Android

Some common android interview questions

Share accounts in a secure way between own apps.

There are two things to consider this here.

• If either of the apps can have account created first or if there is a main app and other secondary apps that are dependent on it.
• If either apps can have account then we need to have the share libray code for registration.
• Communicate with the apps securely using KeyHash matching.
• @Deprecated way is to have sharedUserId in manifest with same signing key, which will let the app to access each others data folder plus can run in same process too.