我想以編程方式設置NSTableView(我真的需要避免使用IB),並且我找到的所有示例都解釋瞭如何使用接口構建來完成此操作。我創建了一個控制器類,它實現了tableView:objectValueForTableColumn:row:和numberOfRowsInTableView方法:但他們永遠不會被調用。
我設置了table-view和scroll-view之後,我調用setDelegate:和setDataSource:與實現numberOfRowsInTableView:的控制器類相關聯。不幸的是,當我運行代碼時,它從不會調用numberOfRowsInTableView:或tableView:objectValueForTableColumn:row :.我是否需要調用除setDelegate之外的其他東西:setDataSource:完成我正在嘗試做的事情?
我在clozure-cl(包含一個可可lisp橋的lisp環境)編寫這段代碼,我相信這裏的大多數可可開發人員不太可能是lisp愛好者,所以似乎發佈代碼我不是富有成效的,但如果任何人都可以給我任何建議或鏈接到目標C代碼,完成整個過程,而不使用IB將是偉大的。以編程方式設置NSTableView(捕捉tableView:objectValueForTableColumn:行:)
編輯:
這裏有一點我Lisp代碼我會嘗試並添加註釋,使之更加明確非口齒不清Cocoa開發。
(defmethod DISPLAY-TABLE-VIEW ((Self table-view))
(with-simple-restart (cancel-pop "Stop trying to pop up ~s" Self)
(in-main-thread()
(ccl::with-autorelease-pool
;let statements are just declarations of local variables in lisp
;this one just creates the window I want to put the table-view inside
(let ((Window (make-instance 'popup-window
:lui-window Self
:with-content-rect (ns:make-ns-rect (x self) (y self) (width Self) 500)
:style-mask 3
:backing #$NSBackingStoreBuffered
:defer t)))
(setf (native-window Self) Window) ;; need to have this reference for the delegate to be in place
(setf (native-view Self) (make-instance 'popup-window-view :lui-window Self))
;; setup delegate
(setf (delegate Window) (make-instance 'popup-delegate :lui-window Self))
(#/setDelegate: Window (delegate Window))
; (#/setStyleMask: Window 1)
;here I create first a table-view then a scroll-view the an NSView and
;finally a column
(let ((table-view (#/alloc ns:ns-outline-view)))
(let ((scroll-view (#/alloc ns:ns-scroll-view)))
(let ((content-view (#/alloc ns:ns-view)))
(let ((column (#/alloc ns:ns-table-column)))
(setf content-view (#/contentView Window))
(ns:with-ns-rect (Frame 0 0 100 100)
;here we initialize the table-view the scroll-view and column then
;add the column
(#/init table-view)
(#/initWithFrame: scroll-view (#/frame (#/contentView Window)))
(#/initWithIdentifier: column (native-string "0"))
(#/addTableColumn: table-view column)
;make an instance of my controller class which is an nsObject
;I also tried to make it an NSWindowController but that didn't help
(let ((package-view (make-instance 'table-view-controller)))
;set the data source and the delegate
(#/setDataSource: table-view package-view)
(#/setDelegate: table-view package-view)))
(#/setHasVerticalScroller: scroll-view #$YES)
(#/setDocumentView: scroll-view table-view)
(#/setAutoresizesSubviews: (#/contentView Window) #$YES)
(#/addSubview: (#/contentView Window) scroll-view))))
(#/reloadData: table-view))
(#/setHasShadow: Window #$YES)
;display the window
(#/makeKeyAndOrderFront: Window Window))))))
這裏是從我numberOfRowsInTableView一個snipet:方法這是我的控制器表 - 視圖 - 控制器的一部分(此呼叫是NSObject的的)。
(objc:defmethod (#/numberOfRowsInTableView: #>NSInteger)
((self table-view-controller) (tab :id))
(print "hello")
;;... then do other things but just seeing the print statement would be a great step
什麼不工作,確切地說?你的數據源方法沒有被調用?你有沒有添加任何'NSTableColumn'到表格視圖?如果以編程方式創建'NSTableView',則默認情況下不會有任何表列。你也需要創建和添加這些。 – Alex 2010-01-27 22:31:07
是的,我添加了一個NsTableColumn,是的數據源方法沒有被調用(我只是爲了確定每個添加一個打印語句)。 – Mike2012 2010-01-27 22:32:51
'setDelegate:'和'setDataSource:'應該夠了。 cocoa-lisp bridge是否正確處理非對象數據?表視圖將在調用它之前檢查委託對象是否具有委託方法,因此調試它的一種方式可能是重寫'respondsToSelector:'並查看它是否被調用。 – Yuji 2010-01-27 22:34:43