Android iOS 挖挖挖: 多語系

2017年8月21日星期一

iOS Swift Multiple Language Localizable 切換多語系

不是認手機語系, 而是直接在app上切換語系

1.在Main.storyboard 拉三個按鈕與一個Label

2.與ViewController.swift建立連接

import UIKit

class ViewController: UIViewController {
    
    @IBOutlet weak var labMessage: UILabel!
    

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func btnEnglish(_ sender: UIButton) {
        UserDefaults.standard.set("Base", forKey: "lang") //儲存語系為基本
        setMessage()
    }
    
    @IBAction func btnJapan(_ sender: UIButton) {
        UserDefaults.standard.set("ja", forKey: "lang") //儲存語系為日文
        setMessage()
    }
    
    @IBAction func btnChinses(_ sender: UIButton) {
        UserDefaults.standard.set("zh-Hant", forKey: "lang") //儲存語系為繁體中文
        setMessage()
    }
    
    func setMessage() {
        labMessage.text = "A Song of Ice and Fire".localized //使用擴展功能 localized
    }

}

extension String{

    var localized: String {
                
        let lang = UserDefaults.standard.string(forKey: "lang")
        
        let bundle = Bundle(path: Bundle.main.path(forResource: lang, ofType: "lproj")!)

        return NSLocalizedString(self, tableName: nil, bundle: bundle!, value: "", comment: "")
        
    }
}

3.建立Localizable.strings檔案
New File... -> 找到 String File -> 輸入Localizable.strings -> Create