Widgets and apps are separate types of programs that run on an Android phone and they serve different purposes. Widgets are basically self-contained mini programs that live and run on the phone's home screen. ... Apps, on the other hand, are typically programs you tap open and run.
In Android, the word widget is a generic term for a bit of self-contained code that displays a program, or a piece of a program, that is also (usually) a shortcut to a larger application. ... Both types are very useful, and it's pretty common to see a widget or two on the home screen of any Android phone.
Widgets are an essential aspect of home screen customization. You can imagine them as "at-a-glance" views of an app's most important data and functionality that is accessible right from the user's home screen. ... To start building an app widget, read Build an App Widget.
Tap Edit Stack. From here, you can reorder the widgets in the stack by dragging the grid icon. . You can also turn on Smart Rotate if you want iOS to show you relevant widgets throughout the day. Or swipe left over a widget to delete it.
Touch and hold the icon you want to customize, then release the icon. A blue frame appears around the icon if it can be resized and changed into a widget (if it can't, only the Edit icon is displayed).
Drag the corners of the frame to make it larger and change it into a widget.