Android 滚动回收查看项目时滚动标题
我有一个带有图像的标题和一个带有一些项目的RecyclerViewAndroid 滚动回收查看项目时滚动标题,android,android-layout,android-xml,Android,Android Layout,Android Xml,我有一个带有图像的标题和一个带有一些项目的RecyclerView <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical" andr
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:id="@+id/header"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="100dp"
android:background="#ffffff">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:padding="0dp"
android:id="@+id/imageView"
android:adjustViewBounds="true"
android:cropToPadding="false" />
</RelativeLayout>
<ProgressBar
android:id="@+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:scrollbars="vertical"
android:layout_alignParentLeft="true" />
</LinearLayout>
RelativeLayout固定在RecyclerView的顶部。
我想要的是在滚动RecyclerView时向上滚动此标题(RelativeLayout)
您知道如何使用RecyclerView滚动标题吗?将根布局设置为协调器布局,然后将RecyclerView设置为协调器布局的直接子级。将可滚动内容包装在AppBarLayout中,然后应用滚动行为。请尝试以下代码,这将对您有所帮助
<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.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
>
<RelativeLayout
android:id="@+id/header"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="100dp"
app:layout_scrollFlags="scroll"
android:background="#ffffff">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:padding="0dp"
android:id="@+id/imageView"
android:src="@mipmap/ic_launcher"
android:adjustViewBounds="true"
android:cropToPadding="false" />
</RelativeLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:scrollbars="vertical"
android:layout_alignParentLeft="true"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
/>
</android.support.design.widget.CoordinatorLayout>