将数据从App委托传递到View Controller [英] Passing Data from App delegate to View Controller

问题描述

我需要将一个字符串从App委托传递给我的初始视图控制器，
有人能列出我最好的方法吗，我也尝试使用NS用户默认值保存和检索，但我没有锻炼得当。

I need to Pass an string from App delegate to my Initial View Controller , Can somebody listed me the best way to do it , also i tried to Save and Retrieve using NS user Defaults, but i doesn't work out properly .

推荐答案

接口：

@interface MyAppDelegate : NSObject  {
  NSString *myString;
}
@property (nonatomic, retain) NSString *myString;
...
@end

和.m文件中的你会写的App Delegate：

and in the .m file for the App Delegate you would write:

@implementation MyAppDelegate
@synthesize myString;
    myString = some string;
@end

然后，在viewcontroller.m文件中，您可以获取：

Then, in viewcontroller.m file you can fetch:

MyAppDelegate *appDelegate = (MyAppDelegate*)[[UIApplication sharedApplication] delegate];
someString = appDelegate.myString;  //..to read
appDelegate.myString = some NSString;     //..to write

这篇关于将数据从App委托传递到View Controller的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！