@Override public void closeCamera() { if (!isClosedCamera) { // 关闭摄像头 AVChatManager.getInstance().toggleLocalVideo(false, null); isClosedCamera = true; avChatSurface.localVideoOff(); } else { // 打开摄像头 AVChatManager.getInstance().toggleLocalVideo(true, null); isClosedCamera = false; avChatSurface.localVideoOn(); } }