[英]RecyclerView and ViewPager with collapsing toolbar
I am trying to create this kind of a layout where - 我正在尝试创建这种布局,其中-
CollapsingToolbarLayout
that has a ViewPager
like google play app. ViewPager
CollapsingToolbarLayout
。 RecyclerView
. RecyclerView
。 ViewPager
. ViewPager
。 The RecylerView
scrolls normally until the end when CollapsingToolbarLayout
expands. RecylerView
正常滚动,直到CollapsingToolbarLayout
展开时为止。
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout
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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical"
app:layout_collapseMode="parallax">
<TextView
android:id="@+id/text_home_active"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/margin_normal"
android:background="@color/header_bg"
android:gravity="center_vertical"
android:textColor="@android:color/black"
android:textSize="@dimen/title_date_text_size" />
<android.support.v4.view.ViewPager
android:id="@+id/viewpager_home"
android:layout_width="fill_parent"
android:layout_height="170dp"
android:layout_gravity="center"
android:overScrollMode="ifContentScrolls" />
</LinearLayout>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/color_primary"
android:minHeight="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:theme="@style/ToolBarStyle" />
</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"
android:fillViewport="true"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="3">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:orientation="vertical">
<TextView
android:id="@+id/text_home_popular"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/header_bg"
android:gravity="center_vertical"
android:padding="@dimen/margin_normal"
android:textColor="@android:color/black"
android:textSize="@dimen/title_date_text_size" />
<android.support.v7.widget.RecyclerView
android:id="@+id/grid_home_popular"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
android:scrollbars="none"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="bottom"
android:layout_weight="1"
android:elevation="5dp"
android:orientation="vertical">
<TextView
android:id="@+id/text_home_offers"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/margin_normal"
android:gravity="center_vertical"
android:text="@string/text_home_offers"
android:textColor="@android:color/black"
android:textSize="@dimen/title_date_text_size" />
<android.support.v4.view.ViewPager
android:id="@+id/viewpager_home_offers"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:overScrollMode="ifContentScrolls" />
</LinearLayout>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerViewNavigation"
android:layout_width="300dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:background="#ffffff"
android:scrollbars="none" />
</android.support.v4.widget.DrawerLayout>
My problem is toolbar collapse only when I move outside the RecyclerView. 我的问题是仅当我移到RecyclerView之外时,工具栏才会折叠。
This solution solved my problems. 此解决方案解决了我的问题。
So Simply when the Appbar is fully expanded do not allow the recycler view to scroll instead we will use the scroll from the NestedScrollView, otherwise the Recycler View will scroll normaly. 因此,简单地讲,当Appbar完全展开时,不允许滚动回收器视图,而是使用NestedScrollView中的滚动,否则回收器视图将正常滚动。
appBarLayout.addOnOffsetChangedListener(new AppBarStateChangeListener() {
@Override
public void onStateChanged(AppBarLayout appBarLayout, State state) {
if (state == State.COLLAPSED)
mRecyclerView.setNestedScrollingEnabled(true);
if (state == State.EXPANDED)
mRecyclerView.setNestedScrollingEnabled(false);
}
});
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