获取错误Receiver for class message是一个前向声明 [英] Getting Error Receiver for class message is a forward declaration

问题描述

我正在创建自己的框架，我添加了客观的c文件，并且工作正常后我需要在添加swift文件后添加一些swift文件xcode没有给我选择auto 创建桥接然后我跟着

解决方案

最后我得到了解决方案。我做了以下更改。以下是您的框架中的列表。

Objective C类中的Swift类使用

• 在Swift中的类名前使用Open Keyword


• 在打开Swift类的关键字之前使用@objc关键字


• 在Umbrella文件中导入目标c类的所有标题
  YourProject.h那些正在使用Swift类。


• 使用 #import< YourProjectName / YourProjectName-目标
c中的Swift.h>

我遵循Apple Mix and Match方法。

I'm working on creating my own framework, I added objective c files and its working fine after that I needed to add some swift file after adding swift file xcode is not giving me option of auto Creating Bridging then I followed Mix and Match approach. I followed everything which I thing I understand.

I want to access swift file into Objective c but I'm getting error of forward declaration so Here is sample code I attached, kindly guide me where I'm doing wrong.

TestObjectCFile.h

#import <Foundation/Foundation.h>
@class TestSwiftFile;
@interface TestObjCFile : NSObject


@end

TestObjectCFile.m

#import "TestObjCFile.h"
#import <TestFrameworkTry/TestFrameworkTry-Swift.h>
#import "TestFrameworkTry.h"


@implementation TestObjCFile

- (void)TestMethodForImportingSwiftFile
{

    TestSwiftFile * testSwiftFile = [[TestSwiftFile alloc] init];
//    TestSwiftFile * testSwiftFile = [self returnSwiftClassInstance];
    NSLog(@"%@",testSwiftFile);
}
@end

TestSwiftFile.swift

import Foundation

And the error occur on TestObjectCFile.m following line.

TestSwiftFile * testSwiftFile = [[TestSwiftFile alloc] init];

as show attached picture.

解决方案

Finally I got solution. I did following changes. Here below is to do list in your Framework.

Swift classes usage in Objective C classes

• Use Open Keyword before class name in Swift
• Use @objc Keyword before Open Keyword of Swift class
• Import all header of objective c classes in Umbrella file YourProject.h those are consuming Swift Classes.
• Use #import <YourProjectName/YourProjectName-Swift.h> in Objective c

I followed Apple Mix and Match approach.

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