Note that every LayoutParams subclass has its own syntax for setting values.

注意每个布局参数子类有自己的设置值得语法。

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Each child element must define LayoutParams that are appropriate for its parent, though it may also define different LayoutParams for its own children.

每个子元素必须定义对于它的父亲来说是合适的布局参数，尽管它也可以为它的子元素定义不同的布局参数。

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