获取NSStatusItem框架更改的通知? [英] Get Notification of NSStatusItem frame change?

问题描述

在使用NSStatusItem并具有如下自定义视图的应用中:

In an app that uses a NSStatusItem with a custom view like this:

...在以下情况下如何获取通知

... how can you get notifications when:

1. 由于全屏应用程序，状态栏被隐藏
2. 状态项是否因为添加/删除/调整了其他项而移动位置?

当项目更改位置时，将自定义视图移动到正确位置都是必需的.

Both are necessary to move the custom view to the right position when the item changes places.

推荐答案

有一种方法-[NSStatusItem setView:].当您为状态项设置自定义视图时，该视图会自动插入到特殊的状态栏窗口中.您可以使用方法-[NSView window]访问该窗口以观察其NSWindowDidMoveNotification:

There is a method -[NSStatusItem setView:]. When you set a custom view for your status item, this view is automatically inserted into a special status bar window. And you can access that window using a method -[NSView window] to observe its NSWindowDidMoveNotification:

- (void)applicationDidFinishLaunching:(NSNotification *)notification
{
    NSStatusItem *statusItem = [self newStatusItem];
    NSView *statusItemView = [self newStatusItemView];
    statusItem.view = statusItemView;

    NSNotificationCenter *dnc = [NSNotificationCenter defaultCenter];
    [dnc addObserver:self selector:@selector(statusBarDidMove:)
                name:NSWindowDidMoveNotification object:statusItemView.window];
}

- (void)statusBarDidMove:(NSNotification *)note
{
    NSWindow *window = note.object;
    NSLog(@"%@", NSStringFromRect(window.frame)); // i.e. {{1159, 900}, {24, 22}}
}

每当状态栏变为可见或隐藏以及移动图标时，您都会收到通知.这是您更新弹出面板位置的机会.

You will receive the notification every time the status bar becomes visible or hidden and when your icon is moved. This is your chance to update a location of your popup panel.

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