ScrollView在布局活动的底部留下了额外的空间 - android - ScrollView leaves extra space at bottom of layout activity

我的Scrollview在某些layouts下留下了空间？

<?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:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#efefef">
    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        style="@style/CustomToolbar"
        android:layout_width="match_parent"
        android:layout_height="?actionBarSize"
        android:layout_alignParentTop="true">
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <com.joanzapata.iconify.widget.IconButton
                android:id="@+id/back_iconbutton"
                style="@style/ToolbarButton"
                android:layout_alignParentRight="true"
                android:text="@string/icon_material_arrow_forward"
                android:textSize="24sp" />
            <TextView
                android:id="@+id/toolbar_title_textview"
                fontPath="@string/bold_font_path"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:layout_toLeftOf="@id/back_iconbutton"
                android:textAppearance="?android:textAppearanceMedium"
                android:textColor="@color/colorTextLight" />
        </RelativeLayout>
    </android.support.v7.widget.Toolbar>
    <com.github.rahatarmanahmed.cpv.CircularProgressView
        android:id="@+id/order_loading_progress_circularprogressview"
        android:layout_width="@dimen/circular_progress_width"
        android:layout_height="@dimen/circular_progress_width"
        android:layout_centerInParent="true"
        app:cpv_animAutostart="true"
        app:cpv_color="@color/colorPrimaryDark"
        app:cpv_indeterminate="true" />
    <ScrollView
        android:id="@+id/order_activity_content_scrollview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar"
        android:fillViewport="true">
        <android.support.constraint.ConstraintLayout
            android:id="@+id/order_activity_content_constraintlayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <RelativeLayout
                android:id="@+id/status_send_relative"
                android:layout_width="0dp"
                android:layout_height="50dp"
                android:layout_marginEnd="16dp"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginStart="16dp"
                app:layout_constraintBottom_toTopOf="@+id/ordered_products_list_recyclerview"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toTopOf="parent">
                <Switch
                    android:id="@+id/status_send_switch"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_marginLeft="10dp"
                    android:gravity="center_vertical" />
                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_marginLeft="5dp"
                    android:layout_toRightOf="@+id/status_send_switch"
                    android:gravity="center_vertical"
                    android:text="@string/not_send" />
            </RelativeLayout>
            <android.support.v7.widget.RecyclerView
                android:id="@+id/ordered_products_list_recyclerview"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginEnd="16dp"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginStart="16dp"
                android:layout_marginTop="8dp"
                app:layout_constraintBottom_toTopOf="@+id/personal_profile_cardview"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/status_send_relative" />
            <android.support.v7.widget.CardView
                android:id="@+id/personal_profile_cardview"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginTop="8dp"
                app:layout_constraintBottom_toTopOf="@+id/sum_bills_cardview"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/ordered_products_list_recyclerview">
                <android.support.constraint.ConstraintLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:layout_marginBottom="16dp"
                    android:layout_marginTop="16dp">
                    <com.joanzapata.iconify.widget.IconButton
                        android:id="@+id/person_iconbutton"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@null"
                        android:text="@string/md_person"
                        app:layout_constraintHorizontal_weight="1"
                        app:layout_constraintLeft_toRightOf="@+id/name_textview"
                        app:layout_constraintRight_toRightOf="parent"
                        app:layout_constraintTop_toTopOf="parent" />
                    <TextView
                        android:id="@+id/name_textview"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:gravity="right"
                        android:text="حسن الماسی"
                        app:layout_constraintBaseline_toBaselineOf="@+id/person_iconbutton"
                        app:layout_constraintHorizontal_weight="5"
                        app:layout_constraintLeft_toLeftOf="parent"
                        app:layout_constraintRight_toLeftOf="@+id/person_iconbutton"
                        app:layout_constraintTop_toTopOf="parent" />

                    <com.joanzapata.iconify.widget.IconButton
                        android:id="@+id/date_iconbutton"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@null"
                        android:text="@string/icon_fa_date"
                        app:layout_constraintHorizontal_weight="1"
                        app:layout_constraintLeft_toRightOf="@+id/date_textview"
                        app:layout_constraintRight_toRightOf="parent"
                        app:layout_constraintTop_toBottomOf="@+id/person_iconbutton" />
                    <TextView
                        android:id="@+id/date_textview"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:gravity="right"
                        android:text="1254862268522655"
                        app:layout_constraintBaseline_toBaselineOf="@+id/date_iconbutton"
                        app:layout_constraintHorizontal_weight="5"
                        app:layout_constraintLeft_toLeftOf="parent"
                        app:layout_constraintRight_toLeftOf="@+id/date_iconbutton"
                        app:layout_constraintRight_toRightOf="@+id/name_textview"
                        app:layout_constraintTop_toBottomOf="@+id/name_textview" />
                    <com.joanzapata.iconify.widget.IconButton
                        android:id="@+id/location_iconbutton"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@null"
                        android:text="@string/icon_material_location_on"
                        app:layout_constraintHorizontal_weight="1"
                        app:layout_constraintLeft_toRightOf="@+id/location_textview"
                        app:layout_constraintRight_toRightOf="parent"
                        app:layout_constraintTop_toBottomOf="@+id/date_iconbutton" />
                    <TextView
                        android:id="@+id/location_textview"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:gravity="right"
                        android:text="111 پردیسان پردیسان پردیسان پردیسان پردیسان پردیسان پردیسان پردیسان پردیسان پردیسانپردیسان پردیسان پردیسان پردیسان پردیسان پردیسان پردیسان 222"
                        app:layout_constraintBaseline_toBaselineOf="@+id/location_iconbutton"
                        app:layout_constraintBottom_toBottomOf="parent"
                        app:layout_constraintHorizontal_weight="5"
                        app:layout_constraintLeft_toLeftOf="parent"
                        app:layout_constraintRight_toRightOf="@+id/date_textview"
                        app:layout_constraintTop_toBottomOf="@+id/date_textview" />
                </android.support.constraint.ConstraintLayout>
            </android.support.v7.widget.CardView>
            <android.support.v7.widget.CardView
                android:id="@+id/sum_bills_cardview"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginTop="8dp"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/personal_profile_cardview">
                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:layout_marginBottom="16dp"
                    android:layout_marginLeft="16dp"
                    android:layout_marginRight="16dp"
                    android:layout_marginTop="16dp"
                    android:weightSum="2">
                    <TextView
                        android:id="@+id/title_sum_bills_textview"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:text="50000000" />
                    <TextView
                        android:id="@+id/value_sum_bills_textview"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:layout_weight="1"
                        android:text="@string/sum_bills" />
                </LinearLayout>
            </android.support.v7.widget.CardView>
        </android.support.constraint.ConstraintLayout>
    </ScrollView>
</RelativeLayout>

ConstraintLayout RelativeLayout android:layout_marginEnd="16dp"
RelativeLayout关闭后RecyclerView android:layout_marginEnd="16dp"
CardView内部ConstraintLayout android:layout_marginBottom="16dp"
LinearLayout 在上CardView里面已经android:layout_marginBottom="16dp"

尝试更改或删除它们，看看它是否有效。在我看来，删除这 4 个参数应该有效。

您在 ConstraintLayout 下方的 RelativeLayout 中使用 Margin。

android:layout_marginEnd="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginStart="16dp"

尝试从中删除上述行

 <RelativeLayout
            android:id="@+id/status_send_relative"
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_marginEnd="16dp"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp"
            android:layout_marginStart="16dp"
            app:layout_constraintBottom_toTopOf="@+id/ordered_products_list_recyclerview"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent">

ScrollView在布局活动的底部留下了额外的空间 - android

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