Android Simple Json Listview ~ Android Basic

MainActivity.Java

package com.example.jjson;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {
ListView lv;
final static String INTENT_CATEGORY = "category";
final static String INTENT_CATEG = "category";

public static final String url = "http://products.p41techdev.net/p41insangh/category.php";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv= (ListView)findViewById(R.id.listView1);
        parser s = new parser();
        s.execute(url);


    }
public class parser extends AsyncTask<String,String,String>
{
    String page;
    private final ProgressDialog progressDialog = new ProgressDialog(MainActivity.this);

    @Override
    protected void onPreExecute()
    {
        progressDialog.setCancelable(true);

        progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        progressDialog.setIndeterminate(true);
        progressDialog.setMessage("Loading...");

        progressDialog.show();
    }
    @Override
    protected String doInBackground(String... params) {
        // TODO Auto-generated method stub
        String uu = params[0];
        InputStream is;



        HttpClient ht = new DefaultHttpClient();
        HttpPost hp = new HttpPost(uu);
        try {
            HttpResponse res = ht.execute(hp);
            HttpEntity en = res.getEntity();
            is= en.getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(is));
            StringBuilder sb = new StringBuilder("");
            String line ="";
            while((line = reader.readLine())!=null)
            {
                sb.append(line +"/n");
            }
            is.close();

            page=sb.toString();

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


        return page;
    }

    @Override
    protected void onPostExecute(String result) {

        String val=null;
        super.onPostExecute(result);
        ArrayList<String> obj = new ArrayList<String>();
        try {
            JSONArray jso = new JSONArray(result);
            for(int i =0;i < jso.length();i++)
            {
                JSONObject js = jso.getJSONObject(i);

                String OrginalValue=js.getString("category");
                obj.add(OrginalValue);

            }

        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        final ArrayAdapter<String> oo=new ArrayAdapter<String>(MainActivity.this,android.R.layout.activity_list_item,android.R.id.text1,obj);

            lv.setAdapter(oo);
            lv.setOnItemClickListener(new OnItemClickListener()
            {

                @Override
                public void onItemClick(AdapterView<?> arg0, View v, int position, long id) {

                Intent i = new Intent(MainActivity.this, Thirdactivity.class);
                String seltext=oo.getItem(position);
                i.putExtra(INTENT_CATEGORY, seltext);

                    Toast.makeText(getApplicationContext(), seltext, Toast.LENGTH_LONG).show();
                    startActivity(i);

                }
            });
    }
}
}
SubCategory .Java

package com.example.jjson;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class SubCategory extends Activity
{
    ListView lv ;
    String str1;
    final static String INTENT_CATEGORY = "category";
    final static String INTENT_CATE = "category";
    public static final String url = "http://products.p41techdev.net/p41insangh/category.php";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.submain);
        lv=(ListView)findViewById(R.id.listView1);


        parser s = new parser();
            s.execute(url);

    }
public class parser extends AsyncTask<String,String,String>
{
    String page;

    @Override
    protected String doInBackground(String... params) {
        String uu = params[0];
        InputStream is;
        HttpClient ht = new DefaultHttpClient();
        HttpPost hp = new HttpPost(uu);
        try {
            HttpResponse res = ht.execute(hp);
            HttpEntity en = res.getEntity();
            is= en.getContent();
            BufferedReader reader = new BufferedReader(new InputStreamReader(is));
            StringBuilder sb = new StringBuilder("");
            String line ="";
            while((line = reader.readLine())!=null)
            {
                sb.append(line +"/n");


            }
            is.close();

            page=sb.toString();

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return page;

    }

    @Override
    protected void onPostExecute(String result) {
        // TODO Auto-generated method stub
        super.onPostExecute(result);
        ArrayList<String> con = new ArrayList<String>();
        try {
            JSONArray jso = new JSONArray(result);
            for(int i =0;i < jso.length();i++)
            {
                JSONObject js = jso.getJSONObject(i);

                String OrginalValue=js.getString("category");
                String[] SplitValues=OrginalValue.split("~");
                Intent myLocalIntent = getIntent();
                   Bundle myBundle = myLocalIntent.getExtras();
                   str1 = myBundle.getString(MainActivity.INTENT_CATEGORY);
                // Log.d("str1",str1);

                   if(str1.equals(SplitValues[0]))
                    {
                            con.add(SplitValues[1]);
                    }
            }

        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        final ArrayAdapter<String> oo=new ArrayAdapter<String>(SubCategory.this,android.R.layout.activity_list_item,android.R.id.text1,con);
        lv.setAdapter(oo);
        lv.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View v, int position,
                    long arg3) {

                Intent i = new Intent(SubCategory.this,Thirdactivity.class);
                String stext = oo.getItem(position);
                i.putExtra("sub",stext);
                i.putExtra("category", str1);
                startActivity(i);
            }
        });
    }
}
}

Thirdactivity .Java

package com.example.jjson;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListView;

public class Thirdactivity extends Activity{
ListView lv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.third);
        lv = (ListView)findViewById(R.id.listView1);

        Intent myLocalIntent = getIntent();

        String str1 = (String) myLocalIntent.getExtras().get("category");

        str1=str1.replace(" ","%20");


           String url = "http://products.p41techdev.net/p41insangh/products.php?category="+str1;
        Log.d("Final url",url);
           parser pp = new parser();
           pp.execute(url);

    }
    public class parser extends AsyncTask<String,String,String>
    {
        String page;

        @Override
        protected String doInBackground(String... params) {
            String uu = params[0];
            InputStream is;
            HttpClient ht = new DefaultHttpClient();
            HttpPost hp = new HttpPost(uu);
            try {
                HttpResponse res = ht.execute(hp);
                HttpEntity en = res.getEntity();
                is= en.getContent();
                BufferedReader reader = new BufferedReader(new InputStreamReader(is));
                StringBuilder sb = new StringBuilder("");
                String line ="";
                while((line = reader.readLine())!=null)
                {
                    sb.append(line +"/n");
                }
                is.close();

                page=sb.toString();
            } catch (ClientProtocolException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return page;
        }
        @Override
        protected void onPostExecute(String result) {
            // TODO Auto-generated method stub
            super.onPostExecute(result);
            ArrayList<ItemDTO> obj = new ArrayList<ItemDTO>();
            try {
                JSONArray jars = new JSONArray(result);
                for(int i=0;i<jars.length();i++)
                {

                JSONObject jso = jars.getJSONObject(i);
                ItemDTO nn = new ItemDTO();
                nn.setId(jso.getString("id"));
                nn.setTitle(jso.getString("title"));
                //nn.setImgurl(jso.getInt("imgurl"));
                nn.setPrice(jso.getString("price"));
                obj.add(nn);
                Log.d("Array[]", obj.toString());

                }
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            ListBaseAdapter adapter = new ListBaseAdapter(obj,getLayoutInflater());

            lv.setAdapter(adapter);

        }
    }

}

ListBaseAdapter .Java
package com.example.jjson;

import java.util.ArrayList;

import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class ListBaseAdapter extends BaseAdapter{
    private ArrayList<ItemDTO> list;
    private LayoutInflater inf;
    private Bitmap[]mis_fotos;

    public ListBaseAdapter(ArrayList<ItemDTO> obj, LayoutInflater inff) {
        // TODO Auto-generated constructor stub
    this.list=obj;
    this.inf=inff;

    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return list.get(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return position;
    }

    @Override
    public View getView(int position, View v, ViewGroup parent) {
        Holder ho;
        if(v==null)
        {
            ho = new Holder();
            v= inf.inflate(R.layout.thirdsub,null);
            ho.tvid = (TextView)v.findViewById(R.id.textView1);
            ho.tvtitle = (TextView)v.findViewById(R.id.textView2);
            ho.tvprice = (TextView)v.findViewById(R.id.textView3);
            ho.imgg=(ImageView)v.findViewById(R.id.imageView1);
            v.setTag(ho);

        }
        else
        {
            ho =(Holder)v.getTag();

        }
        ho.tvid.setText(list.get(position).getId());
        ho.tvtitle.setText(list.get(position).getTitle());
        ho.tvprice.setText(list.get(position).getPrice());
        ho.imgg.setImageResource(list.get(position).getImgurl());
        return v;
    }
    public class Holder
    {
        TextView tvid,tvtitle,tvprice;
        ImageView imgg;
    }

}

ItemDTO.Java

package com.example.jjson;

public class ItemDTO
{
    String id,title,price;
    int imgurl;

    public int getImgurl() {
        return imgurl;
    }

    public void setImgurl(int imgurl) {
        this.imgurl = imgurl;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }

}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <RelativeLayout
        android:id="@+id/RelativeLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
    </RelativeLayout>

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" >

    </ListView>

</RelativeLayout>

Adapterlayout:thirdsub.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >


    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" />

</LinearLayout>

Android Basic

25/07/2013

Android Simple Json Listview

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