Question

I have SeekBar with 3 value (left, on center and right) and I will like to put some mark where progess level are, e.g. on center to put vertical line over bar or something like that.

Is this possible or it’s might be better to use some different component?

Like on this image, I need something like this red line

Answer 1

You can use the setBackgroundDrawable(Drawable d).
Save an image of what you want the labels to be in a png image then add it to your resources in your project.

Here is some code I used, where my image was the android launcher icon:

seekbar = (SeekBar) findViewById(R.id.seekBar1);
Resources r = getResources();
Drawable d = r.getDrawable(R.drawable.ic_launcher);
seekbar.setBackgroundDrawable(d);