NSWindowController的窗口立即释放 [英] NSWindowController's window released immediately

问题描述

我试图在我的应用程序委托中使用NSWindowController打开一个窗口。
我创建了一个基本的NSWindowController和一个关联的NIB，并尝试以这种方式显示窗口：

I'm trying to open a window using a NSWindowController in my app delegate. I created a basic NSWindowController with an associated NIB and try to show the window that way:

@implementation MyAppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    // Show the main window from a separate nib
    MyWindowController * theWindowController = [[MyWindowController alloc] initWithWindowNibName:@"MyWindowController"];
    [theWindowController showWindow:self];
}
@end

$ b $ p

当我启动应用程序时，MyWindowController只显示一秒钟的时间（似乎在启动时释放）。

When I launch the app, the window of MyWindowController only appears for a fraction of second (seems to be released as soon as it launches).

使用ARC，如何强制窗口粘在一起，而不是刷新马上？我不使用NSDocuments，我想要能够同时使用这些MyWindowController。

Using ARC, how could I force the window to stick around and not be flushed right away? I do not use NSDocuments and I want to be able to use many of these MyWindowController concurrently.

推荐答案

到你的应用程序委托（或者一些其他对象，它会保持你的应用程序的生命周期）保留的WindowConroller。例如：

You need to add a property to your app delegate (or some other object that's going to stick around for the lifetime of your app) that retains theWindowConroller. For example:

@interface MyAppDelegate : NSObject

@property (strong, nonatomic) MyWindowController * windowController;

@end

然后在初始化窗口控制器时设置此属性。

Then set this property when you initialize the window controller.

@implementation MyAppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    // Show the main window from a separate nib
    self.windowController = [[MyWindowController alloc] initWithWindowNibName:@"MyWindowController"];
    [theWindowController showWindow:self];
}

@end

这篇关于NSWindowController的窗口立即释放的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！