crystal-wallet-android/app/src/main/res/layout/activity_tab.xml

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:weightSum="1">

            <LinearLayout
                android:layout_weight="1"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:orientation="horizontal"
                android:paddingLeft="0dp"
                android:paddingRight="0dp"
                android:gravity="bottom"
                android:background="@color/bottomBarColor">
                <TextView
                    android:id="@+id/tvAppVersion_TabActivity"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:background="@color/bottomBarColor"/>
                <TextView
                    android:background="@color/bottomBarColor"
                    android:id="@+id/tvBlockNumberHead_TabActivity"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="2"
                    android:gravity="center"/>
                <ImageView
                    android:id="@+id/ivSocketConnected_TabActivity"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.5"
                    android:layout_gravity="center"/>
                <ImageView android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.5"
                    android:layout_gravity="center"
                    android:src="@drawable/icon_setting"
                    android:id="@+id/OnClickSettings_TabActivity" />
            </LinearLayout>
        </LinearLayout>
    </LinearLayout>
</android.support.design.widget.CoordinatorLayout>