How to Create a Login Activity

Here is the logic for the Login_Button clicked event:. If the user enters the Username/Password, validate the length. If they’re both greater than 0, we want to retrieve the information from the data we previously saved. If valid, log the user in, otherwise show an error message.

Last but not least, this is the screen that shows up when the login is complete. Pretty simple right? Even though I didn’t apply this concept, you could possibly pass the username through the Intent if you’d like and welcome the user with the message “Welcome username!”. Just a thought :-) 

Most applications today have an authorization system in forms of Facebook login, Google login, plain old email login, and more. In fact, Sketchware uses Google Login in the application as well. Having an authorization system is a great way to keep users organized. Today, we’ll learn how to create a basic username/password login system on Sketchware.

Clicking on the Sign-up button leads us to the SignupActivity, which looks something like this. This page has one purpose — signing up the user with the provided information.