objective-c - 自定义框架中的错误 "No known class method for selector ' Hello :'"

Question

我正在为一家公司做一个框架，我已经完成了所有的代码。我现在正试图将它打包成一个框架。作为测试，我用这个名称创建了一个方法:-(void)Hello:(NSString *)worldText;

当我尝试在应用程序中使用此代码[CompanyMobile Hello:@"World"]; 在框架中调用它时，出现编译器错误

No known class method for selector 'Hello:'

我框架中的.m如下:

#import "Hello.h"

@implementation Hello

- (id)init
{
    self = [super init];
    if (self) {
        // Initialization code here.
    }

    return self;
}

-(void)Hello:(NSString *)world {

}

@end

我框架中的.h如下:

#import <Foundation/Foundation.h>

@interface Hello : NSObject
-(void)Hello:(NSString *)world;
@end

我应用中的.h

//
//  FMWK_TESTViewController.h
//  FMWK TEST
//
//  Created by Sam on 6/15/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import <UIKit/UIKit.h>
#import <companyMobile/Hello.h>
@interface FMWK_TESTViewController : UIViewController

@end

我应用中的.m

//
//  FMWK_TESTViewController.m
//  FMWK TEST
//
//  Created by Sam Baumgarten on 6/15/11.
//  Copyright 2011 __MyCompanyName__. All rights reserved.
//

#import "FMWK_TESTViewController.h"

@implementation FMWK_TESTViewController

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

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

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
}

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
}

- (void)viewDidDisappear:(BOOL)animated
{
    [super viewDidDisappear:animated];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return YES;
}

@end

Answer 1

您将 Hello: 定义为实例方法，但您正在向类发送 Hello:。要定义类方法，您可以编写 + (void)Hello: 而不是 - (void)Hello:。