Every Nostr Android client should support Amber these days. It's quite stable already.
Pleased to announce that #0xchat Android has released v1.2.3 beta version, supporting login with Amber from nostr:npub1w4uswmv6lu9yel005l3qgheysmr7tk9uvwluddznju3nuxalevvs2d0jr5
APK download:
https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.2.3-beta/v1.2.3-beta.apk

Discussion
Agree. Agree. Maybe we can talk nostr:npub16c0nh3dnadzqpm76uctf5hqhe2lny344zsmpm6feee9p5rdxaa9q586nvr into supporting it down the road for Primal?
Definatelly. Let's do this nostr:npub16c0nh3dnadzqpm76uctf5hqhe2lny344zsmpm6feee9p5rdxaa9q586nvr.
I intend to remove the login with nsec in the future. So, let's make sure we help build something that trully supports all clients.
how do I ?
Just use the Content Resolver + Intents to call Amber: https://github.com/nostr-protocol/nips/pull/868