Change the Circle Color of Radio Button

Change the circle color of radio button

It is simpler just setting the buttonTint color (only works on API level 21 or above):

<RadioButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/radio"
    android:checked="true"
    android:buttonTint="@color/your_color"/>

In your values/colors.xml file, put your color, in this case a reddish one:

<color name="your_color">#e75748</color>

Result:

Colored Android Radio Button

If you want to do it by code (also API 21 and above):

if(Build.VERSION.SDK_INT >= 21)
{
    ColorStateList colorStateList = new ColorStateList(
            new int[][]
            {
                new int[]{-android.R.attr.state_enabled}, // Disabled
                new int[]{android.R.attr.state_enabled}   // Enabled
            },
            new int[]
            {
                Color.BLACK, // disabled
                Color.BLUE   // enabled
            }
        );

    radio.setButtonTintList(colorStateList); // set the color tint list
    radio.invalidate(); // Could not be necessary
}

How do I change the color of radio buttons?

A radio button is a native element specific to each OS/browser. There is no way to change its color/style, unless you want to implement custom images or use a custom Javascript library which includes images (e.g. this - cached link)

Android change circle color and textColor of radio button

If you want to change the text and color of the circles at the same time, follow these steps

1.add style below

<style name="radioButton" parent="AppTheme">
    <item name="colorControlNormal">#0f0</item>
    <item name="colorAccent">#f00</item>
  </style>

2.add this selector.xml to drawable

<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:color="#0f0" android:state_pressed="true" />
  <item android:color="#f00" android:state_checked="true" />
  <item android:color="#0f0" />
</selector>

3.add selector and style to RadioButton

 <RadioButton
            android:id="@+id/one"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="16dp"
            android:text="select"
            android:textColor="@drawable/selector"
            android:textSize="12sp"
            android:theme="@style/radioButton"
            app:useMaterialThemeColors="false" />

FULL CODE:

<RadioGroup
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_gravity="left"
          android:layout_margin="16dp"
          android:checkedButton="@+id/one"
          android:layoutDirection="ltr"
          android:orientation="horizontal">

          <RadioButton
            android:id="@+id/one"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="16dp"
            android:text="select"
            android:textColor="@drawable/selector"
            android:textSize="12sp"
            android:theme="@style/radioButton"
            app:useMaterialThemeColors="false" />

          <RadioButton
            android:id="@+id/two"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="not select"
            android:textColor="@drawable/selector"
            android:textSize="12sp"
            android:theme="@style/radioButton"
            app:useMaterialThemeColors="false" />
        </RadioGroup>

And Result

Sample Image

Note: I used Google Material

Is it possible to change the color of selected radio button's center circle

You can mimic the radio button using some round border trick (to render the outer circle) and the pseudo-element :before (to render the inner circle) which can fortunately be used on an input field of radio type:

input[type='radio'] {
  -webkit-appearance:none;
  width:20px;
  height:20px;
  border:1px solid darkgray;
  border-radius:50%;
  outline:none;
  box-shadow:0 0 5px 0px gray inset;
}

input[type='radio']:hover {
  box-shadow:0 0 5px 0px orange inset;
}

input[type='radio']:before {
  content:'';
  display:block;
  width:60%;
  height:60%;
  margin: 20% auto;    
  border-radius:50%;    
}
input[type='radio']:checked:before {
  background:green;
}

Working Demo.

How to to change the color of selected radio button's center circle

SCSS approach

The right way to do this is by looking at the variable $custom-radio-indicator-icon-checked in the Compass setup => \bootstrap\scss\_variables.scss.

$custom-radio-indicator-icon-checked: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='#{$custom-control-indicator-checked-color}'/%3E%3C/svg%3E"), "#", "%23") !default;

Here you can find the use of $custom-control-indicator-checked-color which points you to the option(s) of changing color and background-color.

$custom-control-indicator-checked-color: $component-active-color !default;
$custom-control-indicator-checked-bg: $component-active-bg !default;

Hence, changing $component-active-color or $component-active-bg.

$component-active-color: $white !default;
$component-active-bg: theme-color("primary") !default;

So you can change the color directly inside the variable or on component level to change all indicators of the following components:

custom checkbox
custom radio
dropdown
nav-pills
pagination
list-group

CSS approach

Now let's assume you don't have a SCSS setup and you're simply trying to override the color by CSS. You'll have to find the associated label's pseudo class :after.

.custom-radio .custom-control-input:checked~.custom-control-label::after {
    background-image: url(data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e);
}

Here you're looking for the fill property. The hash sign (#) was replaced by %23. Other than that it's a hexadecimal value. That's for the circle!

Changing the border-color and background-color for the checkbox itself is defined on the pseudo class :before:

.custom-control-input.is-valid:checked~.custom-control-label::before, 
.was-validated .custom-control-input:valid:checked~.custom-control-label::before {
    border-color: #34ce57;
    background-color: #34ce57;
}

Please note there's some additional weight (validation, state checked or not) to these selectors to make it work.

How to change checked color of Radio Button programmatically

Try this:

ColorStateList colorStateList = new ColorStateList(
        new int[][]{
                new int[]{-android.R.attr.state_enabled}, //disabled
                new int[]{android.R.attr.state_enabled} //enabled
        },
        new int[] {
                Color.BLACK, //disabled
                Color.BLUE //enabled
        }
    );

radio.setButtonTintList(colorStateList);

See: Change Circle color of radio button- Android

RadioButton set fill color of the circle

You can use custom layer

<android.support.v7.widget.AppCompatRadioButton
                        android:id="@+id/radioButton"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:checked="true"
                        android:text="Text"
                        android:button="@drawable/selector_radio"
                        android:textSize="16dp" />

selector_radio.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/radio_layer" android:state_checked="true"></item>
    <item android:drawable="@drawable/radio_ring_checked"></item>
</selector>

radio_layer.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:drawable="@drawable/radio_ring_checked"/>
    <item android:drawable="@drawable/radio_ring_unchecked"/>

</layer-list>

radio_ring_checked.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:innerRadiusRatio="4"
    android:shape="ring"
    android:thickness="2dp"
    android:useLevel="false" >

    <solid android:color="@color/ash" />

    <size
        android:height="30dp"
        android:width="30dp" />

</shape>

radio_ring_unchecked.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:innerRadiusRatio="1000"
    android:shape="ring"
    android:thickness="4dp"
    android:useLevel="false" >

    <solid android:color="@color/colorPrimaryButton" />

    <size
        android:height="18dp"
        android:width="18dp" />

</shape>

Change the Circle Color of Radio Button