Is nativescript running on Android 4 mobiles? - nativescript

Does nativescript work on Android 4?

No it doesn't. As of today the earliest API level it supports is 17 / v4.2.
I think there are less than 1% of devices still running Android 4. Most apps / SDKs today do not support versions below 6 or 5.

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Do I need Xcode 7 and Swift 2.0 to update my app

I have an UI issue in my Swift 1 (Xcode 6, iOS 7.1) app on devices running iOS9. I've tried to convert my app to Xcode 7 and Swift 2.0 but I'm running in a lot of issues here.
To give my customers a quick fix until I've figured out whats wrong I was wondering if I can download and install Xcode 6 (the version I build and uploaded the app last time) correct the UI issue (I know what to do) and upload the app again.
In a nutshell: Will Apple deny an app update with an old Xcode/Swift version?
The “Submit Your Apps” page currently (as of 2015-09-23) says
If your app still depends on Xcode 6, you'll need to keep a partition or external hard drive with OS X Yosemite installed in order to submit from Xcode 6.
This clearly implies that you can still submit apps with Xcode 6 (and therefore with the iOS 8 SDK).

Can I write Apps in Swift 1 (For iOS 7 and 8) using Xcode 7?

Can I write Apps in Swift 1 (For iOS 7 and 8) using Xcode 7? Or will compiled Swift 2 run on iOS 7-9?
No, you can not.
Each Version of Xcode includes only one version of the Swift Compiler. Using a newer Xcode Version will force you to adopt the new Swift Syntax.
There is an automatic converter available under Edit -> Convert -> To Latest Swift Syntax.
The iOS Version requirements are not affected by the use of Swift 2 (or Xcode 7). Apps built with Xcode 7 and written in Swift 2 can run on iOS 7 (same conditions/restrictions as before).
There will be errors if you attempt to run swift 1 in xcode 7, and yes, swift 2 will run on IOS 7-9

Does Apple reject apps build with Xcode 5? (13.10.2014)

I have to update an app build with Xcode 5 for iOS 7.
Unfortunately, there's not enough time and money to migrate it to iOS 8 by now.
Will Apple reject the app, when i'm trying to publish it to the AppStore?
Thank you!
If you mean Xcode 5.1.1, no they will not reject those apps. You can submit using Xcode 5.1.1 or higher. It says that in the binary section of iTunes Connect. I have used Xcode 5.1.1 to submit multiple apps. I archived in Xcode 6 then validated and submitted with Xcode 5.1.1 since validation/submission has been very buggy for me in Xcode 6.
In answer to your question, we submitted an application update built with xCode 5 recently, and it went through just fine.
Apple have previously sent an announcement to developers giving advance notice of any change in the minimum required xCode version.
On 13th Jan 2014, they announced that apps had to be built with xCode 5 and iOS 7 ready as of 1st Feb 2014. We can assume that they will follow a similar schedule for iOS 8 - if they actually fix all the bugs in it...

IOS5 IOS 5 (9A334) iPhone 4 XCode 4.2 4D199 Lion 10.7.2 Instruments 4.2 (4233) Not Working

Can not seem to get an iPhone 4 with IOS 5 connecting to instruments. Tried from XCODE Profile and Attaching to Process with no luck. Anyone else seen this?
Same setup works fine with IOS 4.2.1
But, does the same thing (does not work) with IOS 4.3.5 (8L1)
Build target is 4.2, no change if build target changes...
Need to do some run time performance analysis.
Have to hard stop the Instruments tool after every run for some reason. Then will work fine from XCODE / PRODUCT / PROFILE. At least on this setup.

Issue with Xcode 4.1 & iOS 5

So basically i have upgraded to iOS5 and xcode 4.2 but after a little playing around i found out you can't submit apps to the app store with it (even if the apps are set to 4.3 or lower)
So i reinstalled xcode 4.1 (xcode did some back up thing so i still have 4.2) and started work on application building and such like. Submitted application to app store / testing on device everything running fine.
But suddenly (well just now) xcode has said:
The version of iOS does not match any of the versions
of iOS supported for development with this installation of the iOS
SDK. Please restore the device to a version of the OS listed below, or
update to the latest version of the iOS SDK; which is available here.
So i can no longer test apps on my device, nor can downgrade my iPod says apple...
but what im sooo confused about is that it was all working a few hours ago.
Why can't i do it now?
Anyone know a fix?
Thank you.
Eli
Apple has apparently told testers of iOS 5 that any devices updated to that beta cannot be downgraded back to iOS 4. They will only be able to further upgrade their device and eventually install the final iOS 5 release. From Apple:
Devices updated to iOS 5 beta can not be restored to earlier versions
of iOS. Devices will be able to upgrade to future beta releases and
the final iOS 5 software.
However, I've also seen this post: http://www.jailbreakmovies.com/2011/06/08/how-to-downgrade-ios-5-back-to-ios-4-3-3-tutorial-video/ which claims to be able to restore iOS 4.3 to a device. I haven't tried it, but if you're feeling adventurous and/or desperate, you might give it a go.

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