如何在Android Studio的摄像头视图中添加机型？

<FrameLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <SurfaceView
        android:id="@+id/camera_preview"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</FrameLayout>

private Camera mCamera;
private SurfaceView mPreview;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mPreview = findViewById(R.id.camera_preview);

    // 获取摄像头实例
    mCamera = Camera.open();

    // 设置摄像头预览显示
    try {
        mCamera.setPreviewDisplay(mPreview.getHolder());
    } catch (IOException e) {
        e.printStackTrace();
    }
}

@Override
protected void onResume() {
    super.onResume();

    // 开始摄像头预览
    mCamera.startPreview();
}

@Override
protected void onPause() {
    super.onPause();

    // 停止摄像头预览
    mCamera.stopPreview();
}

@Override
protected void onDestroy() {
    super.onDestroy();

    // 释放摄像头资源
    mCamera.release();
}