OpenHarmony 3.2 Release如何采用相机相关Native API切换相机的前后摄像头？
如题，OpenHarmony 3.2 Release如何采用Native API切换相机的前后摄像头，目前默认获取的摄像头个数为1（尽管设备存在两个摄像头）, 代码片段如下：```sptr camManagerObj = CameraManager::GetInstance();camManage
如题，OpenHarmony 3.2 Release如何采用Native API切换相机的前后摄像头，目前默认获取的摄像头个数为1（尽管设备存在两个摄像头）, 代码片段如下：
```
sptr<CameraManager> camManagerObj = CameraManager::GetInstance();
camManagerObj->SetCallback(std::make_shared<TestCameraMngerCallback>(testName));
std::vector<sptr<CameraDevice>> cameraObjList = camManagerObj->GetSupportedCameras();
LOGI("Camera ID count: %lu\n", cameraObjList.size());
for (auto info : cameraObjList) {
LOGI("Camera ID: %s, position: %d, camera type: %d, connection type: %d\n", info->GetID().c_str(),
info->GetPosition(), info->GetCameraType(), info->GetConnectionType());
}
```
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