iphone中的導航相關問題

Question

我正在一個屏幕（即第一屏幕）到下一個屏幕（即第二個文件）中進行導航。我的代碼是在firstFile.m是：

- (IBAction)onClick:(id)sender 
{ 

secondFile* dest = [[secondFile alloc] initWithNibName:@" secondFile" bundle:nil]; 
[self.navigationController pushViewController:dest animated:YES]; 


NSString* uname = txtUserName.text; 
NSLog(@"usr name is : %@",uname); 

} 

firstScreen.h

<UIKit/UIKit.h> 

@interface nevigationViewController : UIViewController 
@property (weak, nonatomic) IBOutlet UIButton *btnNevigation; 
@property (weak, nonatomic) IBOutlet UITextField *txtUserName; 
- (IBAction)onClick:(id)sender; 

@end 

問題是，日誌打印，但導航不執行。請你能告訴我上面的代碼有什麼問題嗎？

Answer 1

只需從在 secondFile* dest = [[secondFile alloc] initWithNibName:@" secondFile" bundle:nil];

刪除空格@ 「secondFile」如果問題仍然生存，如果你不根本不需要navigationController，只需簡單地使用：

secondFile *nextView = [[secondFile alloc]initWithNibName:@"secondFile" bundle:nil]; 
    [self presentModalViewController:nextView animated:YES]; 

Answer 2

試試這個： -

- (IBAction)onClick:(id)sender 
{ 

secondFile* dest = [[secondFile alloc] initWithNibName:@"secondFile" bundle:nil]; 
[self.navigationController pushViewController:dest animated:YES]; 


NSString* uname = txtUserName.text; 
NSLog(@"usr name is : %@",uname); 

} 

希望它可以幫助你