game_cocos_2c/assets/scripts/platform/FaceBook/Facebook.ts

import { ANDROID, IOS } from "cc/env";
import { FacebookImpl } from "./FacebookImpl";
import { FBAndroidImpl } from "./FBAndroidImpl";
import { FBH5Impl } from "./FBH5Impl";
import { FBIOSImpl } from "./FBIOSImpl";


function getFaceBookImpl(): FacebookImpl {
    if (ANDROID) {
        return new FBAndroidImpl();
    }

    if (IOS) {
        return new FBIOSImpl();
    }

    return new FBH5Impl();
}

const fb = getFaceBookImpl();
export default fb;