在包含布局中，你必须创建一个容器布局，并在这里放置id。

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/example"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent">
    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

假设我在activity_main.xml文件中包含了如下布局:

<include
    android:id="@+id/ll_layout1"
    layout="@layout/layout1"
    android:visibility="gone" />

假设我想改变它的可见性。我可以这样做:

activityMainBinding.llLayout1.root.visibility = View.VISIBLE

如果你想绑定包含布局，

活动

YourMainLayoutBinding mainLayoutBinding = MainLayoutBinding.inflate(getLayoutInflater);

View view = mainLayoutBinding.getRoot();

YourIncludedLayoutBinding includedLayoutBinding = YourIncludedLayoutBinding.bind(View);

的片段

YourMainLayoutBinding mainLayoutBinding = MainLayoutBinding.inflate(inflater,container,false);

View view = mainLayoutBinding.getRoot();

YourIncludedLayoutBinding includedLayoutBinding = YourIncludedLayoutBinding.bind(View);

确保你的主布局绑定父根是LinearLayout， incledlayoutbinding父布局也是线性布局

在我的例子中，我忘记将id分配给include标记

现在，当你赋值了id，你就能得到绑定对象，

YourMainLayoutBinding.YourIncludeTagIDLayoutBinding

在包含布局中，你必须创建一个容器布局，并在这里放置id。

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/example"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_constraintTop_toTopOf="parent">
    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

遵循步骤:

private val binding: FragmentBinding 由viewBinding (FragmentBinding:绑定) 确保在“onViewCreated(view: view, savedInstanceState: Bundle?)”中执行以下操作 Val binding2 = binding.root.include_layout_id

例如val binding2 = binding.root.tool_bar_layout

现在访问你的include布局，视图。如。

binding2.textView.text = "your text"