colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#024265</color>
    <color name="colorPrimaryDark">#024265</color>
    <color name="colorAccent">#05af9b</color>

    <color name="color_one">#fb7268</color>
    <color name="color_white">#ededf2</color>
    <color name="color_two">#E3E0E0</color>

    <color name="cases">#FFA726</color>
    <color name="recovered">#66BB6A</color>
    <color name="deaths">#EF5350</color>
    <color name="active">#29B6F6</color>
</resources>

<?xml version="1.0" encoding="utf-8"?>

<color name="color_white">#ededf2</color>

</resources>

build.gradle

// Volley library
implementation 'com.android.volley:volley:1.1.1'

1 2	// Volley library implementation 'com.android.volley:volley:1.1.1'

And also we need to add the internet permission to get data from the api

<!--Allow Internet Permission-->
<uses-permission android:name="android.permission.INTERNET" />

1 2	<!--Allow Internet Permission--> <uses-permission android:name="android.permission.INTERNET" />

XML Code

activity_main.xml

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

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="17dp"
        android:text="GEEKSFORGEEKS"
        android:textColor="@color/recovered"
        android:textSize="24sp" />

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="550dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentBottom="true"
        android:layout_marginStart="10dp"
        android:layout_marginTop="60dp"
        android:layout_marginEnd="10dp"
        android:layout_marginBottom="10dp" />
    
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent">

<TextView

android:id="@+id/textView"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentTop="true"

android:layout_centerHorizontal="true"

android:layout_marginTop="17dp"

android:text="GEEKSFORGEEKS"

android:textColor="@color/recovered"

android:textSize="24sp" />

<ListView

android:id="@+id/listView"

android:layout_width="match_parent"

android:layout_height="550dp"

android:layout_alignParentTop="true"

android:layout_alignParentBottom="true"

android:layout_marginStart="10dp"

android:layout_marginTop="60dp"

android:layout_marginEnd="10dp"

android:layout_marginBottom="10dp" />

</RelativeLayout>

testing.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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:background="@color/color_white"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:orientation="horizontal"
            android:weightSum="2">

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_gravity="center_vertical"
                android:layout_weight="1"
                android:orientation="vertical">

                <!--Text view to display City name-->
                <TextView
                    android:id="@+id/state"
                    android:layout_width="210dp"
                    android:layout_height="match_parent"
                    android:gravity="center_vertical"
                    android:text="City Name"
                    android:textColor="@color/colorAccent"
                    android:textSize="14sp"
                    android:textStyle="bold" />
            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:orientation="vertical">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="horizontal">

                    <!--Text view to display Active Cases-->
                    <TextView
                        android:layout_width="107dp"
                        android:layout_height="match_parent"
                        android:gravity="center_horizontal"
                        android:text="Active- "
                        android:textStyle="bold" />

                    <!--Text view to display Active Cases in Numbers-->
                    <TextView
                        android:id="@+id/active"
                        android:layout_width="72dp"
                        android:layout_height="wrap_content"
                        android:text="2323223 "
                        android:textColor="@color/active"
                        android:textStyle="bold" />

                    <!--Image view to display increase in Cases -->
                    <ImageView
                        android:layout_width="17dp"
                        android:layout_height="match_parent"
                        android:src="@drawable/change" />

                    <!--Text view to display Todays Active Cases in Numbers-->
                    <TextView
                        android:id="@+id/incactive"
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent"
                        android:gravity="center_horizontal"
                        android:text="32"
                        android:textColor="@color/active"
                        android:textStyle="bold" />
                </LinearLayout>

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="horizontal">

                    <!--Text view to display Cured Cases -->
                    <TextView
                        android:layout_width="107dp"
                        android:layout_height="match_parent"
                        android:gravity="center_horizontal"
                        android:text="Cured- "
                        android:textStyle="bold" />

                    <!--Text view to display Total Cured Cases in Numbers -->
                    <TextView
                        android:id="@+id/cured"
                        android:layout_width="72dp"
                        android:layout_height="wrap_content"
                        android:text="2323223 "
                        android:textColor="@color/recovered"
                        android:textStyle="bold" />

                    <!--Image view to display increase in Cases -->
                    <ImageView
                        android:layout_width="18dp"
                        android:layout_height="match_parent"
                        android:src="@drawable/change" />

                    <!--Text view to display Todays Cured Cases in Numbers -->
                    <TextView
                        android:id="@+id/inccured"
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent"
                        android:gravity="center_horizontal"
                        android:text="32"
                        android:textColor="@color/recovered"
                        android:textStyle="bold" />

                </LinearLayout>

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="horizontal">

                    <!--Text view to display deths Cases -->
                    <TextView
                        android:layout_width="107dp"
                        android:layout_height="match_parent"
                        android:gravity="center_horizontal"
                        android:text="death- "
                        android:textStyle="bold" />

                    <!--Text view to display total death Cases in Numbers -->
                    <TextView
                        android:id="@+id/death"
                        android:layout_width="72dp"
                        android:layout_height="wrap_content"
                        android:text="2323223 "
                        android:textColor="@color/deaths"
                        android:textStyle="bold" />

                    <!--Image view to display increase in Cases -->
                    <ImageView
                        android:layout_width="18dp"
                        android:layout_height="match_parent"
                        android:src="@drawable/change" />

                    <!--Text view to display todays death Cases in Numbers -->
                    <TextView
                        android:id="@+id/incdeath"
                        android:layout_width="wrap_content"
                        android:layout_height="match_parent"
                        android:gravity="center"
                        android:text="32"
                        android:textColor="@color/deaths"
                        android:textStyle="bold" />

                </LinearLayout>

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:orientation="horizontal">

                    <!--Text view to display total Number of cases Cases -->
                    <TextView
                        android:layout_width="107dp"
                        android:layout_height="match_parent"
                        android:gravity="center_horizontal"
                        android:text="total- "
                        android:textStyle="bold" />

                    <!--Text view to display total Number of cases Cases in Numbers -->
                    <TextView
                        android:id="@+id/total"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="2323223 "
                        android:textStyle="bold" />

                </LinearLayout>

            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

    <View
        android:layout_width="391dp"
        android:layout_height="6dp"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginStart="11dp"
        android:layout_marginLeft="20dp"
        android:layout_marginTop="113dp"
        android:layout_marginEnd="10dp"
        android:layout_marginRight="20dp"
        android:background="@color/color_two" />

</RelativeLayout>

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

<?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:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_margin="10dp"

android:background="@color/color_white"

android:orientation="vertical">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_margin="10dp"

android:orientation="horizontal"

android:weightSum="2">

<LinearLayout

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:layout_gravity="center_vertical"

android:layout_weight="1"

android:orientation="vertical">

<TextView

android:id="@+id/state"

android:layout_width="210dp"

android:layout_height="match_parent"

android:gravity="center_vertical"

android:text="City Name"

android:textColor="@color/colorAccent"

android:textSize="14sp"

android:textStyle="bold" />

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_weight="1"

android:orientation="vertical">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="horizontal">

<TextView

android:layout_width="107dp"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:text="Active- "

android:textStyle="bold" />

<TextView

android:id="@+id/active"

android:layout_width="72dp"

android:layout_height="wrap_content"

android:text="2323223 "

android:textColor="@color/active"

android:textStyle="bold" />

<ImageView

android:layout_width="17dp"

android:layout_height="match_parent"

android:src="@drawable/change" />

<TextView

android:id="@+id/incactive"

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:text="32"

android:textColor="@color/active"

android:textStyle="bold" />

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="horizontal">

<TextView

android:layout_width="107dp"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:text="Cured- "

android:textStyle="bold" />

<TextView

android:id="@+id/cured"

android:layout_width="72dp"

android:layout_height="wrap_content"

android:text="2323223 "

android:textColor="@color/recovered"

android:textStyle="bold" />

<ImageView

android:layout_width="18dp"

android:layout_height="match_parent"

android:src="@drawable/change" />

<TextView

android:id="@+id/inccured"

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:text="32"

android:textColor="@color/recovered"

android:textStyle="bold" />

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="horizontal">

<TextView

android:layout_width="107dp"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:text="death- "

android:textStyle="bold" />

<TextView

android:id="@+id/death"

android:layout_width="72dp"

android:layout_height="wrap_content"

android:text="2323223 "

android:textColor="@color/deaths"

android:textStyle="bold" />

<ImageView

android:layout_width="18dp"

android:layout_height="match_parent"

android:src="@drawable/change" />

<TextView

android:id="@+id/incdeath"

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:gravity="center"

android:text="32"

android:textColor="@color/deaths"

android:textStyle="bold" />

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="horizontal">

<TextView

android:layout_width="107dp"

android:layout_height="match_parent"

android:gravity="center_horizontal"

android:text="total- "

android:textStyle="bold" />

<TextView

android:id="@+id/total"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="2323223 "

android:textStyle="bold" />

</LinearLayout>

<View

android:layout_width="391dp"

android:layout_height="6dp"

android:layout_alignParentStart="true"

android:layout_alignParentTop="true"

android:layout_alignParentEnd="true"

android:layout_marginStart="11dp"

android:layout_marginLeft="20dp"

android:layout_marginTop="113dp"

android:layout_marginEnd="10dp"

android:layout_marginRight="20dp"

android:background="@color/color_two" />

</RelativeLayout>

Java Code

Model.java

public class Model {
    private String name, total, death, cured, active, incAct, incDec, incRec;

    public Model(String name, String total, String death, String cured,
                String active, String incAct, String incDec, String incRec)
    {
        this.name = name;
        this.total = total;
        this.death = death;
        this.cured = cured;
        this.active = active;
        this.incAct = incAct;
        this.incDec = incDec;
        this.incRec = incRec;
    }

    public String getIncAct()
    {
        return incAct;
    }

    public void setIncAct(String incAct)
    {
        this.incAct = incAct;
    }

    public String getIncDec()
    {
        return incDec;
    }

    public void setIncDec(String incDec)
    {
        this.incDec = incDec;
    }

    public String getIncRec()
    {
        return incRec;
    }

    public void setIncRec(String incRec)
    {
        this.incRec = incRec;
    }

    public String getName()
    {
        return name;
    }

    public void setName(String name)
    {
        this.name = name;
    }

    public String getTotal()
    {
        return total;
    }

    public void setTotal(String total)
    {
        this.total = total;
    }

    public String getDeath()
    {
        return death;
    }

    public void setDeath(String death)
    {
        this.death = death;
    }

    public String getCured()
    {
        return cured;
    }

    public void setCured(String cured)
    {
        this.cured = cured;
    }

    public String getActive()
    {
        return active;
    }

    public void setActive(String active)
    {
        this.active = active;
    }
}

public class Model {

private String name, total, death, cured, active, incAct, incDec, incRec;

public Model(String name, String total, String death, String cured,

String active, String incAct, String incDec, String incRec)

{

this.name = name;

this.total = total;

this.death = death;

this.cured = cured;

this.active = active;

this.incAct = incAct;

this.incDec = incDec;

this.incRec = incRec;

}

public String getIncAct()

{

return incAct;

}

public void setIncAct(String incAct)

{

this.incAct = incAct;

}

public String getIncDec()

{

return incDec;

}

public void setIncDec(String incDec)

{

this.incDec = incDec;

}

public String getIncRec()

{

return incRec;

}

public void setIncRec(String incRec)

{

this.incRec = incRec;

}

public String getName()

{

return name;

}

public void setName(String name)

{

this.name = name;

}

public String getTotal()

{

return total;

}

public void setTotal(String total)

{

this.total = total;

}

public String getDeath()

{

return death;

}

public void setDeath(String death)

{

this.death = death;

}

public String getCured()

{

return cured;

}

public void setCured(String cured)

{

this.cured = cured;

}

public String getActive()

{

return active;

}

public void setActive(String active)

{

this.active = active;

}

Step 7: Create an Adapter Class

Now create a new JAVA Adapter Class to put the data that have fetched into a ListView that has created before.

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import java.util.List;

// Create A Class Adapter
public class Adapter extends ArrayAdapter<Model> {
    private Context context;
    private List<Model> modelList;
    
    public Adapter(Context context, List<Model> modelList) {
        super(context, R.layout.testing, modelList);
        
        this.context = context;
        this.modelList = modelList;
    }

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

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.testing, null,true);

        // In this step we connect the XML with Java File
        TextView state = view.findViewById(R.id.state);
        TextView active = view.findViewById(R.id.active);
        TextView cured = view.findViewById(R.id.cured);
        TextView death = view.findViewById(R.id.death);
        TextView total = view.findViewById(R.id.total);
        TextView incactive = view.findViewById(R.id.incactive);
        TextView inccured = view.findViewById(R.id.inccured);
        TextView incdeath = view.findViewById(R.id.incdeath);

        // Adding Data to modellist
        state.setText(modelList.get(position).getName());
        active.setText(modelList.get(position).getActive());
        cured.setText(modelList.get(position).getCured());
        death.setText(modelList.get(position).getDeath());
        total.setText(modelList.get(position).getTotal());
        incactive.setText(modelList.get(position).getIncAct());
        inccured.setText(modelList.get(position).getIncRec());
        incdeath.setText(modelList.get(position).getIncDec());

        return view;
    }
}

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.TextView;

import androidx.annotation.NonNull;

import androidx.annotation.Nullable;

import java.util.List;

// Create A Class Adapter

public class Adapter extends ArrayAdapter<Model> {

private Context context;

private List<Model> modelList;

public Adapter(Context context, List<Model> modelList) {

super(context, R.layout.testing, modelList);

this.context = context;

this.modelList = modelList;

}

@NonNull

@Override

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

View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.testing, null,true);

// In this step we connect the XML with Java File

TextView state = view.findViewById(R.id.state);

TextView active = view.findViewById(R.id.active);

TextView cured = view.findViewById(R.id.cured);

TextView death = view.findViewById(R.id.death);

TextView total = view.findViewById(R.id.total);

TextView incactive = view.findViewById(R.id.incactive);

TextView inccured = view.findViewById(R.id.inccured);

TextView incdeath = view.findViewById(R.id.incdeath);

// Adding Data to modellist

state.setText(modelList.get(position).getName());

active.setText(modelList.get(position).getActive());

cured.setText(modelList.get(position).getCured());

death.setText(modelList.get(position).getDeath());

total.setText(modelList.get(position).getTotal());

incactive.setText(modelList.get(position).getIncAct());

inccured.setText(modelList.get(position).getIncRec());

incdeath.setText(modelList.get(position).getIncDec());

return view;

}

MainActivity.java

import android.os.Bundle;
import android.widget.ListView;
import android.widget.Toast;
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;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    ListView listView;

    public static List<Model> modelList = new ArrayList<>();
    Model model;
    Adapter adapter;

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

        listView = findViewById(R.id.listView);
        fetchData();

    }

    private void fetchData() {
        // The Link Through Which We Can Fetch Data
        String url = "https://api.covid19india.org/state_district_wise.json";

        StringRequest request = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {

                try {
                    // Creating JSON Object
                    JSONObject object = new JSONObject(response);

                    // From that object we are fetching data
                    JSONObject object1 = object.getJSONObject("Uttar Pradesh");
                    JSONObject object2 = object1.getJSONObject("districtData");
                    JSONObject object3 = object2.getJSONObject("Prayagraj");
                    JSONObject object4 = object3.getJSONObject("delta");


                    String active = object3.getString("active");
                    String confirmed = object3.getString("confirmed");
                    String deceased = object3.getString("deceased");
                    String recovered = object3.getString("recovered");

                    String confInc = object4.getString("confirmed");
                    String confDec = object4.getString("deceased");
                    String confRec = object4.getString("recovered");

                    model = new Model("Prayagraj", confirmed, deceased, recovered, active,
                                                                    confInc, confDec, confRec);
                    // placing data into the app using AdapterClass
                    modelList.add(model);

                    // Creating JSON Object
                    object3 = object2.getJSONObject("Ballia");

                    // From that object we are fetching data
                    active = object3.getString("active");
                    confirmed = object3.getString("confirmed");
                    deceased = object3.getString("deceased");
                    recovered = object3.getString("recovered");
                    object4 = object3.getJSONObject("delta");
                    confInc = object4.getString("confirmed");
                    confDec = object4.getString("deceased");
                    confRec = object4.getString("recovered");

                    model = new Model("Ballia", confirmed, deceased, recovered, active,
                                                                confInc, confDec, confRec);
                    // placing data into the app using AdapterClass
                    modelList.add(model);

                    // Creating JSON Object
                    object3 = object2.getJSONObject("Lucknow");

                    // From that object we are fetching data
                    active = object3.getString("active");
                    confirmed = object3.getString("confirmed");
                    deceased = object3.getString("deceased");
                    recovered = object3.getString("recovered");
                    object4 = object3.getJSONObject("delta");

                    confInc = object4.getString("confirmed");
                    confDec = object4.getString("deceased");
                    confRec = object4.getString("recovered");

                    model = new Model("Lucknow", confirmed, deceased, recovered, active,
                                                                    confInc, confDec, confRec);
                    // placing data into the app using AdapterClass
                    modelList.add(model);

                    // Creating JSON Object
                    object3 = object2.getJSONObject("Varanasi");

                    // From that object we are fetching data
                    active = object3.getString("active");
                    confirmed = object3.getString("confirmed");
                    deceased = object3.getString("deceased");
                    recovered = object3.getString("recovered");
                    object4 = object3.getJSONObject("delta");

                    confInc = object4.getString("confirmed");
                    confDec = object4.getString("deceased");
                    confRec = object4.getString("recovered");

                    model = new Model("Varanasi", confirmed, deceased, recovered, active,
                                                                    confInc, confDec, confRec);
                    // placing data into the app using AdapterClass
                    modelList.add(model);

                    // Creating JSON Object
                    object3 = object2.getJSONObject("Agra");

                    // From that object we are fetching data
                    active = object3.getString("active");
                    confirmed = object3.getString("confirmed");
                    deceased = object3.getString("deceased");
                    recovered = object3.getString("recovered");
                    object4 = object3.getJSONObject("delta");
                    confInc = object4.getString("confirmed");
                    confDec = object4.getString("deceased");
                    confRec = object4.getString("recovered");

                    model = new Model("Agra", confirmed, deceased, recovered, active,
                                                                confInc, confDec, confRec);
                    // placing data into the app using AdapterClass
                    modelList.add(model);

                    adapter = new Adapter(MainActivity.this, modelList);
                    listView.setAdapter(adapter);

                    // In case of error it will run
                } catch (JSONException e) {
                    e.printStackTrace();
                }

            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                // In case of error it will run
                Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
            }
        });

        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);
    }
}

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

import android.os.Bundle;

import android.widget.ListView;

import android.widget.Toast;

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;

import org.json.JSONException;

import org.json.JSONObject;

import java.util.ArrayList;

import java.util.List;

public class MainActivity extends AppCompatActivity {

ListView listView;

public static List<Model> modelList = new ArrayList<>();

Model model;

Adapter adapter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

listView = findViewById(R.id.listView);

fetchData();

}

private void fetchData() {

// The Link Through Which We Can Fetch Data

String url = "https://api.covid19india.org/state_district_wise.json";

StringRequest request = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {

@Override

public void onResponse(String response) {

try {

// Creating JSON Object

JSONObject object = new JSONObject(response);

// From that object we are fetching data

JSONObject object1 = object.getJSONObject("Uttar Pradesh");

JSONObject object2 = object1.getJSONObject("districtData");

JSONObject object3 = object2.getJSONObject("Prayagraj");

JSONObject object4 = object3.getJSONObject("delta");

String active = object3.getString("active");

String confirmed = object3.getString("confirmed");

String deceased = object3.getString("deceased");

String recovered = object3.getString("recovered");

String confInc = object4.getString("confirmed");

String confDec = object4.getString("deceased");

String confRec = object4.getString("recovered");

model = new Model("Prayagraj", confirmed, deceased, recovered, active,

confInc, confDec, confRec);

// placing data into the app using AdapterClass

modelList.add(model);

// Creating JSON Object

object3 = object2.getJSONObject("Ballia");

// From that object we are fetching data

active = object3.getString("active");

confirmed = object3.getString("confirmed");

deceased = object3.getString("deceased");

recovered = object3.getString("recovered");

object4 = object3.getJSONObject("delta");

confInc = object4.getString("confirmed");

confDec = object4.getString("deceased");

confRec = object4.getString("recovered");

model = new Model("Ballia", confirmed, deceased, recovered, active,

confInc, confDec, confRec);

// placing data into the app using AdapterClass

modelList.add(model);

// Creating JSON Object

object3 = object2.getJSONObject("Lucknow");

// From that object we are fetching data

active = object3.getString("active");

confirmed = object3.getString("confirmed");

deceased = object3.getString("deceased");

recovered = object3.getString("recovered");

object4 = object3.getJSONObject("delta");

confInc = object4.getString("confirmed");

confDec = object4.getString("deceased");

confRec = object4.getString("recovered");

model = new Model("Lucknow", confirmed, deceased, recovered, active,

confInc, confDec, confRec);

// placing data into the app using AdapterClass

modelList.add(model);

// Creating JSON Object

object3 = object2.getJSONObject("Varanasi");

// From that object we are fetching data

active = object3.getString("active");

confirmed = object3.getString("confirmed");

deceased = object3.getString("deceased");

recovered = object3.getString("recovered");

object4 = object3.getJSONObject("delta");

confInc = object4.getString("confirmed");

confDec = object4.getString("deceased");

confRec = object4.getString("recovered");

model = new Model("Varanasi", confirmed, deceased, recovered, active,

confInc, confDec, confRec);

// placing data into the app using AdapterClass

modelList.add(model);

// Creating JSON Object

object3 = object2.getJSONObject("Agra");

// From that object we are fetching data

active = object3.getString("active");

confirmed = object3.getString("confirmed");

deceased = object3.getString("deceased");

recovered = object3.getString("recovered");

object4 = object3.getJSONObject("delta");

confInc = object4.getString("confirmed");

confDec = object4.getString("deceased");

confRec = object4.getString("recovered");

model = new Model("Agra", confirmed, deceased, recovered, active,

confInc, confDec, confRec);

// placing data into the app using AdapterClass

modelList.add(model);

adapter = new Adapter(MainActivity.this, modelList);

listView.setAdapter(adapter);

// In case of error it will run

} catch (JSONException e) {

e.printStackTrace();

}

}, new Response.ErrorListener() {

@Override

public void onErrorResponse(VolleyError error) {

// In case of error it will run

Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();

}

});

RequestQueue requestQueue = Volley.newRequestQueue(this);

requestQueue.add(request);

}

Build a India COVID-19 Cases Tracker Android App By City and State in Java & XML Using Volley and COVID19India API in Android Studio Full Project For Beginners

XML Code

Java Code

Step 7: Create an Adapter Class

Leave a Reply Cancel reply

XML Code

Java Code

Step 7: Create an Adapter Class

Related posts:

You Might Also Like

Android Tutorial to Design Beautiful Login Screen Form Using XML and Java in Android Studio Full Project For Beginners

Android Tutorial to Parse JSON Data From REST API and Display it in ListView Widget in Android Studio and Java Full Project For Beginners

Java Gradle Plugin to Upload Multiple Files to Google Drive in Groovy & Android App

Leave a Reply Cancel reply