<?xml version="1.0" encoding="utf-8"?> 
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
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    xmlns:app="http://schemas.android.com/apk/res-auto" 
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    android:id="@+id/activity_main" 
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    android:layout_width="match_parent" 
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    android:layout_height="match_parent" 
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    android:background="@color/colorBackground"> 
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    <com.dayu.baselibrary.view.TitleBar 
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        android:id="@+id/titleBar" 
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        android:layout_width="match_parent" 
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        android:layout_height="@dimen/dimen_title_height" 
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        android:background="@color/title_bar_bg" 
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        app:centerText="写卡" 
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        app:leftImage="@mipmap/icon_back" /> 
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    <TextView 
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        android:id="@+id/cardData" 
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        android:layout_width="match_parent" 
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        android:layout_height="wrap_content" 
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        android:layout_below="@id/titleBar" 
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        android:gravity="center" 
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        android:layout_marginTop="20dp" 
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        android:textSize="@dimen/text_size" /> 
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    <TextView 
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        android:id="@+id/textView" 
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        android:layout_width="match_parent" 
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        android:layout_height="wrap_content" 
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        android:layout_below="@id/cardData" 
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        android:layout_marginTop="20dp" 
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        android:gravity="center" 
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        android:text="请将卡贴在设备顶部进行写卡" 
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        android:textSize="@dimen/text_size" /> 
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    <ImageView 
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        android:layout_width="match_parent" 
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        android:layout_height="match_parent" 
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        android:layout_below="@id/textView" 
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        android:scaleType="center" 
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        android:src="@mipmap/nfc_write" /> 
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    <com.wang.avi.AVLoadingIndicatorView 
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        android:id="@+id/avi" 
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        style="@style/AVLoadingIndicatorView" 
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        android:layout_width="80dp" 
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        android:layout_height="80dp" 
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        android:layout_centerHorizontal="true" 
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        android:layout_centerVertical="true" 
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        android:visibility="gone" 
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        app:indicatorColor="@color/title_bg" 
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        app:indicatorName="BallClipRotatePulseIndicator" /> 
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</RelativeLayout> 
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