switchCameras method
void
switchCameras()
The method to switch cameras. 切换相机的方法
Switch cameras in order. When the currentCameraIndex reached the length of cameras, start from the beginning. 按顺序切换相机。当达到相机数量时从头开始。
Implementation
void switchCameras() {
++currentCameraIndex;
if (currentCameraIndex == cameras.length) {
currentCameraIndex = 0;
}
initCameras(currentCamera);
}