How do you check whether a RadioGroup is checked or not?
here you go. Use getCheckedRadioButtonId() method on your RadioGroup to find out. It returns -1 when no RadioButton in the group is selected. You are already doing this.
What does getCheckedRadioButtonId return?
getCheckedRadioButtonId() will return unknown value.
What is the purpose of radio button?
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. If it’s not necessary to show all options side-by-side, use a spinner instead.
How do you add gender in HTML?
Radio buttons are created with the HTML tag….Basic Radio Button Example.
| Source Code | Result |
|---|---|
| Male Female | Male Female |
How do you use RadioGroup in flutter?
Flutter Radio Button
- Let us see how we can create radio buttons in the Flutter app through the following steps:
- Step 1: Create a Flutter project in the IDE.
- Step 2: Open the project in Android Studio and navigate to the lib folder.
- groupValue: It is used to specify the currently selected item for the radio button group.
What is the use of RadioGroup in Android Studio?
This class is used to create a multiple-exclusion scope for a set of radio buttons. Checking one radio button that belongs to a radio group unchecks any previously checked radio button within the same group. Intially, all of the radio buttons are unchecked.
Why is it called radio button?
Radio buttons are so called because they function like the channel presets on radios. A typical group of radio buttons. A group of radio buttons behaves like a single control. Only the selected choice is accessible using the Tab key, but users can cycle through the group using the arrow keys.
How do I disable RadioGroup on Android?
RadioGroup cannot be disabled directly, we have to loop through the radio button and setEnabled as false….
- It is nice to know that the “dirty hack” I did seems to be the actual way of doing it. :D.
- Setting enabled as false hides the radio button’s “radio”.
What is RadioGroup why we need to use it explain with example?
A RadioGroup class is used for set of radio buttons. If we check one radio button that belongs to a radio group, it automatically unchecks any previously checked radio button within the same group.
How do you make a gender button?
A radio button is a form element that allows the user to select one option from a range of options. Radio buttons are created with the HTML tag….Basic Radio Button Example.
| Source Code | Result |
|---|---|
| Male Female | Male Female |