有个问题, 我试图回到先前的视图, 并分享一些数据到返回到的框架。 数据将是日期和时间, 我想将数据发送到文本字段 。
例如,我调用日期 * 返回日期 和文本 字段 I 调用日期 * 时间 。 视图称为 * PickDateTime 和 subjectEventsP2 。
如果你需要更多的信息 只要问我,我会补充它 如果我能让你更容易 帮助我。
我使用Xcode4.2。
有个问题, 我试图回到先前的视图, 并分享一些数据到返回到的框架。 数据将是日期和时间, 我想将数据发送到文本字段 。
例如,我调用日期 * 返回日期 和文本 字段 I 调用日期 * 时间 。 视图称为 * PickDateTime 和 subjectEventsP2 。
如果你需要更多的信息 只要问我,我会补充它 如果我能让你更容易 帮助我。
我使用Xcode4.2。
好,很简单,你应该使用一个代表... 如果我理解正确,你是在第二个视图, 当你回到主视图时, 你想把数据从第二个视图 发回主视图,对不对?
因此,在你的第二种观点中,在.h档案中,在接口的顶端,你将宣布该代表:
@class nameOfTheViewController;
@protocol nameOfTheViewControllerDelegate <NSObject>
-(void)methodNameOfDelegateReturning:(NSString *)string otherString:(NSString *)string2;
@end
在您的界面,仍然在.h, 你会创建一个参考 这个代表像:
@property(nonatomic, weak) id <nameOfTheViewControllerDelegate> delegate;
之后,在你的.m 名字 The View Gunator 你会做:
@synthesize delegate = _delegate;
在您以 TheView Conserenter 文件的名称创建了您的代表文件之后, 您将调用您刚刚创建的代表方法, 具体位置和当您想要返回到前一个视图时, 填满您想要传递的参数... 当然, 在您的主 View Control 中, 您的 PrepareForSegue 方法中, 您将创建一个名为 TheTheView Conserenter 类的例子, 并设置其代表 proeprty 给自己..., 这样才能实现这一点, 在您的主 View cutor 中. h 您必须符合名为“ TheView ConcentDelgate 协议 ” 。
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