I'm creating a mobile app using jquery mobile and cordova. I've successfully loaded a dynamic listview from a json ajax call. My issue is that when I navigate to another page, then press the back button, the original page's listview does not load and there is nothing where it should be. If I refresh the page, the listview appears. Rather than refresh the whole page every time I navigate to this page, how would I refresh just the listview?
I've tried refreshing the listview both when the DOM and the window have loaded, and before both, and using $(document).on("pagebeforeshow", "#pagenamehere", function() {}); to no avail.
To be more specific, I have two pages with listviews. The navigational steps go as follows:
1. load page 1: listview shows
2. navigate to page 2: its listview does not show
3. press back: page 1 listview shows
4. navigate to page 2: its listview still does not show
5. refresh page 2: its listview DOES show
6. press back: page 1's listview does NOT show
This process should make it clear that the listview only loads when the url is directly input or reloaded; for some reason navigation between pages (different html files) breaks this.
If you have script inside the head tag of the second page and this page is loaded through Ajax, then the script won't execute.
Try to move your script from the head tag inside the second page's div (<div data-role="page" id="mySecondPage">) or create a JS file and load it on the first page's load. Relevant example here
jQuery Mobile uses Ajax to perform pages transitions so during the transition jQuery Mobile will only inject the contents of the response's body element (or more specifically the data-role="page" element). Nothing in the head of the page will be used (except the page title).
In conclusion, any scripts and styles referenced in the head of a page won't have any effect when a page is loaded via Ajax. They will execute if the page is requested via HTTP and that's why your listview is loaded after a full page refresh.
Related
I have a packaged web application with multiple ajax calls that will load html content in the middle of the website.
Is there a way to go directly to one of the ajax calls from the URL instead of manually clicking the buttons to reach the required content on the page immediately?
As a sample, i want to show the content of this page like i clicked the button without clicking it using JavaScript, jQuery, or manual click.
https://www.w3schools.com/xml/tryit.asp?filename=tryajax_first
I have a single page application.With header, footer and content sections.
Header and footer part will be loaded one time. For consecutive navigation the content page will be loaded (its simple MVC plugin). The content page has Jave scripts it needed.
My issues is when I load the content page for the first time the java script is loading. And if I navigate to some other page and revisit to the page the Java script will not be called again.
For example say I have content page PageA and it has java script reference for Myscript.js.I have simple alert in Myscript.js. When I load PageA for first time I'm getting alert. But if I navigate to PageB and come to PageA I'm not getting the alert.
I am using lazyload by VVO http://vvo.github.io/lazyload/ from quite a time but for this specific page I don't know what is going wrong. It loads all images when page loads, which are supposed to be lazy loaded. On other pages of website it is working fine.
I have even tried using custom initialization, changing offset and viewport container but no use. My document is also not automatically scrolling on page load.
Problem is happening on this website's home page Winni.in
Below banner there are 3 rows of products, out of which last 2 row's products images should be lazy loaded only on page scroll. But still it loads all images on page load
On page scroll you might be loading dynamic elements from AJAX.
VVO Lazyload - lzld(this) will not work form dynamic elements be default.
You have to manually call lzld(imagelement) again for dynamic elements.
Example:-
// Add following code inside AJAX success function
$('#dynamic_content img').each(function(index,element) {
lzld(element);
});
We have the following situation:
We have a webpage (let's call it Page A) that gives us only the header of a website.
We have another webpage (let's call it Page B) that gives us the content with no header and includes the Page A in a hidden iframe.
When Page A is loaded it will get its own HTML and add it in an empty div in Page B.
All of this is working as expected.
My question:
Can I delay the page rendering of Page B when it reaches the iframe, wait for the iframe to load and when the HTML is populated in Page A to continue the rendering. The behaviour should be as if I'm calling the contents from a synchronous AJAX call. The idea is NOT to show the content of the Page below the main menu until the menu HTML is populated.
The business logics behind this:
We're using an external service as a forum and we need to add our website header above. They can give as a free-html slot where we can put our own HTML. The header is dynamic so we need to load it each time from an URL. Since their site may response faster we don't want the content to load and several moments later the menu to pop out of nowhere. We need to have the menu HTML populated before we continue showing the content. The Menu HTML is populated from an iFrame by the iFrame so we need to wait for it to load.
Any help will be appreciated.
Maybe you can hide the contents of Page B via style="display:none;" and then show the contents when iframe's load event fires.
Insert the markup for the <iframe> dynamically in a content loaded event handler. Since you've tagged the question jquery
$(window).on("load", function() {
var iframe = $("iframe").attr("src",url).whatever();
$("whatever selector").append(iframe);
})
I have a iFrame which loads many different pages, the initial load is always fine as i hide the IFrame until content is loaded then only do i display the IFrame.
My problem is now i have some pages which need to postback to grab information out the database dependent on what a user has on that page.
When this happens i get a white page while content is loaded. I cant hide the page as this would look worse then having a white loading page, i just need it to sit still with no flash while its drop down box populates.
I'm up for any solution using JS JQ or C# and my project is in ASP.
How i call my page refresh:
window.location.reload(true);
I call the refresh from inside the iFrame (Name: IFrameDam)
I am able to hid my IFrame from with in its self if this sparks any idea's:
$('#IFrameDam', window.parent.document).hide();
You can use Ajax request instead iframe and update the contents inside iframe parent div with id #IFrameDam and set the timer to resend ajax request and update without white screen. This behavior is same for almost any browser whereas iframe loads a whole new page inside current page leaving a blank space when not loaded.
here's how you can achieve this using ajax and jquery.
Just put iframe src path after "request_page" and refresh time after "time" variables.
Follow this link: http://jsbin.com/EYIKAnAb/1/edit?js