如何在呈現爲presentModalViewController之前設置ViewController的屬性？

Question

我呈現視圖控制器是這樣的：

FBViewController *fbViewController =[[FBViewController alloc] initWithNibName:@"FBViewController" bundle:nil]; 
fbViewController.label.text=@"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. 

} 
... 

的問題是如何設置標籤的值？

Answer 1

您可以通過檢索NSString的文本分配標籤modalview控制器：

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

FBViewController.h

@interface FBViewController : UIViewController { 

NSString *labeltext; 

} 

@property (nonatomic, retain) NSString *labeltext; 

，並使用視圖FBViewController.m

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