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私は2日前にこの問題を解決しようとしました..私はウェブサイトで提供されたソリューションのほとんどを見たが、誰も私の問題を解決しませんでした..E/RecyclerView：アダプターは接続されていません。レイアウトをスキップ...より多くのクラスで更新されました
アプリが停止しましたそして私はこのエラーを受け取ります：E/RecyclerView：アダプターが接続されていません。ここでは、レイアウト
をスキップすると、私のMainActivityです：
public class MainActivity extends AppCompatActivity {
RecyclerView listWebsite;
RecyclerView.LayoutManager layoutManager;
NewsService mService;
ListSourceAdapter adapter;
AlertDialog dialog;
SwipeRefreshLayout swipeLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
swipeLayout = (SwipeRefreshLayout)findViewById(R.id.swipeRefresh);
swipeLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
loadWebsiteSource(true);
}
});
Paper.init(this);
mService = Common.getNewsService();
listWebsite = (RecyclerView)findViewById(R.id.list_source);
listWebsite.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(this);
listWebsite.setLayoutManager(layoutManager);
dialog = new SpotsDialog(this);
loadWebsiteSource(true);
}
private void loadWebsiteSource(boolean isRefreshed) {
if(!isRefreshed)
{
String cache = Paper.book().read("cache");
if(cache != null && !cache.isEmpty())
{
// Convert cache from Json to Object
WebSite website = new Gson().fromJson(cache, WebSite.class);
adapter = new ListSourceAdapter(getBaseContext(), website);
adapter.notifyDataSetChanged();
listWebsite.setAdapter(adapter);
}
else
{
dialog.show();
mService.getSources().enqueue(new Callback<WebSite>() {
@Override
public void onResponse(Call<WebSite> call, Response<WebSite> response) {
adapter = new ListSourceAdapter(getBaseContext(), response.body());
adapter.notifyDataSetChanged();
listWebsite.setAdapter(adapter);
Paper.book().write("cache", new Gson().toJson(response.body()));
}
@Override
public void onFailure(Call<WebSite> call, Throwable t) {
}
});
}
}
else
{
dialog.show();
mService.getSources().enqueue(new Callback<WebSite>() {
@Override
public void onResponse(Call<WebSite> call, Response<WebSite> response) {
adapter = new ListSourceAdapter(getBaseContext(), response.body());
adapter.notifyDataSetChanged();
listWebsite.setAdapter(adapter);
Paper.book().write("cache", new Gson().toJson(response.body()));
swipeLayout.setRefreshing(false);
}
@Override
public void onFailure(Call<WebSite> call, Throwable t) {
}
});
}
}
}
、ここでは私のアダプターです：
class ListSourceViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
ItemClickListener itemClickListener;
TextView source_title;
CircleImageView source_image;
public ListSourceViewHolder(View itemView) {
super(itemView);
source_image = (CircleImageView)itemView.findViewById(R.id.source_image);
source_title = (TextView)itemView.findViewById(R.id.source_name);
}
public void setItemClickListener(ItemClickListener itemClickListener){
this.itemClickListener = itemClickListener;
}
@Override
public void onClick(View view) {
}
}
public class ListSourceAdapter extends RecyclerView.Adapter<ListSourceViewHolder>{
private Context context;
private WebSite webSite;
private IconBetterIdeaService mService;
public ListSourceAdapter(Context baseContext, WebSite website) {
this.context = baseContext;
this.webSite = website;
mService = Common.getIconService();
}
@Override
public ListSourceViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View itemView = inflater.inflate(R.layout.source_layout, parent, false);
return new ListSourceViewHolder(itemView);
}
@Override
public void onBindViewHolder(final ListSourceViewHolder holder, int position) {
StringBuilder iconBetterApi = new StringBuilder("https://icons.better-idea.org/allicons.json?url=");
iconBetterApi.append(webSite.getSources().get(position).getUrl());
mService.getIconUrl(iconBetterApi.toString())
.enqueue(new Callback<IconBetterIdea>() {
@Override
public void onResponse(Call<IconBetterIdea> call, Response<IconBetterIdea> response) {
if(response.body().getIcons().size() > 0)
{
Picasso.with(context)
.load(response.body().getIcons().get(0).getUrl())
.into(holder.source_image);
}
}
@Override
public void onFailure(Call<IconBetterIdea> call, Throwable t) {
}
});
holder.source_title.setText(webSite.getSources().get(position).getName());
holder.setItemClickListener(new ItemClickListener() {
@Override
public void onClick(View view, int position, boolean isLongClick) {
}
});
}
@Override
public int getItemCount() {
return webSite.getSources().size();
}
}
ここではウェブサイトのクラスです：
public class WebSite {
private String status;
private List<Source> sources;
public WebSite() {
}
public WebSite(String status, List<Source> sources) {
this.status = status;
this.sources = sources;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public List<Source> getSources() {
return sources;
}
public void setSources(List<Source> sources) {
this.sources = sources;
}
}
、ここでは、Sourceクラスです：
public class Source {
private String id;
private String name;
private String description;
private String url;
private String category;
private String language;
private String country;
private UrlsToLogos urlsToLogos;
private List<String> sortBysAvailable;
public Source() {
}
public Source(String id, String name, String description, String url, String category, String language, String country, UrlsToLogos urlsToLogos, List<String> sortBysAvailable) {
this.id = id;
this.name = name;
this.description = description;
this.url = url;
this.category = category;
this.language = language;
this.country = country;
this.urlsToLogos = urlsToLogos;
this.sortBysAvailable = sortBysAvailable;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getCategory() {
return category;
}
public void setCategory(String category) {
this.category = category;
}
public String getLanguage() {
return language;
}
public void setLanguage(String language) {
this.language = language;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public UrlsToLogos getUrlsToLogos() {
return urlsToLogos;
}
public void setUrlsToLogos(UrlsToLogos urlsToLogos) {
this.urlsToLogos = urlsToLogos;
}
public List<String> getSortBysAvailable() {
return sortBysAvailable;
}
public void setSortBysAvailable(List<String> sortBysAvailable) {
this.sortBysAvailable = sortBysAvailable;
}
}
私は...ニュースのソースを取得newsapi.org APIを使用していたエラーメッセージを読んで
AChez9 @ありがとう..しかし、uがupdateメソッドを実装する方法の詳細を説明できますか？ –
WebSiteオブジェクトとは何ですか？私はちょうどそれが新しいWebSiteオブジェクトをインスタンス化せず、代わりにそのデータを更新することを意味するように更新と呼ばれました。 – AChez9
私はより多くの2つのクラスで投稿を更新しました。ありがとうございます –