Nat IT Solved Android Developer Interview Questions, Process, and Tips

Android is an open-source mobile operating system developed by Google for smartphones, tablets, and other devices.

• Developed by Google

• Based on the Linux kernel

• Supports a wide range of applications and games

• Customizable user interface

• Example: Samsung Galaxy S21 runs on Android

Services are used in Android to perform long-running operations in the background without affecting the user interface.

• Services help in running tasks in the background even when the app is not in the foreground.

• They can be used for tasks like playing music, downloading files, or fetching data from a server.

• Services can be started or bound to activities based on the requirements of the app.

Job scheduler is a component in Android that allows you to schedule tasks to be run at specified times or intervals.

• Job scheduler is used to schedule background tasks that need to be run periodically or under certain conditions.

• It helps in optimizing battery life by grouping tasks and running them when the device is idle.

• You can set constraints like network availability, charging status, and device idle state for the s...read more

To play music in background on Android, use a Service class to handle playback and manage audio focus.

• Create a Service class to handle music playback in the background.

• Request audio focus to ensure your app can play music even when other apps are using audio.

• Use MediaPlayer or ExoPlayer to play audio files.

• Handle media controls and notifications to allow users to control playback from the notification shade.