IOS Basics (22) Creating a controller

Create a Controller

1th way through the code controller

HKUIViewController.h

#import <UIKit/UIKit.h>@interface hkuiviewcontroller:uiviewcontroller@end

Hkuiviewcontroller.m

" HKUIViewController.h " @implementation Hkuiviewcontroller@end

Appdelegate.m

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions {     = [[UIWindow alloc]init];     * HKVC = [[Hkuiviewcontroller alloc]init];     = [Uicolor redcolor];     = HKVC;    [Self.window makekeyandvisible];         return YES;}

2nd way: Load the controller via storyboard.

1) Xcode Create storyboard

Storyboard, User interface, IOS, Xcode, create a new file named Test.storyboard.

2) Set Test.storyboard to initial View Controller

Check the is initial View Controller.

3) Drag a View controller into the Test.storyboard.

Set his class to Hkuiviewcontroller.

Appdelegate.m

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions {     = [[UIWindow alloc]init];        *storyboard = [Uistoryboard storyboardwithname:@ "Test"  Bundle:nil];     * HKVC =  [Storyboard Instantiateinitialviewcontroller];         = HKVC;    [Self.window makekeyandvisible];         return YES;}

The controller can also be loaded by means of a representation.

In Test.storyboard, the identity setting Storyboard ID is switch.

Appdelegate.m

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (Nsdictionary *) launchoptions {Self.window=[[UIWindow alloc]init]; Uistoryboard*storyboard = [Uistoryboard storyboardwithname:@"Test"Bundle:nil]; //Hkuiviewcontroller * HKVC = [Storyboard Instantiateinitialviewcontroller];Hkuiviewcontroller *HKVC = [Storyboard Instantiateviewcontrollerwithidentifier:@"Switch"]; Self.window.rootViewController=HKVC;        [Self.window makekeyandvisible]; returnYES;}

Knowledge Points:

Commond + N Create a new storyboard

IOS Basics (22) Creating a controller