UI móvel angular - áreas roláveis

Existem problemas enfrentados em alguns dispositivos para elementos posicionados fixos. Para trabalhar com áreas roláveis, a IU móvel angular usa overflow: auto .

O modelo para a área rolável é o seguinte -

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

Adicionando cabeçalhos e rodapés em áreas roláveis

Adicionando classes css .scrollable-header / .scrollable-footer , adicionaremos cabeçalho / rodapé fixo à área rolável que você deseja. Você não precisa se preocupar com a altura e posicionamento, o css cuidará de tudo.

O modelo para cabeçalho / rodapé é mostrado abaixo -

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

Diretivas em áreas roláveis

A seguir estão as diretivas que são muito úteis ao trabalhar com áreas roláveis ​​-

uiScrollTop- Para ser usado quando você deseja fazer algo quando o pergaminho chega ao topo. Por exemplo, ui-scroll-top = "callyourfunc ()".

uiScrollBottom- Para ser usado quando você deseja fazer algo quando o pergaminho chega ao final. Por exemplo, ui-scroll-bottom = "callyourfunc ()".

uiScrollableHeader- Para ser usado quando você deseja fazer algo quando o pergaminho atinge o cabeçalho. Por exemplo, ui-scroll-header = "callyourfunc ()".

uiScrollableFooter- Para ser usado quando você deseja fazer algo quando o pergaminho chega ao rodapé. Por exemplo, ui-scroll-footer = "callyourfunc ()".

Um exemplo de diretiva 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>

Aqui está um exemplo prático de áreas com rolagem.

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 seguir está a exibição no navegador -