private void initListView(View v) {
mListView = (RecyclerView) v.findViewById(R.id.list);
layoutManager = new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false);
mListView.setLayoutManager(layoutManager);
mListView.addItemDecoration(
new SimpleDividerItemDecoration(
getActivity(), LinearLayoutManager.VERTICAL, 8f, 0xffEDEDED));
adapter = new FeedAdapter(getActivity(), data, listener);
mListView.setAdapter(adapter);
mEmptyView = (EmptyView) v.findViewById(R.id.view_list_empty_layout);
mEmptyView.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {}
});
mRefresh = v.findViewById(R.id.refresh);
mRefresh.setOnClickListener(onClickListener);
refreshTextView = (TextView) v.findViewById(R.id.refresh_news_count);
refreshTextView.setOnClickListener(mRefreshNewsListener);
lineView = v.findViewById(R.id.line);
swipeRefreshLayout = (SwipeRefreshLayout) v.findViewById(R.id.swipe_refresh_layout);
swipeRefreshLayout.setOnRefreshListener(
new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
FeedFragment.this.onRefresh();
}
});
mListView.setOnScrollListener(
new RecyclerView.OnScrollListener() {
@Override
public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
super.onScrollStateChanged(recyclerView, newState);
// 加载更多
if (!isLoading
&& adapter.getItemCount() == (layoutManager.findLastVisibleItemPosition() + 1)
&& newState == RecyclerView.SCROLL_STATE_IDLE) {
isLoading = true;
adapter.setLoadMoreEnable(true);
adapter.setLoadMoreState(XListViewFooter.STATE_LOADING);
adapter.notifyDataSetChanged();
onLoadMore();
}
}
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
// 解决RecyclerView和SwipeRefreshLayout共用存在的bug
swipeRefreshLayout.setEnabled(
layoutManager.findFirstCompletelyVisibleItemPosition() == 0);
}
});
request(Urls.SERVER_PATH + "/user/feeds", 0);
}
/** @param type 0 refresh 1 more */
private void request(String url, final int type) {
if (type == 0) {
stopRefreshNews();
showRefreshNewsCount(null, false);
refreshing = true;
mHandler.removeCallbacks(stopRefreshRunnable);
}
if (adapter.getItemCount() == 0) {
mEmptyView.show(true);
mEmptyView.onLoading();
}
mEmptyView.setOnClickListener(null);
GsonRequest<FeedDatasGsonModel> req =
new GsonRequest<FeedDatasGsonModel>(
url,
FeedDatasGsonModel.class,
AppUtils.getOAuthMap(getActivity()),
new Response.Listener<FeedDatasGsonModel>() {
@Override
public void onResponse(FeedDatasGsonModel response) {
if (response != null) {
nextUrl = response.next;
if (response.data != null && !response.data.isEmpty()) {
if (type == 0) {
data.clear();
}
data.addAll(response.data);
}
}
if (!TextUtils.isEmpty(nextUrl)) {
adapter.setLoadMoreEnable(true);
adapter.setLoadMoreState(0);
} else {
adapter.setLoadMoreEnable(true);
adapter.setLoadMoreState(XListViewFooter.STATE_NOTDATA);
}
adapter.notifyDataSetChanged();
if (type == 0) {
offset = response != null ? response.offset : null;
if (!TextUtils.isEmpty(offset)) {
try {
offset = URLEncoder.encode(offset, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
startRefreshNews();
}
mRefresh.clearAnimation();
refreshing = false;
swipeRefreshLayout.setRefreshing(false);
} else isLoading = false;
if (adapter.getItemCount() <= 0) {
mEmptyView.show(true);
mEmptyView.onFailed(getString(R.string.no_data));
} else if (mEmptyView.isShowing()) mEmptyView.show(false);
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
if (mRefresh != null) mRefresh.clearAnimation();
if (type == 0) {
if (!TextUtils.isEmpty(offset)) {
startRefreshNews();
}
if (data.isEmpty()) {
mEmptyView.show(true);
ErrorEntity entity = AppUtils.getErrorEntity(error);
mEmptyView.onFailed(
entity != null && !TextUtils.isEmpty(entity.getMessage())
? entity.getMessage()
: getString(R.string.chat_load_failed));
mEmptyView.setOnClickListener(mRefreshNewsListener);
}
refreshing = false;
swipeRefreshLayout.setRefreshing(false);
} else {
adapter.setLoadMoreEnable(true);
adapter.setLoadMoreState(0);
adapter.notifyDataSetChanged();
isLoading = false;
}
}
});
req.setShouldCache(false);
addRequest(req);
}