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2020-07-09 10:28:48 -0500	commented answer	Android OpenCV + camera is just showing black screen This code solves my problem： private void getPermission() { if (Build.VERSION.SDK_INT > 22) { if (Contex
2020-07-09 10:28:47 -0500	asked a question	error VideoCapture cap.open(), opencv4.1 Android C++ error VideoCapture cap.open(), opencv4.1 Android C++ This is my code： ``` cv::VideoCapture cap; cap.open(0); if (!cap
2020-06-11 02:49:18 -0500	answered a question	Android OpenCV + camera is just showing black screen I've tried it for a week，It's still a black screen, too Does anyone know what's going on ？