Detailed explanation of widget construction process of fluent

Knowledge reserve ：
Flutter And BuilderContext and Widget Relationship analysis
Fultter And Element and Widget Correspondence analysis

Let's talk about it in detail today Flutter Of Element, I understand Element,Flutter Some of the concepts and frameworks of “ The louse on the programmer's head , At a glance, I saw through ”（ What a fucking metaphor ）, Don't talk much , To get on the bus ！

When we use Flutter When developing, we often use all kinds of Widget, that Element What is it ？ In a word ,Element It's just Widget The boss behind the scenes ,Flutter In other words, the update mechanism of is Element Included on Widget. and Flutter The page construction of is also from Element Of mount The method begins with .

Let's check first Element Account of , Look at the whole family ：