Hello ,we have gone through your requirements. and we like to convey that we have already done similar kind of the Video App before also. We can address any concerns that you might have in regards to moving forward with the project. Tan.
I am a software engineer with 3+ years professional experience. I can help you with this.
I have worked on something similar to disable back and home button earlier so I know how this can be done.
Let me know the android version you are targeting. Also does the app do anything other than playing videos? Will the videos be bundled with app or are they streamed? Do you have any mockup on how the app should look like?