SUtils.java 文件源码

private static Drawable createButtonShape(Context context, int color) {
    // Translation of Lollipop's xml button-bg definition to Java
    int paddingH = context.getResources()
            .getDimensionPixelSize(R.dimen.button_padding_horizontal_material);
    int paddingV = context.getResources()
            .getDimensionPixelSize(R.dimen.button_padding_vertical_material);
    int insetH = context.getResources()
            .getDimensionPixelSize(R.dimen.button_inset_horizontal_material);
    int insetV = context.getResources()
            .getDimensionPixelSize(R.dimen.button_inset_vertical_material);

    float[] outerRadii = new float[8];
    Arrays.fill(outerRadii, CORNER_RADIUS);

    RoundRectShape r = new RoundRectShape(outerRadii, null, null);

    ShapeDrawable shapeDrawable = new ShapeDrawable(r);
    shapeDrawable.getPaint().setColor(color);
    shapeDrawable.setPadding(paddingH, paddingV, paddingH, paddingV);

    return new InsetDrawable(shapeDrawable,
            insetH, insetV, insetH, insetV);
}