When a new option is chosen, the previously chosen option is unselected.Ī radio button or option button is a graphical control element that allows the user to choose only one of a predefined set of mutually exclusive options.

First, specify an id for the ListView, and then set the width Both the height and the height are set to match_parent, so the Android Listview occupies the entire layout space.Four options on a radio button.

Then modify The code in activity_main.xml is as follows: Īdding the Android Listview control to the layout is quite simple. However, compared to the several controls introduced earlier, the usage of Android Listview is relatively more complicated, so we will use it separately Use one section to explain the Android Listview in great detail.įirst, create a new ListViewTest project, and let ADT automatically help us create a good activity. I believe you are actually using this control every day, such as viewing the mobile contact list, flipping through the latest news on Weibo, and so on. Android Listview allows users to Refers to the way of sliding up and down to scroll the data outside the screen to the screen, while the original data on the screen will scroll out of the screen. When there is a large amount of data to be displayed in the sequence, you can use Android Listview to achieve it. Since the screen space of mobile phones is relatively limited, there is not much content that can be displayed on the screen at one time. Improve the efficiency of Android Listview:Īndroid ListView can definitely be called one of the most commonly used controls in Android, and almost all applications will use it.

Customize the Android Listview interface:.

Android studio listview radio buttons