UberColorPickerDialog.java 文件源码

/**
 * Create a linear gradient shader to show variations in value.
 */
private void setVerValSlider() {
    float[] hsv = new float[3];
    hsv[0] = mHSV[0];
    hsv[1] = mHSV[1];
    hsv[2] = 1;
    int col = Color.HSVToColor(hsv);

    int colors[] = new int[2];
    colors[0] = col;
    colors[1] = 0xFF000000;
    GradientDrawable gradDraw = new GradientDrawable(Orientation.TOP_BOTTOM, colors);
    gradDraw.setDither(true);
    gradDraw.setLevel(10000);
    gradDraw.setBounds(0, 0, SLIDER_THICKNESS, PALETTE_DIM);
    gradDraw.draw(mVerSliderCv);
}