linxin6560 / detailscrollview Goto Github PK

list没有数据的时候，list所在的位置会留有一个屏幕大小的空白

从ListView往上滑动的时候到Webview的时候会卡主，WebView内容不满一屏幕会留下一大片空白

E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.NullPointerException
at android.widget.ScrollBarDrawable.setAlpha(ScrollBarDrawable.java:221)
at android.view.View.onDrawScrollBars(View.java:11542)
at android.view.View.draw(View.java:13950)
at android.view.View.getDisplayList(View.java:12838)
at android.view.View.getDisplayList(View.java:12880)
at android.view.View.draw(View.java:13657)
at android.view.ViewGroup.drawChild(ViewGroup.java:3086)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2923)
at android.view.View.getDisplayList(View.java:12833)
at android.view.View.getDisplayList(View.java:12880)

E/XgStat: java.lang.ClassCastException: android.widget.OverScroller cannot be cast to android.support.v4.widget.ScrollerCompat

是因为WebView没有自动适应网页的高度的原因吗

<DetailWebView
    android:id="@+id/article_web"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<DetailRecyclerView
    android:id="@+id/reply_recycler"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="@dimen/dp10"
    android:paddingLeft="@dimen/dp14"
    android:paddingRight="@dimen/dp14" />

Process: com.example.administrator.detailscrollview, PID: 22993 java.lang.ClassCastException: android.widget.OverScroller cannot be cast to android.support.v4.widget.ScrollerCompat at com.levylin.detailscrollview.views.DetailRecyclerView.getCurrVelocity(DetailRecyclerView.java:114) at com.levylin.detailscrollview.views.helper.ListViewTouchHelper.getCurVelocity(ListViewTouchHelper.java:140) at com.levylin.detailscrollview.views.helper.ListViewTouchHelper.onScrollStateChanged(ListViewTouchHelper.java:124) at com.levylin.detailscrollview.views.DetailRecyclerView$1.onScrollStateChanged(DetailRecyclerView.java:52) at android.support.v7.widget.RecyclerView.dispatchOnScrollStateChanged(RecyclerView.java:4759) at android.support.v7.widget.RecyclerView.setScrollState(RecyclerView.java:1434) at android.support.v7.widget.RecyclerView$ViewFlinger.run(RecyclerView.java:4908) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874) at android.view.Choreographer.doCallbacks(Choreographer.java:686) at android.view.Choreographer.doFrame(Choreographer.java:618) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6119) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

错误被定位到
DetailRecyclerView$getCurrVelocity
/** * 获取RecyclerView滑动速度 * * @return */ public int getCurrVelocity() { if (scrollerCompat != null) { return (int) scrollerCompat.getCurrVelocity(); } Class clazz = RecyclerView.class; try { Field viewFlingerField = clazz.getDeclaredField("mViewFlinger"); viewFlingerField.setAccessible(true); Object viewFlinger = viewFlingerField.get(this); Field scrollerField = viewFlinger.getClass().getDeclaredField("mScroller"); scrollerField.setAccessible(true); scrollerCompat = (ScrollerCompat) scrollerField.get(viewFlinger); return (int) scrollerCompat.getCurrVelocity(); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } return 0; }
似乎是反射出现了问题，我也在尝试解决它。

下滑的时候会webview的滑动惯性会传递到listview，但是listview上滑的关系没办法传递给webview，能不能支持

你好，代码写的很好，如果配合相关的博客一起看就太好了

mScrollView.scrollToListView();

mScrollView.toggleScrollToListView();

刚好项目有需求！ 感谢分享！