BadgedTabLayout

Did you see those small badges indicating new messages count in WhatsApp near your chats? You can achieve the same result using this library. It is created to add small circled badges in tab layout.

Screen

Installation

allprojects {
 repositories {
   ...
   maven { url 'https://jitpack.io' }
  }
}

dependencies {
  compile 'com.github.rahimlis:badgedtablayout:v1.0'
}

Usage

Add BadgedTabLayout as if you added TabLayout itself

<android.support.design.widget.AppBarLayout ...>
  
  <android.support.v7.widget.Toolbar ... />
    
  <com.rahimlis.badgedtablayout.BadgedTabLayout
       android:id="@+id/tabs"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       app:badgeBackgroundColor="@color/badge_background_color"
       />

  </android.support.design.widget.AppBarLayout>

then in java do:

BadgedTabLayout tabLayout = (BadgedTabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);

to set text of the badge use:

  //first parameter is the tab index, at which badge should appear
  tabLayout.setBadgeText(1,"1");
  //if you want to hide a badge pass null as a second parameter
  tablayout.setBadgeText(0,null);

Note: by default badges are hidden. You need to set some text to show it up.

Customization

you can customize tab text colors as if you would do it for tabLayout

app:tabTextColor="@color/your_unselected_text_color"
app:tabSelectedTextColor="@color/your_selected_text_color"

additionally you can change badge background color, as well as badge text color and text size

app:tabTextColor="@color/your_unselected_text_color"
app:tabSelectedTextColor="@color/your_selected_text_color"
app:badgeTextColor="@color/your_selected_color"
app:badgeSelectedTextColor="@color/your_selected_color"
app:badgeBackgroundColor="@color/your_selected_color"
app:badgeSelectedBackgroundColor="@color/your_selected_color"
app:badgeTextSize="11sp"

another way to do this is to create color state list and pass it to corresponding field:

<!-- file badge_background_color.xml / badge_text_color.xml at color directory -->
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="#ff0" android:state_selected="true" />
    <item android:color="#f0f" android:state_selected="false" />
</selector>

then:

app:badgeBackgroundColor="@color/badge_background_color"
app:badgeTextColor="@color/badge_text_color"

you also can change every property programmatically, look at class documentation for more information.

Contribution

Feel free to make pull requests and open issues if you meet any.
Please add your app name if you use this library in the issues. I will add your app into the list.