如何在CameraX预览视图中显示文本视图？

// 布局文件 camera_preview.xml
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/previewContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextureView
        android:id="@+id/previewView"
        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:textSize="16sp"
        android:textColor="#FFFFFF"
        android:layout_margin="16dp" />

</FrameLayout>

// 在Activity或Fragment中的代码
class MainActivity : AppCompatActivity() {

    private lateinit var previewContainer: FrameLayout
    private lateinit var previewView: TextureView
    private lateinit var textView: TextView

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        previewContainer = findViewById(R.id.previewContainer)
        previewView = findViewById(R.id.previewView)
        textView = findViewById(R.id.textView)

        // 配置CameraX...

        // 获取预览视图...

        // 添加文本视图
        previewContainer.addView(textView)

        // 设置文本内容和样式
        textView.text = "示例文本"
        textView.setTextSize(16f)
        textView.setTextColor(Color.WHITE)

        // 调整文本视图位置
        val layoutParams = textView.layoutParams as FrameLayout.LayoutParams
        layoutParams.gravity = Gravity.TOP or Gravity.LEFT
        layoutParams.topMargin = 16
        layoutParams.leftMargin = 16
        textView.layoutParams = layoutParams
    }
}