ColorButton.java 文件源码

public ColorButton(Context context, AttributeSet attrs, int defStyle)
{
    super(context, attrs, defStyle);

    TypedArray a = context.obtainStyledAttributes(attrs,
            R.styleable.ColorButton, defStyle, 0);
    _color = a.getColor(R.styleable.ColorButton_color, Color.RED);

    _highlightDrawable = new GradientDrawable(Orientation.TOP_BOTTOM,
            new int[]
            {
                Color.WHITE, Color.TRANSPARENT, Color.TRANSPARENT
            });
    _highlightDrawable.setShape(GradientDrawable.OVAL);
    _colorDrawable = new GradientDrawable();
    _colorDrawable.setColor(_color);
    _colorDrawable.setShape(GradientDrawable.OVAL);
}