inflate(int resource, ViewGroup root, boolean attachToRoot)见解

/**
 * Inflate a new view hierarchy from the specified xml resource. Throws
 * {@link InflateException} if there is an error.
 * 
 * @param resource ID for an XML layout resource to load (e.g.,
 *        <code>R.layout.main_page</code>)
 * @param root Optional view to be the parent of the generated hierarchy (if
 *        <em>attachToRoot</em> is true), or else simply an object that
 *        provides a set of LayoutParams values for root of the returned
 *        hierarchy (if <em>attachToRoot</em> is false.)
 * @param attachToRoot Whether the inflated hierarchy should be attached to
 *        the root parameter? If false, root is only used to create the
 *        correct subclass of LayoutParams for the root view in the XML.
 * @return The root View of the inflated hierarchy. If root was supplied and
 *         attachToRoot is true, this is root; otherwise it is the root of
 *         the inflated XML file.
 */

inflate(int resource, ViewGroup root, boolean attachToRoot)

view=inflater.inflate(R.layout.fragment1, null，false)的三个参数详解；

第一个参数：加载view的布局文件。

第二个参数：

1.参数为空的情况，xml里的根布局（也就是最外层布局），将不会被加载（xml文件的根布局会失效）；

2.不为空的情况，

系统会调用params = root.generateLayoutParams(attrs);//根据xml文件的宽，高 获取params

temp.setLayoutParams(params); 会把这个布局加载进去；也就是说xml文件的根布局不会失效；

第三个参数：

如果为true:

系统会调用：root.addView(temp, params); 会自动调用addview();

https://blog.csdn.net/dongpeng0314/article/details/51737899