pda/zhuike/src/main/res/layout/fragment_shudan.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Fragments.Fragment_shudan">
<LinearLayout
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

 >

    <!-- TODO: Update blank fragment layout -->

    <com.flyco.tablayout.SlidingTabLayout
        android:id="@+id/tab_layout2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="4dp"
        android:paddingBottom="2dp"
        android:background="@color/white"
        app:tl_indicator_color="@color/tabSelected"
        app:tl_indicator_corner_radius="1.5dp"
        app:tl_indicator_height="0dp"
        app:tl_indicator_width="0dp"
        app:tl_textSelectColor="@color/tabSelected"
        app:tl_textUnselectColor="@color/grey"
        app:tl_tab_space_equal ="true"
        app:tl_textsize="13sp"
        />

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="45dp"

        >
        <!-- <android.support.design.widget.TabLayout
            android:id="@+id/tab_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabMode="fixed"/>
          -->
    </android.support.v4.view.ViewPager>

</LinearLayout>

    <android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_marginRight="@dimen/fab_margin"
    android:layout_marginBottom="60dp"
    app:srcCompat="@android:drawable/ic_input_add" />
</android.support.design.widget.CoordinatorLayout>