What pre-requisite knowledge is required for developing android apps, Iphone etc? - new-operator

I am looking forward to start a mobile application development business and wish a to have direct knowledge of the technologies that run behind the cool apps. Being new to the programming / development world...pls suggest if it is better to learn .Net or Java before learning about Android SDK, iOS SDK etc?

well if your goal is android development you should learn java. if you want to do windows phone 7 .net would be the way to go.

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Xamarin Forms for Windows Desktop app?

I have a need to create a desktop application that can run on Windows machines (Windows 7, 8, 10 and Windows Server). I understand I can use Classic WPF, but prefer to use Xamarin Forms.
Does XF support Windows Desktop apps? If so, are there any gotchas to be aware of?
The next release of Xamarin Forms, Xamarin Forms 3, is going to add full support for desktop apps on Windows, Mac OS and Linux. The MacOS support is in preview now, but the Windows support is still in development.
As I understand it, the plan is to use WPF for the Windows support, so your solution would include a WPF project in addition to each of the other platform specific projects. That will allow development of traditional desktop Windows apps, rather than UWP type apps.
The hope/assumption here is that, because these are WPF apps they should therefore be able to run on versions of Windows that don't support UWP apps - Windows 7 and Server 2008 for example.
There's more on what's coming in Xamarin Forms 3 on the Xamarin Blog here, and also in the Microsoft Build 2017 talk by David Ortinau.
I was at a talk by Xamarin TSP Michael Sivers last night and he mentioned that there are discussions ongoing about a XAML standard that could be adopted by both Xamarin and WPF which makes a lot of sense in the context of Xamarin forms apps on WPF.
on Windows, Xamarin Forms supports UWP apps only.

Can we develop windows desktop apps using Devextreme

I have developed applications for Android and iOS using DevExtreme framework.
Can we develop windows desktop apps using Devextreme?
If yes please provide guidelines or steps to get started.
Please help on this.
Are you looking for something like this?
https://www.devexpress.com/Support/Center/Question/Details/T135296
Yes, you can do it. I suppose you use Visual Studio to develop windows apps. If so, the DevExtreme Multi-Channel project template supports WinJS app.
Just create a new Multi-Channel app:
Then, you will be able to select WinJS project template:
The DevExtreme documentation contains some information about WinJS development.
Also, I suppose, you can use Electron. Unfortunately, I have no experience with this tool. And there is one restriction here: Electron supports Windows 7 and later.

Basic cross platform app using Xamarin

i'm newbie in Xamarin. am download all components and i don't know how to develop cross platform app for iOS, android and windows.
if u have any tutorial step to step app development. please help me.
Here it is the official guides, they are pretty much helpful for basic development, you will have to use Xamarin.iOS and Xamarin.Android to develop some specific thing more related to the platform.

How to make Windows Phone 7 Prism project?

I'm new to Prism framework and Windows Phone 7, but I'm familiar with Silverlight. I want to use Prism framework to architect my project. I found this link talks about patterns & practices for WP7. However it's seems to be bit complicated, can someone share the WP7 project basic architecture. It will be much appreciated.
You can start with the project template from http://bindableapplicationb.codeplex.com/releases/view/80041

Development for different mobile platforms on Mac

I'm developing for iPhone mainly but wonder for what other mobile platform I can develop on my Mac? Info about any mobile platforms (Symbian, Maemo, Win-mobile, Android, Bada etc) is appreciated.
For Android, of course. Only need to install Eclipse with Android SDK.
For Symbian, from what I have heard as well.
With Windows Mobile could be more complicated. Usually you need Visual Studio with Compact Framework, which as you can guess are only available for Windows.

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