AnimatedImageSpan.java 文件源码

/**
 * 代码跟父类代码相似，就是getCachedDrawable()替换成getDrawable（）,因为前者里面的图片是WeakReference，
 * 容易被gc回收，所以这里要避免这个问题
 */
@Override
public int getSize(Paint paint, CharSequence text, int start, int end,
                   FontMetricsInt fm) {
    Drawable d = getDrawable();

    if (lineHeight > 0) {
        return (int) (d.getIntrinsicWidth() * scale);
    } else {
        Rect rect = d.getBounds();

        if (fm != null) {
            fm.ascent = -rect.bottom;
            fm.descent = 0;

            fm.top = fm.ascent;
            fm.bottom = 0;
        }
        return rect.right;

    }
}