android - notifyItemRangeChanged() 导致 RecyclerView Android 崩溃

Question

布局设计:

HorizontalScrollView-parent, holding RV[
    RecyclerView=>(GridLayoutManager) (orientation verticle)]

这基本上会进行双向滚动。此 UI 专为电视打造。此网格中的焦点行将显示额外的详细信息，而其他行则不会。因此，每当 onFocusChange 中的焦点从一行更改为另一行时，我都会修改 Adapter 的 dataset 并调用 notifyItemRangeChanged() 。

当行的长度超过屏幕的垂直长度(即垂直可滚动)时，这会很好地工作。如果行数较少(例如 4)，就会发生崩溃。

错误:

    java.lang.IllegalArgumentException: parameter must be a descendant of this view
at android.view.ViewGroup.offsetRectBetweenParentAndChild(ViewGroup.java:5937)
at android.view.ViewGroup.offsetDescendantRectToMyCoords(ViewGroup.java:5866)
at android.widget.HorizontalScrollView.isWithinDeltaOfScreen(HorizontalScrollView.java:1168)
at android.widget.HorizontalScrollView.onSizeChanged(HorizontalScrollView.java:1569)
at android.view.View.sizeChange(View.java:19719)
at android.view.View.setFrame(View.java:19680)
at android.view.View.layout(View.java:19583)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1780)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1546)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1080)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1791)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1635)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1544)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:323)
at android.widget.FrameLayout.onLayout(FrameLayout.java:261)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:758)
at android.view.View.layout(View.java:19586)
at android.view.ViewGroup.layout(ViewGroup.java:6053)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2484)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2200)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1386)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6733)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:658)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)

我尝试调用 notifydatasetchange，但这将返回 getAdapterPosition = -1，这不会导致焦点从 1 行更改到另一行

由于适配器代码长度超过了 stackoverflow 设置的字符长度，我为此提供了驱动器链接。 Adapter and viewholder layout code

垂直滚动时不会崩溃

垂直滚动时崩溃

Answer 1

当 recyclerview 中的项目可聚焦时，我遇到了同样的问题。尝试以下操作:

选项 1 ScrollView 中的用户 windowSoftInputMode="adjustPan"

选项 2将您的自定义 ScrollListener 附加到您的 Activity，目的是当 RV 开始滚动时，清除当前焦点。

protected class FocusableScrollListner implements OnScrollListener {

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem,
                int visibleItemCount, int totalItemCount) {
            // do nothing 
        }

        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {
            if (SCROLL_STATE_TOUCH_SCROLL == scrollState) {
                View currentFocus = getCurrentFocus();
                if (currentFocus != null) {
                    currentFocus.clearFocus();
                }
            }
        }

    }

选项 3:

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View currentFocus = ((Activity)context).getCurrentFocus();
    if (currentFocus != null) {
        currentFocus.clearFocus();
    }
}

根据您的代码，可能还有一些其他选择，您必须清除焦点。