To create a timer application, we have more options. For example we can use a Timer or a CountDownTimer.
Another application component can start a service, and it continues to run in the background even if the user switches to another application. Additionally, a component can bind to a service to interact with it. For example, a service can handle network transactions, play music, perform file I/O, or interact with a content provider, all from the background.
A notification is a message that Android displays outside your app’s UI to provide the user with reminders, communication from other people, or other timely information from your app. Users can tap the notification to open your app or take an action directly from the notification.
In most computer programming languages, a while loop is a control flow statement that allows code to be executed repeatedly based on a given Boolean condition. The while loop can be thought of as a repeating if statement.
When Expression in kotlin contains different cases block. when the program is run, each case is tested one by one from top to bottom. If any matching case is found, the code inside that case block is executed. After that, the code next to when block is executed.
In computer science, a relational and logical operators are a programming language constructs or operators which tests or defines some kind of relation between two entities. These include numerical equality (e.g., 5 = 5) and inequalities (e.g., 4 ≥ 3). In programming languages that include a distinct boolean data type in their type system, like Pascal, Ada, or Java, these operators usually evaluate to true or false, depending on if the conditional relationship between the two operands holds or not.