I've tinkered in app development here and there over my life and did a computer science course in university focused on Java around 15 years ago, but I've never really practiced app development. I'm saying this because I'm trying to build an Android TV app and I need help and I'm hoping I'll be a quick learner.
I have an HDMI to USB dongle that I have in my android TV box and I want to build an app that can take that stream and display it. There should be nothing else on the app except the stream. If I press the back button, it must exit the app. If I press the ok button, a settings menu must come up where I can change the currently active HDMI-to-USB device (in the case where multiple adaptor devices are connected). If I press the home button, the stream just go into pip. Also, when the app starts up, it must always be the last used hdmihtohusb device that streams. I'll also like the user to be able to rename the list of devices in the settings app to whatever they choose.
If anyone can guide me on how to build this, I will really appreciate it. I also have some dollars saved to pay someone who can assist me in either building this or providing me with specifics on how to build this.
What I'm trying to achieve is have an HDMI Input Viewer for any Android TV. This would allow me to pass any HDMI feed through the adaptor and play it in this HDMI input Viewer app. If the user has multiple HDMI devices connected through multiple hdmi-to-usb adaptors, the user will be able to switch devices in this app too. I'm really trying to make a simple HDMI input Viewer with hdmi source switching.
Anyone who can help?
Edit: If there is anyone who can help me build this app, here is the detail of the requirements I have for this app: https://docs.google.com/presentation/d/1j8ZM96vaJjdsG-35qsaU_-g8lfU46mydyIehPrC_wjw/edit?usp=sharing