small_sheep_android/app/src/main/res/layout/act_msg.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/white"
    android:fitsSystemWindows="true"
    android:orientation="vertical">

    <android.support.v4.view.ViewPager
        android:id="@+id/act_msg_vp"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>