package android.widget; import android.content.Context; import android.graphics.Canvas; import android.graphics.drawable.Drawable; import android.util.AttributeSet; public abstract class AbsSeekBar extends ProgressBar { public AbsSeekBar(Context context) { super(context); } public AbsSeekBar(Context context, AttributeSet attributeSet) { super(context, attributeSet); } public Drawable getThumb() { return new Drawable() { @Override public void draw(Canvas canvas) { // TODO Auto-generated method stub throw new UnsupportedOperationException("Unimplemented method 'draw'"); } }; } }