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android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:background="@drawable/apartment"/>
<TextView <!-- “Outside APP” 문구를 표시하는 TextView -->
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:text="Outside APP"
android:textSize="30sp"
android:textStyle="bold"
android:textColor="#ffffff"/>
</LinearLayout>
</android.support.constraint.ConstraintLayout>

처음 어플을 시작 시 나오는 로딩화면이다.

타. activity_main

<?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:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.jbtc_01_06.outside.MainActivity">

<!-- 화면 상단을 차지하는 AppBar. Toolbar 와 TabLayout 으로 구성됨 -->
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar <!-- 어플리케이션 최상단의 Toolbar -->
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#AAF68800"
app:layout_scrollFlags="scroll|enterAlways">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout <!-- Tab 을 표시하는 Layout -->
android:id="@+id/tabs"
android:layout_width="match_parent"

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