子片段将滚动父片段，如果子元素没有可滚动内容

Question

我有一个父片段，其中CoordinatorLayout作为根布局，我在父片段中显示了不同的子片段。子片段可能具有可滚动内容和不可滚动内容。在可滚动的子片段中，如果滚动到达页面底部，则子片段滚动事件将触发父片段滚动。如果子级没有可滚动的内容，则尝试滚动子级会导致父片段的滚动。子片段的宽度和高度均与父片段匹配，并且根片段布局具有android：clickable =“ true”属性。这是父片段的xml

<androidx.coordinatorlayout.widget.CoordinatorLayout 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">

<com.google.android.material.appbar.AppBarLayout
    android:id="@+id/appBarLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:elevation="0dp"
    android:background="@color/background_grey">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:layout_scrollFlags="scroll">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toTopOf="parent">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/llMenuOpened"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/toolbar_background"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <ImageView
                    android:id="@+id/igLogo"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:padding="15dp"
                    android:src="@drawable/header"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <.customViews.ApTextView
                    android:id="@+id/tvAddress"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="70dp"
                    android:layout_marginTop="15dp"
                    android:layout_marginEnd="15dp"
                    android:layout_marginBottom="15dp"
                    android:drawableEnd="@drawable/chevron_down"
                    android:drawablePadding="10dp"
                    android:ellipsize="end"
                    android:gravity="end"
                    android:maxLines="1"
                    android:textColor="@color/dark_gunmetal"
                    android:textSize="13sp"
                    app:fontFamily="@font/montserrat_medium"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintHorizontal_bias="1.0"
                    app:layout_constraintStart_toEndOf="@+id/igLogo"
                    app:layout_constraintTop_toTopOf="parent" />

            </androidx.constraintlayout.widget.ConstraintLayout>

            <customViews.PromoView
                android:id="@+id/rateOrderPromoView"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="4dp"
                app:layout_constraintTop_toBottomOf="@id/llMenuOpened"
                app:layout_constraintStart_toStartOf="@id/clSearch"
                app:layout_constraintEnd_toEndOf="@id/clSearch"/>

            <customViews.PromoView
                android:id="@+id/mvHomePromo"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="4dp"
                app:layout_constraintTop_toBottomOf="@id/rateOrderPromoView"
                app:layout_constraintStart_toStartOf="@id/rateOrderPromoView"
                app:layout_constraintEnd_toEndOf="@id/rateOrderPromoView"/>

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/clSearch"
                android:layout_width="match_parent"
                android:layout_height="48dp"
                android:layout_marginLeft="8dp"
                android:layout_marginRight="8dp"
                android:layout_marginTop="8dp"
                android:background="@drawable/background_white_border"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/mvHomePromo">

                <ImageView
                    android:id="@+id/ivSearchFirst"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentStart="true"
                    android:layout_marginStart="8dp"
                    android:padding="12dp"
                    android:src="@drawable/search_dark"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

                <EditText
                    android:id="@+id/etSearch"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:background="@color/white"
                    android:backgroundTint="@color/white"
                    android:focusable="false"
                    android:hint="@string/hint_search"
                    android:imeOptions="actionSearch"
                    android:inputType="text"
                    android:textColorHint="@color/submarine"
                    android:textSize="14sp"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toStartOf="@+id/ivMicrophone"
                    app:layout_constraintStart_toEndOf="@+id/ivSearchFirst"
                    app:layout_constraintTop_toTopOf="parent" />

                <ImageView
                    android:id="@+id/ivMicrophone"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:padding="8dp"
                    android:src="@drawable/ic_microphone"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toStartOf="@+id/ivBarcode"
                    app:layout_constraintTop_toTopOf="parent" />

                <ImageView
                    android:id="@+id/ivBarcode"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="8dp"
                    android:padding="8dp"
                    android:src="@drawable/barcode"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

            </androidx.constraintlayout.widget.ConstraintLayout>

            <customViews.WrapHeightViewPager
                android:id="@+id/vpBanner"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:layout_marginRight="9dp"
                android:layout_marginLeft="9dp"
                app:layout_constraintTop_toBottomOf="@id/clSearch" />

            <com.tbuonomo.viewpagerdotsindicator.WormDotsIndicator
                android:id="@+id/worm_dots_indicator"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                app:dotsColor="@color/amaranth"
                app:dotsCornerRadius="8dp"
                app:dotsSize="8dp"
                app:dotsSpacing="6dp"
                app:dotsStrokeColor="@color/white"
                android:layout_marginBottom="8dp"
                android:visibility="gone"
                app:dotsStrokeWidth="1.5dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintBottom_toBottomOf="@id/vpBanner" />

            <com.google.android.material.tabs.TabLayout
                android:id="@+id/rtlHome"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_marginStart="20dp"
                android:layout_marginEnd="20dp"
                android:background="@color/porcelain"
                app:layout_constraintBottom_toBottomOf="@id/worm_dots_indicator"
                app:layout_constraintTop_toBottomOf="@id/worm_dots_indicator"
                app:tabIndicatorColor="@color/strawberry"
                app:tabIndicatorHeight="5dp"
                app:tabSelectedTextColor="@color/gunmetal"
                app:tabTextColor="@color/nevada" />

        </androidx.constraintlayout.widget.ConstraintLayout>

    </androidx.constraintlayout.widget.ConstraintLayout>

    <LinearLayout
        android:id="@+id/homeSearchBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:background="@drawable/toolbar_background"
        android:visibility="gone"
        app:layout_collapseMode="pin">

        <LinearLayout
            android:id="@+id/searchBar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="15dp"
            android:background="@drawable/border_grey"
            android:orientation="horizontal"
            android:padding="8dp">

            <TextView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:layout_weight="1"
                android:fontFamily="@font/montserrat_medium"
                android:text="@string/hint_search_bar"
                android:textColor="@color/submarine"
                android:textSize="13sp" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:src="@drawable/search_dark" />

        </LinearLayout>
    </LinearLayout>

</com.google.android.material.appbar.AppBarLayout>

<androidx.viewpager.widget.ViewPager
    android:id="@+id/vpHome"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginRight="4.5dp"
    android:layout_marginLeft="4.5dp"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

<FrameLayout
    android:id="@+id/homeChildFragmentContainer"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

</androidx.coordinatorlayout.widget.CoordinatorLayout>

可滚动的子片段xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusable="true">

<com.google.android.material.appbar.AppBarLayout
    android:id="@+id/appBarLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/background_grey">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/toolbar_background"
        android:clickable="true"
        android:focusable="true"
        android:orientation="horizontal"
        app:layout_collapseMode="parallax">

        <ImageView
            android:id="@+id/ivSecondaryBack"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:padding="15dp"
            android:src="@drawable/back"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <.customViews.ApTextView
            android:id="@+id/tvLeftTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginBottom="16dp"
            android:textColor="@color/gunmetal"
            android:visibility="gone"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toEndOf="@+id/ivSecondaryBack"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="1.0" />

        <customViews.ApTextView
            android:id="@+id/tvCenterTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="16dp"
            android:textColor="@color/gunmetal"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/ivSearch"
            app:layout_constraintStart_toEndOf="@+id/ivSecondaryBack"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintVertical_bias="1.0" />

        <ImageView
            android:id="@+id/ivDropDownCategory"
            android:layout_width="wrap_content"
            android:layout_height="7dp"
            android:layout_centerVertical="true"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginBottom="16dp"
            android:layout_toEndOf="@id/tvCenterTitle"
            android:src="@drawable/chevron_down"
            android:tint="@color/gunmetal"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintStart_toEndOf="@+id/tvCenterTitle"
            app:layout_constraintTop_toTopOf="parent" />

        <ImageView
            android:id="@+id/ivSearch"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:layout_margin="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="8dp"
            android:padding="8dp"
            android:src="@drawable/search_dark"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>

</com.google.android.material.appbar.AppBarLayout>

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/background_grey"
    android:clickable="true"
    android:focusable="true"
    android:orientation="vertical"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <LinearLayout
        android:id="@+id/categorySelection"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:visibility="gone">

        <com.aigestudio.wheelpicker.WheelPicker
            android:id="@+id/categoryWheel"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="16dp"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            app:wheel_curved="true"
            app:wheel_data="@array/empty_array_for_wheel"
            app:wheel_indicator="true"
            app:wheel_indicator_color="@color/grass"
            app:wheel_indicator_size="1.5dp"
            app:wheel_item_text_color="@color/battleship_grey_two"
            app:wheel_item_text_size="18sp"
            app:wheel_selected_item_text_color="@color/dark_gunmetal"
            app:wheel_visible_item_count="5" />

        <customViews.ApButton
            android:id="@+id/btnSelectCategory"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_marginTop="8dp"
            android:layout_marginBottom="20dp"
            android:background="@drawable/btn_green_background"
            android:fontFamily="@font/montserrat_semibold"
            android:padding="16dp"
            android:text="@string/text_ok"
            android:textAllCaps="true"
            android:textColor="@color/white"
            android:textSize="12sp" />

    </LinearLayout>

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

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="?android:attr/actionBarSize"
            android:background="@color/gunmetal"
            android:padding="8dp">

            <com.google.android.material.tabs.TabLayout
                android:id="@+id/tlSubCategories"
                style="@style/Widget.Design.TabLayout"
                android:layout_width="match_parent"
                android:layout_height="?android:attr/actionBarSize"
                app:tabBackground="@drawable/search_category_selector"
                app:tabIndicatorColor="@color/transparent"
                app:tabMode="scrollable"
                app:tabRippleColor="@color/transparent"
                app:tabSelectedTextColor="@color/white"
                app:tabTextAppearance="@style/CategoryTabTextStyle"
                app:tabTextColor="@color/white" />

        </RelativeLayout>


        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:orientation="horizontal">

            <customViews.ApTextView
                android:id="@+id/tvItemsCount"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:fontFamily="@font/montserrat_medium"
                android:text="@string/placeholder_item_count_search_result"
                android:textColor="@color/gunmetal"
                android:textSize="11sp" />

            <customViews.ApTextView
                android:id="@+id/btnFilters"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawableEnd="@drawable/filter"
                android:drawablePadding="4dp"
                android:fontFamily="@font/montserrat_medium"
                android:text="@string/text_go_to_filters"
                android:textColor="@color/gunmetal"
                android:textSize="13sp" />

        </LinearLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:layout_marginTop="16dp"
            android:background="@color/submarine" />

    </LinearLayout>


    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/rvProducts"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:clipToPadding="false"
        android:paddingBottom="12dp" />
</LinearLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

和一个具有不可滚动的根布局的孩子

<RelativeLayout 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:background="@color/white"
android:clickable="true">

<LinearLayout
    android:id="@+id/rlEmptyCart"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:orientation="vertical"
    android:visibility="visible">

    <customViews.ApTextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="30dp"
        android:gravity="center"
        android:text="@string/text_no_product"
        android:textColor="@color/gunmetal"
        android:textSize="20sp"
        app:fontFamily="@font/montserrat_extrabold" />

    <customViews.ApTextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="10dp"
        android:gravity="center" />

    <TextView
        android:id="@+id/tvBack"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="@string/button_back_to_reyon" />
</LinearLayout>

</RelativeLayout>

我该怎么解决？

Answer 1

您需要滚动的所有内容，请转到Inside NestedScrollView + LinearLayout

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

        <TextView
            android:text="This is Cannot be Scrollable"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
        
    </LinearLayout>

    <androidx.core.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">
            
            <TextView
                android:text="This is Can be Scrollable"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"/>
            
        </LinearLayout>
    </androidx.core.widget.NestedScrollView>

    

</RelativeLayout>