Interfaz de usuario angular móvil: áreas desplazables

En algunos dispositivos, existen problemas para elementos de posición fija. Para trabajar con áreas desplazables, la interfaz de usuario angular móvil hace uso de overflow: auto .

La plantilla para el área desplazable es la siguiente:

<div class="scrollable">
   <div class="scrollable-content">...</div>
</div>

Agregar encabezados y pies de página en áreas desplazables

Agregando clases CSS .scrollable-header / .scrollable-footer , agregaremos encabezado / pie de página fijo al área desplazable que desee. No tienes que preocuparte por la altura y el posicionamiento, el css se encargará de todo.

La plantilla para el encabezado / pie de página se muestra a continuación:

<div class="scrollable">
   <div class="scrollable-header"><!-- ... --></div>
   <div class="scrollable-content"><!-- ... --></div>
   <div class="scrollable-footer"><!-- ... --></div>
</div>

Directivas en áreas desplazables

Las siguientes son las directivas que son muy útiles cuando se trabaja con áreas desplazables:

uiScrollTop- Para usar cuando quieras hacer algo cuando el pergamino llega a la parte superior. Por ejemplo, ui-scroll-top = "callyourfunc ()".

uiScrollBottom- Para usar cuando quiera hacer algo cuando el pergamino llega a la parte inferior. Por ejemplo, ui-scroll-bottom = "callyourfunc ()".

uiScrollableHeader- Para usar cuando desee hacer algo cuando el desplazamiento llegue al encabezado. Por ejemplo, ui-scroll-header = "callyourfunc ()".

uiScrollableFooter- Para usar cuando desee hacer algo cuando el desplazamiento llegue al pie de página. Por ejemplo, ui-scroll-footer = "callyourfunc ()".

Un ejemplo de la directiva uiScrollBottom:

<div class="scrollable">
   <div class="scrollable-content section" ui-scroll-bottom="callyourfunc()">
      <ul>
         <li ng-repeat="a in lists">
            {{a.name}}
         </li>
      </ul>
   </div>
</div>

A continuación se muestra un ejemplo práctico de áreas desplazables.

index.html

<!DOCTYPE html>
<html>
   <head>
      <meta charset="utf-8" />
      <title>Mobile Angular UI Demo</title>
      <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
      <meta name="apple-mobile-web-app-capable" content="yes" />
      <meta name="viewport" content="user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimal-ui" />
      <meta name="apple-mobile-web-app-status-bar-style" content="yes" />
      <link rel="shortcut icon" href="/assets/img/favicon.png" type="image/x-icon" />
      <link rel="stylesheet" href="node_modules/mobile-angular-ui/dist/css/mobile-angular-ui-hover.min.css" />
      <link rel="stylesheet" href="node_modules/mobile-angular-ui/dist/css/mobile-angular-ui-base.min.css" />
      <link rel="stylesheet" href="node_modules/mobile-angular-ui/dist/css/mobile-angular-ui-desktop.min.css" />
      <script src="node_modules/angular/angular.min.js"></script>
      <script src="node_modules/angular-route/angular-route.min.js"></script>
      <script src="node_modules/mobile-angular-ui/dist/js/mobile-angular-ui.min.js"></script>
      <script src="node_modules/angular-route/angular-route.min.js"></script>
      <script src="node_modules/mobile-angular-ui/dist/js/mobile-angular-ui.gestures.min.js"></script>
      <link rel="stylesheet" href="src/css/app.css" />
      <script src="src/js/app.js"></script>
   </head>
   
   <body ng-app="myFirstApp" ng-controller="MainController">
      
      <!-- Sidebars -->
      <div class="sidebar sidebar-left">
         <div class="scrollable">
            <h1 class="scrollable-header app-name">Tutorials</h1>
            <div class="scrollable-content">
               <div class="list-group" ui-turn-off='uiSidebarLeft'>
                  <a class="list-group-item" href="/">Home Page </a>
                  <a class="list-group-item" href="#/academic"><i class="fa fa-caret-right"></i>Academic Tutorials </a>
                  <a class="list-group-item" href="#/bigdata"><i class="fa fa-caret-right"></i>Big Data & Analytics </a>
                  <a class="list-group-item" href="#/computerProg"><i class="fa fa-caret-right"></i>Computer Programming </a>
                  <a class="list-group-item" href="#/computerscience"><i class="fa fa-caret-right"></i>Computer Science </a>
                  <a class="list-group-item" href="#/databases"><i class="fa fa-caret-right"></i>Databases </a>
                  <a class="list-group-item" href="#/devops"><i class="fa fa-caret-right"></i>DevOps </a>
               </div>
            </div>
         </div>
      </div>
      <div class="sidebar sidebar-right">
         <div class="scrollable">
            <h1 class="scrollable-header app-name">eBooks</h1>
            <div class="scrollable-content">
               <div class="list-group" ui-toggle="uiSidebarRight">
               <a class="list-group-item" href="#/php"><i class="fa fa-caret-right"></i>PHP </a>
               <a class="list-group-item" href="#/Javascript"><i class="fa fa-caret-right"></i>Javascript </a>
            </div>
         </div>
      </div>
   </div>

   <div class="app">

      <div class="navbar navbar-app navbar-absolute-top">
         <div class="navbar-brand navbar-brand-center" ui-yield-to="title">
            TutorialsPoint
         </div>
         <div class="btn-group pull-left">
            <div ui-toggle="uiSidebarLeft" class="btn sidebar-left-toggle">
               <i class="fa fa-th-large "></i> Tutorials
            </div>
         </div>
         <div class="btn-group pull-right" ui-yield-to="navbarAction">
            <div ui-toggle="uiSidebarRight" class="btn sidebar-right-toggle">
               <i class="fal fa-search"></i> eBooks
            </div>
         </div>
      </div>
      <div class="navbar navbar-app navbar-absolute-bottom">
         <div class="btn-group justified">
            <a ui-turn-on="aboutus_modal" class="btn btn-navbar"><i class="fal fa-globe"></i> About us</a>
            <a ui-turn-on="contactus_overlay" class="btn btn-navbar"><i class="fal fa-map-marker-alt"></i> Contact us</a>
         </div>
      </div>

      <!-- App body -->
      <div class='app-body'>
         <div class='app-content'>
            <ng-view></ng-view>
         </div>
      </div>
   </div><!-- ~ .app -->
   <!-- Modals and Overlays -->
   <div ui-yield-to="modals"></div>
   
   </body>
</html>

src / js / app.js

/* eslint no-alert: 0 */

'use strict';

//
// Here is how to define your module
// has dependent on mobile-angular-ui
//
var app=angular.module('myFirstApp', [
   'ngRoute',
   'mobile-angular-ui',
   'mobile-angular-ui.gestures'
]);
app.config(function($routeProvider, $locationProvider) {
   $routeProvider
   .when("/", {
      templateUrl : "src/home/home.html"
   });
   $locationProvider.html5Mode({enabled:true, requireBase:false});
});
app.directive('dragItem', ['$drag', function($drag) {
   return {
      controller: function($scope, $element) {
         $drag.bind($element,
            {
               transform: $drag.TRANSLATE_BOTH,
               end: function(drag) {
                  drag.reset();
               }
            },
            {
               sensitiveArea: $element.parent()
            }
         );
      }
   };
}]);
app.controller('MainController', function($rootScope, $scope, $routeParams) {
   $scope.msg="Welcome to Tutorialspoint!"
   $scope.js="JavaScript is a lightweight, interpreted programming language. It is designed 
   for creating network-centric applications. It is 
   complimentary to and integrated with Java. 
   JavaScript is very easy to implement because it 
   is integrated with HTML. It is open and cross-platform.";
   $scope.angularjs="AngularJS is a very powerful JavaScript Framework. It is used in Single Page 
   Application (SPA) projects. It extends HTML DOM 
   with additional attributes and makes it more 
   responsive to user actions. AngularJS is open 
   source, completely free, and used by thousands of 
   developers around the world. It is licensed under the Apache license version 2.0.";
   $scope.reactjs="React is a front-end library developed by Facebook. It is used for handling 
   the view layer for web and mobile apps. ReactJS 
   allows us to create reusable UI components. It is 
   currently one of the most popular JavaScript 
   libraries and has a strong foundation and large community behind it.";
   var storyList=[];

   for (var i=1; i <= 100; i++) {
      storyList.push('My story no ' + i);
   }

   $scope.storylist=storyList;
   $scope.bottom=function() {
      alert('End of the stories');
   };
});

src / home / home.html

<div class="scrollable">
   <div class="scrollable-header">My Stories List</div>
   <div class="scrollable-content" ui-scroll-bottom="bottom()">
      <div class="list-group">
         <a ng-repeat="item in storylist" href="" class="list-group-item">
            {{ item }} <i class="fa fa-chevron-right pull-right"></i>
         </a>
      </div>
   </div>
   <div class="scrollable-footer">End of the Stories</div>
</div>

A continuación se muestra la pantalla en el navegador: