android - 在 CollapsingToolbarLayout 中显示任何组件

Question

我想做以下设计

不被折叠：

折叠：

为此，我做了以下布局：

<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"
    android:background="@color/white"
    android:clipChildren="false">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/tracklist"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_anchor="@id/profileAppBar"
        app:layout_anchorGravity="bottom"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
        tools:listitem="@layout/tracklist_item"/>

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/profileAppBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/tracklist_header_background">

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginBottom="-10dp"
            android:fitsSystemWindows="true"
            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:id="@+id/profileMainSection"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent">

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/ui_margin_small"
                    android:layout_marginEnd="@dimen/ui_margin_small"
                    android:gravity="center_vertical"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="parent">

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:fontFamily="@font/quicksand"
                        android:gravity="center_vertical"
                        android:text="@string/drawer_menu_item_music"
                        android:textColor="@color/white"
                        android:textSize="@dimen/text_size_default_text"
                        android:textStyle="bold" />

                    <ImageView
                        android:id="@+id/editButton"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:background="?attr/selectableItemBackgroundBorderless"
                        android:padding="@dimen/ui_margin_xsmall"
                        app:srcCompat="@drawable/ic_headphones_white" />
                </LinearLayout>

                <androidx.cardview.widget.CardView
                    android:id="@+id/profileImageCard"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/ui_margin_xl_plus"
                    android:layout_marginTop="@dimen/ui_margin_xxl_plus"
                    android:elevation="0dp"
                    app:cardCornerRadius="25dp"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent">

                    <ImageView
                        android:id="@+id/profileImage"
                        android:layout_width="115dp"
                        android:layout_height="115dp"
                        android:contentDescription="@null"
                        app:srcCompat="@drawable/imago_placeholder_small" />
                </androidx.cardview.widget.CardView>

                <ImageView
                    android:id="@+id/favoriteButton"
                    android:layout_width="24dp"
                    android:layout_height="24dp"
                    android:layout_marginStart="@dimen/ui_margin_large_plus"
                    android:layout_marginTop="2dp"
                    app:layout_constraintStart_toEndOf="@id/profileImageCard"
                    app:layout_constraintTop_toTopOf="@id/profileImageCard"
                    app:srcCompat="@drawable/full_heart_green" />

                <ImageView
                    android:id="@+id/sendButton"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/ui_margin_normal"
                    app:layout_constraintStart_toEndOf="@id/favoriteButton"
                    app:layout_constraintTop_toTopOf="@id/profileImageCard"
                    app:srcCompat="@drawable/ic_send" />

                <TextView
                    android:id="@+id/profileName"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/ui_margin_large_plus"
                    android:layout_marginTop="10dp"
                    android:layout_marginEnd="@dimen/ui_margin_normal"
                    android:fontFamily="@font/nunito"
                    android:textColor="@color/white"
                    android:textSize="@dimen/tracklist_header_title"
                    android:textStyle="bold"
                    android:text="Baba bubu"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintStart_toEndOf="@id/profileImageCard"
                    app:layout_constraintTop_toBottomOf="@id/favoriteButton"
                    tools:text="Rosalie Khumalo" />

                <TextView
                    android:id="@+id/profilePhoneNumber"
                    style="@style/AyobaTypography.Body2"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/ui_margin_large_plus"
                    android:layout_marginEnd="@dimen/ui_margin_normal"
                    android:textColor="@color/white"
                    android:text="32 songs · 1hr 40m"
                    app:layout_constraintStart_toEndOf="@id/profileImageCard"
                    app:layout_constraintTop_toBottomOf="@id/profileName"
                    tools:text="32 songs · 1hr 40m" />

                <TextView
                    android:id="@+id/updateInfo"
                    style="@style/AyobaTypography.Body2"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="@dimen/tracklist_header_update_info_margin"
                    android:layout_marginEnd="@dimen/ui_margin_normal"
                    android:fontFamily="@font/nunito"
                    android:paddingTop="10dp"
                    android:paddingBottom="@dimen/tracklist_header_update_info_margin"
                    android:textColor="@color/white"
                    android:textStyle="italic"
                    android:text="Updated last week"
                    app:layout_constraintStart_toStartOf="@id/profileImageCard"
                    app:layout_constraintTop_toBottomOf="@id/profileImageCard"
                    tools:text="Updated last week" />

                <ImageView
                    android:id="@+id/playButton"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginEnd="@dimen/ui_margin_large_plus"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintTop_toTopOf="@+id/updateInfo"
                    app:srcCompat="@drawable/ic_music_button" />

                <ImageView
                    android:id="@+id/shuffleButton"
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:layout_marginEnd="@dimen/ui_margin_large"
                    app:layout_constraintBottom_toBottomOf="@+id/playButton"
                    app:layout_constraintEnd_toStartOf="@id/playButton"
                    app:layout_constraintTop_toTopOf="@id/playButton"
                    app:srcCompat="@drawable/ic_button_shuffle_off" />

            </androidx.constraintlayout.widget.ConstraintLayout>

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/profileToolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:layout_marginEnd="@dimen/ui_margin_xxl_md"
                app:collapseIcon="@drawable/ic_white_arrow"
                app:layout_collapseMode="pin"
                app:navigationIcon="@drawable/ic_white_arrow" />

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

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

</androidx.coordinatorlayout.widget.CoordinatorLayout>

但是我无法在折叠时使 playButton 和 profileName 组件可见。我试图找到一个很好的例子，但我发现的唯一例子只是显示工具栏和 CollapsingToolbarLayout 组件中设置的标题。

标签： androidandroid-collapsingtoolbarlayout