/**
* 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();

 

 

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