BitmapUtil.java 文件源码

private static Bitmap getCircleIcon(
        Context context, @ColorInt int backgroundColor, int backgroundInset,
        @DrawableRes int iconResId, @ColorInt int iconColor, int iconInset) {
    Drawable[] layers = new Drawable[2];
    ShapeDrawable background = new ShapeDrawable(new OvalShape());
    background.getPaint().setColor(backgroundColor);
    Drawable icon = ContextCompat.getDrawable(context, iconResId);
    Drawable tintedIcon = DrawableCompat.wrap(icon.mutate());
    DrawableCompat.setTint(tintedIcon, iconColor);
    layers[0] = background;
    layers[1] = tintedIcon;
    LayerDrawable layerDrawable = new LayerDrawable(layers);
    layerDrawable.setLayerInset(1, iconInset, iconInset, iconInset, iconInset);
    layerDrawable.setLayerInset(0, backgroundInset, backgroundInset, backgroundInset, backgroundInset);
    return drawableToBitmap(layerDrawable);
}