我正在尝试使用3张卡片和标题创建简单的布局。 3张卡应该全部在一行中，但中间的卡应该更大（它应该具有比其他两个更大的高度和重量）并且应该重叠头部。默认情况下，在bs4中创建的所有卡都是相同的。我应该为每张卡设置属性吗？你能帮帮我吗？感谢。
以下是plunker link
<header role="banner" class="header-test">
<h1>Test layout</h1>
</header>
<div class="row">
<div class="col-3">
<div class="card custom-card-style">
<div class="card-block">
<h4 class="card-title">Card title</h4>
<h6 class="card-subtitle mb-2 text-muted">Card subtitle</h6>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's
content.</p>
<a href="#" class="card-link">Card link</a>
<a href="#" class="card-link">Another link</a>
</div>
</div>
</div>
<div class="col-6">
<div class="card custom-center-card-style">
<div class="card-block">
<h4 class="card-title">Card title</h4>
<h6 class="card-subtitle mb-2 text-muted">Card subtitle</h6>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's
content.</p>
<a href="#" class="card-link">Card link</a>
<a href="#" class="card-link">Another link</a>
</div>
</div>
</div>
<div class="col-3">
<div class="card custom-card-style">
<div class="card-block">
<h4 class="card-title">Card title</h4>
<h6 class="card-subtitle mb-2 text-muted">Card subtitle</h6>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's
content.</p>
<a href="#" class="card-link">Card link</a>
<a href="#" class="card-link">Another link</a>
</div>
</div>
</div>
</div>
答案 0 :(得分：0)
使用此功能非常有效。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relative"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="@+id/topRl"
android:layout_width="match_parent"
android:layout_height="56dp"
android:background="@color/white">
<Button
android:id="@+id/backBtn"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_centerVertical="true"
android:layout_marginLeft="15dp"
android:background="@drawable/back_arrow" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:gravity="center"
android:text="@string/register_heading"
android:textColor="@color/black"
android:textSize="@dimen/text_size_for_heading" />
</RelativeLayout>
<ImageView
android:layout_width="match_parent"
android:layout_height="3px"
android:background="@drawable/shadow_down"
/>
<ScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/mainLinear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:gravity="center_horizontal"
android:orientation="vertical">
<Button
android:id="@+id/registerWithFacebookBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="20px"
android:background="@drawable/blue_dark_btn_selector"
android:text="@string/register_with_facebook"
android:textColor="@drawable/white_color_selector"
android:textSize="@dimen/text_18sp" />
<LinearLayout
android:id="@+id/etLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:gravity="center_horizontal"
android:orientation="vertical"
>
<EditText
android:id="@+id/firstNameEt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/first_name"
android:imeOptions="actionNext"
android:inputType="textPersonName|textNoSuggestions|textCapSentences"
android:maxLines="1"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<EditText
android:id="@+id/lastNameEt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5px"
android:hint="@string/last_name"
android:inputType="textPersonName|textNoSuggestions|textCapSentences"
android:maxLines="1"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<!--<RelativeLayout
android:id="@+id/rlCountryCode"
android:layout_width="150px"
android:layout_height="@dimen/edit_text_height"
android:layout_alignParentLeft="true">
<TextView
android:id="@+id/tvCountryCode"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="5px"
android:background="@drawable/edit_text_bg"
android:gravity="center"
android:paddingLeft="20px"
android:paddingRight="20px"
android:singleLine="true"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textSize="@dimen/text_size_edit_text" />
<Button
android:id="@+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="14px"
android:layout_height="11px"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="10px"
android:background="@drawable/down_arrow_btn_selector"
android:clickable="false"
android:duplicateParentState="true" />
</RelativeLayout>-->
<EditText
android:id="@+id/phoneNoEt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginTop="5px"
android:layout_toRightOf="@+id/rlCountryCode"
android:digits="0123456789"
android:hint="@string/phone_number"
android:inputType="phone|textNoSuggestions"
android:maxLength="10"
android:singleLine="true"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<EditText
android:id="@+id/emailIdEt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5px"
android:hint="@string/email_id"
android:inputType="textEmailAddress"
android:singleLine="true"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<EditText
android:id="@+id/passwordEt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5px"
android:hint="@string/password"
android:inputType="textPassword"
android:singleLine="true"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<EditText
android:id="@+id/confirmPasswordEt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5px"
android:hint="@string/confirm_password"
android:inputType="textPassword"
android:singleLine="true"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<EditText
android:id="@+id/aboutUsET"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5px"
android:hint="@string/hear_about_us"
android:inputType="textEmailAddress"
android:singleLine="true"
android:textColor="@color/edit_text_text_color"
android:textColorHint="@color/edit_text_hint_color"
android:textCursorDrawable="@drawable/color_cursor"
android:textSize="@dimen/text_size_edit_text" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="3dp"
android:layout_marginLeft="20px"
android:layout_marginRight="20px"
android:paddingTop="5dp">
<CheckBox
android:id="@+id/agree_chk"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:button="@drawable/check_box_selector"
android:padding="5dp"
android:text="@string/agree_text"
android:textColor="@color/black"
android:textSize="12sp"
android:textStyle="bold"/>
<TextView
android:id="@+id/terms_of_use_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/terms_of_use"
android:textColor="@color/black"
android:textSize="12sp"
android:textStyle="bold" />
<TextView
android:id="@+id/and_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:text="and"
android:textColor="@color/black"
android:textSize="12sp"
android:textStyle="bold"/>
</LinearLayout>
<TextView
android:id="@+id/privacy_policy_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:layout_marginLeft="40dp"
android:text="@string/privacy_policy"
android:textColor="@color/black"
android:textSize="12sp"
android:textStyle="bold" />
</LinearLayout>
<Button
android:id="@+id/signUpBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/btn_corner_margin"
android:layout_marginTop="@dimen/btn_corner_margin"
android:background="@drawable/blue_dark_btn_selector"
android:text="@string/register"
android:textColor="@drawable/btn_text_color_selector"
android:textSize="@dimen/button_text_size"
/>
</LinearLayout>
</ScrollView>
</LinearLayout>