Question

嗨我在滚动NestedScrollView时遇到一种延迟，并且观察到滚动延迟，直到视图折叠一旦视图折叠滚动工作正常。

有没有解决方案。

以下是xml代码

<android.support.design.widget.CoordinatorLayout 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:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
    android:id="@+id/app_bar_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

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

        <com.antonioleiva.materializeyourapp.widgets.SquareImageView
            android:id="@+id/image"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fitsSystemWindows="true"
            android:scaleType="centerCrop"
            app:layout_collapseMode="parallax" />

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_collapseMode="pin"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

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

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

<android.support.v4.widget.NestedScrollView
    android:id="@+id/scroll"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipToPadding="false"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

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

        <android.support.v7.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="24dp"
            app:cardElevation="@dimen/spacing_medium"
            app:cardUseCompatPadding="true">

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

                <TextView
                    android:id="@+id/title"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="@dimen/spacing_large"
                    android:layout_marginRight="@dimen/spacing_large"
                    android:layout_marginTop="@dimen/spacing_large"
                    android:textAppearance="@style/TextAppearance.AppCompat.Headline" />

                <TextView
                    android:id="@+id/description"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="@dimen/spacing_large"
                    android:text="@string/lorem_ipsum"
                    android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

            </LinearLayout>

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

    </FrameLayout>

</android.support.v4.widget.NestedScrollView>

<android.support.design.widget.FloatingActionButton
    android:id="@+id/fab"
    style="@style/FabStyle"
    app:layout_anchor="@id/app_bar_layout"
    app:layout_anchorGravity="bottom|right|end" />

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

Answer 1

您似乎需要使用this库。我认为它会解决你的问题。

为了完整起见，我发布了从上面的库示例中获取的代码

<android.support.design.widget.CoordinatorLayout
  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.RecyclerView
    android:id="@android:id/list"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

  <me.henrytao.smoothappbarlayout.SmoothAppBarLayout
    android:id="@+id/smooth_app_bar_layout"
    android:layout_width="match_parent"
    android:layout_height="@dimen/app_bar_height">

    <android.support.design.widget.CollapsingToolbarLayout
      android:id="@+id/collapsing_toolbar_layout"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      app:layout_scrollFlags="scroll|exitUntilCollapsed">

      <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        app:layout_collapseMode="pin"
        app:navigationIcon="@drawable/ic_toolbar_arrow_back"
        style="@style/AppStyle.MdToolbar" />

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

  </me.henrytao.smoothappbarlayout.SmoothAppBarLayout>

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

NestedScrollView滚动滞后，直到CollapsingToolbarLayout视图不会崩溃

1 个答案: