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  3. Framework7 - 自动完成( Autocomplete)

Framework7 - 自动完成( Autocomplete)

描述 (Description)

自动填充是Framework7的移动友好和触摸优化组件，可以是下拉列表或独立方式。 您可以使用JavaScript方法创建和初始化自动完成实例 - 

myApp.autocomplete(parameters)

其中parameters是用于初始化自动完成实例的必需对象。

自动填充参数

下表列出了Framework7中可用的自动填充参数 -

S.No 参数和描述 类型 默认
1

openIn

它定义了如何打开自动填充功能，可以用作下拉列表，弹出窗口或页面。

stringpage
2

source

它使用自动完成实例，搜索查询和渲染函数来传递匹配的项目与数组。

function (autocomplete, query, render)-
3

valueProperty

它指定匹配项对象的键的项值。

stringid
4

limit

它会在每个查询的自动填充中显示有限数量的项目。

number-
5

preloader

预加载器可用于通过将其设置为true来指定自动完成布局。

booleanfalse
6

preloaderColor

它指定预加载器颜色。 默认情况下，颜色为“黑色”。

string-
7

value

使用默认选定值定义数组。

array-
8

textProperty

它指定匹配项对象的键的项值，可用作显示选项的标题。

stringtext

独立自动完成参数

下表列出了Framework7中可用的独立自动填充参数 -

S.No 参数和描述 类型 默认
1

opener

它是字符串或HTML元素参数，它将打开独立的自动完成页面。

字符串或HTMLElement -
2

popupCloseText

它用于关闭自动完成弹出窗口。

string'Close'
3

backText

当自动填充作为页面打开时，它提供反向链接。

string'Back'
4

pageTitle

它指定自动完成页面标题。

string-
5

searchbarPlaceholderText

它指定搜索栏占位符文本。

string'Search'
6

searchbarCancelText

它定义了搜索栏取消按钮文本。

string'cancel'
7

notFoundText

它在没有找到匹配元素时显示文本。

string'Nothing found'
8

multiple

它允许通过将其设置为true来选择多个选择。

booleanfalse
9

navbarTheme

它指定了导航栏的颜色主题。

string-
10

backOnSelect

当用户选择值时，将通过将其设置为true来关闭自动完成。

booleanfalse
11

formTheme

它指定表单的颜色主题。

string-

下拉自动完成参数

下表列出了Framework7中可用的Dropdown Autocomplete参数 -

S.No 参数和描述 类型 默认
1

input

它是用于文本输入的字符串或HTML元素。

字符串或HTMLElement -
2

dropdownPlaceholderText

它指定下拉占位符文本。

string-
3

updateInputValueOnSelect

您可以通过将其设置为true来更新select上的输入值。

booleantrue
4

expandInput

您可以通过将item-input设置为true，在列表视图中展开文本输入以在下拉期间全屏显示。

booleanfalse

自动回调功能 (Autocomplete Callbacks Functions)

下表列出了Framework7中可用的Dropdown Autocomplete参数 -

S.No 参数和描述 类型 默认
1

onChange

每当更改自动完成值时，将执行此回调函数。

function (autocomplete, value)-
2

onOpen

每当打开自动完成时，将执行此回调函数。

function (autocomplete)-
3

onClose

每当关闭自动完成时，将执行此回调函数。

function (autocomplete)-

自动填充模板

下表列出了Framework7中可用的Dropdown Autocomplete参数 -

S.No 参数和描述 类型 默认
1

navbarTemplate

它是独立的自动完成导航栏模板。

string-
2

itemTemplate

它是独立的template7表单项。

string-
3

dropdownTemplate

它是template7下拉模板。

string-
4

dropdownItemTemplate

它是template7下拉列表项。

string-
5

dropdownPlaceholderTemplate

它是template7下拉占位符项。

string-

默认模板

以下是上面定义的模板参数的默认模板代码片段 -

navbarTemplate (navbarTemplate) 

<div class = "navbar {{#if navbarTheme}}theme-{{navbarTheme}}{{/if}}">
   <div class = "navbar-inner">
      <div class = "left sliding">
         {{#if material}}
            <a href = "#" class = "link {{#if inPopup}}close-popup{{else}}back{{/if}} icon-only">
               <i class = "icon icon-back"></i>
            </a>
         {{else}}
            <a href = "#" class = "link {{#if inPopup}}close-popup{{else}}back{{/if}}">
               <i class = "icon icon-back"></i>
               {{#if inPopup}}
                  <span>{{popupCloseText}}</span>
               {{else}}
                  <span>{{backText}}</span>
               {{/if}}
            </a>
         {{/if}}
      </div>
      <div class = "center sliding">{{pageTitle}}</div>
      {{#if preloader}}
         <div class = "right">
            <div class = "autocomplete-preloader preloader 
               {{#if preloaderColor}}
                  preloader-{{preloaderColor}}
               {{/if}}">
            </div>
         </div>
      {{/if}}
   </div>
</div>

itemTemplate (itemTemplate) 

<li>
   <label class = "label-{{inputType}} item-content">
      <input type = "{{inputType}}" name = "{{inputName}}" value = "{{value}}" {{#if selected}}checked{{/if}}>
      {{#if material}}
         <div class = "item-media">
            <i class = "icon icon-form-{{inputType}}"></i>
         </div>
         <div class = "item-inner">
            <div class = "item-title">{{text}}</div>
         </div>
      {{else}}
         {{#if checkbox}}
            <div class = "item-media">
               <i class = "icon icon-form-checkbox"></i>
            </div>
         {{/if}}
         <div class = "item-inner">
            <div class = "item-title">{{text}}</div>
         </div>
      {{/if}}
   </label>
</li>

dropdownTemplate (dropdownTemplate) 

<div class = "autocomplete-dropdown">
   <div class = "autocomplete-dropdown-inner">
      <div class = "list-block">
         <ul></ul>
      </div>
   </div>
   {{#if preloader}}
      <div class = "autocomplete-preloader preloader 
         {{#if preloaderColor}}
            preloader-{{preloaderColor}}
         {{/if}}">
         {{#if material}}
            {{materialPreloaderHtml}}
         {{/if}}
      </div>
   {{/if}}
</div>

dropdownItemTemplate

<li>
   <label class = "{{#unless placeholder}}label-radio{{/unless}} item-content" data-value = "{{value}}">
      <div class = "item-inner">
         <div class = "item-title">{{text}}</div>
      </div>
   </label>
</li>

dropdownPlaceholderTemplate

<li class = "autocomplete-dropdown-placeholder">
   <div class = "item-content">
      <div class = "item-inner">
         <div class = "item-title">{{text}}</div>
      </div>
   </label>
</li>

自动填充方法

下表指定了Framework7中可用的自动填充方法 -

S.No 方法和描述
1

myAutocomplete.params

定义与对象一起传递的初始化参数。

2

myAutocomplete.value

它使用选定的值定义数组。

3

myAutocomplete.opened

如果设置为true，则会打开自动完成功能。

4

myAutocomplete.dropdown

它指定自动完成下拉列表的实例。

5

myAutocomplete.popup

它指定自动完成弹出窗口的实例。

6

myAutocomplete.page

它指定了自动填充页面的实例。

7

myAutocomplete.pageData

它定义了自动填充页面数据。

8

myAutocomplete.searchbar

它定义了自动填充搜索栏实例。

自动完成属性

下表指定了Framework7中可用的自动填充方法 -

S.No 属性和描述
1

myAutocomplete.open()

它会打开自动填充功能，可以用作下拉列表，弹出窗口或页面。

2

myAutocomplete.close()

它会关闭自动填充功能。

3

myAutocomplete.showPreloader()

它显示自动完成预加载器。

4

myAutocomplete.hidePreloader()

它隐藏了自动完成预加载器。

5

myAutocomplete.destroy()

它会破坏自动完成预加载器实例并删除所有事件。

例子 (Example)

以下示例演示了隐藏在Framework7中的自动完成参数的使用 - 

<!DOCTYPE html>
<html>
   <head>
      <meta name = "viewport" content = "width = device-width, initial-scale = 1, 
         maximum-scale = 1, minimum-scale = 1, user-scalable = no, minimal-ui" />
      <meta name = "apple-mobile-web-app-capable" content = "yes" />
      <meta name = "apple-mobile-web-app-status-bar-style" content = "black" />
      <title>Autocomplete</title>
      <link rel = "stylesheet" 
         href = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/css/framework7.ios.min.css" />
      <link rel = "stylesheet" 
         href = "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/css/framework7.ios.colors.min.css" />
   </head>
   <body>
      <div class = "views">
         <div class = "view view-main">
            <div class = "pages">
               <div data-page = "home" class = "page navbar-fixed">
                  <div class = "navbar">
                     <div class = "navbar-inner">
                        <div class = "left"> </div>
                        <div class = "center">Autcomplete</div>
                        <div class = "right"> </div>
                     </div>
                  </div>
                  <div class = "page-content">
                     <div class = "content-block-title">Simple Dropdown Autocomplete</div>
                     <div class = "list-block">
                        <ul>
                           <li class = "item-content">
                              <div class = "item-title label">Country</div>
                              <div class = "item-input">
                                 <input type = "text" placeholder = "Country" id = "autocomplete-dropdown">
                              </div>
                           </li>
                        </ul>
                     </div>
                     <div class = "content-block-title">Dropdown With Input Expand</div>
                     <div class = "list-block">
                        <ul>
                           <li class = "item-content">
                              <div class = "item-title label">Country</div>
                              <div class = "item-input">
                                 <input type = "text" placeholder = "Country" id = "autocomplete-dropdown-expand">
                              </div>
                           </li>
                        </ul>
                     </div>
                     <div class = "content-block-title">Dropdown With All Values</div>
                     <div class = "list-block">
                        <ul>
                           <li class = "item-content">
                              <div class = "item-title label">Country</div>
                              <div class = "item-input">
                                 <input type = "text" placeholder = "Country" id = "autocomplete-dropdown-all">
                              </div>
                           </li>
                        </ul>
                     </div>
                     <div class = "content-block-title">Dropdown With Placeholder</div>
                     <div class = "list-block">
                        <ul>
                           <li class = "item-content">
                              <div class = "item-title label">Country</div>
                              <div class = "item-input">
                                 <input type = "text" placeholder = "Country" id = "autocomplete-dropdown-placeholder">
                              </div>
                           </li>
                        </ul>
                     </div>
                     <div class = "content-block-title">Simple Standalone Autocomplete</div>
                     <div class = "list-block">
                        <ul>
                           <li>
                              <a href = "#" id = "autocomplete-standalone" class = "item-link item-content autocomplete-opener">
                                 <input type = "hidden">
                                 <div class = "item-inner">
                                    <div class = "item-title">Favorite Country</div>
                                    <div class = "item-after"></div>
                                 </div>
                              </a>
                           </li>
                        </ul>
                     </div>
                     <div class = "content-block-title">Popup Standalone Autocomplete</div>
                     <div class = "list-block">
                        <ul>
                           <li>
                              <a href = "#" id = "autocomplete-standalone-popup" class = "item-link item-content autocomplete-opener">
                                 <input type = "hidden">
                                 <div class = "item-inner">
                                    <div class = "item-title">Favorite Country</div>
                                    <div class = "item-after"></div>
                                 </div>
                              </a>
                           </li>
                        </ul>
                     </div>
                     <div class = "content-block-title">Multiple Values Standalone Autocomplete</div>
                     <div class = "list-block">
                        <ul>
                           <li>
                              <a href = "#" id = "autocomplete-standalone-multiple" class = "item-link item-content autocomplete-opener">
                                 <input type = "hidden">
                                 <div class = "item-inner">
                                    <div class = "item-title">Favorite Countries</div>
                                    <div class = "item-after"></div>
                                 </div>
                              </a>
                           </li>
                        </ul>
                     </div>
                  </div> 
               </div>
            </div>
         </div>
      </div>
      <script type  =  "text/javascript" 
         src  =  "https://cdnjs.cloudflare.com/ajax/libs/framework7/1.4.2/js/framework7.min.js"></script>
      <script>
         var myApp  =  new Framework7();
         var $$  =  Dom7;
         var mainView  =  myApp.addView('.view-main');
         // Countries data array
         var countries  =  ('India Africa Australia NewZealand England WestIndies Scotland Zimbabwe Srilanka Bangladesh').split(' ');
         // Simple Dropdown
         var autocompleteDropdownSimple  =  myApp.autocomplete ({
            input: '#autocomplete-dropdown',
            openIn: 'dropdown',
            source: function (autocomplete, query, render) {
               var results  =  [];
               if (query.length === 0) {
                  render(results);
                  return;
               }
               // You can find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) 
                     results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            }
         });
         // Dropdown with input expand
         var autocompleteDropdownExpand = myApp.autocomplete ({
            input: '#autocomplete-dropdown-expand',
            openIn: 'dropdown',
            expandInput: true,   // expandInput used as item-input in List View will be expanded to full screen wide
                                 //during dropdown
            source: function (autocomplete, query, render) {
               var results = [];
               if (query.length === 0) {
                  render(results);
                  return;
               }
               // Find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            }
         });
         // Dropdown with all values
         var autocompleteDropdownAll = myApp.autocomplete ({
            input: '#autocomplete-dropdown-all',
            openIn: 'dropdown',
            source: function (autocomplete, query, render) {
               var results = [];
               // You can find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) 
                     results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            }
         });
         // Dropdown with placeholder
         var autocompleteDropdownPlaceholder = myApp.autocomplete ({
            input: '#autocomplete-dropdown-placeholder',
            openIn: 'dropdown',
            dropdownPlaceholderText: 'Type as "India"',
            source: function (autocomplete, query, render) {
               var results = [];
               if (query.length === 0) {
                  render(results);
                  return;
               }
               // You can find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) 
                     results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            }
         });
         // Simple Standalone
         var autocompleteStandaloneSimple = myApp.autocomplete ({
            openIn: 'page', //open in page
            opener: $$('#autocomplete-standalone'), //link that opens autocomplete
            backOnSelect: true, //go back after we select something
            source: function (autocomplete, query, render) {
               var results = [];
               if (query.length === 0) {
                  render(results);
                  return;
               }
               // You can find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) 
                     results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            },
            onChange: function (autocomplete, value) {
               // Here add the item text value to item-after
               $$('#autocomplete-standalone').find('.item-after').text(value[0]);
               // You can add item value to input value
               $$('#autocomplete-standalone').find('input').val(value[0]);
            }
         });
         // Standalone Popup
         var autocompleteStandalonePopup = myApp.autocomplete ({
            openIn: 'popup', // Opens the Autocomplete in page
            opener: $$('#autocomplete-standalone-popup'), // It will open standalone autocomplete popup
            backOnSelect: true, //After selecting item, then go back to page
            source: function (autocomplete, query, render) {
               var results = [];
               if (query.length === 0) {
                  render(results);
                  return;
               }
               // You can find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            },
            onChange: function (autocomplete, value) {
               // Here add the item text value to item-after
               $$('#autocomplete-standalone-popup').find('.item-after').text(value[0]);
               // You can add item value to input value
               $$('#autocomplete-standalone-popup').find('input').val(value[0]);
            }
         });
         // Multiple Standalone
         var autocompleteStandaloneMultiple = myApp.autocomplete ({
            openIn: 'page', //Opens the Autocomplete in page
            opener: $$('#autocomplete-standalone-multiple'), //link that opens autocomplete
            multiple: true, //Allow multiple values
            source: function (autocomplete, query, render) {
               var results = [];
               if (query.length === 0) {
                  render(results);
                  return;
               }
               // You can find matched items
               for (var i = 0; i < countries.length; i++) {
                  if (countries[i].toLowerCase().indexOf(query.toLowerCase()) >= 0) results.push(countries[i]);
               }
               // Display the items by passing array with result items
               render(results);
            },
            onChange: function (autocomplete, value) {
               // Here add the item text value to item-after
               $$('#autocomplete-standalone-multiple').find('.item-after').text(value.join(', '));
               // You can add item value to input value
               $$('#autocomplete-standalone-multiple').find('input').val(value.join(', '));
            }
         });
      </script>
   </body>
</html>

输出 (Output)

让我们执行以下步骤，看看上面给出的代码是如何工作的 -

  • 将上面给出的HTML代码保存为服务器根文件夹中的autocomplete.html文件。

  • 以http://localhost/autocomplete.html打开此HTML文件，输出显示如下。

  • 该示例在简单下拉列表中提供值的自动完成，包含所有值的下拉列表，带占位符的下拉列表，独立自动完成等。

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