This tutorial will show you how to add and use ToggleButton elements for Android apps in Xamarin. ToggleButtons are like on/off switches that only have two possible states and can only be in one state at any one time.
Toggle buttons in an app look like this:
To get started, create an Android app solution in Xamarin and open the Main.axml file from the Resources > layout folder. Drag a ToggleButton element on to the screen from the toolbox and give it an Id (eg. @+id/toggleButton1).
The default text for a ToggleButton that is on is “ON” and the default text for a ToggleButton that is off is “OFF”. However, you can change this from the Properties panel.
Add a Text (Medium) element to the screen that will display a change in result (eg. ToggleButton switching from off to on). This example TextView is named @+id/resultTextView1.
Save the Main.axml file and go to the MainActivity.cs file. Define and set up the ToggleButton and TextView elements in the code and add a CheckedChange method which checks when a change in state is detected. The if statement will check if the ToggleBox is checked and will display the result.
Now go and test your app and this is what it should look like…