如何通过 RecycleView 适配器显示字符串数组内容

Question

我有这个json api结构：

{
seasons: [
{
seasonstitle: "Season 1",
titles: "S1E1; S1E2; S1E3",
},
{
seasonstitle: "Season 2",
titles: "S2E1; S2E2; S2E3",
},
]
}

我正在尝试显示这两个键的值：seasonstitle 和标题，但正如您所看到的，标题键有多个值，所以我像这样解析 json：

解析类：

public final class JsonDetailSeries {
public static ArrayList<SeriesItem> getSimpleMovieStringsFromJson(Context context, String moviesJsonString)
throws JSONException {
final String SEASONS = "seasons";
final String SEASONTITLE = "seasonstitle";
final String TITLES = "titles";
ArrayList<SeriesItem> parsedMovieData = new ArrayList<>();
JSONObject moviesObject = new JSONObject(moviesJsonString);
JSONArray moviesArray = moviesObject.getJSONArray(SEASONS);
for (int i = 0; i < moviesArray.length(); i++) {
String seasontitle;
String titles;
moviesObject = moviesArray.getJSONObject(i);
seasontitle = moviesObject.getString(SEASONTITLE);
titles = moviesObject.getString(TITLES);
String[] titlesArrray = titles.split(Pattern.quote(";"));
for (int j=0; j<titlesArrray.length; j++) {
Log.i("titles ", "=" + titlesArrray[j]);
}
parsedMovieData.add(new SeriesItem(seasontitle, titlesArrray));
}
return parsedMovieData;
}
}

当我在日志猫中看到它时，它像这样正确拆分：

titles = S1E1
titles = S1E2
titles = S1E3

依此类推，在我的自定义数组列表类中，我为其返回数据：

public class SeriesItem implements Parcelable {
private String seasontitle;
private String[] titlesArrray;
public SeriesItem(String seasontitle, String[] titlesArrray) {
this.seasontitle = seasontitle;
this.titlesArrray = titlesArrray;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeString(seasontitle);
out.writeStringArray(titlesArrray);
}
private SeriesItem(Parcel in) {
this.seasontitle         = in.readString();
this.titlesArrray         = in.createStringArray();
}
public SeriesItem() {
}
@Override
public int describeContents() {
return 0;
}
public static final Creator<SeriesItem> CREATOR = new Creator<SeriesItem>() {
@Override
public SeriesItem createFromParcel(Parcel in) {
return new SeriesItem(in);
}
@Override
public SeriesItem[] newArray(int i) {
return new SeriesItem[i];
}
};
public String getSeasontitle() {
return seasontitle;
}
public String[] gettitlesArrray() {
return titlesArrray;
}
}

当我调试这个类时，标题的数据Arrray接收得很好，每个标题都从另一个标题中分离出来 所以我尝试以这种方式在回收视图中显示这些数据：

Season1
S1E1
S1E2
S1E3
Season2
S2E1
S2E2
S2E3

所以这是我的回收视图适配器：

public class SeriesAdapter extends RecyclerView.Adapter<SeriesAdapter.RecyclerViewHolder> {
ArrayList<SeriesItem> mMoviesItems;
private Context context;
private final SeriesAdapterOnClickHandler mClickHandler;
public interface SeriesAdapterOnClickHandler {
void onClick(SeriesItem movie);
}
public SeriesAdapter(SeriesAdapterOnClickHandler clickHandler) {
mClickHandler = clickHandler;
}
class RecyclerViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public final TextView seasontitle;
public final ListView titlesArray;
public RecyclerViewHolder(View view) {
super(view);
seasontitle = (TextView)itemView.findViewById(R.id.seasontitle);
titlesArray = (ListView) itemView.findViewById(R.id.titlesArray);
view.setOnClickListener(this);
}
@Override
public void onClick(View v) {
int adapterPosition = getAdapterPosition();
SeriesItem movie = mMoviesItems.get(adapterPosition);
mClickHandler.onClick(movie);
}
}
@Override
public RecyclerViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
context = viewGroup.getContext();
int layoutIdForListItem = R.layout.series_list_item;
LayoutInflater inflater = LayoutInflater.from(context);
boolean shouldAttachToParentImmediately = false;
View view = inflater.inflate(layoutIdForListItem, viewGroup, shouldAttachToParentImmediately);
return new RecyclerViewHolder(view);
}
@Override
public void onBindViewHolder(RecyclerViewHolder holder, int position) {
holder.seasontitle.setText(String.valueOf(mMoviesItems.get(position).getSeasontitle()));
holder.titlesArray.setText(String.valueOf(mMoviesItems.get(position).gettitlesArrray()));
}
@Override
public int getItemCount() {
if (null == mMoviesItems)
return 0;
else {
return mMoviesItems.size();
}
}
public void setMovieData(ArrayList<SeriesItem> movieData) {
mMoviesItems = movieData;
notifyDataSetChanged();
}
}

我试图包含一个列表视图来显示此回收视图中的标题数组，问题出在以下行上：

holder.titlesArray.setText(String.valueOf(mMoviesItems.get(position(.gettitlesArrray((((;

我不能将 setText 用于列表视图，那么如何在此回收视图中显示标题数组内容？

Answer 1

我试图包含一个列表视图来显示此回收视图中的标题数组

不要那样做。

您要做的是处理两种不同的类型，季节和剧集。这个问题将帮助您解决这个问题。

如何创建具有多种视图类型的回收器视图？

Answer 2

使用 Gson 而不是本机解析 Json，实现起来要容易得多。