Storyboard & XIB's own understanding

1.storyboard

(1)

Here Bundle:nil equivalent to [NSBundle Mainbundle]

Secondviewcontroller *SECONDVC = [[Uistoryboard storyboardwithname:@ "Main" Bundle:nil] instantiateviewcontrollerwithidentifier:@ "Second"];

Secondviewcontroller *SECONDVC = [[Uistoryboard storyboardwithname:@ "Main" Bundle:[nsbundle MainBundle]] instantiateviewcontrollerwithidentifier:@ "Second"];

(2)

Secondviewcontroller *SECONDVC = [[Uistoryboard storyboardwithname:@ "SECONDSB" Bundle:nil] instantiateviewcontrollerwithidentifier:@ "Second"];

(3)

Secondviewcontroller *SECONDVC = [[Uistoryboard storyboardwithname:@ "SECONDSB" Bundle:nil] Instantiateinitialviewcontroller];

2. xib file with the same name as the controller secondviewcontroller.xib init or initwithnibname loaded

(1)

Secondviewcontroller *SECONDVC = [[Secondviewcontroller alloc]init];

(2)

Secondviewcontroller *SECONDVC = [[Secondviewcontroller alloc]initwithnibname:@ "Secondviewcontroller" Bundle:nil] ;

3. xib file with different name of controller View.xib loadnibnamed load Controller's View

/*

Specify the view to load Xib as controller when creating the controller, the name is irrelevant

> need to modify the Fileowner of the Xib file to associate

> Need to point the view inside the Fileowner to the view inside the Xib

*/

(1) Initwithnibname---Focus on file owner

Secondviewcontroller *SECONDVC = [[Secondviewcontroller alloc]initwithnibname:@ "Second" bundle:nil];

(2)

Secondviewcontroller *SECONDVC = [[Secondviewcontroller alloc]init];

Secondvc.view = [[[NSBundle mainbundle]loadnibnamed:@ "Secondviewcontroller" Owner:nil Options:nil] lastObject];

4. xib file with different name of controller delete view, create controller loadnibnamed---Focus on content in Xib

Secondviewcontroller *SECONDVC = [[[NSBundle mainbundle]loadnibnamed:@ ' SECONDVC ' Owner:nil Options:nil] lastObject] ;

Storyboard & XIB's own understanding