dependencies {
    compile 'org.xdty.preference:color-picker:0.0.4'
}

<dependency>
  <groupId>org.xdty.preference</groupId>
  <artifactId>color-picker</artifactId>
  <version>0.0.4</version>
  <type>aar</type>
</dependency>

<org.xdty.preference.ColorPreference
    android:key="example_color"
    android:title="Color"
    android:summary="This is a color preference"
    tools:dialogTitle="@string/default_color"
    tools:colors="@array/default_rainbow"
    tools:columns="5"
    android:defaultValue="@color/flamingo"/>