无法通过 JavaScript ObjC Bridge 从 Cocos2d 调用 Objective-C 方法

Question

网址：https://github.com/cocos-creator/creator-docs/blob/master/en/advanced-topics/oc-reflection.md

以上是Cocos脚本调用Objective-C方法的文档

我试图做完全相同的事情，但我得到了错误

2020-07-21 15:56:01.094441+0800 hello_world-mobile[63684:4206926] TestingLogging.testingIntegration method isn't found!
[ERROR] (/Applications/CocosCreator/Creator/2.3.3/CocosCreator.app/Contents/Resources/cocos2d-x/cocos/scripting/js-bindings/manual/JavaScriptObjCBridge.mm, 418): call (TestingLogging.testingIntegration) failed, result code: -3
[ERROR] Failed to invoke JavaScriptObjCBridge_callStaticMethod, location: /Applications/CocosCreator/Creator/2.3.3/CocosCreator.app/Contents/Resources/cocos2d-x/cocos/scripting/js-bindings/manual/JavaScriptObjCBridge.mm:427

.h 类

//
//  TestingLogging.h
//  hello_world-mobile
//
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface TestingLogging : NSObject

+(void) testingIntegration: (NSString *) string;

@end

NS_ASSUME_NONNULL_END

.m 类

//
//  TestingLogging.m
//  hello_world-mobile
//
//

#import "TestingLogging.h"

@implementation TestingLogging


+(void)testingIntegration:(NSString *)string {
    NSLog(@"First ios call from cocos creator app %@", string);
}

@end

cocos 中的脚本

onCameraClickHandler () {
    if(cc.sys.OS_IOS == cc.sys.os) {           
        var ret = jsb.reflection.callStaticMethod("TestingLogging", "testingIntegration", "Hello iOS")
    }
}

你能帮帮我吗！

Answer 1

在 Objective-C 中，冒号是方法名的一部分。它在链接文档中提到

上例中的

methodName参数是你类中的OC方法名，以NativeOcClass为例，我们可以看到一个名为

的方法

+(BOOL)callNativeUIWithTitle:(NSString *)title andContent:(NSString *)content;

所以 methodName 应该是 callNativeUIWithTitle:addContent: 这是这个方法的定义，不要忘记 :.

方法的名称是testingIntegration:。将脚本更改为

var ret = jsb.reflection.callStaticMethod("TestingLogging", "testingIntegration:", "Hello iOS")