Question

我有三个屏幕，名为：ViewController，SecondViewController，ThirdViewController

每个屏幕上有两个按钮在ViewController中：gotoSecondViewController，gotoThirdViewController 在SecondViewController中：gotoViewController，gotoThirdViewController 在ThirdViewController中：gotoViewController，gotoSecondViewController

我需要创建一个通用方法，可以从上面六个方法调用，这六个方法与六个按钮相关联，可以在三个视图之间切换

//
//  ViewController.h
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//
#import <UIKit/UIKit.h>
#import "SecondViewController.h"
#import "ThirdViewController.h"

@interface ViewController : UIViewController

@end


//
//  ViewController.m
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//
#import "ViewController.h"
@interface ViewController ()

@end

@implementation ViewController

- (IBAction)gotoSecondView:(id)sender {

    SecondViewController *screen2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    [self presentViewController:screen2 animated:YES completion:NO];
    [GlobleMethods changeScreen:@"SecondViewController"];
}

- (IBAction)gotoThirdView:(id)sender {

    ThirdViewController *screen3 = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    [self presentViewController:screen3 animated:YES completion:NO];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

****************************
//
//  SecondViewController.h
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "ViewController.h"
#import "ThirdViewController.h"

@interface SecondViewController : UIViewController

@end


//
//  SecondViewController.m
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//

#import "SecondViewController.h"


@interface SecondViewController ()

@end

@implementation SecondViewController

- (IBAction)gotoFirstView:(id)sender {

    ViewController *screen1 = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    [self presentViewController:screen1 animated:YES completion:NO];
}

- (IBAction)gotoThirdView:(id)sender {

    ThirdViewController *screen3 = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    [self presentViewController:screen3 animated:YES completion:NO];
}

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

*****************

//
//  ThirdViewController.h
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "ViewController.h"
#import "SecondViewController.h"
#import "GlobleMethods.h"

@interface ThirdViewController : UIViewController

@end


//
//  ThirdViewController.m
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//

#import "ThirdViewController.h"

@interface ThirdViewController ()

@end

@implementation ThirdViewController

- (IBAction)gotoFirstView:(id)sender {

    ViewController *screen1 = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    [self presentViewController:screen1 animated:YES completion:NO];
}

- (IBAction)gotoSecondView:(id)sender {

    SecondViewController *screen2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    [self presentViewController:screen2 animated:YES completion:NO];

}

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

Answer 1

您可以创建返回UIViewController的方法，并通过传递屏幕编号，该方法可以返回右视图控制器，然后您可以在视图层次结构中显示它。例如

-(UIViewController*)getViewControllerByNumber:(NSUInteger)screenNo
{
    if (screenNo = 2)
    {
        retuen [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    }
    else if (screenNo = 3)
    {
        return [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    }
    else
    {
        return [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    }
}

你可以这样称呼它：

 - (IBAction)gotoThirdView:(id)sender
{
    UIViewController *viewc= [self getViewControllerByNumber:3];
    // Or you can create class method and call it like that:
    // UIViewController *viewc= [ViewManager getViewControllerByNumber:3];
    [self presentViewController:viewc animated:YES completion:NO];
}

Answer 2

- (IBAction)gotoView:(id)sender{
   [GlobleMethods gotoView:sender deleget:self];
}

bind above method to any button's touchUpInside,
buttone title must be screen no like, 1,2,3


//
//  GlobleMethods.h
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface GlobleMethods : NSObject

+(UIViewController*)getViewControllerByNumber:(NSUInteger)screenNo;
+ (void) gotoView:(id)sender deleget:(id)deleget;

@end

****************************************************

//
//  GlobleMethods.m
//  MultiCommonMethod
//
//  Created by Hitendra C-Lover on 12/23/13.
//  Copyright (c) 2013 Hitendra C-Lover. All rights reserved.
//

#import "GlobleMethods.h"
#import "ViewController.h"
#import "SecondViewController.h"
#import "ThirdViewController.h"

@implementation GlobleMethods

+(UIViewController*)getViewControllerByNumber:(NSUInteger)screenNo
{
    if (screenNo == 2)
    {
        return [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    }
    else if (screenNo == 3)
    {
        return [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    }
    else
    {
        return [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    }
}

+ (void)gotoView:(id)sender deleget:(id)deleget{
    int screenNo = [[sender currentTitle]intValue];
    UIViewController *viewc= [self getViewControllerByNumber:screenNo];
    [deleget presentViewController:viewc animated:YES completion:NO];
}

@end

创建一个在多个屏幕之间切换的常规方法

2 个答案: