Launching from Two Entry Points

Every application must have at least one entry point — a way for the user or system to access activities inside the application. Each icon in the application launcher at home represents an entry point. Applications can also from another application. Each activity is a potential entry point into the application.

choose the Contacts icon to launch the Contacts activity, then pick a phone number to launch the Dialer activity and dial the phone.

Once the user is inside the application, they can access other activities, such as New Contact and Edit Contact, through tabs, menu items, list items, onscreen buttons, or other user interface controls.

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