An Android application uses its Main Application Thread ( also known as the UI thread), to perform most of the callbacks in the application. Therefore, an overload in the Main thread leads to an “Application Not Responding” (ANR) error.
Passing data between Activities in Android is pretty simple than you think with the use of Intent. Intent As the name implies, Intent is “an intention to do something”. An intent can be used in several use cases.
Introduction to Android Android is an Open source Operating system, specifically designed for mobile applications which is developed by Google. Android is based on Linux Operating system. Android applications can be developed in a Java environment. How Android works Let’s see how Android works from inside.