如何在应用程序上重复显示图像和视频（来自应用程序资源），而无需粘贴UI

I need to do app like slideshow of images and vidoes from fiels from the device. I have tried several projects - but no one can display videos. What is the best way to do ot. All I need is to display, repeatedly, images and videos from the devices without the UI will stuckI need to do app like slideshow of images and v