Use. xib files in iOS to encapsulate a custom view

1. Create a custom view that inherits UIView, assuming the class name is called Myappvew

#import <UIKit/UIKit.h>@class  MyApp; @interface Myappview:uiview@property (strong,nonatomic) MyApp*app; +(instancetype) Appview; @end

MyAppView.h

#import "MyAppView.h"#import "MyApp.h"@interfaceMyappview () @property (weak, nonatomic) Iboutlet Uiimageview*IconView, @property (weak,nonatomic) iboutlet UILabel*namelable;@end@implementationMyappview-(void) Setapp: (MYAPP *) app{_app=app; Self.iconView.image=[UIImage ImageNamed:app.icon]; Self.nameLable.text=App.name; //NSLog (@ "%@", App.icon);}+(instancetype) appview{NSBundle*bundle=[NSBundle Mainbundle]; Nsarray*objs=[bundle loadnibnamed:@"Appinfoview"Owner:nil Options:nil]; return[Objs lastobject];}+ (Instancetype) Appviewwithapp: (MYAPP *) app{Myappview*appview=[self appview]; Appview.app=app; returnAppview;}@end

2. Create a new Myappview.xib file to describe the Myappview internal structure

3. Modify the type of UIView to Myappview type

4. Connect the internal child controls to the Myappview property

5.MyAppView provides a model property

@interface myappview ()

@property (weak, nonatomic) iboutlet uiimageview *iconview;

@property (weak,nonatomic) iboutlet UILabel *namelable;

6. Override the Set method of the Model property, because the set method can get the model data passed by the outside

-(void) Setapp: (MYAPP *) app{    _app=app;    Self.iconView.image=[UIImage ImageNamed:app.icon];    Self.nameLable.text=app.name;     // NSLog (@ "%@", App.icon);}

7. Detach the model data and set the data to the corresponding sub-controls respectively

8. Supplement: Provide a class method for creating Myappview that will mask the code that reads the. xib file.

+(instancetype) appview{        *bundle=[NSBundle mainbundle];     *objs=[bundle loadnibnamed:@ "appinfoview"  owner:nil Options:nil];     return [Objs lastobject];} + (Instancetype) Appviewwithapp: (MYAPP *) app{    *appview=[self appview];    Appview.app=app;     return Appview;}

By encapsulating the data, we have a preliminary understanding of MVC.

Use. xib files in iOS to encapsulate a custom view