″,@”12″,@”13″,@”14″];

NSString * str = @”a,b,c,d,e,f”;

[muArray removeLastObject];

,array1[i]);

NSLog(@”%@”,str);

 

拿数组元素进行拼接

3.出口指定数组成员:

类方法:NSMutableArray * arr = [NSMutableArray
arrayWithObjects:@“11”,@“22”,@“33”,nil];

 

[dic removeObjectForkey:@”key”];

[ms2 deleteCharactersInRange:NSMakeRange(0, 4)];

[dic removeAllObject];

}else{// NSOrderedSame 相等

搜字符串str中率先涂鸦面世aa的序幕下标及其长度

NSLog(@”%@”,str1_1);

1.创办字符串

isKindOfClass方法

  NSLog(@”str1 = str3″);

5.查看value所对应之key

NSString * str =[str3 stringByAppendingString:str1];

NSDictionary * dic1 =
@{@”key1”:@“value”,@”key2”:@“value2″,@”key3”:@“value3″,@”key4”:@“value”};

NSArray * array = [str componentsSeparatedByString:@”,”];

1.创数组

NSLog(@”%@”,array);

NSMutableString * ms2 = [NSMutableString stringWithString:str];

NSLog(@”%@”,muArray);

   for (int j = i +1; j < [muArray count]; j++) {

☞☞☞☞字符串方法(关键字)☜☜☜☜

NSString * str1 = [array componentsJoinedByString:@” “];

对象[key] 如:dic[key1];

NSString * first  = [数组名 firstObject];

NSString * str3 = [[NSString alloc]initWithUTF8String:p];

NSArray * arr2 = [str2 componentsSeparatedByString:@” “];

7.

数组在指定位置多元素(在muArray数组中,下标为4的职插入20因素)

[dic setObject:@”qianfeng” forkey@”key1″];

;

2.查看键的个数  

(2)用新字典覆盖字典的值

NSLog(@”%d”,boo);

NSString *str2 = @”good good study day day up”;

 

 

for (int i = 0; i< [muArray count]-1; i++) {

[str1 isEqualToString:str3]

1.增加key和value

[dic removeObjectForkey:array];

NSArray * array1 = @[@”11″,@”12″,@”13″,@”14″]

3.

NSUInteger n = [array count];

 

 

NSLog(@”%lu %lu”,range.location,range.length);

☞☞☞☞数组方法(关键字)☜☜☜☜

array1) {

     if ([muArray[i]intValue] > [muArray[j] intValue]) {

char c = [str3 characterAtIndex:0];

}

用字符串进行拆分

4.高效遍历

NSRange range = {0,5};

[muArray insertObject:@”20″ atIndex:4];

(2)删除数组中之key

NSLog(@”%@”,str3);

15.

NSString * str = [NSString stringWithContentsOfURL:[NSURL
URLWithString:@”网址”] encoding:NSUTF8StringEncoding error:nil];

4)转布尔型:BOOL isOk = [str boolValue];

[muArray removeObjectAtIndex:3];

[muArray removeObject:@”0″];

 

5.重新设置字符串

所有key:[dic allkeys];

NSString * str = 数组名[下标];

 

 

事例:在ms2许符串中下标为1的职插入一个元素a

7.以反复组中去除

(后缀功能同理):hasSuffix方法

对象方法 NSArray * array = [[NSArray
alloc]initWithObjects:@“1”,@“2”,@“3”,nil];

2.for方法

 

NSLog(@”str1 = str3″);

      }

2.合龙接字符串

一.NSDictionary 不可变字典

9.数组元素的遍历

(1)通过key修改value的值

d.在指定范围外去指定元素

2.删除

 

在则赶回1,不存在返回0

 

成效:用指定的相间符将字符串分成数组

NSLog(@”%s”,p);