Android

There are times when the state of the app must be retained even if the app is closed. At first, I used to subclass the Application class and store the application's state variables there. The Android developer reference, however, says that's not required: There is normally no need to subclass

2-Factor Authentication (2FA) systems use SMS to send the verification code very often. If the user is on his phone, the process could be simplified if the app reads the code from the SMS and logs the user in automatically. Here's how to do it in an Android App. Set