From which version of iOS does the system has permission control? - ios

Which version of iOS first had the feature of managing app's permissions?

That feature was new in iOS 8 so any device running iOS 8+ is able to do that. Here's more info: Accessing the Settings app from your app in iOS 8?

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Is it possible to open IOS simulator while developing React-Native APP on Windows 10?

I am developing an application by using React-Native. My operating system is Windows 10. I want the application to be competible with both iOS and Android. I am using Expo for the development. In expo,
There are above choices, since I don't have an iOS simulator, the second choice gives an error. How can I install an iOS simulator to my computer?
As of now, you can not create a simulator inside windows but there are many browser-based iOS stimulations available you can use them.
one of them is Appetize.io here It is free for use but you have to upload your app manually. There are many other options available. read here.

How to confirm App Store will respect my minimum iOS version?

We have set the minimum version of our App to iOS 10 in the Deployment Target setting in its build target in Xcode. I want to confirm that someone running iOS 9 cannot download the app. The app is on the App Store already.
I have a device which I would like to load iOS 9 on in order to test this. I checked Xcode and I can only download iOS10 on the simulator. There are sites all over the place with .ipsw files I can download, however they are for jailbroken phones - they are not signed by Apple. I do not want to jailbreak the device. Anyway I think that would not even work as I couldn't get to the App Store anyway.
There are a few iOS device models where the maximum iOS version supported is iOS 9, such as the iPhone 4s, and equivalent vintage iPad. Apple still signs iOS re-installs on such devices. You might be able to borrow or buy a used one fairly cheaply, and use that for Deployment target testing.
There is nothing to confirm. An app with a deployment target of iOS 10 cannot under any circumstances run on iOS 9. It won’t be downloaded to an iOS 9 device. But you cannot prevent the downloading of the app in some other way (though it still cannot run on an iOS 9 device). So just believe in reality and move on.

iOS app development phonegap or xamarin on windows

I really dont get it. I see I can develop Iphone Apps with
xcode (objective-c / swing)
xamarin
phonegap
titanium appcelerator
....
But do I need a Mac even with phonegap etc. or is it possible to develop on windows with those Frameworks?
You can completely develop iOS in Mac using Xamarin with the help of Xamarin Live Player.
You can debug,develop and deploy without any help of mac but to sign and release the app you will still need a Apple system
You need an actual iOS device to fully develop and test all of the app's device features before submitting to the App Store. More here.

How to set the maximum supported iOS version in AppStore

How I could notify the user of AppStore that only iOS 7.xx is supported by my application?
Is it possible to set the maximum iOS version for the application in AppStore?
The application failed on iOS 8 and I can't fix it so far...
You cannot set the maximum version for an app on the App Store. You can just add to the description of your app that it won't work on iOS and hope that the users look at the description. But you should really work on fixing your app for iOS 8 and release a new version of the app as soon as possible.

Make app not support iOS 7

If for managerial reasons I'm am developing an app that has not been designed with iOS7 in mind(the notion of supporting iOS7 wasn't apparent until I upgraded to XCode5 and tested the app in the simulator running iOS7), can I restrict my app to devices not running iOS7?
I know it's possible to change the app to support iOS 7 but we're already in the testing phase and it's not my decision how the app is made.
You can compile your application using Xcode 4, which will mark the binary to run in a compatibility mode on an iOS 7 device.
I'm assuming you want the app to still work on an iOS 7 device, just not with an iOS 7 user interface.
No, you can not restrict your app to devices not running iOS7.
You could check if the device is running with iOS 7 and through some kinde of exception or show an error message. Of course you won't get it through apples revision.
But it might work if you only deliver it to local devices.

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