问题
I have an app that that I am wanting to change languages inside the app and this works fine with the localize.strings, but this code is not triggering the main.strings files.
The below is the code used in the settingsLanguageVC
import UIKit
let AppLanguageKey = "AppLanguage"
let AppLanguageDefaultValue = "en"
var appLanguage: String {
get {
if let language = NSUserDefaults.standardUserDefaults().stringForKey(AppLanguageKey) {
return language
} else {
NSUserDefaults.standardUserDefaults().setValue(AppLanguageDefaultValue, forKey: AppLanguageKey)
return AppLanguageDefaultValue
}
}
set(value) {
NSUserDefaults.standardUserDefaults().setValue((value), forKey: AppLanguageKey)
}
}
class ViewController: UIViewController {
Here is the code used in the stringsExtenstion.swift
import Foundation
extension String {
var localizeString: String {
return localizeString(appLanguage)
}
var localizeStringUsingSystemLang: String {
return NSLocalizedString(self, comment: "")
}
func localizeString(lang:String?) -> String {
if let lang = lang {
if let path = NSBundle.mainBundle().pathForResource(lang, ofType: "lproj") {
let bundle = NSBundle(path: path)
return NSLocalizedString(self, tableName: nil, bundle: bundle!, value: "", comment: "")
}
}
return localizeStringUsingSystemLang
}
}
回答1:
Try this code:
TabBarController.swift
import UIKit
class TabBarController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
setTabViewControllerParams(0, tabBarItemTitle: "ONE".localizeString, navigationItemTitle: "ONE".localizeString)
setTabViewControllerParams(1, tabBarItemTitle: "TWO".localizeString, navigationItemTitle: "TWO".localizeString)
}
func setTabViewControllerParams(index: Int, tabBarItemTitle: String, navigationItemTitle: String) {
if let tabBarItems = tabBar.items {
if index < tabBarItems.count {
tabBarItems[index].title = tabBarItemTitle
}
}
if let viewControllers = viewControllers {
if index < viewControllers.count {
if let navigationController = viewControllers[index] as? UINavigationController {
if navigationController.viewControllers.count > 0 {
let viewController = navigationController.viewControllers[0]
viewController.navigationItem.title = navigationItemTitle
}
}
}
}
}
}
Localizable.strings (Russian)
"ONE" = "один";
"TWO" = "два";
Localizable.strings (English)
"ONE" = "one";
"TWO" = "two";
Localizable.strings (French)
"ONE" = "un";
"DEUX" = "deux";
Main.storyboard
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15G31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="nUR-Hp-pCa">
<dependencies>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
</dependencies>
<scenes>
<!--View Controller-->
<scene sceneID="CyN-qL-pwy">
<objects>
<viewController id="pYF-J2-lCH" sceneMemberID="viewController">
<layoutGuides>
<viewControllerLayoutGuide type="top" id="7sj-ZO-H6Z"/>
<viewControllerLayoutGuide type="bottom" id="z8T-yS-yZZ"/>
</layoutGuides>
<view key="view" contentMode="scaleToFill" id="fUH-or-StF">
<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
</view>
<navigationItem key="navigationItem" id="t7h-zd-rWW"/>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="yti-8g-g3h" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="1837" y="905"/>
</scene>
<!--View Controller-->
<scene sceneID="qSl-mU-Ice">
<objects>
<viewController id="6og-vK-uE7" sceneMemberID="viewController">
<layoutGuides>
<viewControllerLayoutGuide type="top" id="8pT-ac-TqX"/>
<viewControllerLayoutGuide type="bottom" id="xne-JP-NAW"/>
</layoutGuides>
<view key="view" contentMode="scaleToFill" id="cy0-Zm-dW4">
<rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
</view>
<navigationItem key="navigationItem" id="Yme-f2-Ybt"/>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="sj3-Kd-b6r" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="1837" y="244"/>
</scene>
<!--Tab Bar Controller-->
<scene sceneID="hYk-it-5Yg">
<objects>
<tabBarController id="nUR-Hp-pCa" customClass="TabBarController" customModule="stackoverflow_39242174" customModuleProvider="target" sceneMemberID="viewController">
<tabBar key="tabBar" contentMode="scaleToFill" id="ZIu-fS-Ven">
<rect key="frame" x="0.0" y="0.0" width="320" height="49"/>
<autoresizingMask key="autoresizingMask"/>
<color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/>
</tabBar>
<connections>
<segue destination="9ZZ-tm-gKt" kind="relationship" relationship="viewControllers" id="tba-rV-XaM"/>
<segue destination="QV0-6J-vKg" kind="relationship" relationship="viewControllers" id="MnC-tA-o6W"/>
</connections>
</tabBarController>
<placeholder placeholderIdentifier="IBFirstResponder" id="5R8-Ki-Qv1" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="205" y="575"/>
</scene>
<!--Item 1-->
<scene sceneID="5eX-TM-S1f">
<objects>
<navigationController automaticallyAdjustsScrollViewInsets="NO" id="9ZZ-tm-gKt" sceneMemberID="viewController">
<tabBarItem key="tabBarItem" title="Item 1" id="6fX-a0-rTY"/>
<toolbarItems/>
<navigationBar key="navigationBar" contentMode="scaleToFill" id="LaV-6J-YLJ">
<rect key="frame" x="0.0" y="0.0" width="320" height="44"/>
<autoresizingMask key="autoresizingMask"/>
</navigationBar>
<nil name="viewControllers"/>
<connections>
<segue destination="6og-vK-uE7" kind="relationship" relationship="rootViewController" id="H4K-P1-t3E"/>
</connections>
</navigationController>
<placeholder placeholderIdentifier="IBFirstResponder" id="n57-4l-GAt" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="1025" y="244"/>
</scene>
<!--Item 2-->
<scene sceneID="nqO-69-Jkp">
<objects>
<navigationController automaticallyAdjustsScrollViewInsets="NO" id="QV0-6J-vKg" sceneMemberID="viewController">
<tabBarItem key="tabBarItem" title="Item 2" id="YyT-40-7qX"/>
<toolbarItems/>
<navigationBar key="navigationBar" contentMode="scaleToFill" id="ukb-bm-c5h">
<rect key="frame" x="0.0" y="0.0" width="320" height="44"/>
<autoresizingMask key="autoresizingMask"/>
</navigationBar>
<nil name="viewControllers"/>
<connections>
<segue destination="pYF-J2-lCH" kind="relationship" relationship="rootViewController" id="gRY-up-TJA"/>
</connections>
</navigationController>
<placeholder placeholderIdentifier="IBFirstResponder" id="geq-VQ-SVO" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="1025" y="905"/>
</scene>
</scenes>
</document>
来源：https://stackoverflow.com/questions/39242174/switching-language-in-running-app-for-view-elements-in-storyboard