以编程方式将单元格布局中的约束更改为居中- Android

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

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

TextView textView = findViewById(R.id.textView);
ConstraintLayout.LayoutParams layoutParams = (ConstraintLayout.LayoutParams) textView.getLayoutParams();
layoutParams.horizontalBias = 0.5f; // 设置水平方向上的偏移量为0.5，即居中
layoutParams.verticalBias = 0.5f; // 设置垂直方向上的偏移量为0.5，即居中
textView.setLayoutParams(layoutParams);