增加id,android:id="@+id/includeHeader",然后// 访问包含的布局中的视图 binding.includeHeader.headerTitle.text = "Updated Header Title"
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="@+id/includeHeader"
layout="@layout/layout_header" />
<TextView
android:id="@+id/mainContent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Main Content" />
</LinearLayout>