[Cocoa]_[多语言翻译]

Cocoa内置多语言翻译，相对其它平台要方便得多。

1.首先创建一个strings文件，命名为Localizable.strings.

2.选中新建的Localizable.strings文件，在窗口右边点击Localize...，弹出的窗口点击"Localize"按钮确认。

如下图：

3.在如下位置添加其它语言，我们这里只添加简体中文演示

4.两个string文件要像如下编辑

5.对字符串翻译的代码：

#define AppLanguage @"TestLanguage"#define CustomLocalizedString(key, comment) \[[NSBundle bundleWithPath:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"%@",[[NSUserDefaults standardUserDefaults] objectForKey:AppLanguage]] ofType:@"lproj"]] localizedStringForKey:(key) value:@"" table:nil]

6.代码演示：

-(void) doTranslation{    NSString *currentLanguage = [[NSUserDefaults standardUserDefaults]objectForKey:AppLanguage];    NSLog(@"%@",<span style="font-family: Menlo;">currentLanguage</span>);    [engField setStringValue:CustomLocalizedString(@"English", nil)];        [chinaField setStringValue:CustomLocalizedString(@"Chinese", nil)];   }-(IBAction)onEnglish:(id)sender{     [[NSUserDefaults standardUserDefaults] setObject:@"en" forKey:AppLanguage];    [self doTranslation];}-(IBAction)onChinese:(id)sender{    [[NSUserDefaults standardUserDefaults] setObject:@"zh-Hans" forKey:AppLanguage];    [self doTranslation];   }