Android app with HTML5 - android

I want to create a Android Application.
Altough I want to use HTML5 for creating that application.
Later on I even want to get the application to multiple platforms like for Apple.
I have tried Eclipse but couldn't get it to work.
When I create a new "Project > Web > Dynamic Web Project" I can't export this into a Android Application.
PhoneGap looks interesting.
Although I'm not sure how you can create a .apk (for android) there.
Or should this work together with Eclipse?
Could anybody give me a headstart?
What Application should I use to make a HTML application?
How do I create a .apk file?
Thanks in advance.

If you really want to dive right into developing with Phonegap, you can try out Telerik's AppBuilder (http://www.telerik.com/appbuilder). The demo project uses KendoUI Mobile (which I can also recommend) is comprehensive enough for anyone. As far as I recall you can use it for free for up to 2 projects.
There is also Intel's XDK (http://xdk-software.intel.com/), which is completely free - but the simulator and deployment features aren't as far developed as Telerik AppBuilder's are.
I strongly recommend AGAINST doing it the "real way" with eclipse/xcode if you have no prior experience with developing native android/iOS apps.

Start with the following project:
http://code.google.com/p/html5webview/
This will give you a good start. You can download it and import it into eclipse.

Phonegap does create an APK.
Essentially what Phonegap does is present a WebView and a simple API for calling native methods on the respective platforms. This allows you to write the same app and deploy it on multiple platforms with minimal or no changes. The majority of what you would do in Phonegap is set up the projects to pull in the cross-platform libraries.
The major limitations come from lack of access to native UI components. As you progress in app development you may find that it's a significant limitation. I rarely build HTML5-based UIs anymore, and instead go with native apps.
There are other cross-platform frameworks out there as well. Here's an article describing some pros and cons of each:
http://www.developereconomics.com/pros-cons-top-5-cross-platform-tools/

Related

Cross-platform advice Android / iOS / Windows

I'm maintaining a plethora of apps for one of my clients all of which have native projects for each of the three main platforms. The apps are relatively simple in functionality. My client wants to always take advantage of the latest features in each platform for marketing opportunities. They also want to appear to be a native app (responsive, not laggy). I haven't followed cross-platform development very much lately, so that's why I'm reaching out to SO.
My initial idea is to write a C++ library that has all the functionality shared by the three platforms. Then, for each platform, I'll write some network, file access, and UI-code that connects the abstract library code to the concrete platform.
Of course, this is exactly what cross-platform systems aim to do. Would it be a waste of my time to write the above myself when this has already been done by platforms like PhoneGap? My concern is that I would be dependent on a third-party. If I write the code myself, I have full control, and I will always have access to the latest features.
Hope to get some pro's and con's.
Thanks!
Yet a third option (after Facebook's React Native and Microsoft's Xamarin) is Google's new Flutter and as the other answers suggests "then writing the Windows app purely natively". BTW, React Native does have Windows support the lack of which in Flutter could be a plus or a minus depending on how you look at it.
Have you considered using React Native for iOS and Android, then writing the Windows app purely natively?
There are tons of articles out there about pros and cons for React Native.
PhoneGap is just a web, written in HTML, CSS and JavaScript. React Native actually renders native components for iOS/Android.
There is also Xamarin. It supports multiple platforms and uses c#. The new features from the native languages all work great.

Converting android app to ios

I have one simple question, that is can I convert my android .apk app into ios using any software? If yes, then please give me the name of that software. If any alternative method for that please guide me.
Google has a tool to convert the back-end, nothing for front-end though
http://www.xda-developers.com/google-tool-helps-developers-port-android-apps-to-ios/
There is a new startup that clains to convert the APK to IOS.
It's called MechDome.
The goal is very simple and attractable:
Reduce time to market by eliminating cross-platform development. Automatically convert your existing Android apps to high-fidelity, native iOS apps.
There is nothing out there that would convert apk into ios app. To my knowledge there is also nothing out there that could translate android code to IOS. The operation is simply too complex for a simple tool to manage.
However, there are tools you could use to make your apps (developed by you) work across multiple platforms. I'm sure there are more, but here are 2 of them I found in minutes (look into them if you are interested): Apportable, Phonegap (discontinued as of 2020/03. It was made obsolete by ProgressiveWebApps - PWA).
In past decade or so WebApps have been picking up for anything that is not too graphically demanding as they can run on anything that has a Web Browser. With this style devs pretty much open their website in a platform-specific executable and it looks like an app.
As for your existing app depending on complexity of your software you have to rewrite from a little to a lot of code to adapt to IOS APIs.
In short: No. Unless your app is build on multiplatform framework, converting means manual adaptation.
There is no known way to convert an android app to iOS. MechDome which is a Developer Tool that Automatically Converts Android Apps into iOS Apps seems to have stopped as of 30/03/2021. link
However if it is your plan to launch android and iOS app from one coding project, use Flutter which allows you to launch on both platforms simultaneously.
Flutter is Google’s mobile UI framework that provides a fast and expressive way for developers to build native apps on both iOS & Android, using a single codebase.
Get started here link

How to wrap existing iOS application with PhoneGap

I already have working iPhone & Android application. We are planning to add more features/pages and we're also planing to extend the application with PhoneGap to support multiple mobile platform.
How I can utilize PhoneGap with my existing iPhone application? Whether PhoneGap is plugable, is there any other idea otherthan rewriting the entire Application with PhoneGap?
I don't think this is possible. Your best bet is to re-write the application using PhoneGap.
You could use PhoneGap with a webView, in your existing project.
See this link.
I've never personally used phonegap, but couldnt you just add in the phonegap sdk, and just use a webview in any activities/view controllers that you add? That way you can keep all your old ones the same, but add new ones that will be the same for ios and android.
As per my knowledge, what you're asking for is not possible or at least -- not reasonable.
If I'm getting you right, you have written a native mobile applications for iOS (in ObjC) and Android (in Java) whereas Phonegap applications are HTML5-based applications embed in their own container.
These are two completely different worlds with no (useful or profitable) way of mixing them.
You can consider some tricks (with webview, as mentioned in other answers) to include new code, written in Phonegap in your existing native applications. But, there is no chance, you can reuse native code (i.e. current functionality) inside Phonegap.
The only thing, I can think of is, that you can consider proting existing applications as native plugins and using inside Phonegap. But, you will require a lot of work to change existing code to fit plugins' standards and I'm not sure, if rewriting entire application from scratch in Phonegap wouldn't be better solution, as in terms of time and money spent on this process.

Hybrid apps for iOS/Android/Windows 8

I hope this question is specific enough. I have a client for whom I made an iOS native app and an Android native app (same app, different platform). It's a fixed pixel design (I made this work for Android somehow:) and it works on iPad, iPhone and most Android devices (with some letterboxing). Now I am asked to write the same app for the Windows store and they want me to use HTML and JavaScript. My question is, when I use HTML and JavaScript, would it be "easy" for me to use this code into some sort of hybrid solution (PhoneGap, etc)? The app doesn't need much complicated functionality but does need to support push notifications on iOS and it needs to be able to play videos, preferably HLS. Any advice on what the best hybrid solution and do hybrid solutions allow you to build for Windows 8?
I'm a cross-platform developer working on PhoneGap and Titanium Appcelerator. The correct answer is "It depends". Currently the state of cross-platform development is not very recommendable. Yes, you can write plugins for PhoneGap and it does support windows phone but you will have a ridiculously hard time getting them to communicate with each other properly. I learnt this from experience.
If it was a hacking/hobby project to further the cause then I would say go for it but for a time-bound client project like yours, I would recommend against cross-platform solutions and go native instead. Plus native always gives considerably better control, speed and ease of development. You will probably develop it faster in native than cross platform anyway. I've played around with windows SDK and it seems easy to use and well-built with good documentation and you can use C# which is similar to Java since you have already used it on android.
You can also build windows 8 desktop apps using html and javascript natively but this isn't present in windows phone 8 yet.
As I mentioned, If you don't need too many native controls, then you can go cross-platform. For your requirements, it can be done. If you have already developed android and ios apps and only need windows app now, then going native would be easier. But if you have to make all 3 then you can go cross platform if your requirements are restricted to what you mention. Here's a good quora thread that discusses the pro's and cons:
http://www.quora.com/Is-Titanium-good-for-developing-iPhone-apps
Take a look on Xamarin
Main idea - they brings real native code for all platforms.
They have instruments to compile C# code that it can be used at all platforms
For example you should create UI in XCode (for iPhone) and use ModoDevelop to create DAL/BLL, then you can re-use C# code base over all other platforms
They have cross-platform iPhone/Android/WP7/W8 samples on GitHub
Also see Q&A on Stackoverflow tagged Xamaring
We are starting to build multiple apps for multiple clients both in IOS and Android native platforms. The problem is we are going completely native which is taking too much time.
I would like to look at the linked in method (http://arstechnica.com/information-technology/2012/10/a-behind-the-scenes-look-at-linkedins-mobile-engineering/) which is a more hybrid approach using HTML and native code.
The problem is I don't think Phonegap is that good - good for prototyping but maybe not for full versions of apps as it can be a bit slow and a bit buggy.
I would like to look into doing a model where we create like 65% HTML and 35% native to that device (like linked in)
Would anyone have any suggestions for this? Would people say we need a massive development team to pull such an approach off?
I welcome thought:)
Thanks

Code generation for iOS and android

I'm searching for a framework to create apps for both Android and iOS from one codebase. I'm aware of Appcelarator and PhoneGap etc. However I need a different kind of product. I'm not sure if it exists. I can't find it here or on google.
We are a team of Android and iOS developers and aren't afraid to build natively. What I want is a tool to help me jumpstart development. Preferably a tool where I can create the basic UI and Models and generate native code to use as basis for further development.
Does such a tool exist?
Have you seen Mono??
iOS
Note: Make sure you following the instructions on the MonoTouch website re installation
Development tools (Free): XCode + Interface Builder (http://developer.apple.com/devcenter/ios)
MonoTouch ($399USD): http://monotouch.net/
Register for developer program/app store ($99USD): Register
Android
Note: Make sure you following the instructions on the MonoDroid website re installation
Development tools (Free): Java JDK, Android SDK
MonoDroid (public beta): monodroid-download
Register for developer program/market ($25USD): Register
Don’t forget for the iOS component you’re going to need to go buy a Mac to use.
Have a look at LiveCode 5 from RunRev.
http://www.runrev.com/
Have you checked out DAPP? I like it quite a bit.
http://dapp.kerofrog.com.au/
Yes you can Generate the code for both Android/ios and many more languages using the Tool Swagger
Please Check the tool,this tool gives the basic UI and Models and generate native code to just like your Requirement.
But You have to right the Swaggger Specification file(it will be on Json or Yaml) for that. And after Writing Swagger Specification file You can downlaod the code for Android/ios and other language as well. So kindly follow the document of swagger. You will get clear idea about that.
Here i list down usefull links of swagger :
https://swagger.io/
https://github.com/swagger-api/swagger-codegen
https://editor.swagger.io/
https://swagger.io/docs/
There's a tool called Genexus for Smart Devices, which is a code generator that supports iOS, Android, Blackberry and Windows 8.
However, you need to learn the tool, and I've found it useful only for simple CRUD apps. It does enable extremely fast development of said apps, it's a good fit for simple LOB apps. I've tried it and deployed to Android (haven't tested on iOS or other platforms).
http://www.genexus.com/SD/mobile-application-development?en
If you're experienced with iOS and Android, you'll probably get frustrated though (and I'm sure the code it generates isn't pretty).
I've used the generator for desktop and web .NET and Java, and works reasonably well (with those caveats), so I'm sure the Smart Devices generator will continue evolving.
Take a look at Flutter, from their docs:
Flutter transforms the app development process. Build, test, and deploy beautiful mobile, web, desktop, and embedded apps from a single codebase.

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