android - 如何使 nestedscrollview 的 subview 之一变为粘性标题？

Question

下面是我的代码 fragment 。

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.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:id="@+id/coordinate"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/background_light"
    tools:context="com.ajinkyabadve.mywatchlist.movie_detail_new.MovieActivity">    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:visibility="gone" />

    <include
        android:id="@+id/retryLayoutNoInternet"
        layout="@layout/no_internet_retry_layout"
        android:visibility="gone" />
    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="400dp"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsingToolbarLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginEnd="64dp"
            app:expandedTitleMarginStart="48dp"
            app:layout_scrollFlags="scroll|enterAlwaysCollapsed">

            <ImageView
                android:id="@+id/poster"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:contentDescription="@string/poster_of_movie"
                android:fitsSystemWindows="true"
                android:scaleType="centerCrop"
                app:layout_collapseMode="parallax" />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>
<include
        android:id="@+id/content"
        layout="@layout/content_movie" />

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="112dp"
        android:background="@color/colorPrimary"
        android:elevation="4dp"
        app:layout_anchor="@id/appbar"
        app:layout_anchorGravity="bottom"
        app:layout_collapseMode="pin"
        app:theme="@style/ThemeOverlay.AppCompat.Light">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_marginBottom="8dp"
            android:minHeight="?android:attr/actionBarSize"
            android:orientation="vertical">

            <TextView
                android:id="@+id/movieTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Title"
                android:textAppearance="@style/TextAppearance.AppCompat.Widget.ActionBar.Title.Inverse" />

            <TextView
                android:id="@+id/movieOrignalTitle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="4dp"
                android:text="subtitle"
                android:textAppearance="@style/TextAppearance.AppCompat.Widget.ActionBar.Subtitle.Inverse" />
        </LinearLayout>
    </android.support.v7.widget.Toolbar>

下面是content_movie.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView 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:id="@+id/content_movie"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="com.ajinkyabadve.mywatchlist.movie_detail_new.MovieActivity"
    tools:showIn="@layout/activity_movie">

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

        <include layout="@layout/overview" />

        <include layout="@layout/cast" />

        <include layout="@layout/facts" />


<!-- Below tablayout I want to work as a sticky header -->
        <!--<android.support.design.widget.TabLayout-->
        <!--android:layout_width="match_parent"-->
        <!--android:layout_height="100dp"-->
        <!--android:background="@color/colorPrimary" />--> </LinearLayout>
</android.support.v4.widget.NestedScrollView>

评论的 tablayout 应该作为一个粘性标题(意味着它在滚动时到达顶部时不应该滚动)。如何使用坐标布局实现这种效果？或者以任何其他方式。我们可以使用自定义行为或其他东西？

Answer 1

您可以使用以下库来实现此效果。

https://github.com/emilsjolander/StickyScrollViewItems

这基本上是一个自定义 ScrollView ，在此 ScrollView 中，您可以通过添加标签使任何 subview 或布局具有粘性:

android:tag="sticky"

希望对您有所帮助!