模態定製表不打烊

Question

我想顯示自定義模式對話框，並做了以下方法：

EncPasswordSheet是IBOutlet中NSWindow的*類型。

@implementation EncryptionPasswordSheet 
-(id)init  
{  
    return self;  
} 

- (void)showCustomDlg:(NSWindow *)window 
{  
    if (!EncPasswordSheet)  
    {   
     [NSBundle loadNibNamed: @"EncryptionPasswordDlg" owner: self]; 
    }   
    [NSApp beginSheet:EncPasswordSheet modalForWindow:window modalDelegate:nil didEndSelector:nil contextInfo:nil];  
    [NSApp runModalForWindow: EncPasswordSheet];   
    [NSApp endSheet: EncPasswordSheet];  
    [EncPasswordSheet orderOut: self];  
} 

- (IBAction)getPasswordFromSheet:(id)sender 
{ 
    password = [passwordField stringValue]; 
    [NSApp stopModal];  
} 

- (IBAction)cancelEncPasswordSheet:(id)sender  
{  
    password = nil;  
    [NSApp stopModal];   
} 

@end 

正在顯示對話框並接受輸入。在按下「ok」或「cancel」時，相應的IBAction方法正在執行並且程序繼續。問題在於對話框並未避開 - 即沒有關閉或消失。

Answer 1

我想你應該叫由你確定叫IBActions endSheet和取消按鈕，我以爲是getPasswordFromSheet和cancelEncPasswordSheet：

- (void)showCustomDlg:(NSWindow *)window { 
    if (!EncPasswordSheet) { 
     [NSBundle loadNibNamed: @"EncryptionPasswordDlg" owner: self]; 
    } 

    [NSApp beginSheet:EncPasswordSheet 
     modalForWindow:window modalDelegate:nil 
     didEndSelector:nil contextInfo:nil]; 
} 

- (IBAction)getPasswordFromSheet:(id)sender { 
    password = [passwordField stringValue]; 
    [EncPasswordSheet orderOut: self]; 
    [NSApp endSheet: EncPasswordSheet]; 
} 

- (IBAction)cancelEncPasswordSheet:(id)sender { 
    password = nil; 
    [EncPasswordSheet orderOut: self]; 
    [NSApp endSheet: EncPasswordSheet]; 
} 

Answer 2

你有沒有選中「可見在啓動」在Interface Builder的對話窗口？因爲如果我不這樣做，那麼對話框就不會作爲工作表應用，並且在完成時不關閉。試試你的原始代碼。