JSONParsing & ListView 257

 Build Gradle

implementation libs.volley
implementation libs.picasso

Main Activity XML 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:background="#FFFFFF"
    >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:background="#FFFFFF"
        android:layout_margin="10dp"
        >

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView"
            android:visibility="gone"
            />


        <ProgressBar
            android:id="@+id/progressBar"
            style="?android:attr/progressBarStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <ListView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >

        </ListView>


    </LinearLayout>


</LinearLayout>

Main Activity JAVA

package com.rakibshah.server;

import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import com.squareup.picasso.Picasso;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;

public class MainActivity extends AppCompatActivity {

    TextView textView;
    ProgressBar progressBar;
    ListView listView;

    ArrayList <HashMap<String, String>> arrayList = new ArrayList<>();
    HashMap <String, String> hashMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        progressBar = findViewById(R.id.progressBar);
        listView = findViewById(R.id.listView);
        textView = findViewById(R.id.textView);

        String url = "https://asoshikhi.com/Drive/job.json";

        JsonArrayRequest arrayRequest = new JsonArrayRequest(Request.Method.GET, url, null, new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {
                progressBar.setVisibility(View.GONE);

                try {

                    for(int x=0; x<response.length(); x++){

                        JSONObject jsonObject = response.getJSONObject(x);
                        String title = jsonObject.getString("title");
                        String video_id = jsonObject.getString("video_id");


                        hashMap = new HashMap<>();
                        hashMap.put("title" , title);
                        hashMap.put("video_id" , video_id);
                        arrayList.add(hashMap);

                    }


                    MyAdapter myAdapter = new MyAdapter();
                    listView.setAdapter(myAdapter);



                } catch (JSONException e) {
                    throw new RuntimeException(e);
                }

            }
        }, new Response.ErrorListener() {
            @Override

            public void onErrorResponse(VolleyError error) {
                progressBar.setVisibility(View.GONE);
                textView.setText(""+error.getMessage());
                textView.setVisibility(View.VISIBLE);

            }
        });

        RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
        requestQueue.add(arrayRequest);

    }

    private class MyAdapter extends BaseAdapter{

        @Override
        public int getCount() {
            return arrayList.size();
        }

        @Override
        public Object getItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {

            LayoutInflater layoutInflater = getLayoutInflater();
            View myView = layoutInflater.inflate(R.layout.item, null);

            TextView tvTitle = myView.findViewById(R.id.tvTitle);
            ImageView imageThumb = myView.findViewById(R.id.imageThumb);

            HashMap<String, String> hashMap = arrayList.get(position);
            String title = hashMap.get("title");
            String video_id = hashMap.get("video_id");


            String image_url = "https://img.youtube.com/vi/"+video_id+"/0.jpg";

            tvTitle.setText(title);
            imageThumb.setImageResource(R.drawable.img);
            Picasso.get().load(image_url).placeholder(R.drawable.img).into(imageThumb);


            return myView;
        }
    }


}


Item.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"
    android:layout_margin="10dp"
    >


    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Title Here"
        android:textSize="25sp"
        android:textStyle="bold"
        />

    <ImageView
        android:id="@+id/imageThumb"
        android:layout_width="match_parent"
        android:layout_height="250dp"
        android:src="@drawable/img"
        android:scaleType="centerCrop"
        />
</LinearLayout>

1st & 2nd Fragmeant

 Main Activity XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:layout_margin="10dp"
    >

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="First Fragment"
        android:textSize="20sp"
        android:textStyle="bold"
        />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Second Fragment"
        android:textSize="20sp"
        android:textStyle="bold"
        />

    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Third Fragment"
        android:textSize="20sp"
        android:textStyle="bold"
        />


    <FrameLayout
        android:id="@+id/frameLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />


</LinearLayout>

 Main Activity JAVA

package com.rakibshah.fragment;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import com.FirstFragment;
import com.SecondFragment;

public class MainActivity extends AppCompatActivity {

    Button button1, button2, button3;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        button1 = findViewById(R.id.button1);
        button2 = findViewById(R.id.button2);
        button3 = findViewById(R.id.button3);

        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                FragmentManager fManager = getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fManager.beginTransaction();
                fragmentTransaction.add(R.id.frameLayout , new FirstFragment());
                fragmentTransaction.commit();

            }
        });

        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                FragmentManager fragmentManager = getSupportFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.add(R.id.frameLayout, new SecondFragment());
                fragmentTransaction.commit();

            }
        });

    }
}

Create Fragment File

Com > NEW > Fragment > Fragment(Blank)

First Fragment XML

<LinearLayout 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="com.FirstFragment"
    android:background="#88B6BC"
    android:orientation="vertical"
    android:padding="15dp"
    >


    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="1st Fragment"
        android:textSize="40sp"
        android:textStyle="bold"
        android:textColor="#FFFFFF"
        />

</LinearLayout>

First Fragment JAVA

package com;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.rakibshah.fragment.R;

public class FirstFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View myView = inflater.inflate(R.layout.fragment_first, container, false);

        return myView;
    }
}

 Second Fragment XML

<LinearLayout 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"
    android:orientation="vertical"
    android:background="#DD4D4D"
    tools:context="com.SecondFragment">



    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="2nd Fragmeant"
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#FFFFFF"
        android:layout_gravity="center"
        />

    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Button" />

</LinearLayout>

Second Fragment JAVA

package com;

import android.os.Bundle;

import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.Toast;

import com.rakibshah.fragment.R;


public class SecondFragment extends Fragment {

    Button button;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View myView = inflater.inflate(R.layout.fragment_second, container, false);

        button = myView.findViewById(R.id.button);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                Toast.makeText(getContext(), "Hello", Toast.LENGTH_LONG).show();

            }
        });

        return myView;

        }

   }

Fragment 1st

 Fragment 1st

XML

Create a Fragment Activity

Com > New > Fragment > Fragment (Blank)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity"
    >

    <FrameLayout
        android:id="@+id/frameLayout"
        android:layout_width="match_parent"
        android:layout_height="500dp"
        android:background="#2196F3"
        >

    </FrameLayout>


</LinearLayout>

JAVA

package com.rakibshah.fragment;

import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;

import com.FirstFragment;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        FragmentManager fManager = getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fManager.beginTransaction();
        fragmentTransaction.add(R.id.frameLayout , new FirstFragment());
        fragmentTransaction.commit();

    }
}

Fragment

<LinearLayout 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="com.FirstFragment"
    android:background="#88B6BC"
    android:orientation="vertical"
    android:padding="15dp"
    >


    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="1st Fragment"
        android:textSize="40sp"
        android:textStyle="bold"
        android:textColor="#FFFFFF"
        />

</LinearLayout>



Fragment JAVA

package com;

import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.rakibshah.fragment.R;

public class FirstFragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View myView = inflater.inflate(R.layout.fragment_first, container, false);

        return myView;
    }
}

JSON Array Request 255

 JSON Server Code

[

{

"title" :"Rakib Shah",

"video_id" : "xhUPXIFiAKk"

},

{

"title" :"Abid Shah",

"video_id" : "rrj9yiHrKc4"

},

{

"title" :"Prova Akter",

"video_id" : "e47QmqVMhGc"

},

{

"title" :"Abid Shah",

"video_id" : "rrj9yiHrKc4"

},

{

"title" :"Prova Akter",

"video_id" : "e47QmqVMhGc"

}

]

Build Gradle

implementation 'com.android.volley:volley:1.2.1'

Manifest Internet Permission

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>

XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical"
    android:layout_margin="20dp"
    >


    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=""
        android:textSize="10sp"
        />

</LinearLayout>

JAVA

package com.rakibshah.drivinglicense;

import android.os.Bundle;
import android.widget.TextView;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

    TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);

        textView = findViewById(R.id.textView);

        String url = "https://asoshikhi.com/Drive/job.json";

        JsonArrayRequest arrayRequest = new JsonArrayRequest(Request.Method.GET, url, null, new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {

                try {


                    for(int x=0; x<response.length(); x++){

                        JSONObject jsonObject = response.getJSONObject(x);
                        String title = jsonObject.getString("title");
                        String video_id = jsonObject.getString("video_id");
                        textView.append(x+"."+title+"\n"+video_id+"\n\n");

                    }

                } catch (JSONException e) {
                    throw new RuntimeException(e);
                }

            }
        }, new Response.ErrorListener() {
            @Override

            public void onErrorResponse(VolleyError error) {

                textView.setText(""+error.getMessage());

            }
        });

        RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
        requestQueue.add(arrayRequest);

    }
}

JSON Parsing in Android 253

 XML

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:background="#FFFFFF"
    >
  
  <LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:layout_margin="10dp"
    >

    <Button
        android:id="@+id/button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Click"
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#E91E63"
        android:backgroundTint="#3F51B5"
        android:layout_marginTop="50dp"

        />



    <TextView
        android:id="@+id/tName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Name"
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/button"
        android:layout_marginTop="10dp"
        />

    <TextView
        android:id="@+id/Tl1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=""
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/tName"
        android:layout_marginTop="10dp"
        android:background="#FFC107"
        />

    <TextView
        android:id="@+id/tMobile"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Mobile"
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/Tl1"
        android:layout_marginTop="10dp"
        />

    <TextView
        android:id="@+id/Tl2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=""
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/tMobile"
        android:layout_marginTop="10dp"
        android:background="#FFC107"
        />

    <TextView
        android:id="@+id/tEmail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Mobile"
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/Tl2"
        android:layout_marginTop="10dp"
        />

    <TextView
        android:id="@+id/Tl3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=""
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/tEmail"
        android:layout_marginTop="10dp"
        android:background="#FFC107"
        />


    <TextView
        android:id="@+id/tAddress"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Mobile"
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/Tl3"
        android:layout_marginTop="10dp"
        />

    <TextView
        android:id="@+id/Tl4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=""
        android:textSize="20sp"
        android:textStyle="bold"
        android:textColor="#000000"
        android:layout_below="@+id/tAddress"
        android:layout_marginTop="10dp"
        android:background="#FFC107"
        />

  </LinearLayout>


</RelativeLayout>

JAVA

package com.rakibshah.server;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

public class MainActivity extends AppCompatActivity {

    Button button;
    TextView tName,Tl1,tMobile,Tl2,tEmail,Tl3,tAddress,Tl4;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        button = findViewById(R.id.button);
        tName = findViewById(R.id.tName);
        Tl1 = findViewById(R.id.Tl1);
        tMobile = findViewById(R.id.tMobile);
        Tl2 = findViewById(R.id.Tl2);
        tEmail = findViewById(R.id.tEmail);
        Tl3 = findViewById(R.id.Tl3);
        tAddress = findViewById(R.id.tAddress);
        Tl4 = findViewById(R.id.Tl4);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                // Instantiate the RequestQueue.
                RequestQueue queue = Volley.newRequestQueue(MainActivity.this);
                String url = "https://asoshikhi.com/Drive/job.json";

// Request a string response from the provided URL.
                StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
                        new Response.Listener<String>() {
                            @Override
                            public void onResponse(String response) {
                                // Display the first 500 characters of the response string.
                                button.setText("Response is: " + response.substring(0,500));
                                Log.d("serverRes",response);
                            }
                        }, new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        button.setText("That didn't work!");
                    }
                });

// Add the request to the RequestQueue.
                queue.add(stringRequest);

            }
        });



    }
}

MANIFEST

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

BUILS GRADLE
implementation libs.volley