I'm developing TV app with TOAST and in one of my menu I have a catalog with about 100 images.
If I load images like below does tizen and orsey cache them and use them later or they read those from server every time.
<div style="background-image:url(http://Mydomain/pages/4.jpg)"></div>
I can think about some other solutions like:
Add those images to TV app package (But in that case, the package size would be about 20MB)
Get them with ajax and store them locally and than use them
What is the best solution for this?
I have been working on Smarttv platforms long time. Sadly It seems best way is serve static files with app package.
Related
I note that other apps (testing on Android) like WhatsApp, etc have folders that contains images the user has used/downloaded. These folders (like WhatsAppImages) are visible in other apps (Gallery/File Explorers, etc) so you can use those files to share, delete, etc like any other file.
In my codenameone app I download image files but they cannot be seen anywhere on the local device. I understand that for security apps run in a sandbox and this may be why.
But how do these other apps make their downloaded files visible to the general file system and other apps ?
Many Thx
Codename One doesn't support that at this time but you can use native interfaces to add this as explained here for Android: How to save image in android gallery
and here for iOS: How can I save an image to the camera roll?
You can also file an RFE to add this either as a cn1lib or API.
Suppose we write a Xamarin MVC application which is deployed to a device and runs connected to the web.
If we need to update the application by downloading some images, CSS, or .js files using WCF service, for example, is that possible?
Does iOS, Android, and Windows allow you to do that?
Thanks
You can not update the app bundle itself on either iOS or Android, and presumably UWP but I am not very familiar with that platform so not sure. For iOS and Android the app bundles are signed so they can not be modified or else the signature will no longer be valid. You can, however, download anything you want and store the downloaded files in the file system. Every app does have a file system it can access to read and write from. See this Xamarin doc:
Forms:
https://developer.xamarin.com/guides/xamarin-forms/working-with/files/
You might also want to look into the PCLStorage plugin:
Xamarin Component: https://components.xamarin.com/view/pclstorage
NuGet: https://www.nuget.org/packages/PCLStorage/
Source: https://github.com/dsplaisted/PCLStorage
(I know I should paste relevant bits from links, but there is just too much to paste and would end up pasting the whole article. If above link is broken, just google "Xamarin working with files")
Note: I work for MS/Xamarin
I converted my website to an APK and it installs fine - the problem is that when trying to scroll up or down - the page sticks and the page refreshes to a page not available - the live site works perfect.
Try to use momentum scrolling. I don't know exactly what can cause your issue, but
Android 3+ and iOS 5+ implemented a new property called overflow-scrolling that enables momentum scrolling. And it works beautifully.
Look here: http://www.mobify.com/blog/beginners-guide-to-perceived-performance/
Hope that helps.
I was using a service from GoNative that packages mobile web sites into APKS - kind of a wrapper to allow mobile sites to function like apps. One of the configuration options was to use "web pool" services that cached pages to allow for faster processing - I deleted that feature and the site/app works fine.
I have set up Cordova/phonegap to work in Xcode and written a simple app in HTML and CSS and tested it on the Simulator and it works. It's just a single view app. I am trying to figure out how to turn that into a multiple view app, so that there are several views/screens that link to each other.
Do I need to write several HTML documents and link them together in XCode, or is it written in one HTML document using JavaScript?
With PhoneGap, think of it as operating a tiny web server on your device. So, you build it out like you would any other web site - with links to other pages that sit in that folder/directory or even on other servers - and it will allow that navigation. So, once you get it set up and deployed via Xcode, all you need to do is modify the html/css/js.
I have a HTML5 App and want to deploy it with Phonegap to iOS devices. The app is designed for smartphones. To make use of the iPad Screen I designed a new layout.
My idea:
Two seperate index.html files as the starting point for the app.
index.html for Smartphones
index-ipad.html for tablets
How can I make Xcode or Phonegap to load the appropriate html page when starting the app ?
Cheers
Johe
I would use one HTML file with CSS3 media queries doing the different layouts
I would start in Java. Depending on screen size it would call either the index.html or index-ipad.html. But if you're using Phonegap with proper CSS you should be able to use one index.html for both. Phonegap and CSS would do the work.
While I agree with user899641's suggestion that the device abstraction should be happening at the PG/CSS level, it's fairly trivial to modify the native PG library to do what you ask. In the case of iOS, PhoneGapDelegate.m contains a function called startPage which, as written, returns the static string index.html. You can modify this function to apply additional logic and return a different start page accordingly.