activity-indicator

问题 I'm loading images async into my Listview according to this answer: Xamarin - Asynchronous data binding I'd like to display a ActivityIndicator while the page is loading the data from the web, but cannot figure out how to bind the visibility it to the task, so that it disappears when the task is done loading.. I've created a isLoading bool variable in my ViewModel. I tried it this way in my ViewModel, but It's not working: isLoading = true; GetImagesCommand = new Command(async () => await

问题 I have a page with a list of items and when some is selected, the ActivityIndicator turns on and goes to another page, turning off. When i am in this new page and i click the BackButton on NavigationPage, i return to the page with the List of items, but the problem is that the ActivityIndicator is on (persists). How can i fix it ? [List Page] public partial class ResultadosBuscados : ContentPage { public ResultadosBuscados(IEnumerable dadosPesquisados) { IsBusy = false; InitializeComponent();

问题 I have a page with a list of items and when some is selected, the ActivityIndicator turns on and goes to another page, turning off. When i am in this new page and i click the BackButton on NavigationPage, i return to the page with the List of items, but the problem is that the ActivityIndicator is on (persists). How can i fix it ? [List Page] public partial class ResultadosBuscados : ContentPage { public ResultadosBuscados(IEnumerable dadosPesquisados) { IsBusy = false; InitializeComponent();

问题 I am programming for an Android application. while clicking a button, it calls a service to display the necessary contents. For calling the service and to parse the XML data present in that service it takes nearly 5 to 10 seconds. In these 5 seconds time period I need to display an activity Indicator with a text stating that "Loading. Please wait...". This part works fine for iPhone. But not in Android. Any help would be appreciated.. Thanks 回答1: Check this. Look at "Creating a ProgressDialog

问题 I'm using the code found here http://blog.blackwhale.at/?p=336 to create a custom activityIndicator in the current version of xCode. This code uses a series of .png images in an array and then displays them at the set interval to create an animated loading image that you can then place on the screen (and assuming you can somehow remove it) whenever you want. In my main ViewController.m file I have the following code in my viewDidLoad section : /* --- START CUSTOM ACTIVITY INDICATOR */ /

问题 I have some heavy code that runs for around 0.2 seconds. I set up the activity indicator like this; however, it doesn't show up, but rather the whole screen freezes for around 0.2seconds until the code finishes. func heavyWork() { self.actvityIndicator.startAnimating() ... // heavy loop codes here ... self.activityIndicator.stopAnimating() } Is this the correct way of using the activity indicator? When I comment out // self.activityIndicator.stopAnimating() the activity indicator shows up and

问题 I was in search of a way to show a status indicator using jQuery and I found a solution in the jQuery Cookbook, it showed this solution (function($) { $(document).ready(function() { $('#ajaxStatus') .ajaxStart(function() { $(this).show(); }) .ajaxStop(function() { $(this).hide(); }); ..... })(jQuery); then it cautioned, If you experience performance issues in your application, it may be because of the cost of event propagation if there is a significantly large number of elements. In this case

问题 Situation: I'm working with Wicket's IndicatingAjaxButton . I have the button set up on a page with black background. When the user pushes the button, the button's activity indicator goes off and spins until the system is ready to move on. Problem: Because of the black background, the indicator looks bad. Since part of the indicator is animated in black, some of the details are lost using the indicator on a black background. Question: Is it possible in Wicket to change the color of the

问题 I have a Xamarin Form which is using Scroll View. I am trying to show a Activity Indicator at the top as I have a ListView in the middle. But when the user scrolls down the loading is not shown. So, I need help in disabling the page and showing loading at some z-index as in a popup. 回答1: If you want to have an overlay while the screen is loading you can do this. <Grid> <ScrollView> <!-- Insert your page content in here --> </ScrollView> <ContentView IsVisible="false" HorizontalOptions=

问题 I have UITableView where each cell has one UIImage and the image is being downloaded from an API using JSON. I handled the initial images and data via Background Threading. However, as user scrolls down inside table view, images to other cells begins to download, so those cells requires some refreshing. I thought about adding an ActivityIndicator inside UIImageView, so user will notice image is being downloaded. Additional info, UIImageView is inside an UIStackView. I thought about isHidden