scroll

问题 structure UIViewController - UIScrollview - UIButton I'm going to make scrollview can receive button event. So whenever user do scrolling(dragging) on the button, the scrollview react as scrolling itself. I made button down and moved handler with event forwarding like below - (IBAction)buttonTouchedMove:(id)sender withEvent:(UIEvent *)event { [[sender nextResponder] touchesMoved:[event allTouches] withEvent:event]; } - (IBAction)buttonTouchedDown:(id)sender withEvent:(UIEvent *)event { [

问题 I'm developing a select menu replacement in jquery. First I've to make the new select menu focusable by just adding tabindex="0" to the container. Then, I disable focus on the original select menu and give focus to the new one. When the new one is focused and you press the up and down arrows the options change accordingly but there's a big problem. As you press the arrows the body moves too. I tried all these solutions so far with no luck: $(window).unbind('scroll'); $(document).unbind(

问题 First of all, sorry for my bad english. Hope to understand about that. Please check below url what I want to do. I want to make horizontal scroll viewer like Gallery. But Gallery is deprecated now. So I am going to find other scrollable container such as HorizontalScrollView or HorizontalListView instead of Gallery. Scrollable container should have property for center-locking, velocity and every child item's width can be able to adjusted dynamically. I think we can use HorizontalListView or

问题 Ok so I use the following code to check whether an element is visible on-screen. (function($) { /** * Copyright 2012, Digital Fusion * Licensed under the MIT license. * http://teamdf.com/jquery-plugins/license/ * * @author Sam Sehnert * @desc A small plugin that checks whether elements are within * the user visible viewport of a web browser. * only accounts for vertical position, not horizontal. */ $.fn.visible = function(partial) { var $t = $(this), $w = $(window), viewTop = $w.scrollTop(),

问题 I am using angular JS right now, in the i am using ui-bootstrap typeahead I am trying scroll on demand logic in typeahead i have tried this: HTML: <div class='container-fluid' ng-controller="TypeaheadCtrl"> <pre>Model: {{selected| json}}</pre> <input type="text" ng-model="selected" maxlength="5" typeahead="country.name for country in countries | filter:$viewValue | limitTo:8"> </div> JS: angular.module('plunker', ['ui.bootstrap']) .controller('TypeaheadCtrl', function ($scope) { $scope

问题 I've created a ListBox to display items in groups, where the groups are wrapped right to left when they can no longer fit within the height of the ListBox's panel. So, the groups would appear similar to this in the listbox, where each group's height is arbitrary (group 1, for instance, is twice as tall as group 2): [ 1 ][ 3 ][ 5 ] [ ][ 4 ][ 6 ] [ 2 ][ ] The following XAML works correctly in that it performs the wrapping, and allows the horizontal scroll bar to appear when the items run off

问题 Goal: I'm trying to create a parallax scrolling effect. The parallax-container are implemented like so: < div class="parallax slide-1" > < /div > I need the parallax effect to start, when its container is scrolled into view . Once it has left the view , the effect needs to stop. The Problem: The jQuery works fine so far. But: Since I can have multiple parallax-container on one page (e.g. one at the top + one at the bottom) I need them to be treated independently by jQuery. At the moment the

问题 I am using scrollView without any listView or gridview .I have just added same views to it but know I want to programmatically scroll to a particular position. Is this possible ? Please help I am using Horizontal Scroll? 回答1: you can use this method horizontalScrollView.scrollBy(160, 0); or horizontalScrollView.scrollTo(160, 0); 来源： https://stackoverflow.com/questions/11700581/how-to-move-horizontal-scroll-view-to-a-particular-position

问题 I have created a chat activity and like facebook messenger, there is an EditText at the bottom and above is the RecyclerView of messages. When Keyboard opens, I want to scroll RecyclerView up exactly how much it should scroll up. To be more specific, lets assume there are 5 messages in the RecyclerView and currently 3rd message is just above the EditText. So when keyboard is open, I want to keep 3rd message just above the EditText like before. I have searched but could not find. If this is a

问题 I have a page with a long iframe on it, which loads a schedule display with pages of various lengths. When a new page is displayed in the iframe though, the main page is often still showing the bottom of the page (lots of whitespace). How can I have the main page scroll to the top anytime a new page is loaded in the iframe? This is the page I've tried this is jQuery (on the parent page): <script type="text/javascript"> jQuery(document).ready(function() { $('#body iframe').load(function(){ $