如何在呈现为presentModalViewController之前设置ViewController的属性？

Question

我呈现视图控制器是这样的：

FBViewController *fbViewController =[[FBViewController alloc] initWithNibName:@"FBViewController" bundle:nil]; 
[email protected]"hello"; // I set the value of the property label which is the outlet 
[self presentModalViewController:fbViewController animated:YES]; 

FBViewController.h：

#import <UIKit/UIKit.h> 

@interface FBViewController : UIViewController 
@property (weak, nonatomic) IBOutlet UILabel *label; 

@end 

FBViewController.m：

... 
- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    NSLog(@"%@", self.label.text); // Here instead of "hello" i get the value which was in nib file. 

} 
... 

的问题是如何设置标签的值？

Answer 1

您可以通过检索NSString的文本分配标签modalview控制器：

FBViewController *fbViewController =[[FBViewController alloc] initWithNibName:@"FBViewController" bundle:nil]; 
[email protected]"Your Text"; 
[self presentModalViewController:fbViewController animated:YES]; 

FBViewController.h

@interface FBViewController : UIViewController { 

NSString *labeltext; 

} 

@property (nonatomic, retain) NSString *labeltext; 

，并使用视图FBViewController.m

- (void)viewDidLoad { 
    label1.text=labeltext; 
}