Partial 7.0 merge - API preview

android/srcgp/mindustry/android/GPGameService.java

@@ -0,0 +1,40 @@
+package mindustry.android;
+
+import android.content.*;
+import arc.util.*;
+import com.google.android.gms.auth.api.signin.*;
+import com.google.android.gms.games.*;
+import mindustry.service.*;
+
+public class GPGameService extends GameService{
+    private GoogleSignInAccount account;
+
+    public void onResume(Context context){
+        Log.info("[GooglePlayService] Resuming.");
+
+        GoogleSignInAccount current = GoogleSignIn.getLastSignedInAccount(context);
+
+        GoogleSignInOptions options =
+        new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_GAMES_SIGN_IN)
+        .requestScopes(Games.SCOPE_GAMES_SNAPSHOTS)
+        .build();
+
+        if(GoogleSignIn.hasPermissions(current, options.getScopeArray())){
+            this.account = current;
+            Log.info("Already signed in to Google Play Games.");
+        }else{
+            GoogleSignIn.getClient(context, options).silentSignIn().addOnCompleteListener(complete -> {
+                if(!complete.isSuccessful()){
+                    if(complete.getException() != null){
+                        Log.err("Failed to sign in to Google Play Games.", complete.getException());
+                    }else{
+                        Log.warn("Failed to sign in to Google Play Games.");
+                    }
+                }else{
+                    this.account = complete.getResult();
+                    Log.info("Signed in to Google Play Games.");
+                }
+            });
+        }
+    }
+}