In this episode we pick off right where we left last time. So far we developed small applications that had one single activity. In the last tutorial we had a look at how to call other activities that are provided by other Android applications. If you want to know how to create your very own activity and how to incorporate it into your application, well, read on.

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The question came up if there is a simple way to sort lists and since the next video tutorial is dealing with Intents and not so much with lists, I thought I could just slip in this little quick tip that explains the basic method of sorting lists. There are actually two ways to achive a sorted list: you can sort the underlying data source or you can sort the elements in the actual list adapter. Lets see how that is done.

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It is usually not very satisfying to have an application that consists of just one lonely activity. To start another activity you can use so-called Intents. In this tutorial I want to give you a brief overview of what Intents are and how to use them. We will start out very simple here and will work our way up in future tutorials. The purpose of this introduction is to show you some very basic sample uses of Intents.

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In this tutorial we will take a look at how to use ItemClickListeners within ListViews. For this episode we will extend the application we created in episode #7. When the user short-clicks on a list item, a small Toast mesage displays, indicating the list item that has been clicked on. A long-click on a list item can be used to remove that item from the list.

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In this episode we will take a look at the Alert Dialog. This dialog lets the user interact with your application and the great thing is, that it is also very easy to implement. You can use this dialog in many situations. Asking the user to confirm an action before executing it, is actually a good habit that will make your application look and feel more professional.

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In this episode we will take a look at how to notify the user by using Toast messages. These messages are small, unobstrusive notifications that can be used in all kinds of different situations. They are quite elegant and very easy to use.

We will also take a second look at button listeners by introducing the OnLongClickListener. All in all we will create a nice application that is fun to play around with and that invites you to customize it in any way you like.

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