objective-c - 在 NSPopover 中运行 NSAlert

Question

我们正在开发一个菜单栏项目应用程序，我很想编写一个 NSAlert 类别，它在 NSPopover 中显示警报，该警报出现在 NSStatusItem 下方。

到目前为止，该类别实现了以下新方法:

- (void) runAsMenuItemPopUpWithCompletionBlock:(NSAlertCompletionBlock)block {

    // Get content view of NSAlert
    NSView *alertContentView = [self.window contentView];

    // Ask the menu item to show the view as a NSPopOver
    [[GFMenuItem sharedInstance] popOverView:alertContentView];

    // (...) Handle response with callback
}

但是打开警报

NSAlert *alert = [NSAlert alertWithMessageText:@"Learn more?" defaultButton:@"Learn more" alternateButton:@"Cancel" otherButton:nil informativeTextWithFormat:@"Do you want to view detailed information?"];
[alert runAsMenuItemPopUpWithCompletionBlock:nil];

产生以下可视化效果:

问题是第三个空按钮，帮助按钮和复选框，尚未设置为显示。如果尚未设置它们，您知道如何摆脱它们吗？

Answer 1

事实证明，您可以调用[alertlayout]来触发手动布局处理。它将隐藏所有未设置显示的按钮!

更正方法:

- (void) runAsMenuItemPopUpWithCompletionBlock:(NSAlertCompletionBlock)block {

    // Trigger the layout processing and get content view of NSAlert
    [self layout];
    NSView *alertContentView = [self.window contentView];

    // Ask the menu item to show the view as a NSPopOver
    [[GFMenuItem sharedInstance] popOverView:alertContentView];

    // (...) Handle response with callback
}