How to dynamically change the color of progress bar background android

Question

I\'d like to dynamically change the background color of a progress bar in android. I followed the \"bonus\" part near the end of the page of this tutorial:

http://colint

Answer 1

Well, for anyone looking for how to do it programmatically:

    Drawable bckgrndDr = new ColorDrawable(Color.RED);
    Drawable secProgressDr = new ColorDrawable(Color.GRAY);
    Drawable progressDr = new ScaleDrawable(new ColorDrawable(Color.BLUE), Gravity.LEFT, 1, -1);
    LayerDrawable resultDr = new LayerDrawable(new Drawable[] { bckgrndDr, secProgressDr, progressDr });

    resultDr.setId(0, android.R.id.background);
    resultDr.setId(1, android.R.id.secondaryProgress);
    resultDr.setId(2, android.R.id.progress);

    progressBar.setProgressDrawable(resultDr);

Setting ids to drawables is crucial, and takes care of preserving bounds and actual state of progress bar