scroll

问题 I have a expandable listview with textviews as rows and a webview as a child of each row (group). when user cliked on a group (row) webview with html loaded. after scrolling the webview towards end and then clicking another row doesnot show the group at top. it automatically scrolls down. I want to scroll upwards so till currently selected group is at top. thanks 回答1: You need to implement OnGroupClickListener with return value true to prevent event flow. In the OnGroupClick you can use

问题 I wonder if it's possible to scroll down after 6 seconds to an anchor? I found this script where it scrolls down a couple of pixels but it's not completely what I'm looking for. <script type='text/javascript'> setTimeout("window.scrollBy(0,270);",6000); </script> Also how can i make it scroll down smoothly? I found this but how do i combine it with the other script? function scrollToAnchor(aid) { var aTag = $("a[name='" + aid + "']"); $('html,body').animate({scrollTop: aTag.offset().top},

问题 I have many TextSpan s in my RichText . I would like to scroll in a specific TextSpan , but for knowing the position I need the context. TextSpan is not a widget. So how can I get the TextSpan 's position? I can't use WidgetSpan because my Span s are pieces of the same sentence. Thanks 来源： https://stackoverflow.com/questions/57907410/scrollable-position-of-a-textspan-within-a-richtext

问题 I want to make a nice horizontal scroll bar in one of my div's. Like this ones here: I'm using angular2 CLI project. What I've tried so far: I found this package angular2-slimscroll - the latest updated one is here: - but is not working as expected - i guess it has to do with the final angular 2.0 final release which broke the code. npm install ng2-slimscroll --save In my app.module.ts i have: import {SlimScroll} from 'ng2-slimscroll'; @NgModule({ declarations: [ AppComponent, SlimScroll //

问题 I have a tkinter treeview with a vertical scrollbar. To make it (look like) editable, I create a popup Entry when the user double-clicks on a cell of the treeview. However, I can't make the popup to move when the treeview is scrolled. import tkinter as tk from tkinter import ttk class EntryPopup(ttk.Entry): def __init__(self, parent, itemId, col, **kw): super().__init__(parent, **kw) self.tv = parent self.iId = itemId self.column = col self['exportselection'] = False self.focus_force() self

问题 I set up timeout with jquery at scroll action. For example, after scroll wait 10 seconds and send ajax request, but how to cancel previous timeout if receive new action of scroll withing first timeout not processed? 回答1: Use clearTimeout: var timer; $(window).scroll(function(){ if ( timer ) clearTimeout(timer); timer = setTimeout(function(){ // Make your AJAX request here... }, 10000); }); 来源： https://stackoverflow.com/questions/10573021/jquery-scroll-with-timeout

问题 I have a Cordova app (PGB cli-6.5.0, Cordova iOS 4.3.1, wkwebview) that is exhibiting strange behavior on iOS 12.1. The code had been working for years before iOS 12. The app allows a variety of numeric input styles implemented in the app but also includes the standard keyboard. In iOS 12 the input popup div or standard keyboard comes up and appears as normal, but a touch does not register in the correct place. They are offset vertically (remember everything is normal visually). This is true

问题 I used the JQuery function scrollTop on a list of contact numbers in a click function for each letter. It scrolls to where it is supposed to but then scrolls back to the top immediately. Here is a sample of the function in the code: $('.a').click(function(){ $('html, body').animate({scrollTop:$('#A').position().top}, 'slow'); }); Here is the JSFiddle I made for it: http://jsfiddle.net/CR47/MdtSE/ 回答1: If you're adding this to an anchor tag, you normally need to add a preventDefault() or

问题 I used the JQuery function scrollTop on a list of contact numbers in a click function for each letter. It scrolls to where it is supposed to but then scrolls back to the top immediately. Here is a sample of the function in the code: $('.a').click(function(){ $('html, body').animate({scrollTop:$('#A').position().top}, 'slow'); }); Here is the JSFiddle I made for it: http://jsfiddle.net/CR47/MdtSE/ 回答1: If you're adding this to an anchor tag, you normally need to add a preventDefault() or

问题 I have a RichTextBox with thousands of lines of text in it. I can easily SET the first visible line by using ScrollToCaret() by doing... this.SelectionStart = this.Find(this.Lines[lineIndex], RichTextBoxFinds.NoHighlight); this.ScrollToCaret(); But I would like to be able to GET the first visible line too. Any suggestions? 回答1: Here may be what you need: //get the first visible char index int firstVisibleChar = richTextBox1.GetCharIndexFromPosition(new Point(0,0)); //get the line index from