Question

我将这个json中的数据压缩到这个，

现在我想要当用户点击应用程序的图像时打开另一个具有recyceler视图的激活并在＆＃34; im：image＆＃34;中显示图像。 json中的json数组！这段代码给了我所有的图像，但我不会只是我点击任何想法的图像？

这是我的模块

public class AppShowModule{

 private List<String> Allimage = new ArrayList<String>();
public List<String> getAllimage() {
    return Allimage;}
public void setAllimage(List<String> allimage) {
    Allimage = allimage;}

回收者视图适配器

public class ImageListAdapter extends RecyclerView.Adapter<ImageListAdapter.ViewHolder> {
List<AppShowModule> appShowModules;
List<AppShowModule> imageUrls ;

Context context;
public ImageListAdapter(List<AppShowModule> appShowModules, Context context){
    super();
    this.appShowModules = appShowModules;
    this.context = context;}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from( parent.getContext() ).inflate( R.layout.imagelayout, parent,false );
    ViewHolder viewHolder = new ViewHolder( v );
    return viewHolder;}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
    final AppShowModule appShowModule = appShowModules.get( position );
    Picasso.with(context).load(appShowModule.getAllimage().get(position)).into(holder.appImage);

}
@Override
public int getItemCount() {
    return appShowModules.size();
}
class ViewHolder extends RecyclerView.ViewHolder {
    public ImageView appImage;
    public ViewHolder(View itemView) {
        super(itemView);
        appImage = (ImageView) itemView.findViewById( R.id.appImage);
    }}}

这是片段

public class ImageListFragment extends Fragment {

List<AppShowModule> appShowModules;
Context context;
List<AppShowModule> imagesModule;
RecyclerView AppRecyclerView;
ImageView Imageview;
RecyclerView.Adapter imageRecyclerViewadapter;
List<String> imageUrls;
String feedKey = "feed";
String entryKey = "entry";
String nameKey = "im:name";
String imageKey = "im:image";
String labelKey = "label";
String artistKey = "im:artist";
String contentTypeKey = "im:contentType";
String attribueKey = "attributes";
String rightsKey = "rights";
String categoryKey = "category";
String relaseDateKey = "im:releaseDate";
String linkKey = "link";
String hrefKey = "href";
String summaryKey = "summary";
String jsonUrl = "https://itunes.apple.com/jo/rss/topfreeapplications/limit=50/json";
RequestQueue requestQueue;
private RecyclerView.LayoutManager mLayoutManager;
public ImageListFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
    return inflater.inflate(R.layout.fragment_image_list, container, false);
}
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    AppRecyclerView = (RecyclerView) getView().findViewById(R.id.imageRecyclerView);
    imagesModule = new ArrayList<>();
    appShowModules = new ArrayList<>();
    imageUrls = new ArrayList<>();
    JsonAppShowData();
}
public void JsonAppShowData() {
    final JsonObjectRequest jsonObjectRequest = new JsonObjectRequest( jsonUrl, new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject response) {
            try {

                JSONArray jsonArray = response.getJSONObject("feed").getJSONArray( "entry" );
                AppShowModule appShowModule = new AppShowModule();
                for (int i = 0; i < jsonArray.length(); i++) {

                    String image = response.getJSONObject(feedKey).getJSONArray(entryKey).getJSONObject(i).getJSONArray(imageKey).getJSONObject(0).getString(labelKey).toString();
                    imageUrls.add(image);
                    appShowModule.setAllimage(imageUrls);
                    appShowModules.add(appShowModule);
                }
                imageRecyclerViewadapter = new ImageListAdapter(appShowModules,getContext());
                AppRecyclerView.setAdapter(imageRecyclerViewadapter);
            } catch (JSONException e) {
                e.printStackTrace();
            }}

    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Log.e( "LOG", error.toString() );
        }
    } );
    requestQueue = Volley.newRequestQueue( getContext() );
    requestQueue.add(jsonObjectRequest);
    mLayoutManager = new GridLayoutManager( getContext().getApplicationContext(),3);
    AppRecyclerView.setLayoutManager(mLayoutManager);    }}

Answer 1

您可以通过以下方式从每个阵列中获取第一张图像

... getJSONArray（entryKey）.getJSONObject（ⅰ）.getJSONArray（imageKey）.getJSONObject（0）...

而您需要从数组中获取与所选图像相关的所有图像，因此在内部图像数组String mCurrentPhotoPath; private File createImageFile() throws IOException { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); String imageFileName = "JPEG_" + timeStamp + "_"; File externalStorageDirectory = Environment.getExternalStorageDirectory(); File directory = new File(externalStorageDirectory.getAbsolutePath() + "/yourappname"); //create directory if not exist if (!directory.isDirectory()) { directory.mkdirs(); } File image = File.createTempFile( imageFileName, /* prefix */ ".jpg", /* suffix */ storageDir /* directory */ ); // Save a file: path for use with ACTION_VIEW intents mCurrentPhotoPath = "file:" + image.getAbsolutePath(); return image; }上迭代您的数组，而不是在外部主数组im:image上。请按照以下步骤操作

每当您点击图片项目，然后获取该项目的ID。
迭代外部数组entry并检查所点击的项目ID是否与数组entry匹配。
当它匹配id然后迭代内部数组entry并将这些图像存储在列表中。并将该列表应用于im:immage。

希望这有帮助。

将JsonArray解析为Picasso库

1 个答案: