Technical Interview Questions
Application widgets are miniature application views that can be embedded in other applications and receive periodic updates. In Android, an application widget is a small, interactive, and frequently updated component that provides users with quick access to key information or actions from the home screen of their device without having to open the full application. … Read more
Android is a customized Linux 3.6 kernel. Android uses the Linux kernel as its core. The Linux kernel provides the fundamental system services such as process management, memory management, device management, and more, upon which the Android operating system is built. While Android itself is an operating system, it relies on the Linux kernel for … Read more
We can change bitmap images into nine sections with four corners, four edges, and an axis. In Android, a Nine-Patch image is a resizable bitmap resource that can be used as backgrounds or other images in Android applications. The term “Nine-Patch” refers to the way these images are divided into nine sections, where the outer … Read more
An adapter is used to create a child view to present the parent view items. In Android, an adapter is a bridge between the UI component (such as ListView, GridView, Spinner, etc.) and the data source that fills the UI component with data. It acts as a mediator that connects the data source with the … Read more
View Group is a collection of views and other child views. It is an invisible part and the base class for layouts. In Android, a ViewGroup is a special type of View that can contain other View objects. It is essentially a container that defines the layout structure for its child views. ViewGroup is a … Read more