i'm developing a simple three tabs app for Android and iPhone, using IBM Worklight as framework. Every tab links to a div with data-role="page", as jQuery Mobile specifications.
If I implement the jquery fixed persistent tabbar like is explained there (http://jquerymobile.com/demos/1.2.0/docs/toolbars/footer-persist-a.html), i'm encountering some flickering on the tab item in page transition (with any transiction effect).
If I set the default transition to "none", I could resolve this problem, but I lost the transiction native-like effect.
This behavior appears only if i test the App with a real android device (Xperia Neo, GS2).
If i navigate trough the pages of http://jquerymobile.com/demos/1.2.0/ with my smartphone, especially here: http://jquerymobile.com/demos/1.2.0/docs/toolbars/footer-persist-d.html i can't see the strange behavior, but the footer won't be persistent trough the pages, it just re-render like the whole content and this is worse (this happen with the stock browser or Dolphin, instead looks very well by using Chrome).
Is there a way to improve this effect or there is another way to implement fixed persistent tab bar?
I used as reference the default Android Contacts App.
Maybe you're getting this flicker because you're navigating between pages using rel="external". Try to pass from one page to the other without ajax and you'll see that flickering will dissapear
The problem is due to poor performance of the WebView of the Android environment in rendering 3d transition.
Solved by removing the transition effect with:
$.mobile.defaultPageTransition = "none";
Something else that could help is putting these attributes in the AndroidManifest.xml:
<supports-screens
android:anyDensity="true"
android:largeScreens="false"
android:normalScreens="true"
android:smallScreens="false"
android:xlargeScreens="false" />
<application
android:debuggable="false"
android:hardwareAccelerated="true"/>
Related
There seem te be some subtle differences in the Implementation or configuration between WBWebView and Safari (and SFSafariViewController) that renders a part of the Website I want to display unusable.
Here is what I am trying to do:
Basically all that is needed is an "App" that just opens a specific website in fullscreen mode, so no chrome, URLs or additional navigaton buttons are present. The Website works fine on Safari on iOS (and every other (modern) browser on desktop or mobile) but the menu does not when embedded in the App.
All I did was creating a new single view Application in Xcode, drop in a WKWebView and have it load the URL. The part of the page not working is this menu component that is used throughout the site: http://tympanus.net/codrops/2013/04/19/responsive-multi-level-menu/ So basically the user has no way to navigate. While debugging the website it seems like when I push the menu button the menu does not expand like it should because the changed css classes dont get picked up correctly. If I manually toggle the css classes on the menu-element it gets displayed correctly. It makes me wonder if there are some additonal constraints related to WKWebView?
Can anyone tell me if there are any settings or configurations I can alter that allow the website in WKWebView to behave exactly the same as it would under Safari?
As far as I understand SFSafariViewController I always get the browser toolbar and navigational elements which I dont want to have in the app, so that is not an option- or is there a way to get rid of that?
Any help or pointers would be greatly appreciated :)
I am trying to use the iOS smart app banner on my website. I am currently using jquery mobile 1.3.1 for development. The problem I'm having is jquery mobile automatically hides the address bar on page load. Since the smart app banner appears to be a part of the address bar, the user cannot see the smart app banner unless they scroll up. Is there anyway around this problem? Ideally the page would load and show the smart app banner and not the address bar. However, at this point I would be fine showing both on page load. I know the folks over at HTML5 Boilerplate have solved this issue. See:
Hiding address bar without hiding the smart app banner on iOS 6
The problem with this solution for me is turning off the hide address bar feature in jquery mobile. I can't seem to figure out how to accomplish without altering the jquery mobile core code. I don't really want to alter the jquery mobile code. Mainly because I don't like changing code that I have to update when a new version comes out. Plus I am pulling the jquery mobile file from jquery's CDN. I would like to find another way to solve this problem. Any ideas? Thank.
Add
window.oldScroll = window.scrollTo;
window.scrollTo = function(){return false;};
before you load jquery mobile. This will override Jquery mobile hiding. then you can use the helper.js by reassigning scrollTo after jquery mobile script.
Since I have upgraded jQuery Mobile to 1.3 and PhoneGap to 2.5, I have a problem for page changing in my iOS application.
When I click to a link, for a few milliseconds, I see a "no page" state. It's not a white screen, but the background of my "body" element.
I have made some researches on the web, but it looks like no tricks work for me. Most of them tell to disable transition of jQM. But it is already the case for me.
I have tracked jQM event to see what happens, and apparently when I use the method changePage(), it hides the current page, and then show the final page. And during these two methods, I can see this "no page" state, with my body background.
So it is not the flickering navigation that occurs during transition (because I disabled transition), it's something else.
Anyone would have a suggestion to fix this annoying problem (I cannot post image with my reputation)?
This issue has some suggestions on changing the $.mobile.defaultTransitionHandler to use the simultaneousHandler instead of the default sequentialHandler.
https://github.com/jquery/jquery-mobile/issues/4024
This has improved page transition speed in my application (with $.mobile.defaultPageTransition set to 'none'), but I am still dealing with occasional white flashes.
I am building a cross-platform app using jQueryMobile and Phonegap. Currently using jQM 1.1.0 and Phonegap 1.6.1.
The page transition function sometimes just seems to break down when the user clicks a button or list item that links to another page in the app.
<a href="#page2">
This kind of link is what the whole app is made of. But depending on god knows what, sometimes when you click a link the app stalls. External links will still be followed, and buttons that don't trigger any page changing work fine. But anything with href and $.mobile.changePage seems to be broken.
This problem occurs in iPad Simulator and iPhone Simulator, not in Chrome. It seems to have something to do with the type of page transition specified (i.e. fade or slide or flip etc). Some transitions seem to cause problems, sometimes it seems to be the lack of a specified transition that is the cause, and sometimes neither of those explanations have any traction.
Before I add a whole bunch of code, I'm interested if anyone has similar experiences.
I'm writing a web app for the iPad using HTML5 and SenchaTouch. The app uses cache manifest to function offline. Once it has been added in the home screen and opened without Safari, it will refresh itself every time it is opened, even if just navigating to the home screen and back. The desired behavior is to leave the app, do something else, and then come back to the app with everything untouched.
An example of a similar app that displays the same (undesired) behavior can be found here: http://ignitedmediadesign.com/WebApp/index.html
I've read that using a cache manifest should have solved this problem on iPhone ( http://www.stevesouders.com/blog/2011/06/28/lack-of-caching-for-iphone-home-screen-apps/ ), but doesn't seem to have done the trick for either iPhone or iPad.
Is there another way to fix this? Is there some secret to cache manifest files that stops this that I may have missed?
I'm under the impression this is simply the nature of the "home screen" web apps that operate outside of normal Safari. I have an app that operates just fine in Safari with some minimal state saving, but the blasted non-Safari version refreshes every time. EDIT: Even the showcased O’Reilly example that uses a cache manifest reloads every time when added to the home screen.
You may want to look into creating "routes" (URL fragments) that point to a controller/action pair. Look into the MVC PhoneGap example (If not using PhoneGap, you can scroll past all of that stuff and implement your own data model and store). Also see this Sencha Touch MVC tutorial.
Also, most of the rendered sencha touch components seem to maintain state between changes of the active item. For example. I have a main TabPanel that contains all sub panels. When switching between tabs on the main TabPanel's TabBar, each sub panel maintains its rendering, unless I've set a listener or controller action to do otherwise.
Hope this helps.