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  • Json textview to Json viewlist

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    Answer it
    public class ExistingCSheet extends AppCompatActivity {
     
        private TextView listing;
        String[] items;
        ListView lv;
     
     
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_existing_csheet);
            Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
            setSupportActionBar(toolbar);
     
            //new JSONTask().execute("https://jsonparsingdemo-cec5b.firebaseapp.com/jsonData/moviesDemoList.txt");
            new JSONTask().execute("http://192.168.1.102/PSF/api/product\n");
     
           // listing = (TextView) findViewById(R.id.ecsList);
     
            lv = (ListView) findViewById(R.id.esList);
     
     
            lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                    Intent intent = new Intent(ExistingCSheet.this, NewCSheet.class);
                    intent.putExtra("in",lv.getItemAtPosition(i).toString());
                    startActivity(intent);
                }
            });
     
     
        }
     
     
       
        public class JSONTask extends AsyncTask<String, String, String> {
            @Override
            protected String doInBackground(String... params) {
                HttpURLConnection connection = null;
                BufferedReader reader = null;
     
                try {
                    URL url = new URL(params[0]);
                    connection = (HttpURLConnection) url.openConnection();
                    connection.connect();
     
                    InputStream stream = connection.getInputStream();
     
                    reader = new BufferedReader(new InputStreamReader(stream));
     
                    StringBuffer buffer = new StringBuffer();
     
                    String line = "";
                    while ((line = reader.readLine()) != null) {
                        buffer.append(line);
                    }
     
                    String finalJson = buffer.toString();
     
                    //   JSONObject parentObject = new JSONObject(finalJson);
                    //   JSONArray parentArray = parentObject.getJSONArray("");
                    JSONArray parentArray = new JSONArray(finalJson);
     
                    StringBuffer finalBufferedData = new StringBuffer();
                    for (int i = 0; i < parentArray.length(); i++) {
                        JSONObject finalObject = parentArray.getJSONObject(i);
                        String t1 = finalObject.getString("ib_itemcode1");
                        String t2 = finalObject.getString("transtatuscode");
                        String t3 = finalObject.getString("invtid");
                        String t4 = finalObject.getString("descr");
     
                        // int year = finalObject.getInt("transtatuscode");
     
     
                        finalBufferedData.append(t1 + " - " + t2 + " - " + t3 + " - " + t4 + "\n");
                    }
                    //JSONObject finalObject = parentArray.getJSONObject(0);
                    return finalBufferedData.toString();
     
                    //return buffer.toString();
     
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (JSONException e) {
                    e.printStackTrace();
                } finally {
                    if (connection != null) {
                        connection.disconnect();
                    }
                    try {
                        if (reader != null) {
                            reader.close();
                        }
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                return null;
            }
     
            @Override
            protected void onPostExecute(String result) {
                super.onPostExecute(result);
     
                listing.setText(result);
                //not done yet
            }
     
     
     
        }
    }

    Hi everyone, now what i am trying to do is to display the json in android, however i only manage to dump all of them into a  textview. 

    I need to place them in viewlist, in such a way that every row consist of example "ib_itemcode1":2131 "transtatuscode":123 "invtid":1231 "descr":123123.

    I am still reading up on arrayAdapter however i think the bigger problem is how do i assign the json data into the array adapter.

     

    Anyhow will be very thankful.

    Thank you again for helping out!

 3 Answer(s)

  • First: create a model class like this:-
    public class MyJSONBean {
     
       /** Property ib_itemcode1 */
       String ib_itemcode1;
     
       /** Property transtatuscode */
       String transtatuscode;
     
       /** Property invtid */
       String invtid;
     
       /** Property descr */
       String descr;
     
       /**
        * Gets the ib_itemcode1
        */
       public String getIb_itemcode1() {
          return this.ib_itemcode1;
       }
     
       /**
        * Sets the ib_itemcode1
        */
       public void setIb_itemcode1(String value) {
          this.ib_itemcode1 = value;
       }
     
       /**
        * Gets the transtatuscode
        */
       public String getTranstatuscode() {
          return this.transtatuscode;
       }
     
       /**
        * Sets the transtatuscode
        */
       public void setTranstatuscode(String value) {
          this.transtatuscode = value;
       }
     
       /**
        * Gets the invtid
        */
       public String getInvtid() {
          return this.invtid;
       }
     
       /**
        * Sets the invtid
        */
       public void setInvtid(String value) {
          this.invtid = value;
       }
     
       /**
        * Gets the descr
        */
       public String getDescr() {
          return this.descr;
       }
     
       /**
        * Sets the descr
        */
       public void setDescr(String value) {
          this.descr = value;
       }
    }

    Second: declare a List:-
    List<MyJSONBean> myList = new ArrayList<>();

    Third: inside doInBackground method, put values from the JSON inside the list
    Modify the for loop like this:-
     
    for (int i = 0; i < parentArray.length(); i++) {
        MyJSONBean myBean = new MyJSONBean();
    
        JSONObject finalObject = parentArray.getJSONObject(i);
        myBean.setIb_itemcode1(finalObject.getString("ib_itemcode1"));
        myBean.setTranstatuscode(finalObject.getString("transtatuscode"));
        myBean.setInvtid(finalObject.getString("invtid"));
        myBean.setDescr(finalObject.getString("descr"));
    
        myList.add(myBean);                    
                       
                    }

    Fourth: inside onPostExecute method, using myList call the adapter class and set the adapter either in ListView or RecyclerView.
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