Android Programming: The Big Nerd Ranch Guide

Creating Explicit Intents at Runtime

You used an implicit intent to gather the desired activities and present them in a list. The next step is to start the selected activity when the user presses its list item. You will start the activity using an explicit intent.

To create the explicit intent, you need more data from the ResolveInfo. In particular, you need the activity’s package name and class name. You can get this data from a part of the ResolveInfo called ActivityInfo. (You can learn what data is available in different parts of ResolveInfo from its reference page.)

In NerdLauncherFragment.java, override onListItemClick(…) to get the ActivityInfo for the list item. Then use its data to create an explicit intent that will start the activity. ...