Android radio button

1. What is radio button in android?
2. How to set radio button in android?
3. How to get radio button text in android?
4. How to select only one radio button in android?

What is radio button in android?

Radio buttons allow the user to select one option from a set. You should use radio buttons for optional sets that are mutually exclusive if you think that the user needs to see all available options side-by-side.

How to set radio button in android?

Open “res/layout/main. xml” file, add “RadioGroup“, “RadioButton” and a button, inside the LinearLayout . Radio button selected by default. To make a radio button is selected by default, put android:checked="true" within the RadioButton element.

How to get radio button text in android?

To get the selected radio button, we have used radioGroup. getCheckedRadioButtonId() method, which returns the id of the selected radio button. Then to get the text of the selected radio button, we have used getText() method on that selected radio button.

How to select only one radio button in android?

You can use android:checkedButton attribute on RadioGroup, providing the id of the RadioButton you want to be checked initially and selecting another RadioButton will clear the previous selection. Save this answer.