鍵盤使UIView緩慢出現時？

Question

我有一個動作，允許我提出一個ModalViewController並顯示UITextField作爲第一個響應者，問題是當這個ModalViewController會出現它需要一點時間，原因是鍵盤，當我抓住代碼viewDidAppear鍵盤需要一點時間才能顯示出來，所以我怎麼才能讓UIViewController快速出現？

- (IBAction)goToModalViewController 
{  
    ModalSearchViewController *msvc = [[ModalSearchViewController alloc] init]; 
    self.msvc.context = context; 
    self.msvc.delegate = self; 
    [self.msvc setModalTransitionStyle:UIModalTransitionStyleCrossDissolve ];                                                                                      
    [self presentModalViewController:msvc animated:YES]; 
} 

的ModalViewController的viewWillAppear中：

- (void)viewWillAppear:(BOOL)animated 
{ 
    [super viewWillAppear:YES]; 

    [findTextField becomeFirstResponder]; 
} 

Answer 1

嘗試這樣的viewWillAppear。

- (void)viewWillAppear:(BOOL)animated 
{ 
    [super viewWillAppear:animated]; 

    //[findTextField becomeFirstResponder]; 
    [findTextField performSelector:@selector(becomeFirstResponder) withObject:nil afterDelay:0.3]; 
}