我正在使用新的RecyclerView-Layout
在SwipeRefreshLayout
中,遇到了一个奇怪的行为。当将列表向上滚动回到顶部时,有时顶部视图会被切断。
如果现在尝试向上滚动 - 将触发下拉刷新。
如果尝试移除Recycler-View周围的Swipe-Refresh-Layout,则问题消失。这个问题可以在任何手机上重现(不仅限于L-Preview设备)。
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/contentView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="gone">
<android.support.v7.widget.RecyclerView
android:id="@+id/hot_fragment_recycler"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.SwipeRefreshLayout>
这是我的布局 - 行是通过RecyclerViewAdapter动态构建的(此列表中有2个Viewtypes)。
public class HotRecyclerAdapter extends TikDaggerRecyclerAdapter<GameRow> {
private static final int VIEWTYPE_GAME_TITLE = 0;
private static final int VIEWTYPE_GAME_TEAM = 1;
@Inject
Picasso picasso;
public HotRecyclerAdapter(Injector injector) {
super(injector);
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int position, int viewType) {
switch (viewType) {
case VIEWTYPE_GAME_TITLE: {
TitleGameRowViewHolder holder = (TitleGameRowViewHolder) viewHolder;
holder.bindGameRow(picasso, getItem(position));
break;
}
case VIEWTYPE_GAME_TEAM: {
TeamGameRowViewHolder holder = (TeamGameRowViewHolder) viewHolder;
holder.bindGameRow(picasso, getItem(position));
break;
}
}
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
switch (viewType) {
case VIEWTYPE_GAME_TITLE: {
View view = inflater.inflate(R.layout.game_row_title, viewGroup, false);
return new TitleGameRowViewHolder(view);
}
case VIEWTYPE_GAME_TEAM: {
View view = inflater.inflate(R.layout.game_row_team, viewGroup, false);
return new TeamGameRowViewHolder(view);
}
}
return null;
}
@Override
public int getItemViewType(int position) {
GameRow row = getItem(position);
if (row.isTeamGameRow()) {
return VIEWTYPE_GAME_TEAM;
}
return VIEWTYPE_GAME_TITLE;
}
这是适配器。
hotAdapter = new HotRecyclerAdapter(this);
recyclerView.setHasFixedSize(false);
recyclerView.setAdapter(hotAdapter);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
contentView.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
loadData();
}
});
TypedArray colorSheme = getResources().obtainTypedArray(R.array.main_refresh_sheme);
contentView.setColorSchemeResources(colorSheme.getResourceId(0, -1), colorSheme.getResourceId(1, -1), colorSheme.getResourceId(2, -1), colorSheme.getResourceId(3, -1));
包含Recycler
和SwipeRefreshLayout
的Fragment
的代码。
如果有其他人遇到过这种行为并解决了它或者至少找到了原因,请告诉我?