如何以编程方式设置ConstraintLayout的XML属性'layout_constrainedWidth'? [英] How to set the XML attribute 'layout_constrainedWidth' of ConstraintLayout programmatically?

问题描述

在约束布局"中，如何转换xml属性:

In Constraint Layout, how to convert the xml attribute:

app:layout_constrainedWidth=true|false

用代码?

推荐答案

我刚刚发现了这个问题.

I just figured this out.

因此，根据以上答案，

constrainedWidth可以通过ConstraintLayout.LayoutParams访问，因此可以通过以下代码进行更改:(谢谢@JeelVankhede)

constrainedWidth can be accessed through ConstraintLayout.LayoutParams and thus can be altered by the following code: (Thank you @JeelVankhede)

ConstraintLayout.LayoutParams lp = (ConstraintLayout.LayoutParams) 
myView.getLayoutParams(); // View for which we need to set constrainedWidth.
lp.constrainedWidth = true/false;
myView.setLayoutParams(lp);

但是，使用ConstraintsSet时，需要以下代码:

However when using ConstraintsSet the following code would be needed:

val constraintLayout = // your constraint layout
val constraintSet = ConstraintSet()
constraintSet.clone(constraintLayout)

// This is the imporatant part
constraint.constrainDefaultWidth(R.id.yourViewId, ConstraintSet.MATCH_CONSTRAINT_WRAP)

constraintSet.applyTo(constraintLayout)

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