Radiobutton & RadioGroup in android kotlin |How to use Radio Buttons & Radio Group in Android Studio

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Издатель
In this video we will learn, how to use RadioButtons and RadioGroups. We will react to clicks and display our selection in a Toast message.
Radio Groups will make sure, that we can select only one Radio Button at a time.

Hi, in this video, I'll show you step-by-step, how to use RadioButton and RadioGroup in Android Studio.

You'll be able to design an XML layout that consists of a RadioGroup containing five radio buttons and two other normal buttons to clear the selection and to get the id of the current selected RadioButton in this group. When the Submit button is clicked, a Toast message is displayed based on which radio button is currently selected. The clear button clears the selection.

I'll also show you how to register a callback on RadioGroup and get a corresponding Toast message when we click a radio button for the first time or when the checked radio button changes in this group.

RadioButtons are helpful to implement multiple choice features into your app.
RadioButton & RadioGroup Tutorial With Example In Android Studio
In Android, RadioButton are mainly used together in a RadioGroup. In RadioGroup checking the one radio button out of several radio button added in it will automatically unchecked all the others. It means at one time we can checked only one radio button from a group of radio buttons which belong to same radio group. The most common use of radio button is in Quiz Android App code.

RadioButton
RadioButon is a two state button that can be checked or unchecked. If a radio button is unchecked then a user can check it by simply clicking on it. Once a RadiaButton is checked by user it can’t be unchecked by simply pressing on the same button. It will automatically unchecked when you press any other RadioButton within same RadioGroup
RadioGroup is a widget used in Android for the grouping of radio buttons and provide the feature of selecting only one radio button from the set. When a user try to select any other radio button within same radio group the previously selected radio button will be automatically unchecked.

Android - RadioGroup Control
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.
RadioGroup Attributes
important attributes related to RadioGroup control. You can check Android official documentation for complete list of attributes and related methods which you can use to change these attributes are run time.

Android | How to add Radio Buttons in an Android Application?
Android radio button is a widget which can have more than one option to choose from. The user can choose only one option at a time. Each option here refers to a radio button and all the options for the topic are together referred to as Radio Group. Hence, Radio Buttons are used inside a RadioGroup.


Android RadioButton
RadioButton is a two states button which is either checked or unchecked. If a single radio button is unchecked, we can click it to make checked radio button. Once a radio button is checked, it cannot be marked as unchecked by user.
RadioButton is generally used with RadioGroup. RadioGroup contains several radio buttons, marking one radio button as checked makes all other radio buttons as unchecked.
Example of Radio Button
In this example, we are going to implement single radio button separately as well as radio button in RadioGroup.


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Radiobutton & RadioGroup in android kotlin |How to use Radio Buttons & Radio Group in Android Studio
Radiobutton & RadioGroup in android kotlin |How to use Radio Buttons & Radio Group in Android Studio
Radiobutton & RadioGroup in android kotlin |How to use Radio Buttons & Radio Group in Android Studio

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Язык программирования Kotlin
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