类名为:LanguageController
- .h文件:
- #import <Foundation/Foundation.h>
- #define LANGUAGE_STATE_NOTIFICATION @"LANGUAGE_STATE_NOTIFICATION"
- #define LANGUAGE_STATE @"LANGUAGE_STATE"
- @protocol LanguageControllerDelegateNSObject>
- @required
- @optional
- -(void)updateLanguage;
- @end
- @interface LanguageController : NSObject{
- idLanguageControllerDelegate> _delegate;
- }
- @property(nonatomic,assign) id> delegate;
- +(LanguageController *)languageController;
- -(void)setDelegate:(id>)delegate;
- @end
- .m文件:
- #import "LanguageController.h"
- static LanguageController *languageController =nil;
- @implementation LanguageController
- @synthesize delegate = _delegate;
- +(LanguageController *)languageController
- {
- @synchronized(self){
- if (languageController == nil) {
- languageController = [[LanguageController alloc] init];
- }
- }
- return languageController;
- }
- -(void)setDelegate:(id>)delegate{
- _delegate = delegate;
- [[NSNotificationCenterdefaultCenter] addobserver:selfselector:@selector(languageChanged:)name:LANGUAGE_STATE_NOTIFICATIONobject:nil];
- }
- -(void) languageChanged:(id) sender{
- if(_delegate !=nil && [_delegate respondsToSelector:@selector(updateLanguage)]) {
- [_delegateupdateLanguage];
- }
- }
- - (void)dealloc {
- [[NSNotificationCenterdefaultCenter] removeObserver:selfname:LANGUAGE_STATE_NOTIFICATIONobject:nil];
- _delegate=nil;
- [superdealloc];
- }
- @end
将以上两个文件加入到工程后,使用时就非常方便了,首先在更改语言的按钮事件中添加语言切换通知语句:
[[NSNotificationCenter defaultCenter] postNotificationName:LANGUAGE_STATE_NOTIFICATION object:nil];
然后在所有需要刷新页面的viewController的viewDidLoad函数中加入设置代理的语句:
[LanguageController languageController].delegate = self;
再在这些viewController类中实现LanguageControllerDelegate的方法-(void)updateLanguage;所有因语言切换而需要更新或刷新的工作都放着这个代理方法中实现即可。
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。