Android mixed language text - BidiFormatter on String with RTL and LTR text

I have a ListView with custom View where I have a TextView :

 <TextView
     android:id="@+id/textViewItemTitle"
     android:layout_width="0dp"
     android:layout_weight="1"
     android:layout_height="wrap_content"
     android:gravity="right|center_horizontal"
     android:text="title" />

This TextView contains Hebrew text.

 if(!bidi.isRtl(event)){
     event = bidi.unicodeWrap(event);
 }

 holder.title.setText(String.format("%s  %s  %s", bidi.unicodeWrap(item.getStartTimeNoDate().trim()), event,
 bidi.unicodeWrap(item.getDuration().trim())));

Where the first argument is time hh:mm:ss, second (event) is a Hebrew String and third like the first.

The problem: some time the event String contains mixed text in Hebrew and English like abc-אבג then all the text behave like the the gravity is left (and not right like I defined in the text view), I mean indented to left.

How to solve that?