Right now my app just displays the temperature in Fahrenheit. I would like it so that if the user in their settings (General > Language & Region > Temperature Unit) has it set to Celsius my app would then precede to show that. Sadly I cant think of a way to fix this bug... It seems that I am just stuck on Fahrenheit. Does anyone have any suggestions? Thanks everyone :)
Here you go, I am not sure if there is a way to know which temperature system the user prefers, but there is a way to know if he use the metric system (Celsius) or imperial (Fahrenheit).
let locale = Locale.current
let isMetric = locale.usesMetricSystem
if isMetric {
// Use Celsius
} else {
// Use Fahrenheit
}
Related
I want to release my app in only 2 country and i want to do 2 different functionality for both country.
For example.
ViewController1 functionality is different in Jamaica.
ViewController1 functionality is different in Kenya.
Different functionality means content is different, or input forms are different.
Is it possible? if yes then please refer some document.
Thanks in advance
You should have a screen that allows user to select their country, after that, store selected country in our app (by UserDefault or Keychain, etc...).
Based on the selected country then you can switch logic/layout to adapt the requirement above
some notes about App Store:
1) language should / must be selected by user on Prefs, NOT in Apps.
Chances Apple will refuse apps not following above logic.
2) You could test current language / Zone using code (see below for language)
BUT I think Apple can refuse as you use a different behaviour
3) if really you need it, You can load a different controller using Storyboards (I suggest using different storyboards AND lod them at runtime using segues and "*.soryboard" as in:
func ViewControllerFromStoryboardWith( name: String ) -> UIViewController {
// we use an identifier equal to filename for now.
let storyboard = UIStoryboard(name: name, bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: name) as UIViewController
return vc
}
// test lang:
func currHWLanguage()->String{
let defs : UserDefaults = UserDefaults.standard
let languages : NSArray = defs.object(forKey: "AppleLanguages") as! NSArray
let current = languages[0] as! String
// since 9.0 we get en-US etc.. so cut to 2:
let result = (current as NSString).substring(to: 2)
#if DEBUG
// force to IT as a bug in simulator
// return "IT"
#endif
return result.uppercased()
//NSLog("%#", current)
}
This is a problem many applications are trying to solve. Basically, you have the following options:
Let the user choose. This is the safest option if one application contains two different configuration.
Try to detect location of the user. Language/Locale is unsafe because many people will have English (or different) locale set up. Very unsafe. You shouldn't ask for GPS location for this. The safest option is to create a server request and check the location using the IP address. A bit complicated and won't work if a VPN is used (e.g. antivirus apps create VPNs).
Create two different apps. In the end, this is the best option. Add a second application target to your project and release two separate apps with separate configuration.
I want to know in my app (by code) in which app store my user is (like england / france / spain ect).
I already read that we can do this with the locale :
https://developer.apple.com/documentation/foundation/nslocale/1643060-countrycode
But I would like to do it with the Apple Store. For legal purpose I don't want to display the same content for an european than for an american.
Has someone already done it ? Thanks !
From iOS13 SKStorefront class property countryCode can be used to get three-letter code representing the country associated with the App Store storefront.
For iOS version below 13 only viable solution was to get priceLocale from SKProduct.
You can't restrict IAP(so you don't have information about the Apple Store used) for specific country.
What you can do is disable/enable items by checking country ID.
there are different way for check it, for me the best is by checking user carrier ID.
For example:
func checkCellularNumber() -> Bool {
let networkInfo = CTTelephonyNetworkInfo()
guard let info = networkInfo.subscriberCellularProvider else {return false}
if let carrier = info.isoCountryCode {
print("Carrier code = \(carrier)");
return true
}
return false
}
If you're on iOS 13+, This will give you the 3 letter country code for the store:
import StoreKit
let country = SKPaymentQueue.default().storefront?.countryCode
More information on it's usage can be found in the SKStoreFront documentation.
UPDATE:
Occasionally, this method returns nil, which is why storefront is an optional. So it's not 100% reliable. I was using with thousands of users, and it was working 95% of the time. I'm not entirely sure under what circumstances it is nil however.
My app changes the language at runtime and advises the user to restart the app. I do it like this:
typealias LanguageLocaleType = (language: String?, locale: String?, title: String)
let elements: [LanguageLocaleType] = [
(nil, nil, "System Default"),
("en", "en_US", "English"),
("ar", "ar_SA", "Arabic"),
]
//...func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)...
let element = elements[indexPath.row]
guard let language = element.language else {
// How to really reset app back to OS language/locale???
UserDefaults.standard.removeObject(forKey: "AppleLanguages")
UserDefaults.standard.removeObject(forKey: "AppleLocale")
return
}
UserDefaults.standard.set([language], forKey: "AppleLanguages")
if let locale = element.locale, !locale.isEmpty,
Locale.current.identifier != locale,
!Locale.current.identifier.hasPrefix("\(language)_") {
UserDefaults.standard.set(locale, forKey: "AppleLocale")
}
I want to offer to set languages in a list with the right one selected, one of which being offered it to set language back to System Default. However, there's no way to find the OS-level language and locale that I could find. Since after I mess around with setting the UserDefaults, Bundle.main.preferredLocalizations is not reliable and do not match the system default (event when I remove the key from the User Default).
Is there a way to get the OS-level language and locale instead of the app-level?
You should be able to get currently selected OS language like this.
let language = NSLocale.preferredLanguages[0]
if this is not what you are looking for, refer to this answer
https://stackoverflow.com/a/30750120/809821
I will recommend you to use this library from Cocoa pods.
In your Podfile add this line:
pod 'Localize-Swift', '~> 1.7'
An then install your pods using this command:
pod install
Then if you don't have Localizable.strings, for example Localizable.strings (English) file add this lines.
"LD" = "Loading ...";
"CAMP" = "Campus";
"MAP" = "MAP";
The first word is like your TAG and the next word is your value .
Then in your ViewController you can use your string like this.
Example of use:
let progressHUD = ProgressHUD(text: "LD".localized())
let progressHUD = ProgressHUD(text: "CAMP".localized())
let progressHUD = ProgressHUD(text: "MAP".localized())
And that is all.
I hope this help.
I found an answer which seems to do something similar, by playing with the Bundle language files of your app. As in setting the proper one.
While you state that playing with Bundle properties seems to fiddle with your use case, I'd look into saving the setted language with Core Data, inside an app file, or inside and XML (.plist). You could set up a checking method in didFinishWithOptions which checks the presence of this variable then runs the language prompt if absent or leaves as is if present (adding a check to make sure the right language is set would be wise). Since this does not alter the Settings-set language, you'd always have a quick reference point outside of your app through NSLocale to switch back to it with ease if the user so chooses.
Here's the post
Disclaimer 1 : i haven't tested this, but it seems like a plausible, and Apple-Tolerated thing to do.
Disclaimer 2 : as the OP in the link states, and as some have mentioned here, changing app language is not recommended by Apple. Notably due to NSLocale keys, and how frequently Swift is updated which could lead to your code being unuseable or requiring massive overhaul.. As i mentioned in a comment above, i'd reconsider this use-case sadly :(
In reference to your question above you can either as stated above create your own bundle or use a prebuilt class like the following:https://github.com/mumensh/iOS-Localization
I'm working on an iOS text to speech app and trying to add an option to use the Alex voice, which is new for iOS 9. I need to determine whether or not the user has downloaded the Alex voice in Settings -> Accessibility. I can't seem to find out how to do this.
if ([AVSpeechSynthesisVoice voiceWithIdentifier:AVSpeechSynthesisVoiceIdentifierAlex] == "Not Found" ) {
// Do something...
}
The reason is the other language voices that are standard, play back at a certain rate, different from the Alex voice. So I have a working app, but if the user hasn't downloaded the voice, iOS automatically defaults to a basic voice, but it plays back at the incorrect rate. If I can detect the voice hasn't been downloaded, I can compensate for the difference and / or advise the user.
OK, so I guess I was overthinking this and thought it was more complicated. The solution was simple.
if (![AVSpeechSynthesisVoice voiceWithIdentifier:AVSpeechSynthesisVoiceIdentifierAlex]) {
// Normalize the speech rate since the user hasn't downloaded the voice and/or trigger a notification that they need to go into settings and download the voice.
}
Thanks to everyone who looked at this and to #CeceXX for the edit. Hope this helps someone else.
Here's one way to do it. Let's stick with Alex as an example:
- (void)checkForAlex {
// is Alex installed?
BOOL alexInstalled = NO;
NSArray *voices = [AVSpeechSynthesisVoice speechVoices];
for (id voiceName in voices) {
if ([[voiceName valueForKey:#"name"] isEqualToString:#"Alex"]) {
alexInstalled = YES;
}
}
// react accordingly
if (alexInstalled) {
NSLog(#"Alex is installed on this device.");
} else {
NSLog(#"Alex is not installed on this device.");
}
}
This method loops through all installed voices and queries each voice's name. If Alex is among them, he's installed.
Other values you can query are "language" (returns a language code like en-US) and quality (1 = standard, 2 = enhanced).
I am trying to decide if the users Region/Locale settings validates the use of Metric values (in this case if kg or lb should be appended).
I am running 3.2 on my iPad and on the simulator(Xcode 3.2.4).
I have tried out a few different Region settings but I simply can not make it return NO for NSLocaleUsesMetricSystem
NSLocale *locale = [NSLocale systemLocale];
BOOL usesMetric = [[locale objectForKey:NSLocaleUsesMetricSystem] boolValue];
NSLog(#"The system is Metric: %#\n", (usesMetric ? #"YES" : #"NO"));
This even happens for language set to English and region set to United States on both the simulator and on the actual device.
I also tried NSLocaleMeasurementSystem and it too always returns "Metric", never "U.S.".
How will I go about deciding if I should use Metric or not?
Thanks for any help given:)
...could I be so lucky that the whole world changed to metric while I was sleeping:)
Try currentLocale instead of systemLocale
Had the same problem, until I realized, that UK officially uses metric system. I have always thought that they still use imperial, so I tested with UK.
As soon as I started to test US locale, NSLocaleUsesMetricSystem started to return "NO" as expected.
Hope this helps.