What is use of AndroidManifest.xml file?

AndroidManifest.xml file is responsible to protect the application from accessing any protected parts by providing the permissions. Every app project has an AndroidManifest.xml file which is also the root of the project source set. This file contains information about your package, Android operating system, the Android build tools, Google Play, and other including components of the application such as activities, content providers, services, broadcast receivers, etc.