如何将工具栏内部约束布局宽度设置为与父级匹配？

<androidx.appcompat.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <!-- 在这里添加你的布局元素 -->

    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.appcompat.widget.Toolbar>

Toolbar toolbar = findViewById(R.id.toolbar);
ConstraintLayout constraintLayout = new ConstraintLayout(this);
ConstraintLayout.LayoutParams layoutParams = new ConstraintLayout.LayoutParams(
        ConstraintLayout.LayoutParams.MATCH_PARENT,
        ConstraintLayout.LayoutParams.WRAP_CONTENT
);
constraintLayout.setLayoutParams(layoutParams);
toolbar.addView(constraintLayout);

Toolbar toolbar = findViewById(R.id.toolbar);
ConstraintLayout constraintLayout = findViewById(R.id.constraint_layout);

ConstraintSet constraintSet = new ConstraintSet();
constraintSet.clone(constraintLayout);
constraintSet.setHorizontalBias(R.id.your_view_id, 0.5f); // 调整子视图的横向位置
constraintSet.applyTo(constraintLayout);