Hello, my name is Debarun and I am an experienced freelancer with over 12 years of experience in various fields such as web development, cloud ops, app development and marketing. I have worked on many projects related to android studio, java and accessibility service permission. As you described in your project description, you want to use accessibility service and system alert dialog in your project written with java so that you can show alert dialog whenever user searches for adult content in chrome browser or when user is in youtube app. The close button on the alert dialog should take user to homepage of the youtube app without opening any video.
I am confident that I can provide the needed expertise to ensure that your system works as expected. My skills include Java programming, mobile app development and I am experienced in working with accessibility service permission so I'm sure I can deliver an optimal solution for this project. Please feel free to reach out if you would like to discuss further or answer any additional questions you may have.