How to make a color gradient in a SeekBar?

Question

I want to use a SeekBar (i.e. old school Java Slider) into a color gradient picker. I have seen some examples like this but they all require making new classes and such. T

Answer 1

I figured it out here is how you do it.

You create a standard seekbar in your XML.

Then you customize the seekbar in your onCreate() by creating a boxShape and then force a LinearGradient inside it.

LinearGradient test = new LinearGradient(0.f, 0.f, 300.f, 0.0f,  

      new int[] { 0xFF000000, 0xFF0000FF, 0xFF00FF00, 0xFF00FFFF,
      0xFFFF0000, 0xFFFF00FF, 0xFFFFFF00, 0xFFFFFFFF}, 
      null, TileMode.CLAMP);
ShapeDrawable shape = new ShapeDrawable(new RectShape());
shape.getPaint().setShader(test);

SeekBar seekBarFont = (SeekBar)findViewById(R.id.seekbar_font);
seekBarFont.setProgressDrawable( (Drawable)shape );

Here is an image of the current code up above SeekBar Color Gradient