When you install an app, the system often adds an app icon on your
home screen. This icon works as a shortcut to run the app. In case you
need to manually add an app icon or a widget icon yourself, it's pretty
easy.
-
Tap the All Apps icon
on the tray.
-
Select the Apps or Widgets tab on the top.
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Touch and hold the icon you want to create a shortcut.
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Drag and drop the icon on a home screen you like.
To remove an icon from your home screen:
-
Touch and hold the icon of apps, widgets or shortcuts until the Remove icon appears on the top.
-
Drag and drop the icon over the Remove icon.
Note: On Android 2.x, you can add a shortcut icon by
touching and holding an empty location of a home screen or press Menu
then tap 'Add'; On Android 3.0, touch the customize button

at the top right of a home screen to add a shortcut icon.