<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rootView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/black"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical">

        <ImageView
            android:layout_width="@dimen/titleViewHeight"
            android:layout_height="@dimen/titleViewHeight"
            android:src="@mipmap/ic_launcher_foreground" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-black"
            android:text="@string/app_name"
            android:textColor="@color/white"
            android:textSize="@dimen/sp_20" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="@dimen/dp_275"
        android:layout_centerInParent="true"
        android:gravity="center"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="@dimen/dp_10"
            android:orientation="horizontal">

            <ImageView
                android:id="@+id/startCheckTagView"
                android:layout_width="@dimen/dp_150"
                android:layout_height="@dimen/dp_30"
                android:gravity="center"
                android:src="@drawable/ic_selected" />

            <ImageView
                android:id="@+id/checkHistoryTagView"
                android:layout_width="@dimen/dp_150"
                android:layout_height="@dimen/dp_30"
                android:layout_marginHorizontal="@dimen/dp_50"
                android:gravity="center"
                android:src="@drawable/ic_selected"
                android:visibility="invisible" />

            <ImageView
                android:id="@+id/libraryTagView"
                android:layout_width="@dimen/dp_150"
                android:layout_height="@dimen/dp_30"
                android:gravity="center"
                android:src="@drawable/ic_selected"
                android:visibility="invisible" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <LinearLayout
                android:id="@+id/startCheckButton"
                android:layout_width="@dimen/dp_150"
                android:layout_height="@dimen/dp_150"
                android:background="@drawable/view_item_border"
                android:gravity="center"
                android:orientation="vertical">

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/ic_main_start_check" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/dp_20"
                    android:fontFamily="sans-serif-black"
                    android:text="开始检查"
                    android:textColor="@color/white"
                    android:textSize="@dimen/sp_22" />
            </LinearLayout>

            <LinearLayout
                android:id="@+id/checkHistoryButton"
                android:layout_width="@dimen/dp_150"
                android:layout_height="@dimen/dp_150"
                android:layout_marginHorizontal="@dimen/dp_50"
                android:background="@drawable/view_item_border"
                android:gravity="center"
                android:orientation="vertical">

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/ic_main_check_history" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/dp_20"
                    android:fontFamily="sans-serif-black"
                    android:text="检查记录"
                    android:textColor="@color/white"
                    android:textSize="@dimen/sp_22" />
            </LinearLayout>

            <LinearLayout
                android:id="@+id/libraryButton"
                android:layout_width="@dimen/dp_150"
                android:layout_height="@dimen/dp_150"
                android:background="@drawable/view_item_border"
                android:gravity="center"
                android:orientation="vertical">

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:src="@drawable/ic_main_library" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/dp_20"
                    android:fontFamily="sans-serif-black"
                    android:text="知识库"
                    android:textColor="@color/white"
                    android:textSize="@dimen/sp_22" />
            </LinearLayout>
        </LinearLayout>
    </LinearLayout>
</RelativeLayout>