getExternalFilesDir compat

app/src/main/java/eu/faircode/email/Helper.java

@@ -2275,6 +2275,18 @@ public class Helper {
         return dir;
     }
 
+    static File getExternalFilesDir(Context context) {
+        return getExternalFilesDir(context, null);
+    }
+
+    static File getExternalFilesDir(Context context, String type) {
+        File[] dirs = ContextCompat.getExternalFilesDirs(context, type);
+        if (dirs == null || dirs.length == 0)
+            return context.getExternalFilesDir(type);
+        else
+            return dirs[0];
+    }
+
     static String sanitizeFilename(String name) {
         if (name == null)
             return null;