第一次進入應用獲取本機語言.1.如果本機語言在軟件實現語言列表裡.則默認選中本機語言，但是用戶還是可以選擇其它語言.2.如果本機語言不在軟件實現語言列表裡,則默認選中英語.用戶還是可以選擇其它語言.

所有要更換語言的controller裡注冊通知.當用戶選擇了一個語言後發送語言修改的通知.控制器收到語言修改通知後，對需要修改語言的控制進行重新設置.

/** 初始化語言 */

- (void)initLanguage{

//1. 獲取系統支持的語言

_languages = [NSMutableArrayarrayWithCapacity:5];

NSURL *url = [[NSBundlemainBundle] URLForResource:kLanguagePlistwithExtension:kTypePlist];

NSDictionary *dic = [NSDictionarydictionaryWithContentsOfURL:url];

//2 生成語言對象

[dicenumerateKeysAndObjectsUsingBlock:^(id key,id obj, BOOL *stop) {

DYCXLanguage *language = [DYCXLanguagelanguageWithKey:key AndValue:obj];

[_languagesaddObject:language];

}];

//3. 獲取用戶保存的語言[0] = 簡體中文, [1] = zh-Hans;

NSString *userLanguageValue = [selfgetUserLanguage];

if (!userLanguageValue) {

userLanguageValue =kDefaultUserLanguage;

//3.1 獲取系統語言

NSString * localLanguage = [selfgetLocalLanguageValue];

//3.2. 確定默認語言

for (DYCXLanguage *languagein _languages) {

//3.3.如果軟件語言包涵系統語言默認為系統語言,如果不包涵默認設置為英語

if ([localLanguage isEqualToString:language.languageValue]) {

userLanguageValue = localLanguage;

}

}

}

//4. 設置當前語言

for (DYCXLanguage *languagein _languages) {

if ([userLanguageValue isEqualToString:language.languageValue]) {

language.used =YES;

_userLanguage = language;

break;

}

}

}

- (NSString *)getLocalLanguageValue{

NSUserDefaults *defaults = [NSUserDefaultsstandardUserDefaults];

NSArray *languages = [defaults objectForKey:@"AppleLanguages"];

return [languages objectAtIndex:0];

}

#pragma mark - 語言更改,重新加載

- (void)reloadStringWithLanguage{

[_confirm setTitle:[NSString localizedWithString:@"dialog_positive_key"] forState:UIControlStateNormal];

_selectLanguage.text = [NSString localizedWithString:@"select_language_key"];

if ([self.delegate respondsToSelector:@selector(onLanguageChange)]) {

[self.delegate onLanguageChange];

}

}

#pragma mark - NSString 的分類,加載對應目錄裡的string

+ (NSString *)localizedWithString:(NSString *)key{

NSString *area = [DYCXConfig sharedDYCXConfig].userLanguage.languageValue;

if (!area) {

area = kDefaultUserLanguage;

}

NSString *table = [NSString stringWithFormat:@"%@.lproj/Localizable", area];

NSString *localizedString = [[NSBundle mainBundle] localizedStringForKey:(key) value:nil table:(table)];

NSAssert(localizedString, @"localized error, table = %@, key = %@", table, key);

return localizedString;

}