摘要:
一.UIPickerView1.UIPickerView的常见属性// 数据源(用来告诉UIPickerView有多少列多少行)@property(nonatomic,assign) id dataSource;// 代理(用来告诉UIPickerView每1列的每1行显示什么内容,监听UIPick... 阅读全文
摘要:
1.通知中心添加监听器- (void)addObserver:(id)observer selector:(SEL)aSelector name:(NSString *)aName object:(id)anObject;对象(observer)监听对象(anObject)发送的什么(aName)通... 阅读全文