iOS:在 View 之间传递数据(数组值或字符串)？

Question

如何使用以下代码将 NSString 值传递给“webwhatsnew” subview 。谢谢

-(IBAction)Whatsnew {
  NSString *myString =[URL absoluteString]; 
  // how can I pass this value to "webwhatsnew" subview 
  webwhatsnew = [[WebWhatsnewView alloc]initWithNibName:@"WebWhatsnewView"bundle:nil]; 
  [self.view addSubview:webwhatsnew.view];
}

Answer 1

在 WebWhatsnewView 中创建一个 NSString 属性。然后只需为其设置一个值。例子:

//WebWhatsnewView.h
...
@property (nonatomic, retain) NSString *someString;
...

-(IBAction)Whatsnew {
  NSString *myString =[URL absoluteString]; 
  webwhatsnew = [[WebWhatsnewView alloc]initWithNibName:@"WebWhatsnewView"bundle:nil]; 
  webwhatsnew.someString = myString; //if myString is a string that you want to pass
  [self.view addSubview:webwhatsnew.view];
}

希望能帮助到你

编辑

//WebWhatsnewView.m
...
@synthesize someString;
...