Ios-awakefromnib and Viewdidload

Awakefromnib

When the. nib file is loaded, a awakefromnib message is sent to each object in the. nib file, and each object can define its own awakefromnib function to respond to the message and perform some necessary actions. That is, creating a View object from the nib file is performed awakefromnib.

Viewdidload

Viewdidload is executed when the view object is loaded into memory, so viewdidload is executed regardless of whether the object is created through the nib file or code. The difference between awakefromnib and viewdidload