如何在android

时间：2016-07-24 16:19:39

标签： android

获取json数据并设置Model类此数据设置列表视图或recyclerview详细信息获取json数据并设置Model类此数据设置列表视图或recyclerview详细信息获取json数据并设置Model类此数据设置列表视图或recyclerview细节

private void getdata() {
        String url = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
        pDialog = new ProgressDialog(this);
        pDialog.setMessage("Loading...");
        pDialog.show();
        final StringRequest placeReq = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
            @Override
            public void onResponse(String Response) {
                Log.e("Place Response", Response.toString());
                pDialog.dismiss();
                try {
                    JSONObject json = new JSONObject(Response);
                    JSONArray jArray = json.getJSONArray("history");
                    Log.e("jArray", "" + jArray);
                    ArrayList<ModelClass> modelClassArrayList = new ArrayList<ModelClass>();
                    ModelClass modelClass = new ModelClass();
                    for (int i = 0; i < jArray.length(); i++) {
                        try {
                            JSONObject oneObject = jArray.getJSONObject(i);
                            String oneObjectsItem = oneObject.getString("type");
                            if (oneObjectsItem.equals("approval")) {
                                modelClass.setTransactionid(oneObject.getString("transactionid"));
                                modelClass.setName(oneObject.getString("name"));
                                modelClass.setAddress(oneObject.getString("address"));
                                modelClass.setType(oneObject.getString("type"));
                                modelClass.setTag(oneObject.getString("tag"));
                                modelClass.setStatus(oneObject.getString("status"));
                                modelClass.setDate(oneObject.getString("date"));
                                modelClass.setImage(oneObject.getString("image"));
                                modelClassArrayList.add(modelClass);
                                Log.e("name", "" + oneObject.getString("name"));
                                Log.e("address", "" + oneObject.getString("address"));
                                Log.e("type", "" + oneObject.getString("type"));
                                Log.e("status", "" + oneObject.getString("status"));
                                Log.e("date", "" + oneObject.getString("date"));
                            }
                        } catch (Exception e) {
                            Log.e("error", "" + e);
                        }
                    }
                    for (int j = 0; j < modelClassArrayList.size(); j++) {
                        Log.e("name", "" + modelClassArrayList.get(j).getDate());
                    }
                    Log.e("Size ", "" + modelClassArrayList.size());
                } catch (Exception e1) {
                    Log.e("Error", "" + e1);
                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e("Place", "Error Response: " + error.getMessage());
                pDialog.dismiss();
            }
        })
        {
            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = new HashMap<String, String>();
                params.put("userid", "1");
                Log.e("Restaurant", "Posting params: " + params.toString());
                return params;
            }
        };
        Volley.newRequestQueue(this).add(placeReq);
    }

私有类Connection扩展了AsyncTask     {         static final String URL =＆＃34; http://api.androidhive.info/pizza/?format=xml＆＃34 ;;         static final String KEY_ITEM =＆＃34; item＆＃34 ;; //父节点         static final String KEY_ID =＆＃34; id＆＃34 ;;         static final String KEY_NAME =＆＃34; name＆＃34 ;;         static final String KEY_COST =＆＃34; cost＆＃34 ;;         static final String KEY_DESC =＆＃34; description＆＃34 ;; 

    @Override
    protected Object doInBackground(Object... arg0) {
        XMLParser parser = new XMLParser();
        String xml = parser.getXmlFromUrl(URL); // getting XML
        Log.e("xml", "" + xml);
        Document doc = parser.getDomElement(xml); // getting DOM element
        Log.e("doc", "" + doc.toString());
        NodeList nl = doc.getElementsByTagName("item");
        Log.e("nl", "" + nl.toString());
        for (int i = 0; i < nl.getLength(); i++) {
            ModelClass modelClass = new ModelClass();
            Element e = (Element) nl.item(i);
            modelClass.setId(parser.getValue(e, KEY_ID));
            modelClass.setName(parser.getValue(e, KEY_NAME));
            modelClass.setCost("Rs." + parser.getValue(e, KEY_COST));
            modelClass.setDescription(parser.getValue(e, KEY_DESC));
            modelClass.setDate(parser.getValue(e, "date"));
            modelClassArrayList.add(modelClass);
            Log.e("Size", "" + modelClassArrayList.size() + "" + i);
        }
        for (int j = 0; j < modelClassArrayList.size(); j++) {
            Log.e("Id", modelClassArrayList.get(j).getId());
            Log.e("Name", modelClassArrayList.get(j).getName());
            Log.e("Cost", modelClassArrayList.get(j).getCost());
            Log.e("Desc", modelClassArrayList.get(j).getDescription());
            Log.e("date", modelClassArrayList.get(j).getDate());
        }
        return null;
    }
    @Override
    protected void onPostExecute(Object o) {
        super.onPostExecute(o);
    }
}

class XMLParser{ public XMLParser(){ } public String getXmlFromUrl(String url) { String xml = null; try { DefaultHttpClient httpClient = new DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); HttpResponse httpResponse = httpClient.execute(httpPost); HttpEntity httpEntity = httpResponse.getEntity(); xml = EntityUtils.toString(httpEntity); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return xml; } public Document getDomElement(String xml){ Document doc = null; DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); try { DocumentBuilder db = dbf.newDocumentBuilder(); InputSource is = new InputSource(); is.setCharacterStream(new StringReader(xml)); doc = db.parse(is); } catch (ParserConfigurationException e) { Log.e("Error: ", e.getMessage()); return null; } catch (SAXException e) { Log.e("Error: ", e.getMessage()); return null; } catch (IOException e) { Log.e("Error: ", e.getMessage()); return null; } return doc; } public final String getElementValue( Node elem ) { Node child; if( elem != null){ if (elem.hasChildNodes()){ for( child = elem.getFirstChild(); child != null; child = child.getNextSibling() ){ if( child.getNodeType() == Node.TEXT_NODE ){ return child.getNodeValue(); } } } } return ""; } public String getValue(Element item, String str) { NodeList n = item.getElementsByTagName(str); return this.getElementValue(n.item(0)); } } `public class FavouriteAnimalListAdapter扩展了RecyclerView.Adapter {

Context context;
ArrayList<FavouritreAnimal> favouriteAnimalArray;


FavouritreAnimal animalfavourite;

public FavouriteAnimalListAdapter(Context context, ArrayList<FavouritreAnimal> favouriteAnimalArray) {
    this.context = context;
    this.favouriteAnimalArray = favouriteAnimalArray;
}

@Override
public favouriteListViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(context).inflate(R.layout.item_card_vew_favourite_list_view, parent, false);
    favouriteListViewHolder favouriteListViewHolder = new favouriteListViewHolder(v);

    return favouriteListViewHolder;
}




@Override
public void onBindViewHolder(favouriteListViewHolder holder, final int position) {
    animalfavourite = favouriteAnimalArray.get(position);

    holder.tvFavouriteAnimalName.setText(animalfavourite.getAnimalname());

    Glide.with(context)
            .load(animalfavourite.getAnimalimage())
            .into(holder.ivFavouriteAnimalImage);


    String animaldesc = Html.fromHtml(context.getString(animalfavourite.getAnimal_description())).toString();
    if (animaldesc.length() > 100) {
        String animaldesc1 = Html.fromHtml(animaldesc).toString();
        animaldesc = animaldesc1.substring(0, 110) + "\n" + "...";
    }


    holder.tvFavouriteAnimalDescription.setText(animaldesc);
    holder.cvFavouriteanimal.setTag(R.string.app_name, animalfavourite.getAnimalid());
    holder.cvFavouriteanimal.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {


            CardView cv = (CardView) v;
            int id = (int) cv.getTag(R.string.app_name);
            Intent intent = new Intent(context, FavourityAnimalViewPager.class);
            intent.putExtra(Utils.ANIMAL_ID, position);
            context.startActivity(intent);

            ((Activity)context).finish();
        }
    });
}

@Override
public int getItemCount() {
    return favouriteAnimalArray.size();
}

static class favouriteListViewHolder extends RecyclerView.ViewHolder {
    CardView cvFavouriteanimal;
    TextView tvFavouriteAnimalName, tvFavouriteAnimalDescription;
    ImageView ivFavouriteAnimalImage;

    public favouriteListViewHolder(View itemView) {
        super(itemView);
        cvFavouriteanimal = (CardView) itemView.findViewById(R.id.cv_favourite_animal);
        tvFavouriteAnimalName = (TextView) itemView.findViewById(R.id.tv_favourite_animal_name);
        ivFavouriteAnimalImage = (ImageView) itemView.findViewById(R.id.ib_favourite_animal_image);
        tvFavouriteAnimalDescription = (TextView) itemView.findViewById(R.id.tv_favourite_animal_description);
    }
}

}`

3 个答案:

答案 0 :(得分：0)

类MainActivity扩展了AppCompatActivity {

ProgressDialog pDialog;
RecyclerView recyclerView;
EditText search;
ArrayList<ModelClass> modelClassArrayList;



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    recyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
    search = (EditText) findViewById(R.id.search);

    getDataToServer();
    addFnction();
}

void addFnction() {
    search.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            charSequence = charSequence.toString();

            ArrayList<ModelClass> filteredList = new ArrayList<ModelClass>();

            for (int j = 0; j < modelClassArrayList.size(); j++) {

                final String text = modelClassArrayList.get(j).getName().toLowerCase();
                if (text.contains(charSequence)) {

                    filteredList.add(modelClassArrayList.get(j));
                }
            }

            recyclerView.setHasFixedSize(true);
            LinearLayoutManager llm = new LinearLayoutManager(MainActivity.this);
            recyclerView.setLayoutManager(llm);
            AdapterClass adapterClass = new AdapterClass(MainActivity.this, filteredList);
            recyclerView.setAdapter(adapterClass);
            adapterClass.notifyDataSetChanged();


        }

        @Override
        public void afterTextChanged(Editable editable) {

        }
    });
}

private void getDataToServer() {
    String url = "http://theappguruz.in/php/DemoJSON/api/user/contacts#sthash.LouFoc7n.dpuf";
    pDialog = new ProgressDialog(this);
    pDialog.setMessage("Loading...");
    pDialog.show();
    final StringRequest placeReq = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
        @Override
        public void onResponse(String Response) {
            Log.e("Place Response", Response.toString());
            pDialog.dismiss();
            try {
                JSONObject json = new JSONObject(Response);
                JSONArray jArray = json.getJSONArray("Payload");

                String msg = json.getString("Message");

                Log.e("Masssssss", "" + msg);

                Log.e("jArray", "" + jArray);
                modelClassArrayList = new ArrayList<ModelClass>();

                for (int i = 0; i < jArray.length(); i++) {
                    ModelClass modelClass = new ModelClass();
                    JSONObject oneObject = jArray.getJSONObject(i);

                    modelClass.setName(oneObject.getString("FirstName"));
                    modelClass.setState(oneObject.getString("LastName"));
                    JSONObject twoObject = oneObject.getJSONObject("Phone");
                    modelClass.setDescription(twoObject.getString("Mobile"));
                    modelClassArrayList.add(modelClass);
                }

                recyclerView.setHasFixedSize(true);
                LinearLayoutManager llm = new LinearLayoutManager(MainActivity.this);
                recyclerView.setLayoutManager(llm);

                Collections.sort(modelClassArrayList, new Comparator<ModelClass>() {
                    public int compare(ModelClass p1, ModelClass p2) {
                        return (p1.getName()).compareTo(p2.getName());
                    }
                });

                AdapterClass adapterClass = new AdapterClass(MainActivity.this, modelClassArrayList);
                recyclerView.setAdapter(adapterClass);


            } catch (Exception e) {
                Log.e("Exxx", "" + e);
            }
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Log.e("Place", "Error Response: " + error.getMessage());
        }
    }) {
        @Override
        protected Map<String, String> getParams() {
            Map<String, String> params = new HashMap<String, String>();
            HashMap<String, String> headers = new HashMap<String, String>();
            // headers.put("Content-Type", "application/json; charset=utf-8");
            return params;
        }
    };
    Volley.newRequestQueue(this).add(placeReq);
}

}

答案 1 :(得分：0)

public class AdapterClass扩展了RecyclerView.Adapter {     上下文背景;     ArrayList modelClassArrayList;     ModelClass modelClass; 

public AdapterClass(Context context, ArrayList<ModelClass> modelClassArrayList) {
    this.context = context;
    this.modelClassArrayList = modelClassArrayList;
}

@Override
public ListViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(context).inflate(R.layout.item_card_vew_list_view, parent, false);
    ListViewHolder listViewHolder = new ListViewHolder(v);
    return listViewHolder;
}

@Override
public void onBindViewHolder(ListViewHolder holder, final int position) {
    modelClass = modelClassArrayList.get(position);
    holder.textViewcity.setText(modelClass.getName());
    holder.textViewstate.setText(modelClass.getState());
    holder.textViewdscri.setText(modelClass.getDescription());

    holder.cvView.setTag(position);


    holder.cvView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.e("Position", "" + position);
            Log.e("Name", "" + modelClassArrayList.get(position).getName());
            Log.e("State", "" + modelClassArrayList.get(position).getState());
            Log.e("Description", "" + modelClassArrayList.get(position).getDescription());

            Intent intent = new Intent(context, SecondAct.class);
            intent.putExtra("name", modelClassArrayList.get(position).getName());
            intent.putExtra("last", modelClassArrayList.get(position).getState());
            intent.putExtra("phone", modelClassArrayList.get(position).getDescription());
            context.startActivity(intent);

        }
    });

}


@Override
public int getItemCount() {
    return modelClassArrayList.size();
}

static class ListViewHolder extends RecyclerView.ViewHolder {
    CardView cvView;
    TextView textViewdscri, textViewstate, textViewcity;


    public ListViewHolder(View itemView) {
        super(itemView);
        cvView = (CardView) itemView.findViewById(R.id.card_view);
        textViewcity = (TextView) itemView.findViewById(R.id.city);
        textViewstate = (TextView) itemView.findViewById(R.id.state);
        textViewdscri = (TextView) itemView.findViewById(R.id.dscri);

    }
}

}

答案 2 :(得分：0)

public class static_data扩展了AppCompatActivity {

args.length

}

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