如何在底部使Button重叠CardView

Isa*_*ina 2 android android-layout android-xml android-cardview

我正在创建一个显示公告的应用程序,我想添加一个登录信息.我正在尝试制作这个XML设计,图片.我想按钮OVERLAP在底部,它的中心CardView.如果有必要,我将更改文件的根目录.

这是我的XML代码:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:background="#fff"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.crescendo.lldm.crescendo.A_Login">

    <RelativeLayout
        android:id="@+id/rl_one_login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <View
            android:id="@+id/v_one_login"
            android:background="@drawable/gradient_background_one"
            android:layout_width="match_parent"
            android:layout_height="300dp" />

        <RelativeLayout
            android:layout_marginTop="90dp"
            android:id="@+id/rl_two_login"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:textStyle="bold"
                android:id="@+id/tv_one_login"
                android:textSize="32sp"
                android:textAlignment="center"
                android:textColor="@color/colorWhite"
                android:text="C R E S C E N D O"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:layout_below="@+id/tv_one_login"
                android:textSize="15sp"
                android:textAlignment="center"
                android:textColor="@color/colorWhite"
                android:text="FOR THE USA MONUMENTAL CHOIR"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </RelativeLayout>

    </RelativeLayout>

    <android.support.v7.widget.CardView
        app:cardUseCompatPadding="false"
        app:cardPreventCornerOverlap="false"
        android:id="@+id/cv_one_login"
        app:cardBackgroundColor="#fcfcfc"
        android:layout_marginTop="240dp"
        card_view:cardElevation="10dp"
        app:cardCornerRadius="10dp"
        android:elevation="10dp"
        android:layout_centerHorizontal="true"
        android:layout_width="360dp"
        android:layout_height="280dp">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        </RelativeLayout>

    </android.support.v7.widget.CardView>

    <Button
        android:layout_marginTop="197dp"
        android:layout_below="@+id/rl_one_login"
        android:layout_centerHorizontal="true"
        android:elevation="15dp"
        app:backgroundTint="@color/colorPrimary"
        android:layout_width="250dp"
        android:layout_height="50dp" />

</RelativeLayout>
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这是我在XML设计中得到的,IMAGE2希望有一个解决方案.谢谢!

Nil*_*hod 8

试试下面的布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:card_view="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">


    <View
        android:layout_width="match_parent"
        android:layout_height="250dp"
        android:background="@color/colorAccent" />

    <RelativeLayout
        android:id="@+id/rl_two_login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="90dp">

        <TextView
            android:id="@+id/tv_one_login"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="C R E S C E N D O"
            android:textAlignment="center"
            android:textColor="#ffffff"
            android:textSize="32sp"
            android:textStyle="bold" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/tv_one_login"
            android:text="FOR THE USA MONUMENTAL CHOIR"
            android:textAlignment="center"
            android:textColor="#ffffff"
            android:textSize="15sp" />

    </RelativeLayout>

    <LinearLayout
        android:layout_marginTop="-50dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">


            <android.support.v7.widget.CardView
                android:id="@+id/cv_one_login"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="240dp"
                android:elevation="10dp"
                app:cardBackgroundColor="#fcfcfc"
                app:cardCornerRadius="10dp"
                app:cardElevation="10dp"
                app:cardPreventCornerOverlap="false"
                app:cardUseCompatPadding="true">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="vertical">

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:padding="10dp"
                        android:text="Nilu" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:padding="10dp"
                        android:text="Nilu" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:padding="10dp"
                        android:text="Nilu" />


                </LinearLayout>

            </android.support.v7.widget.CardView>
        </RelativeLayout>

        <Button
            android:layout_width="250dp"
            android:layout_height="50dp"
            android:layout_below="@id/cv_one_login"
            android:layout_centerHorizontal="true"
            android:layout_gravity="center"
            android:layout_marginTop="-35dp"
            android:elevation="15dp" />


    </LinearLayout>

</RelativeLayout>
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OUTPUT

在此输入图像描述


小智 7

使用 ConstraintLayout 这个问题可以解决:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white">

    <View
        android:id="@+id/view_blank"
        android:layout_width="match_parent"
        android:layout_height="260dp"
        android:background="@color/colorPrimary"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"/>

    <ImageView
        android:id="@+id/image_logo"
        android:layout_width="90dp"
        android:layout_height="90dp"
        android:layout_marginTop="80dp"
        android:src="@drawable/ic_action_facebook"
        android:tint="@android:color/white"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"/>


    <android.support.constraint.ConstraintLayout
        android:id="@+id/credentials_card"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_marginTop="20dp"
        android:padding="@dimen/spacing_mlarge"
        app:layout_constraintTop_toBottomOf="@+id/image_logo"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent">


        <android.support.v7.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="@dimen/spacing_medium"
            android:visibility="visible"
            app:cardUseCompatPadding="true"
            app:cardCornerRadius="6dp"
            app:cardElevation="5dp"
            tools:ignore="MissingConstraints">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:padding="@dimen/spacing_xmlarge">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_horizontal"
                    android:layout_marginBottom="25dp"
                    android:text="SIGN IN"
                    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"
                    android:textColor="@color/colorAccent"
                    android:textStyle="bold" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="USERNAME"
                    android:textAlignment="center"
                    android:textAppearance="@style/Base.TextAppearance.AppCompat.Caption"
                    android:textColor="@color/colorPrimary" />

                <android.support.design.widget.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="text"
                    android:maxLength="50"
                    android:maxLines="1"
                    android:singleLine="true"
                    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"
                    android:textColor="@color/colorPrimary"
                    android:textStyle="bold"
                    android:theme="@style/EditText.Grey" />


                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="20dp"
                    android:text="PASSWORD"
                    android:textAlignment="center"
                    android:textAppearance="@style/Base.TextAppearance.AppCompat.Caption"
                    android:textColor="@color/colorPrimary" />

                <android.support.design.widget.TextInputEditText
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:inputType="textPassword"
                    android:maxLength="50"
                    android:maxLines="1"
                    android:singleLine="true"
                    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"
                    android:textColor="@color/colorPrimary"
                    android:textStyle="bold"
                    android:theme="@style/EditText.Grey" />


            </LinearLayout>

        </android.support.v7.widget.CardView>

    </android.support.constraint.ConstraintLayout>

    <Button
        android:id="@+id/sign_up"
        android:layout_width="match_parent"
        android:layout_height="57dp"
        android:layout_marginLeft="50dp"
        android:layout_marginRight="50dp"
        android:background="@drawable/btn_rounded_primary"
        android:text="S I G N  I N"
        android:textAllCaps="false"
        android:textColor="@android:color/white"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="@+id/credentials_card"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"/>


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:layout_marginTop="20dp"
        android:text="FORGET PASSWORD"
        android:textAppearance="@style/Base.TextAppearance.AppCompat.Subhead"
        android:textColor="@color/grey_40"
        android:textStyle="bold"
        app:layout_constraintTop_toBottomOf="@+id/sign_up"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"/>


</android.support.constraint.ConstraintLayout>
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这是btn_rounded_primary

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">

        <layer-list>
            <item android:bottom="4dp" android:left="4dp" android:right="4dp" android:top="4dp">
                <shape android:shape="rectangle">
                    <corners android:bottomLeftRadius="30dp" android:bottomRightRadius="30dp" android:radius="60dp" android:topLeftRadius="30dp" android:topRightRadius="30dp" />
                    <solid android:color="@color/colorPrimaryDark" />
                    <padding android:bottom="0dp" android:left="0dp" android:right="0dp" android:top="0dp" />
                    <size android:width="110dp" android:height="40dp" />
                </shape>
            </item>
        </layer-list>

    </item>
    <item android:state_focused="true">

        <layer-list>
            <item android:bottom="4dp" android:left="4dp" android:right="4dp" android:top="4dp">
                <shape android:shape="rectangle">
                    <corners android:bottomLeftRadius="30dp" android:bottomRightRadius="30dp" android:radius="60dp" android:topLeftRadius="30dp" android:topRightRadius="30dp" />
                    <solid android:color="@color/colorPrimaryDark" />
                    <padding android:bottom="0dp" android:left="0dp" android:right="0dp" android:top="0dp" />
                    <size android:width="110dp" android:height="40dp" />
                </shape>
            </item>
        </layer-list>

    </item>

    <item>

        <layer-list>
            <item android:bottom="4dp" android:left="4dp" android:right="4dp" android:top="4dp">
                <shape android:shape="rectangle">
                    <corners android:bottomLeftRadius="30dp" android:bottomRightRadius="30dp" android:radius="60dp" android:topLeftRadius="30dp" android:topRightRadius="30dp" />
                    <solid android:color="@color/colorPrimary" />
                    <padding android:bottom="0dp" android:left="0dp" android:right="0dp" android:top="0dp" />
                    <size android:width="110dp" android:height="40dp" />
                </shape>
            </item>
        </layer-list>

    </item>
</selector>
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这是 dimens.xml:

<!--genaral spacing-->
<dimen name="spacing_xsmall">2dp</dimen>
<dimen name="spacing_small">3dp</dimen>
<dimen name="spacing_medium">5dp</dimen>
<dimen name="spacing_xmedium">7dp</dimen>
<dimen name="spacing_middle">10dp</dimen>
<dimen name="spacing_large">15dp</dimen>
<dimen name="spacing_smlarge">18dp</dimen>
<dimen name="spacing_mlarge">20dp</dimen>
<dimen name="spacing_mxlarge">25dp</dimen>
<dimen name="spacing_xlarge">35dp</dimen>
<dimen name="spacing_xmlarge">40dp</dimen>
<dimen name="spacing_xxlarge">50dp</dimen>
<dimen name="spacing_xxxlarge">55dp</dimen>
<dimen name="appbar_padding_top">8dp</dimen>
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颜色文件

<color name="grey_3">#f7f7f7</color>
<color name="grey_5">#f2f2f2</color>
<color name="grey_10">#e6e6e6</color>
<color name="grey_20">#cccccc</color>
<color name="grey_40">#999999</color>
<color name="grey_60">#666666</color>
<color name="grey_80">#37474F</color>
<color name="grey_90">#263238</color>
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使用 ConstraintLayout 输出:

使用 ConstraintLayout 输出


Nic*_*lio 5

您可以使用约束布局库和设计选项卡轻松完成此操作。

示例照片

这是代码,但我在设计选项卡中完成了大部分工作。

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.CardView
        android:id="@+id/credentials_card"
        android:layout_width="150dp"
        android:layout_height="250dp"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.281">

        <android.support.constraint.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <EditText
                android:id="@+id/username_field"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="8dp"
                android:layout_marginStart="8dp"
                android:layout_marginTop="48dp"
                android:hint="Username"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintHorizontal_bias="0.511"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <EditText
                android:id="@+id/passworld_field"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginEnd="8dp"
                android:layout_marginStart="8dp"
                android:layout_marginTop="8dp"
                android:hint="Password"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/username_field" />

        </android.support.constraint.ConstraintLayout>
    </android.support.v7.widget.CardView>

    <Button
        android:id="@+id/login_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:text="Login!"
        app:layout_constraintBottom_toBottomOf="@+id/credentials_card"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/credentials_card" />

</android.support.constraint.ConstraintLayout>
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