With the Android SeekBar, you can normally drag the thumb to the left or to the right and the yellow progress color is to the left of the thumb. I want the exact opposite, essentially flipping the yellow progress color to the right of the thumb and flipping the entire SeekBar on the y-axis.
Can anyone point me in the right direction? Thanks!
After fiddling around with some code this is what I got and it seems to work pretty well. Hopefully it will help someone else in the future.
public class ReversedSeekBar extends SeekBar { public ReversedSeekBar(Context context) { super(context); } public ReversedSeekBar(Context context, AttributeSet attrs) { super(context, attrs); } public ReversedSeekBar(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } @Override protected void onDraw(Canvas canvas) { float px = this.getWidth() / 2.0f; float py = this.getHeight() / 2.0f; canvas.scale(-1, 1, px, py); super.onDraw(canvas); } @Override public boolean onTouchEvent(MotionEvent event) { event.setLocation(this.getWidth() - event.getX(), event.getY()); return super.onTouchEvent(event); } } This was thrown together with the help of these two questions:
Have you tried seekbar.setRotation( 180 )? It flips the seekbar 180 degrees and is upside down, meaning left side is max, right side is 0 with the color on the right of the thumb. No need to create a custom seekbar this way.
You should look into making a custom progress bar. Considering what you want to do, you already have the images you need in the Android SDK. I'd extract them and edit them accordingly. Here's a tutorial to help get you started.