如何以编程方式向LinearLayout添加和删除布局行为 [英] How to add and remove layout behavior programmatically to LinearLayout

问题描述

您可以将 app:layout_behavior ="@ string/appbar_scrolling_view_behavior" 行为添加到XML声明中的 LinearLayout 中，但是我没有找到一种方法相同的代码.使用 CoordinatorLayout ，您可以调用 CoordinatorLayout.LayoutParams.setBehavior()，但 LinearLayout.LayoutParams 上不提供此方法.有没有办法对 LinearLayout 做类似的事情?

You can add the app:layout_behavior="@string/appbar_scrolling_view_behavior" behavior to a LinearLayout in the XML declaration but I haven't found a way to do the same in code. With a CoordinatorLayout you can call CoordinatorLayout.LayoutParams.setBehavior() but this method isn't available on LinearLayout.LayoutParams. Is there a way to do something similar for LinearLayout?

推荐答案

您有点误解了 LayoutParams 概念.

LayoutParams 对象与封闭的 ViewGroup 相关，不与修改后的 ViewGroup 本身相关.

LayoutParams object is related to the enclosing ViewGroup, not to the modified ViewGroup itself.

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