Push notifications HTML5 - html

I'm building a web app in HTML5/Phonegap targeting Android and iOS platforms. I'm using a tool that takes my HTML5 code and transforms my web app in a native application for Android or iOS. Now I would like to include in my web app push notifications so when something happens on the server, the app will trigger a native notification. What are the free solutions I might use to do this? I read about Pushwoosh and UrbanAirship but it seems both aren't free.
Thanks!

Related

Best way to distribute Cloud HTML5 App

I thought PhoneGap was a simple wrapper for HTML5, but it looks like it does in fact compile into native in some way.
I have a Cloud based, HTML5 Single Page Web application that I just want to run full screen, and distribute via an app store.
Should I just create a PhoneGap App with an InAppBrowser?
If you intend to publish an HTML5-based app in a "native" app store sucha s Google Play or Apple Store, you have 2 options:
1- Implement your own native application using a webview to show your web-based app.
2- Use some existing framework like Phonegap/Cordova even you do not use the native API. The framework will already setup everything for you to just deploy your HTML5 code.
However, if your web app is meant to be hosted remotely (i.e. not run from local files), you may encounter problems when trying to publish in the Apple Store. They have some strict rules about remote content, and about publishing apps that may not provide much more value and/or functionality than a simple web-app can.
Best.

Running HTML5 code in android app without internet connectivity?

Is it possible to have HTML5 files stored inside the .apk file of an android app and run the files on the android app without requiring internet connectivity?
Yes. If your a native Android programmer look at the WebView. http://developer.android.com/reference/android/webkit/WebView.html
If your not, you could look at things like http://cordova.apache.org/ and http://www.appcelerator.com/platform/titanium-sdk/ and others. But honestly I've never meet a dev who has a good thing to say about these for any kind of complex app.

Developing an app as a website for portability to ios and Android

I was thinking of writing a simple android app that would just contain my notes I've made for my job for my own personal reference. I figuered perhaps some of my co-workers would want to use this app too, but most of them use IPhones. I don't own any Apple products and I know nothing about developing for iOS. After some research I've decided perhaps the best approach is to develope the 'app' as a website instead, to be viewed offline. Does this approach make sense, and could I distribute such a product on an Apple device without any issues?
I'd recommend developing an offline application with PhoneGap. PhoneGap allows you to build your app once with web--standards, wrap it with PhoneGap, and then deploy it to multiple mobile platforms.

How to make PHP work with html5 when creating blackberry NATIVE app with blackberry websockets

I have a simple html5 page and it has inline php script, any suggestions on how i can create the app to make it when use with blackberry websockets.
eg. A native app that is writeen with html5.
PHP is interpreted on a server with PHP installed, not the client (your phone, a browser, etc). You won't be able to use PHP in a native app, but you can use JavaScript. If you need some interactivity with the hardware on your phone, you can take a look into frameworks like PhoneGap, or maybe even something like Sencha Touch

Native iPhone app in HTML/Javascript?

I would like to build an app that heavily relies on Google Maps. Is it possible to write a native iPhone application in HTML/Javascript ? If so, will it be accessible from the app store ? Otherwise, how could I include Google Maps in a native app ?
You will need to build a framework application in Objective-C that contains a UIWebView. You can populate the UIWebView with your HTML/Javascript.
In my opinion the better alternative is to use the MapKit framework from a native app. MapKit lets you do almost everything you can do using the full Google Maps API and I think a native app will always work better on the device than a UIWebView container app.
I have used MapKit in a few of my apps and found it easy to use with nice performance. In the linked example I embed a MkMapView in a UIScrollView in page mode. I doubt you would have an easy time implementing this with a UIWebView and I am sure it wouldn't perform as well.
Yes, it is possible to do this. There is a great opensource project called PhoneGap http://phonegap.com/ that allows you to do exactly that. Not only but alos deploy on other mobile OSs like Android, blackberry etc.
To get on the app store, you need to register as an apple developer which is about US$100. Development can only be done on a mac) Apple gives you lots of software tools including code editors and iphone simulator.
Addressing the two parts of your question:
Is it possible to write a native
iPhone application in HTML/Javascript
? If so, will it be accessible from
the app store ?
There's a framework called NimbleKit that allows you to write your app in HTML/JavaScript and then converts it to Objective-C/Cocoa for you. There are several problems with NimbleKit, though:
It costs $99.
It adds a level of indirection that increases the chance of errors.
Because you're not using the 'real thing', you're much more limited in what you can do (i.e. you can only use what they have made available to you).
Another solution is to embed a UIWebView in a native iPhone app (you'll have to use a bit of Objective-C/Cocoa to do this) and then write the rest of your app as an iPhone web app that is loaded into the UIWebView. However, I would strongly advise you not to write an iPhone web app, whether standalone or embedded in a native app. As of writing, iPhone web apps have many disadvantages, including:
They're very slow.
They have limited functionality (e.g. no device APIs).
They can't take advantage of the Cocoa-Touch framework (a serious downside).
iPhone web apps may become viable in the future, but at this point in time, I'd steer away from them and write a native iPhone app using native technologies (i.e. Objective-C/Cocoa).
Otherwise, how could I include Google
Maps in a native app ?
Use Apple's framework "MapKit". See Displaying Maps and Annotations in the iPhone Application Programming Guide, this tutorial, and this tutorial for information on how to use MapKit.
In iPhone OS 3.0 and greater apple has created a custom Cocoa Touch control that allows developers to embed Google Maps into a native app. The maps support multi-touch and you can annotate the maps with custom views, find the user's current location and do other cool stuff.
The way to do this is to build your app as a regular web app (javascript/css/html). The embed that in a native WebView. The WebView is a container for iphone apps that are meant to be web apps. These apps are sold the same way as other apps on the app store.
It's not possible to write a native iPhone app in HTML/JS, http://code.google.com/p/iphone-google-maps-component/ may be of some use, or you can use:
UIApplication *app = [UIApplication sharedApplication];
[app openURL:[[NSURL alloc] initWithString: #"http://maps.google.com/maps?g=London"]];
Please see How can I launch the Google Maps iPhone application from within my own native application? for more info.
There is also Appcelerator Titanium, which looks to be a good framework for developing iPhone and Android applications using web technologies. They gave an interesting presentation on this at C4.
However, trying to "write once, run everywhere" on mobile devices will cause you to create something that is inferior on all platforms to native applications, because you will need to design for the lowest common denominator between them.