11

I am having Recyclerview inside Scrollview 

 <Scrollview
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true">

    <LinearLayout
        android:id="@+id/layoutStaticContent"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

       //Static content.
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="100dp">
           .
           .
        <LinearLayout>

         //Dynamic content(newsfeed)
         <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </LinearLayout>
 </ScrollView>

Now while scrolling, layoutStaticContent stays fix on the top & recyclerview content scrolls independently in the bottom part. How to scroll the whole content i.e (layoutStaticContent + recyclerview content) such that there is only 1 scrollview? I also tried replacing scrollview with Nestedscrollview but no success.

4

5 回答 5

13

使用android.support.v4.widget.NestedScrollViewthen 里面的两个布局 NestedScrollView

于 2016-01-06T12:01:31.200 回答
7

将包含静态和动态数据的 LinearLayout 放在 NestedScrollView 中，它会像魅力一样工作。

这是您需要的代码：

<android.support.v4.widget.NestedScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

<LinearLayout
    android:id="@+id/layoutStaticContent"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

   //Static content.
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="100dp">
       .
       .
    <LinearLayout>

     //Dynamic content(newsfeed)
     <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

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

我希望它有帮助！

于 2018-07-08T16:14:26.320 回答
3

解决此问题的一种可能方法是仅使用带有静态内容的 RecyclerView 作为 Recyclerview 的标题。

那么布局就是：

//Dynamic content(newsfeed)
     <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

您的静态内容将有一个 list_item_header.xml 布局：

//Static content.
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="100dp">
   .
   .
<LinearLayout>

而且您必须更改您的 recyclerview 适配器以包含：

private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;

@Override
public int getItemCount()
{
    int itemCount = super.getItemCount();
    if (mIsHeaderPresent)
    {
        itemCount += 1;
    }
    return itemCount;
}


@Override
public int getItemViewType(int position)
{
    if (mIsHeaderPresent && position == 0)
    {
        return TYPE_HEADER;
    }
    return TYPE_ITEM;
}

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
    if (viewType == TYPE_HEADER)
    {
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.list_item_header, parent, false);
        ViewHolderHeader viewHolder = new ViewHolderHeader(itemView);
        return viewHolder;
    } else if (viewType == TYPE_ITEM)
    {
        return getItemViewHolder(parent);
    }

    throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder passedViewHolder)
{
    if (mIsHeaderPresent && passedViewHolder instanceof ViewHolderHeader)
    {
        onBindHeaderViewHolder((ViewHolderHeader) passedViewHolder);
    } else
    {
        onBindItemViewHolder(passedViewHolder);
    }
}
于 2016-01-06T09:52:50.157 回答
2

经过大量搜索和尝试，我找到了解决方案：

1. 设置 ScrollView 内部 RecyclerView 的高度：

    <ScrollView
       android:id="@+id/scrollView"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:fillViewport="true">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
    ...
    <android.support.v7.widget.RecyclerView
            android:id="@+id/myPostsRecyclerView"
            android:layout_width="match_parent"
            **android:layout_height="550dp"**
            android:layout_below="@+id/textView7"
            android:background="@drawable/background"
            android:padding="5dp"
            **android:visibility="gone"**
            tools:listitem="@layout/item_send" />
    </RelativeLayout>
    </ScrollView>

2. 在适配器中，您设置数据列表的位置：

public void setData(List<Post> posts) {
    this.posts.clear();
    this.posts.addAll(posts);
    notifyDataSetChanged();
    if (posts.size() < 1)
        activity.recyclerView.setVisibility(View.GONE);
    else {
        activity.recyclerView.setVisibility(View.VISIBLE);
        ViewGroup.LayoutParams params=activity.recyclerView.getLayoutParams();
        params.height=ViewGroup.LayoutParams.WRAP_CONTENT;
        activity.recyclerView.setLayoutParams(params);
    }

 }
于 2016-05-02T09:57:09.843 回答
2

如果你想滚动所有数据，我认为你必须使用 CoordinatorLayout。在 CoordinatorLayout 中，您可以使用 appbar 布局和 CollapsingToolbarLayout 来放置静态内容。因为它在 android 中使用可滚动容器到另一个可滚动容器的错误方法。你可以像这样使用坐标布局。

<?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: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:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

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

    //Static content.
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="100dp">
       .
       .
    <LinearLayout>

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

  <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
  />
</android.support.design.widget.CoordinatorLayout>
于 2016-01-06T09:31:32.827 回答