对UnityPlayerActivity来说，onActivityResult没有被调用。

Question 1

我没有很多为Unity3d创建Java(.aar)插件的经验，但我正试图从这样一个插件中设置谷歌认证与Firebase。举个例子来说明我的问题，我首先打开一个unity android应用程序，然后我运行下面的c#代码，在我的显示器上得到一个弹出窗口，让我用google登录。然后我选择了正确的google账户，然后google意图/活动消失了，然后我没有收到 "onActivityResult "被调用的指示。没有错误发生，我无法对我选择的谷歌账户信息进行任何操作。

In the image below, I click submit -> it opens the google sign-in activity in the next picture -> then it returns back to the submit screen (closing the google sign-in activity).

I think my issue is in this line:

activity.startActivityForResult(signInIntent, RC_SIGN_IN);
在这种情况下，"活动 "是由下面的c#unity代码发送的UnityPlayerActivity。我认为这使得我的代码在C# unity代码中寻找一个 "onActivityResult "方法，而不是在java代码中寻找。如果有任何帮助，我将不胜感激。如果你需要任何其他信息或屏幕截图，请告诉我。如果我是个白痴，请叫我出来。
Here is my code for calling the Google Signin Plugin From C# & Unity3d:
        AndroidJNIHelper.debug = true; 
        using (AndroidJavaClass activityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer")) {
            activity_context = activityClass.GetStatic<AndroidJavaObject>("currentActivity");
        using (AndroidJavaClass pluginClass = new AndroidJavaClass("com.package.class")) {
            if (pluginClass != null) {
                GoogleSignInActivity = pluginClass.CallStatic<AndroidJavaObject>("instance");
                GoogleSignInActivity.Call("SetContext", activity_context);
                GoogleSignInActivity.Call("StartGoogleLogin", activity_context);
                activity_context.Call("runOnUiThread", new AndroidJavaRunnable(() => {
                    GoogleSignInActivity.Call("ShowMessage", "You signed in as " + display_name);
下面是创建Google SignIn活动的代码。
public void StartGoogleLogin(UnityPlayerActivity activity) {
    gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken("some url")
            .requestEmail()
            .build();
    mGoogleSignInClient = GoogleSignIn.getClient(activity, gso);
    Intent signInIntent = mGoogleSignInClient.getSignInIntent();
    activity.startActivityForResult(signInIntent, RC_SIGN_IN);
    Log.d(TAG, "Activity Started; Waiting For Result");
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    Log.d(TAG, "Result Received!");
    if (requestCode == RC_SIGN_IN) {
        Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
        try {
            // Google Sign In was successful
            GoogleSignInAccount account = task.getResult(ApiException.class);
            someMethod(account);
        } catch (ApiException e) {
            // Google Sign In failed, update UI appropriately
            Log.d(TAG, "Google sign in failed", e);
        setResult(RESULT_OK);
谢谢你的时间。

Question 2


          
           
            
             好吧，我解决了自己的问题，让谷歌认证在安卓.ar插件和Unity c#之间工作。一直在不知疲倦地工作，并找到了一些踢爆的资源。
            
            
             首先，也是最重要的，我参考了一个叫cwgtech的人写的代码
             
              HERE
             
             .
            
            
             我还翻阅了他所有的
             
              videos
             
             .
            
            
             我没有使用UnitySendMessage，而是使用了一个类似于CWGTech的回调方法，将googleIdToken送回Unity，用Google登录到Firebase。我也正确地认为我的错误是在下面的语句中。
            
            activity.startActivityForResult(signInIntent, RC_SIGN_IN);
我没有这样做，而是按照CWGTech的建议，删除了 "activity. "部分。我在一个扩展了Activity的ResultCallback类中运行了startActivityForResult。如果你仍然感到困惑，可以给我打电话或在这个帖子上发表评论。谢谢!
下面是我用C#写的一些代码，通过一个Java代理向Unity发送回调字符串。关于编写Java代理的信息可以在上面的cwgtech信息中找到。如果你想让信息从Android活动流向Unity C#，编写java代理是非常重要的。CWGTech对java代理错综复杂的解释比我能做的更好。
public static final String LOGTAG = GoogleSignInActivity.TAG + "_OnResult";
public static GoogleSignInActivity.ShareStringCallback shareStringCallback;
private static final int RC_SIGN_IN = 9001;
private GoogleSignInClient mGoogleSignInClient;
private GoogleSignInOptions gso;
private CallbackManager mCallbackManager;
public void myFinish(String myresult) {
    if (shareStringCallback != null) {
        shareStringCallback.onLoginComplete(myresult);
    shareStringCallback = null;
    finish();
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.i(LOGTAG, "onCreateBundle");
    Intent intent = getIntent();
    setContentView(R.layout.login_activity);
    findViewById(R.id.buttonFacebookLogin).setOnClickListener(this);
    findViewById(R.id.signInButton).setOnClickListener(this);
    findViewById(R.id.buttonAnonymousSignIn).setOnClickListener(this);
/* GOOGLE SIGN-IN CODE */
public Intent StartGoogleLogin() {
    Google Sign In Client Init Code Goes Here
    Intent signInIntent = mGoogleSignInClient.getSignInIntent();
    return signInIntent;
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    //Detects some type of result from an activity, in this case Google
    String id_result = "Send This To Unity";
    myFinish(id_result);
下面是一个不同的java类文件中的一些代码。登录 "方法是由Unity c#调用的。
/* INTERFACES FOR CALLBACK FUNCTIONAILITY */
public interface ShareStringCallback {
    public void onLoginComplete(String result);
public void Login(final ShareStringCallback callback)
    mainActivity.runOnUiThread(new Runnable() {
        @Override
        public void run() {
            try {
                Log.i(TAG,"Starting Authentication");
                try {
                    try {
                        Intent shareIntent = new Intent();
                        shareIntent.setAction(Intent.ACTION_SEND);
                        shareIntent.setClass(mainActivity,OnResultCallback.class);
                        OnResultCallback.shareStringCallback = callback;
                        mainActivity.startActivity(shareIntent);
                    catch (Exception e)
                        e.printStackTrace();
                        Log.i(TAG,"error sharing intent: " + e);
                catch (Exception e)
                    e.printStackTrace();
                    Log.i(TAG,"Error getting Uri: " + e);
            catch (Exception e)
                e.printStackTrace();
                Log.i(TAG,"Error writing file: " + e);

Question 3


          
           
            
             
              
               
                当你从UnityPlayerActivity启动一个活动时，onActivityResult会在完成后被调用，但会有其默认的返回值。你可以做的是在Android中创建一个新的活动，并扩展UnityPlayerActivity。
               
               
                In Android, create a new Activity
               
               import com.unity3d.player.UnityPlayer;
public class OverrideUnityPlayerActivity extends UnityPlayerActivity{
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    public Activity getCurrentActivity(){
        return mUnityPlayer.currentActivity;
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0) {
            switch (resultCode) {
                case Activity.RESULT_OK:
                    //do something
                    break;
                case Activity.RESULT_CANCELED:
                    //do something
                    break;
You need to set this override activity as launch endpoint in AndroidManifest.XML
<?xml version="1.0" encoding="utf-8"?>
<manifest
    xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.unity3d.player"
    xmlns:tools="http://schemas.android.com/tools">
    <uses-permission android:name="android.permission.INTERNET" />
    <application
        android:allowBackup="false"
        tools:replace="android:allowBackup">
        <activity 
            android:name="com.example.unitylibrary.manager.OverrideUnityPlayerActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
            <meta-data android:name="app_name" android:value="app_value"/>
        </activity>
    </application>
</manifest>
3.然后在Unity中，你可以得到这个活动和背景，也可以得到onActivityResult。
AndroidJavaObject overridePlayerActivity;
AndroidJavaObject overrideActivity;
public void init(){
    overridePlayerActivity = new AndroidJavaObject("com.example.unitylibrary.manager.OverrideUnityPlayerActivity");
    overrideActivity= overridePlayerActivity.Call<AndroidJavaObject>("getCurrentActivity");