問(wèn)題描述
在兩個(gè)視圖控制器之間傳遞數(shù)據(jù)的例子有很多，其中一個(gè)視圖控制器導(dǎo)航到另一個(gè)視圖控制器.
There are many examples of passing data between two view controllers, where one view controller navigates to another view controller.
但是是否可以使用自定義協(xié)議傳遞數(shù)據(jù)?未通過(guò)導(dǎo)航控制器連接的視圖控制器之間的委托?
But is it possible to pass data using custom protocols & delegates between view controllers that are not connected by navigation controller?
所以，一個(gè)例子可以是:三個(gè)視圖控制器，即A、B、C.A 導(dǎo)航到 B，B 導(dǎo)航到 C.我知道如何在 A & 之間傳遞數(shù)據(jù)B 使用自定義協(xié)議 &代表.但是我們可以在 C & 之間傳遞數(shù)據(jù)嗎?A.因此A 可以是C 的委托，從而可以從C 接收數(shù)據(jù).這可能嗎?
So, an example could be: Three view controllers namely are, A,B,C. A navigates to B, and Bnavigates to C. I know how to pass data between A & B using custom protocols & delegates. But can we pass data between C & A. Thus A can be C's delegate and thereby can receive data from C. Is this possible?
任何幫助將不勝感激.
推薦答案
一種方法是使用 委托 向后傳遞數(shù)據(jù)
One way is use delegates for backward passing of data
參考 simple-delegate-tutorial-for-ios 用于將數(shù)據(jù)從 C 傳遞到 A 控制器的鏈接.
Refer simple-delegate-tutorial-for-ios link for passing data from C to A controller.
檢查 basic-delegate-example 鏈接.
另一種方法是發(fā)布通知.用于向后傳遞數(shù)據(jù)
Another way is by posting notification. for backward passing of data
檢查 Communicate-Two-Views 鏈接.
這篇關(guān)于在沒(méi)有任何導(dǎo)航控制器連接的情況下使用視圖控制器之間的委托傳遞數(shù)據(jù)的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，也希望大家多多支持html5模板網(wǎng)！