Fix

src/pandroid/app/src/main/java/com/panda3ds/pandroid/AlberDriver.java

@@ -33,30 +33,10 @@ public class AlberDriver {
 	public static native void setShaderJitEnabled(boolean enable);
 
 
-	public static String parseNativeMode(String mode){
-		mode = mode.toLowerCase();
-		switch (mode){
-			case "r":
-			case "rb":
-				return "r";
-			case "r+":
-			case "r+b":
-			case "rb+":
-				return "rw";
-			case "w+":
-				return "rwt";
-			case "w":
-			case "wb":
-				return "wt";
-			case "wa":
-				return "wa";
-		}
-		throw new IllegalArgumentException("Invalid file mode: "+mode);
-	}
 
 	public static int openDocument(String path, String mode){
 		try {
-			mode = parseNativeMode(mode);
+			mode = FileUtils.parseNativeMode(mode);
 			Context context = PandroidApplication.getAppContext();
 			Uri uri = FileUtils.obtainUri(path);
 			ParcelFileDescriptor parcel;

src/pandroid/app/src/main/java/com/panda3ds/pandroid/utils/FileUtils.java

@@ -66,6 +66,27 @@ public class FileUtils {
         return file.getAbsolutePath();
     }
 
+    public static String parseNativeMode(String mode){
+        mode = mode.toLowerCase();
+        switch (mode){
+            case "r":
+            case "rb":
+                return "r";
+            case "r+":
+            case "r+b":
+            case "rb+":
+                return "rw";
+            case "w+":
+                return "rwt";
+            case "w":
+            case "wb":
+                return "wt";
+            case "wa":
+                return "wa";
+        }
+        throw new IllegalArgumentException("Invalid file mode: "+mode);
+    }
+
     public static boolean exists(String path) {
         return parseFile(path).exists();
     }