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我試圖做一個簡單的NSTouchBar有3個級別的NSPopoverTouchBarItem，所以基本上它是這樣的：NSTouchBar多層次NSPopoverTouchBarItem
我有3 NSButton和1 NSPopoverTouchBarItem主要NSTouchbar其打開第二NSTouchbar
第二和1 NSPopoverTouchBarItem其打開第三NSTouchbar
問題是，當我嘗試打開第三個NSTouchbar，好像第二個NSTouchbar被解僱了，有時並沒有打開第三個。
此外，當打開第三個，當我們關閉，我們去的第一個NSTouchbar，而不是第二NSTouchbar
下面是代碼，應該是簡單，應該工作（我使用Xcode的觸摸欄中模擬器）
#import "Window.h"
static NSTouchBarCustomizationIdentifier TouchBarCustomizationIdentifier = @"TouchBarCustomizationIdentifier";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier1 = @"NSTouchBarItemIdentifier1";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier2 = @"NSTouchBarItemIdentifier2";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier3 = @"NSTouchBarItemIdentifier3";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier4 = @"NSTouchBarItemIdentifier4";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier4_1 = @"NSTouchBarItemIdentifier4_1";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier4_2 = @"NSTouchBarItemIdentifier4_2";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier4_3 = @"NSTouchBarItemIdentifier4_3";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier4_3_1 = @"NSTouchBarItemIdentifier4_3_1";
static NSTouchBarItemIdentifier NSTouchBarItemIdentifier4_3_2 = @"NSTouchBarItemIdentifier4_3_2";
@implementation Window
- (NSTouchBar*) makeTouchBar {
_touchBar1 = [[NSTouchBar alloc] init];
[_touchBar1 setDelegate:self];
[_touchBar1 setCustomizationIdentifier:TouchBarCustomizationIdentifier];
[_touchBar1 setDefaultItemIdentifiers:@[
NSTouchBarItemIdentifier1,
NSTouchBarItemIdentifier2,
NSTouchBarItemIdentifier3,
NSTouchBarItemIdentifier4,
]
];
[_touchBar1 setCustomizationRequiredItemIdentifiers:@[
NSTouchBarItemIdentifier1,
NSTouchBarItemIdentifier2,
NSTouchBarItemIdentifier3,
NSTouchBarItemIdentifier4,
]
];
return _touchBar1;
}
- (nullable NSTouchBarItem *)touchBar:(NSTouchBar *)touchBar makeItemForIdentifier:(NSTouchBarItemIdentifier)identifier {
if ([identifier isEqual:NSTouchBarItemIdentifier1]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH 1" target:self action:nil]];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier2]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH1" target:self action:nil]];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier3]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH1" target:self action:nil]];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier4]) {
NSPopoverTouchBarItem *customTouchBarItem = [[NSPopoverTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setCollapsedRepresentationLabel:@"OPEN TOUCH 2"];
_touchBar2 = [[NSTouchBar alloc] init];
[_touchBar2 setDelegate:self];
[_touchBar2 setCustomizationIdentifier:TouchBarCustomizationIdentifier];
[_touchBar2 setDefaultItemIdentifiers:@[
NSTouchBarItemIdentifier4_1,
NSTouchBarItemIdentifier4_2,
NSTouchBarItemIdentifier4_3,
]
];
[_touchBar2 setCustomizationRequiredItemIdentifiers:@[
NSTouchBarItemIdentifier4_1,
NSTouchBarItemIdentifier4_2,
NSTouchBarItemIdentifier4_3,
]
];
[customTouchBarItem setPopoverTouchBar:_touchBar2];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier4_1]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH 2" target:self action:nil]];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier4_2]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH 2" target:self action:nil]];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier4_3]) {
NSPopoverTouchBarItem *customTouchBarItem = [[NSPopoverTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setCollapsedRepresentationLabel:@"OPEN TOUCH 3"];
_touchBar3 = [[NSTouchBar alloc] init];
[_touchBar3 setDelegate:self];
[_touchBar3 setCustomizationIdentifier:TouchBarCustomizationIdentifier];
[_touchBar3 setDefaultItemIdentifiers:@[
NSTouchBarItemIdentifier4_3_1,
NSTouchBarItemIdentifier4_3_2,
]
];
[_touchBar3 setCustomizationRequiredItemIdentifiers:@[
NSTouchBarItemIdentifier4_3_1,
NSTouchBarItemIdentifier4_3_2,
]
];
[customTouchBarItem setPopoverTouchBar:_touchBar3];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier4_3_1]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH 3" target:self action:nil]];
return customTouchBarItem;
} else if ([identifier isEqual:NSTouchBarItemIdentifier4_3_2]) {
NSCustomTouchBarItem *customTouchBarItem = [[NSCustomTouchBarItem alloc] initWithIdentifier:identifier];
[customTouchBarItem setView:[NSButton buttonWithTitle:@"IS TOUCH 3" target:self action:nil]];
return customTouchBarItem;
}
return nil;
}
@end
這看起來像蘋果的SDK的錯誤。另一個原因是，我無法找到任何像您嘗試實現的具有兩種彈出級別的系統觸摸條。我的建議是使用像Apple [NSTouchBar目錄]（https://developer.apple.com/library/content/samplecode/NSTouchBarCatalog/Introduction/Intro.html#//apple_ref/doc/uid/TP40017550）中的Scrubber來讓更多的物品只能進入兩個級別的彈（（至少在他們修復之前）。 –