如何自动关闭OSX上的NSAlert？

Question

我想创建NSAlert（弹出）显示，然后自动关闭。它同样点击按钮，它显示弹出式扫描...，找到任何项目后，弹出扫描自动解除。当弹出窗口显示时，用户无法点击我的应用中的任何按钮。我怎样才能做到这一点？非常感谢。

Answer 1

下面的代码将帮助您

- (IBAction)showAlert:(id)sender { 
    //display the alert 
    self.myAlert = [NSAlert alertWithMessageText:@"Sample Test" defaultButton:@"OK" alternateButton:@"DO Nothing" otherButton:@"CANCEL" informativeTextWithFormat:@"TEST",nil]; 
    [self.myAlert beginSheetModalForWindow:[self window] 
         modalDelegate:self 
         didEndSelector:@selector(errorAlertDidEnd:returnCode:contextInfo:) 
          contextInfo:nil]; 

    NSArray *buttonArray = [self.myAlert buttons]; 
    NSLog(@"Button Arrays %@",buttonArray); 

    //Close by itself without a mouse click by the user 
    //Assuming the Default Button as the Second one "Do Nothing 
    NSButton *myBtn = [buttonArray objectAtIndex:2]; 
    [myBtn performClick:self.myAlert]; 

}