在我的回收视图中，当我在列表中向上滚动时，swiperefreshlayout 被触发，这阻碍了我的列表向上移动。我浏览了 this 博客，但它解决了列表视图的这个问题。对于 recycleview 的这个问题是否有任何类似的解决方法，因为本博客中使用的 onscrollListener 已被弃用。
<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/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
tools:context="com.morpho.innovationlab.trustwall.Dashboard">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="250dp"
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:orientation="horizontal"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed">
<ImageView
android:id="@+id/backdrop"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="10dp"
android:importantForAccessibility="no"
android:src="@drawable/tw_logo"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="40dp"
android:layout_weight="1"
android:orientation="vertical">
<TextView
android:id="@android:id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Trustwall"
android:textColor="@android:color/white"
android:textSize="24sp"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Your Privacy is our priority"
android:textColor="@android:color/white"
android:textSize="12sp"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed" />
</LinearLayout>
</LinearLayout>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipeRefreshLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<TextView
android:id="@+id/emptyview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="50dp"
android:gravity="center_horizontal"
android:text="Click on the Add button to add websites to trustwall secure zone."
android:visibility="gone" />
<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</FrameLayout>
</android.support.v4.widget.SwipeRefreshLayout>
<android.support.design.widget.FloatingActionButton
android:id="@+id/add_website"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_marginBottom="20dp"
android:layout_marginRight="20dp"
android:src="@drawable/ic_add"
app:elevation="12dp"
app:pressedTranslationZ="12dp" />
/>
</android.support.design.widget.CoordinatorLayout>
我终于通过实现 recycleview 的 setOnScrollListenner 实现了正确的行为。
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
int topRowVerticalPosition =
(recyclerView == null || recyclerView.getChildCount() == 0) ? 0 : recyclerView.getChildAt(0).getTop();
swipeRefreshLayout.setEnabled(topRowVerticalPosition >= 0);
}
都是一样的idea
您可以自定义 RecycleView 并设置何时消耗触摸事件或绕过。
然后 SwipeRefreshLayout 可以接收触摸事件。
我无法实施@Manish Patiyal 已回答的 setOnScrollListenner，因此我尝试了另一种适合我的解决方案。
recycler_view.addOnScrollListener(new RecyclerView.OnScrollListener() { //Used to restrict collapsing of recycler view horizontal swipe and swipe refresh layout
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if (linearlayoutmanager.findFirstCompletelyVisibleItemPosition() == 0)
swipeRefreshLayout.setEnabled(true);
else
swipeRefreshLayout.setEnabled(false);
}
});
**This Swipe Refresh Layout Util function to use any place to call on application and perform your requirement in listener **
public static void setMoveUpOnRefreshListener( final SwipeRefreshLayout layout, final OnRefreshListener listener,RecyclerView recyclerView) {
if (layout != null) {
layout.setOnChildScrollUpCallback((parent, child) -> {
int topRowVerticalPosition =
(recyclerView == null || recyclerView.getChildCount() == 0) ? 0 : recyclerView.getChildAt(0).getTop();
layout.setEnabled(topRowVerticalPosition >= 0);
return false;
});
layout.setOnRefreshListener(() -> {
// Logger.log("mTopSwipeRefreshLayout onRefresh");
layout.setRefreshing(true);
if (listener != null) {
listener.onRefresh();
}
});
// sets the colors used in the refresh animation
layout.setColorSchemeResources(
R.color.primarydark,
R.color.primary);
}
}
public interface OnRefreshListener {
void onRefresh();
}