Android Question Character ◄ does not show on button

I don't know why but... could you use this?

Thanks Luca. These codes generated all four directional arrows which is good to know. Would you happen to know what would be the similar code for left-pointing triangle (◄) which is the format I am using for the other arrows.

9668 but it is not visible!

Does anyone know why Chr(9668) and Alt 17 (both representing the character ◄) remain invisible while other similar signs (▲ ▼ ►) show fine? How can this be made visible.

Luca, I found Chr(9664) to do the trick. It is a left pointing triangle but is about half the size of other signs. I will play with font size to adjust it temporarily until someone can help figure out how to make Chr(9668) or Alt 17 visible. Appreciate your help. Jai

I have same issue in my app, after a while (without solution), then I had to stop using it

Seems that Android default font is missing some characters, including the left pointing arrow. Maybe you can set the background image with a bitmap of the arrow instead.