I have a Windows machine and an iPhone and I was wondering if it's possible to run React Native on iOS easily like I can on Android. If so, how can I do that?
No, you can't.
The only way is to install a virtual machine macos on windows like VMware or VirtualBox and run Xcode from it so you could run your app on IOS.
I want to develop a application for for my company. I'm using flutter to build it for both android and IOS platform. But I have only windows machine, so I'm only able to build it for Android. Can I build(generate apk) IOS flutter apps in windows machine ?
if yes please explain it well.
You can develop the UI on android itself. However, you need OSX to run an Iphone Simulator. An alternative would be to use a virtual machine with OSX installed. It is not recommended though.
Also, for IOS the build is different. It is not as simple as generating an apk and installing it on your phone. You will need itunes and a legit account to run it.
See more here
I am writing a simple flutter app on Linux(ubuntu 20.04) using Android Studio(4.1.1). I am able to test my app on android emulators well. Could I know there is any feasibility to test my flutter application in an iOS simulator without moving to mac or connect an iOS device?
You need the mac to compile on IOS devices or use emulators, the project even running on android stuido uses the xcode compiler.
I am new to developing mobile apps and wanted to try Flutter but I use Windows. Because Flutter doesn't support Windows yet I had the idea to use a virtual machine running Linux to install Flutter. Does this work?
Also in the Flutter setup it says this:
To develop Flutter apps for iOS, you need a Mac with Xcode 7.2 or newer.
Is there a way to develop iOS apps without having a Mac?
Yes, you can develop iOS apps with Linux (or Windows) using Android Studio or Visual Studio Code. The point of Flutter is that you have one code base and can deploy to both Android and iOS. So the development phase is no problem.
In the past you could only deploy iOS apps to the App Store if you had a Mac, but there are some more options now. See the following articles:
How to sign Flutter apps for iOS automatically without a Mac
Developing and debugging Flutter apps for iOS without a Mac
How to develop and distribute iOS apps without Mac with Flutter & Codemagic
Build an iOS app without a Mac or iPhone using Flutter
To test your app on the iOS simulator, though, it is still necessary to have a Mac. However, theoretically the app should have the same behavior for most things as on an Android device, so you wouldn't necessary need to test it using the iOS simulator. I would say long term you would probably want to consider getting a Mac, but it is certainly not necessary in the beginning.
Update: In a recent app I made, my tests passed in the Android emulator but crashed in the iOS simulator. It was a normal bug and nothing specific to iOS, but for some reason the Android simulator didn't crash. So for a production app, you really do need to test it on an iOS device/simulator.
As you point in your question:
To develop Flutter apps for iOS, you need a Mac with Xcode 7.2 or newer.
You can work around by using an external service (like Travis-ci or other) to build your code for iOS. However it's not usable as a developer workflow as that can take several minutes to get the artefact.
You should check out MacOS cloud solutions like MacInCloud. There are CI/CD solution that will support it (e.g. CircleCI and BitRise) however these are not suited for development.
Services like MacInCloud allow you to remote desktop into a Mac where you could conceivably use XCode remotely.
Windows is now partially supported in the way you can edit and publish for Android but you still can't create for IOS where a mac is required (XCode).
More informations https://flutter.io/setup-windows
You can use tools like Appollo to do just that directly from Windows or Linux. Appollo is a python CLI tool.
To install Appollo run pip install appollo, then setup your developer account with Appollo (https://appollo.readthedocs.io/en/master/tutorial/2_configure_app_store_connect.html) once this is done you can start building your app with appollo build start
You can check out a few example videos here : https://www.youtube.com/channel/UCBNRrJd4UP0QQRoYF4JOEmA
I am new in phonegap development. I have installed phonegap for android development in Ubuntu and able to make app for android devices. Now i want to build app for ios. I know for this i need xcode. I want to know is it possible to install xcode in ubuntu for ios development?
No. To run Xcode you needs a Mac with a current version of OS X.