Uploaded February 2019 | Updated September 2026, 1 hour ago

---

Hi everyone, I am Angga Risky and in this video, we are gonna learn how to validate the username to prevent the duplication.

Still, we are using Adobe Xd and Android Studio and we need to use Java programming language with SharedPreferences to validate the username from Firebase database into the mobile app.

We will use the latest project, so make sure that you were downloaded the project in the link below:
garudapixel.com/en/android-studio-tutorial-photo-sharing-app-part-5

Missing some videos? Check here (Playlist of this App):
youtube.com/playlist?list=PL6j62WXKkENq8KZpd27YVWoLNwRWblzyi&disable_polymer=true

Thank you for coming and subscribe for more updates.
#design #coding #tutorial #anggarisky

🎓Take My Premium Classes:
udemy.com/user/angga-risky

👨🏻‍🎨My Works:
dribbble.com/anggarisky
behance.net/anggarisky

🙌🏼Ask a Question:
fb.com/anggariskycom
instagram.com/pandaugust

🕹My Gear Set:
Sony A6500
Sigma 16mm
MacBook Pro
Samson Mic C01U-Pro