How to build APK (signed) from hybrid app made in Framework7 - build

I've experience in building native android applications. But I'm completely new to hybrid application development and Would like to use Framework7.
I'm starting to use it. I don't know how to build the project and get an install-able file (or for distribution in playstore).
Any help is appreciated.

Cordova is a good way to start.
When I used to develop Hybrid apps, Cordova was the way to generate APKs.
I really enjoyed it, since it has a lot of Plugins, like FireBase Cloud Messaging Plugin to receive notifications within your hybrid App. It's more than a simple WebView App.
Apache Cordova is an open-source mobile development framework. It allows you to use standard web technologies - HTML5, CSS3, and JavaScript for cross-platform development. Applications execute within wrappers targeted to each platform, and rely on standards-compliant API bindings to access each device's capabilities such as sensors, data, network status, etc.
Use Apache Cordova if you are:
a mobile developer and want to extend an application across more than
one platform, without having to re-implement it with each platform's
language and tool set.
a web developer and want to deploy a web app that's packaged for
distribution in various app store portals.
a mobile developer interested in mixing native application components
with a WebView (special browser window) that can access device-level
APIs, or if you want to develop a plugin interface between native and
WebView components.
Here are all the steps needed to start with Cordova https://cordova.apache.org/docs/en/latest/guide/cli/index.html
Also, I used to follow these steps to generate a signed APK so it's possible to launch it on Google Play.
How do I put my cordova application on the android play store?

Related

Do GCP or AWS support C++ and GUI app development?

I am interested in developing web apps using the following technologies on the cloud:
1) C++
2) A GUI tool that can be called from C++ (such as wxWidgets)
I have checked out GCP (Google Cloud Platform) and AWS for these 2 technologies.
In general, I have found that these 2 PaaS sites support the following technologies for developing web apps:Java, .NET, PHP, node.js, Python, Ruby, Go.
Therefore I'd like to ask if either of these PaaS sites supports C++ development including GUI apps built using C++?
I haven't used AWS myself but I can provide some insight on GCP.
In short, C++ is not supported on the native runtime environments provided on App Engine (which is the PaaS solution of GCP). You can see this answer for more details on this.
However, there are some workarounds available you could try to see if those fit your needs. Firstly you could make use of the App Engine Flex custom runtime environments where you will be able to run in an environment defined by a Dockerfile which will allow you to use your own runtime environment. You can refer to this quickstart guide which goes over the steps required to use custom runtimes. Make sure that your C++ app that will reside inside the docker container works as a service that is up and running continuously serving incoming traffic through HTTP otherwise you might end up stumbling with the same problem described in this Github issue.
Alternatively, I found this article that goes over the steps to implement an architectural pattern for invoking legacy code on App Engine.

New web application technology

We're about to start a new project and I've been looking at some of the new web technologies. We want to build a RESTful api which a client can access. To date we've been using python with django/flask to build the api and using jquery for the front end.
I've read quite a bit on javascript frameworks such as emberjs and angular, as well as nodejs solutions like express, meteor and derby. I really like the idea that a site should 'auto update' when the model changes.I'm aware that there are some libraries like gevent which can help facilitate socket level communication, but it seems to be more of a patch than an elegant solution.
Ideally, I don't want to give up a proven technology, ie writing server code in python (or php,ruby whatever) for building my whole app on nodejs. Having a RESTful API is important since we want our services to be open and accessible.
Would it be a bad idea to have 2 servers and 1 client? 1 traditional api server communicating with a javascript framework on the client. Then also run a nodejs server alongside the api server which can somehow talk to the api and if it finds updates, passes it along to the client.
We want to build a RESTful api which a client can access.
Ideally, I don't want to give up a proven technology, ie writing server code in python (or php,ruby whatever) for building my whole app on nodejs.
Then you should probably go with Rails and Ember.js. I'll quote eviltrout (co-founder of discourse) which is build on ember and rails:
One amazing side effect of a rich client side app is you end up with a battle tested API. Our app has consumed our own API since day one, so we know it works.
If we want to create a native client for Android or iOS, it would be a lot easier because we already speak JSON fluently. If people want to build services that use Discourse, they won’t have to result to screen scraping. It’s a huge win for us and the developers that use our platform. 1
However you should keep in mind that ember is as of to date still a very young framework (rc3 v1.0.0).
I don't know what sort of application you are building (in respect to why you would want to use node) How to decide when to use Node.js?

Blackberry what SDK and language are used

I am new in Blackberry. Can anyone help me out for following queries?
Which SDK is used in Blackberry?
In what language are Blackberry applications developed?
Can we call webservices through Blackberry applications?
Blackberry applications are written in Java. They support Java ME as well as some additional blackberry specific APIs. Check out http://na.blackberry.com/eng/developers/javaappdev/overview.jsp
As for calling a web service, yes you can do that as well. Check out the Rapid Application development tutorial at: http://na.blackberry.com/eng/developers/rapidappdev/
As heavyd said you can use the Rapid Application Development for accessing web services.
I've used the Visual Studio plugin before but this doesn't allow you as much access to the API as using the standard JDE plugin for Eclipse or the Blackberrys Java Development Environment (at least when I used it). It all depends on what you want to do, whether it's whip up a quick app or create a fully customised sweet looking application that'll take a little longer.
If you don't decide to go down the RAD route you can use a 3rd party library like KSOAP2, or, the way I do it, is use the Sun Wireless Toolkit (WTK) to create Stubs for you're web service methods which you can then call in your application. I've used this method for a .NET web service and it's pretty straightforward.

Django Projects as Desktop applications : how to?

How to make Django projects packaged as desktop applications?
I found some tutorials, but is there any solution as DjangoKit , for Linux and Windows?
List of related tutorials :
Deploying a Django app on the desktop
Django application as a stand-alone desktop application
This project started when I needed to
distribute a self contained user
installable Windows demo of a Django
application
dbuilder.py
Edit: Another alternative is Super Zippy, it takes a Python package and its pure Python dependencies and transforms them all into a single executable file.
You might want to look into Appcelerator's (link) Titanium Desktop for developing web apps on the desktop.
It's fully cross platform, Linux, Mac OSX, Windows.
It's supports running Python, Ruby, and JavaScript code in your application all concurrently interacting with one anther in one application. It's pretty sweet.
(Full disclosure, I'm the founder of ToDesktop. I think this is a helpful answer though)
If your Django app is already deployed as a web app then you can wrap the web app in Electron.
If the web app does not need to be distributed to users (i.e.. you don't need an installer or code signing) then Nativefier is great for that. It's free and open-source. I made a Nativefier guide here.
If you're distributing to users then you'll probably want an installer and code signing and auto-updates for Electron. ToDesktop will do all that for you without any coding or configuration.
There's a comparison of the two here.

UI and platform choices for developing desktop widgets

I've been asked to build 'widgets' that let users of a web application install a desktop, or web-based widget which will provide:
Notifications of new content.
Personalized access to key performance indicators
I'm looking for some information to inform our requirements and design discussions.
On the desktop you can target the Vista Sidebar, or on OS X there is the Dashboard, as well as others. From the web perspective you can target iGoogle and others. If I was to start by developing for the widget framework that had the greatest number of users, which would I choose? Does anyone provide statistics on the number of users?
The client would prefer to provide a richer experience for end users and I think this could be achieved using a desktop widget framework. However there would be some questions around the number of users that we can hit with any single framework (eg. sidebar). What technology or framework could I target that gives me cross-platform compatibility? Should we embed Flash?
Rather than live within a widget framework, I was going to suggest the creation of a standalone application. Are there any frameworks that help facilitate the creation of widget-like applications?
Target platforms:
Windows (Windows XP and newer)
Apple (OS X 10.4 and newer)
Linux (nice to have)
You can put a glance on Adobe Air.
It allows a cross-platform development in Flash/Flex or HTML/JS.