如何将value从firstviewcontroller传递给xcode中的thirdview控制器？

Question

我已经在firstviewcontroller str1中声明了一个字符串，我想在第三个控制器中获取该字符串，并在循环中使用它。

firstviewcontroller

SecondViewController *secondview=[[SecondViewController alloc]init]; 
secondview.str1=[name objectAtIndex:indexPath.row]; 
[self.navigationController pushViewController:secondview animated:YES]; 

thirdviewcontroller

if([str1 isEqualToString:@"X"]) 
    //&&[str12 isEqualToString:@"hospital"]) 

，但它似乎没有work.pls帮助理清

Answer 1

尝试这样的：

SecondViewController *secondview=[[SecondViewController alloc]]nitWithNibName:@"SecondViewController" bundle:nil]; 
secondView.str1 = @"testString"; 
[self.navigationController pushViewController:secondView animated:YES]; 

Answer 2

在prepareForSegue方法中，您可以在每个视图控制器上设置@property。您需要使用storyboard ID或将视图控制器设置为强大的@properties。

VC1：

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    if (_secondView && _secondView.yourPropertyName) 
     _secondView.yourPropertyName = @"something"; 
} 

VC2：

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    if (_thirdView && _thirdView.yourPropertyName) 
     _thirdView.yourPropertyName = self.yourPropertyName; 
}