androidcamera: add a missing header.

fix #11699 Missing std header
6 years ago · 7f3af2b2d9
parent fd63c60418
commit 7f3af2b2d9
1 changed files with 1 additions and 0 deletions
--- a/modules/androidcamera/src/camera_activity.cpp
+++ b/modules/androidcamera/src/camera_activity.cpp
@ -7,6 +7,7 @@
 #include <string>
 #include <vector>
 #include <algorithm>
+#include <functional>
 #include <opencv2/core/version.hpp>
 #include "camera_activity.hpp"
 #include "camera_wrapper.h"