I'm looking to cache HTML pages inside an application that uses UIWebView.
Is there a framework that will allow me to do this and if not what method would you recommend?
On the server side these files are being seen as PHP so I'd just be caching whatever the file gives back out.
I used RNCachingURLProtocol , a way to do drop-in offline caching for UIWebView
Reference:
http://robnapier.net/blog/offline-uiwebview-nsurlprotocol-588
Related
I have an UIWebView which loads sites that made in HTML5. A manifest is implemented too. So my question is can I use the HTML5 AppCache or do I have to develope it by myself?
This post tells me that the UIWebView can't use the HTML5 AppCache. Is that correct?
It can be done, but you're limited to only about 5MB of cache storage. You build a .manifest file which tells UIWebView which files to cache. You should read your indicated post for further information.
I have a site which uses microsoft mvc 3 on the server side, jQuery Mobile on the client side and I want to combine it with PhoneGap and produce executes for Android and iOS.
Is it possible?
How?
Thanks
Yes, it is possible.
If you must use Phonegap, there are a couple of things to do:
First, you must create a project corresponding to each platform , following these instructions. Once you do that, you basically copy all the client side code (js, html, css) to the www folder of your project. This is one of the reasons, the app could load faster, since it's reading its resources from the local filesystem, and not receiving them from an http connection each time.
Second, you must find a way to provide your server side data to your app. If you are already using REST services or RPC methods to populate your website, then that's done, but if not, you must start by building them, and then calling them from your client (through ajax calls from jQUery most likely), and then rendering them through javascript (you can use the multiple templating libraries out there or just plain javascript, I recommend the latter only if the UI updates are minimal).
As you can see, the second part requires quite a little bit more work. Especially if you haven't built web services before.
The other option ,which does not require phonega/cordova is to use an embedded webview. Then you wouldn't have to do anything. It would work similarly to a browser (Loading the remote URL of your site), with the added advantage of being inside and android/ios app, and you could add other views or communicate with the embedded webview using native code. If you are planning to load html files from the filesystem and not from your server, you would have to do the same thing you have to do with phonegap.
It happened to me, if you have a web app depending on server code I would go with a WebView based app, and not a Cordova app.
It's really simple to create those webviews apps for Android or IPhone.
Here you have an example for building a webview based app on android
Here you have an example for building a webview based app on IOS
Hope it helps.
If you want to reuse your site you'll need a webview that browses it.
Phonegap wouldn't be needed if you use this approach, but the application will not be as responsive as a native app, and the IPhone moderators may reject your app for that reason (it happened to me).
Another approach would be that you recreate your site as a pure Javascript application and only communicate with your servers to execute some REST Services. In this case Apache Cordova makes sense.
I am struggling to get some performance in my MVC application.I am loading a partial page (popup) which is taking hardly 500ms. But each time the popup loads it also downloads 2 jQuery files as well.
is it possible to use the jQuery from cache or from parent page?
I have attached the image in red which shows 2 additional request to server.
In order to improve the performance you can try with the following approaches:
see if your application server supports GZip and configure the application/server to return the responses always archived in Gzip
Use minified version of JQuery
there are also Packing libraries where you can pack all the imported resources, such as CSS files and JS files, and the browser will do only 1 request per resource type. For instance, in Java we have a library called packtag.
In general, I recommend you using Google Chrome browser and its performance analyzer. It will give you good hints.
In the Bundle config use this code
BundleTable.EnableOptimizations = true;
and also indclude both files in single bundle.
Does the popup use an iframe or does it's content just get added to the DOM of the current page?
If it gets added to the current page you could try just adding the script references to the parent page instead. It might not always be the best idea if the parent page has no need for those two files, but if the parent page also uses the jQuery validation then the popup will be able to use the parent's reference to the script file.
For an iframe I'd suggest looking at Gzip and minification to make the scripts load faster.
I want to build a simple site with MVC but then render the "pages" and corresponding "assets" (js, css, images, etc) to what one might call a "static site".
In other words, I don't want to deploy to an IIS server that supports MVC. I simply want to build the site in MVC then somehow parse those pages into static html/css/etc files and upload the site to a regular LAMP host.
Is there an easy way to automate this? NuGet package? Binary? MVC extension like maybe a handler add-on that can render out the static site in a single pass?
About 10 years back, I used to download whole websites for offline use using HTTrack Website Copier. May be you could download your own website which gives you nice hierarchy of your static web pages. If you think all your webpages are reachable through the homepage links, menu links etc then you can download most of your website. Basically you can google for web crawlers/ offline browsers/website downloaders etc. and run them to get your job done.
Alternatively if you know the pattern of urls, you could give it to download manager to download them. Not sure if it works with your website, but I do it sometimes.
HTH
If your site depends on a database or some other dynamic source it will be close to impossible to dump all possible combinations of pages into static files. If on the other hand your site is pretty much static, saving the rendered HTML/JS/CSS source into files and uploading it to a LAMP server won't be too hard.
You may wanna look at Pretzel, a .Net static site generator.
Update: Apparently it doesn't work on ASP.Net projects: Issue #123. It only supports Razor language for authoring content pages.
If the reason for doing this is performance related why not just use output caching and the like, that way the pages will be extremely fast (you could set the cache timeout to a very long period of time) and you don't need to run some tool to do the conversion and have to store your html separate to your source code.
Of course you will still need to run IIS/.net
You have three options:
Create your website using plain html, css, jquery and images. You can use Visual Studio Code as IDE to create the files. One issue might be to manage common header/footer for your website. But you can solve it by injecting html header/footer using jquery.
Use a CMS (content management system) like Umbraco to host your static site. Umbraco indexes and caches pages to improve performance. You have great control on what to publish on your website etc.
Create the website using .Net + MVC and use tools like HTTrack to download a static copy of the website. You can even automate the process using commands and triggering it after every deployment or build etc.
I'd like to load content (HTML / CSS, Javascript - all files packed in a zip-file) into my application folder and runs it in an UIWebView. I guess this is possible, however I'm not sure if Apple allows it.
So Is the dynamic loading and storing of HTML pages generally allowed?
Thanks a lot.
Yes you can. Loading of web pages that way is fine as far as I know. I am working on a project that uses this zip archive tool to unpack the zip. It is a object oriented C wrapper on minizip
http://code.google.com/p/ziparchive/source/browse/trunk/ZipArchive.h