Question

我正在尝试在页面加载时在InAppBrowser中实现IonicLoading Spinner。这就是我在做的事情：

<button class="button" ng-controller="View" ng-click="showHelp('http://www.google.com')">
</button>

控制器：

.controller('View', function($scope, $ionicLoading) {

	$scope.showHelp=function(url) {
	var ref = window.open(url, '_blank', 'location=yes');
    ref.addEventListener('loadstart', function(){ $ionicLoading.show(); }); 
	ref.addEventListener('loadstop', function() { $ionicLoading.hide(); });
	
	}
})

问题是微调器没有在InAppBrowser中加载而是在后台显示（即只有在我关闭InAppBrowser时才可见）

任何帮助都将不胜感激。

Answer 1

我正在使用离子V2 +（离子3）应用程序，我使用cordova-plugin-dialogs，但它并不像我预期的那样对我有效。我使用Spinner Dialog并且效果很好。请在下面找到示例代码

安装插件

ionic cordova plugin add cordova-plugin-native-spinner

npm install --save @ionic-native/spinner-dialog

<强>代码

import { InAppBrowser } from '@ionic-native/in-app-browser';
import { SpinnerDialog } from '@ionic-native/spinner-dialog';

constructor(
private iab: InAppBrowser,
private spinnerDialog: SpinnerDialog) { }

...

 const browser = this.iab.create('https://www.google.com',
  '_blank',
  {
    location: 'no',
    clearcache: 'yes',
    clearsessioncache: 'yes'
  });

browser.on('loadstart').subscribe((eve) => {
  this.spinnerDialog.show(null, null, true);     
}, err => {
  this.spinnerDialog.hide();
})

browser.on('loadstop').subscribe(()=>{
  this.spinnerDialog.hide();
}, err =>{
  this.spinnerDialog.hide();
})

browser.on('loaderror').subscribe(()=>{
  this.spinnerDialog.hide();
}, err =>{
  this.spinnerDialog.hide();
})

browser.on('exit').subscribe(()=>{
  this.spinnerDialog.hide();
}, err =>{
  this.spinnerDialog.hide();
})

Answer 2

由于inAppBrowser位于WebView之上，因此您无法使用HTML添加Loader。您可以在添加cordova-plugin-dialogs插件后添加本机Loader。以下是一些可以帮助您入门的代码：

开始加载：

navigator.notification.activityStart("Please Wait", "Its loading.....");

停止加载程序：

navigator.notification.activityStop();

如果您需要更多信息，请查看this参考。

Answer 3

不推荐使用<nav class="navbar navbar-expand-lg navbar-dark bg-dark">  <div class="d-flex flex-nowrap w-100"> <a class="text-truncate navbar-brand" href="#">Very long navbar brand text that will ultimately need to be clipped with ellipsis on smaller screens than a 4K TV</a> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> </div>  <div class="collapse navbar-collapse" id="navbarSupportedContent"> <ul class="navbar-nav mr-auto"> <li class="nav-item active"> <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Dropdown </a> <div class="dropdown-menu" aria-labelledby="navbarDropdown"> <a class="dropdown-item" href="#">Action</a> <a class="dropdown-item" href="#">Another action</a> <div class="dropdown-divider"></div> <a class="dropdown-item" href="#">Something else here</a> </div> </li> <li class="nav-item"> <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a> </li> </ul> </div> </nav> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">  <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>，我建议采用以下方法来防止InAppBrowser的空白打开屏幕

以隐藏模式打开InAppBrowser，稍后在activityStop事件中显示InAppBrowser。直到您可以显示离子装载机或您的自定义装载机

loadstop

在InAppBrowser离子内加载微调器

3 个答案: