CheckableDrawable.java 文件源码

public CheckableDrawable(Context context, int checkedRes, int uncheckedRes, int filledRes, PointF offset) {
    this.context = context;
    this.checkedRes = checkedRes;
    this.uncheckedRes = uncheckedRes;
    this.filledRes = filledRes;
    this.offset = offset;

    maskPaint.setAlpha(255);
    maskPaint.setColor(0xffffffff);
}