Remove the bottom line border in tab bar? (And change selected color)

just do this in your tabWidget in your xml file.

android:tabStripEnabled="false"

hope you get it. ;)

In AndroidManifest.xml:

 <activity android:name=".ActivityName" android:theme="@style/tabTheme"/> 

In values/styles.xml:

 <style name="tabTheme" parent="android:style/Theme"> 
      <item name="android:tabWidgetStyle">@style/Widget.TabWidget</item>
 </style> 

 <style name="Widget.TabWidget" parent="android:Theme"> 
      <item name="android:tabStripEnabled">false</item>
 </style>  

you have customize your tab indicator. that is to overriding your tabwidget style. I had this problem already. check these two posts. post1 and post2 . Hope it helps.

android:tabStripEnabled="false" didnt work for me
By doing the following i was able to get it working

<android.support.design.widget.TabLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabIndicatorColor="@android:color/transparent"
        app:tabIndicatorHeight="0dp" />

These 2 are the main things

 app:tabIndicatorColor="@android:color/transparent"
            app:tabIndicatorHeight="0dp"