select and delete item from listview android studio

Each list item contains a line of text and an ImageButton showing a dustbin icon that can be clicked to remove the item from the list. The App consists of a single Activity ( MainActivity) for the ListView (with a custom item layout defined in XAML ( ListViewItemLayout.axml).

Note that the C#/.NET (Xamarin) cross platform mobile development feature should be already installed in Visual Studio as described here. You can download the article's full source code but if you want to start from scratch, open Visual Studio 2015 and select File -> New Project -> Android -> Blank App (Android). Also, any previous experience with the component is a plus.

BackgroundĮven though the code is very simple and straightforward, familiarity with the Xamarin native Android for Visual Studio 2015 tool is assumed. The same recipe applies to adding new items to the list, as well. In this article, I build a very simple Xamarin native Android App to demonstrate how to properly use the NotifyDataSetChanged method of the ListViewAdapter to remove items from a ListView. On the contrary, there are more than enough forum and blog posts demonstrating the wrong usage of the ListViewAdapter's NotifyDataSetChanged method leading to both ListView and App unpredictable behavior. Nevertheless, there seems to be no information or official documentation on how to properly use the notification methods of the ListViewAdapter to make the ListView aware of data changes such as a deletion or insertion of an item.

It is easy to find lots of information, samples and forum posts on how to set it up, customize it and populate it with data.

The ListView is one of the most important and commonly used components in the Android platform.

Select and delete item from listview android studio