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iOS 应用程序自定义本地化设置

发布于 2024-12-19 13:28:49 字数 79 浏览 2 评论 0原文

我将制作一个多语言 iPad 应用程序，我希望用户在其中选择首选语言。所以我的问题是，如何在运行时更改应用程序语言？我不想更改 iPad 语言。

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抱着落日 2024-12-26 13:28:49

Apple 指南不建议这样做。

我的解决方案（用户应该手动重新启动应用程序；要“动态”处理语言切换，您应该重新加载包括 XIB 在内的所有资源）是：

// Use "nil" to fallback to system settings
void loadCustomLocalization(NSString * locCode) {
  NSString * appleLanguages = @"AppleLanguages";
  if (locCode) {
    [[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObject:locCode] forKey:appleLanguages];
  } else {
    [[NSUserDefaults standardUserDefaults] removeObjectForKey:appleLanguages];
  }
  [[NSUserDefaults standardUserDefaults] synchronize];
}

void loadLocalization() {
  const int result = [[[NSUserDefaults standardUserDefaults] stringForKey:@"language"] intValue];
  NSString * language = 0;
  switch (result) {
    case 1: language = @"ru"; break;
    case 2: language = @"en"; break;
  }
  loadCustomLocalization(language);
}

int main(int argc, char *argv[]) {
  loadLocalization();
  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  int retVal = UIApplicationMain(argc, argv, nil, nil);
  [pool release];
  return retVal;
}

This is not recommended by Apple guidelines.

My solution (user should restart app manually; to handle the language switch "on fly" you should reload all resources including XIBs) is:

// Use "nil" to fallback to system settings
void loadCustomLocalization(NSString * locCode) {
  NSString * appleLanguages = @"AppleLanguages";
  if (locCode) {
    [[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObject:locCode] forKey:appleLanguages];
  } else {
    [[NSUserDefaults standardUserDefaults] removeObjectForKey:appleLanguages];
  }
  [[NSUserDefaults standardUserDefaults] synchronize];
}

void loadLocalization() {
  const int result = [[[NSUserDefaults standardUserDefaults] stringForKey:@"language"] intValue];
  NSString * language = 0;
  switch (result) {
    case 1: language = @"ru"; break;
    case 2: language = @"en"; break;
  }
  loadCustomLocalization(language);
}

int main(int argc, char *argv[]) {
  loadLocalization();
  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  int retVal = UIApplicationMain(argc, argv, nil, nil);
  [pool release];
  return retVal;
}

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