unity中接入Google Play SDK

参考:

Google Play Games plugin for Unity:

https://github.com/playgameservices/play-games-plugin-for-unity#paste-the-game-resources-into-the-plugin-setup-dialog

Setting Up Google Play Games Services:

https://developers.google.com/games/services/console/enabling

准备
确保你的Android SDK中包含以下内容：
• Google Play Services
• Android Support Library
• Local Maven repository for Support Libraries (Also known as Android Support Repository)
• Google Repository
• Android 6.0 (API 23) (this does not affect the min SDK version).

使用Android SDK Manager 来确认你的SDK内容

如果下载过慢，可以尝试使用以下站点：

导入SDK
1.将GooglePlayGamesPlugin-0.9.42.unitypackage文件导入到你的项目中
导入项目后请务必至少修改一次包名(Package Name)，确保你已看到此界面：

*如果已经是正式包名，则添加任意字符，Resolving 结束后再改回正式包名，
  正式包名必须与你在后台填写的包名一致。

*如果Resolving结束后弹出以下提示，请选择NO

*确保Resolving结束后Plugins > Android目录下存在此文件 gpgs-plugin-support-0.9.42

2.导入后菜单栏将出现SDK选项，选择Window > Google Play Games > Setup > Android Setup
面板中 

directory to save constants以及Constants class name使用默认值即可
Resources Definition 在后台中：

 你还需要从后台生成Client ID 并填入。

使用

这里我们只使用到了排行榜功能：

1.AndroidManifest文件中需加入以下代码

2.实现登录以及排行榜的方法，包括登录、注销、上传分数以及显示排行榜:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

using GooglePlayGames;
using UnityEngine.SocialPlatforms;

/// 

/// Google play manager.
/// create by liufeng on 18-01-11
/// 
public static class GooglePlayManager {

    public delegate void GPDelegate(bool success,string uname);

    static GPDelegate authenticatingCallback = null;

	/// 

    /// 初始化SDK
    /// 
	public static void Init () {
        PlayGamesPlatform.Activate();
	}

    /// 

    /// 是否登录
    /// 
    /// The authenticated.
    public static bool Authenticated(){
        return Social.localUser.authenticated;
    }
	
    /// 

    /// 登录
    /// 
    /// The authenticating.
    /// 回调
    public static void Authenticating(GPDelegate cb = null){
        authenticatingCallback = cb;
        Social.localUser.Authenticate((bool success) =>
        {
            if (success)
            {
                Debug.Log("Authentication success : " + Social.localUser.userName);
            }
            else
            {
                Debug.Log("Authentication failed");
            }
            if (cb != null) cb(success, Social.localUser.userName);
        });
    }

    /// 

    /// 注销
    /// 
    public static void SignOut(){
        ((PlayGamesPlatform)Social.Active).SignOut();
    }


    /// 

    /// 上传分数
    /// 
    /// 分数.
    /// 排行榜id.
    public static void PostScore(int scores,string lbid){
        if(!Authenticated()){
            Debug.Log("没有登录");
            return;
        }

        Social.ReportScore(scores,lbid,  (bool success) => {
            // handle success or failure
            Debug.Log("post score : " + success);
        });

    }

    /// 

    /// 显示排行榜
    /// 
    /// 排行榜id，传空字符串则显示全部排行榜
    public static void ShowLeaderboard(string lbid = ""){
        if (!Authenticated())
        {
            Debug.Log("没有登录");
            return;
        }
        if(lbid == ""){
            Social.ShowLeaderboardUI(); 
        }else{
            PlayGamesPlatform.Instance.ShowLeaderboardUI(lbid);
        }

    }
}

测试

GooglePlayTest为测试方法，将此类放到任意场景中，可快速测试SDK的各项功能是否正确

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GooglePlayTest : MonoBehaviour {

    const int height = 70;
    const int width = 200;

	// Use this for initialization
	void Start () {
        GooglePlayManager.Init();
	}
	
    int high;
    void OnGUI()
    {
        high = 10;

        if (CreateBtn("登录"))
        {
            GooglePlayManager.Authenticating(AuthenticatingCallBack);
        }

        if (CreateBtn("注销"))
        {
            GooglePlayManager.SignOut();
        }

        if (CreateBtn("上传分数"))
        {
            GooglePlayManager.PostScore(123,"CgkImoOim_EUEAIQAQ");
        }

        if (CreateBtn("显示排行榜"))
        {
            GooglePlayManager.ShowLeaderboard("CgkImoOim_EUEAIQAQ");
        }
    }


    public bool CreateBtn(string btnname)
    {
        bool b = GUI.Button(new Rect(Screen.width / 2 - width / 2, high, width, height), btnname);
        high += height + 5;
        return b;
    }

    public void AuthenticatingCallBack(bool success, string uname)
    {
        if(success){
            NGUIDebug.Log("Authenticating success : " + uname);
            Debug.Log("Authenticating success : " + uname);
        }else{
            NGUIDebug.Log("Authenticating failed  " );
            Debug.Log("Authenticating failed  " );
        }

    }

}

最后我们需要一台可以连接google网站的手机，并确认已安装google play服务。

这里可以在应用商店中搜索"google框架安装器"，大部分商店中都有，安装后就可以使用google play服务了。