Intro What to do when you need to start an activity just to get some data from this activity and then go back to your previous activity. When you want to send a message and you go to your list of contacts just to select a contact and then goRead More →
Intro As we said in a previous post most applications today contain multiple screens, which means they are compiled from multiple activities. We have already created an exercise to see in action switching between two simple activities. Now we will see the process of passing data between two activities withRead More →
Intro In a previous post we got our self’s introduced to the concept of activities in android. As we said the Activity is one of the four basic app components in Android, it is the entry point for interacting with the user. It represents a single screen with a userRead More →
In this exercise we are going to create a new project and in MainActivity we will override all of the basic Lifecycle callback methods. The idea is for each of the basic callback method to display a message to the user that method is called so we can see theRead More →