In order to get started you need to install the volley library inside your android project like this

colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#42C14B</color>
    <color name="colorPrimaryDark">#3BC545</color>
    <color name="colorAccent">#05af9b</color>

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

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/color_white"
    android:orientation="vertical"
    tools:context=".MainActivity">


    <!--Linear Layout to display all the details-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="20dp"
        android:orientation="vertical">

        <!--Text view to display Global stats-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Global Stats"
            android:textColor="#050505"
            android:textAllCaps="true"
            android:textAlignment="center"
            android:textSize="35sp"
            android:textStyle="bold"/>

            <!--Text view to display Total Cases-->
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:fontFamily="sans-serif-light"
                android:layout_marginTop="20dp"
                android:text="Total Cases"
                android:textAlignment="center"
                android:textStyle="bold"
                android:textSize="30sp"/>

            <!--Text view to display the updated number when data
            will fetch from the API. For now default set to 0 -->
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="0"
                android:id="@+id/tvCases"
                android:textAlignment="center"
                android:textSize="25sp"
                android:textColor="@color/color_one"
                android:textStyle="bold"
                android:fontFamily="sans-serif-light" />

        <!--Text view to display Recovered Cases-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Recovered"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvRecovered"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        <!--Text view to display Critical Cases-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Critical"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvCritical"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        <!--Text view to display Active Cases-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Active"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvActive"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        <!--Text view to display Today Cases-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Today Cases"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvTodayCases"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        <!--Text view to display Total Deaths-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Total Deaths"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvTotalDeaths"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        <!--Text view to display Today Deaths-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Today Deaths"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvTodayDeaths"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        <!--Text view to display Affected Countries-->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fontFamily="sans-serif-light"
            android:text="Affected Countries"
            android:textAlignment="center"
            android:textStyle="bold"
            android:textSize="30sp"/>

        <!--Text view to display the updated number when data
        will fetch from the API. For now default set to 0 -->
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="0"
            android:id="@+id/tvAffectedCountries"
            android:textAlignment="center"
            android:textSize="25sp"
            android:textColor="@color/color_one"
            android:textStyle="bold"
            android:fontFamily="sans-serif-light" />

        </LinearLayout>

</ScrollView>

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

210

211

212

213

214

215

216

217

218

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

<ScrollView

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:layout_width="match_parent"

android:layout_height="match_parent"

android:background="@color/color_white"

android:orientation="vertical"

tools:context=".MainActivity">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:padding="20dp"

android:orientation="vertical">

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Global Stats"

android:textColor="#050505"

android:textAllCaps="true"

android:textAlignment="center"

android:textSize="35sp"

android:textStyle="bold"/>

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:layout_marginTop="20dp"

android:text="Total Cases"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvCases"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Recovered"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvRecovered"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Critical"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvCritical"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Active"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvActive"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Today Cases"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvTodayCases"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Total Deaths"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvTotalDeaths"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Today Deaths"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvTodayDeaths"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:fontFamily="sans-serif-light"

android:text="Affected Countries"

android:textAlignment="center"

android:textStyle="bold"

android:textSize="30sp"/>

<!--Text view to display the updated number when data

will fetch from the API. For now default set to 0 -->

<TextView

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="0"

android:id="@+id/tvAffectedCountries"

android:textAlignment="center"

android:textSize="25sp"

android:textColor="@color/color_one"

android:textStyle="bold"

android:fontFamily="sans-serif-light" />

</LinearLayout>

</ScrollView>

Java Code

package com.example.covid_19tracker;

import androidx.appcompat.app.AppCompatActivity;

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

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;

public class MainActivity
    extends AppCompatActivity {

    // Create the object of TextView
    TextView tvCases, tvRecovered,
        tvCritical, tvActive,
        tvTodayCases, tvTotalDeaths,
        tvTodayDeaths,
        tvAffectedCountries;

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

        // Link those objects with their respective id's
        // that we have given in .XML file
        tvCases
            = findViewById(R.id.tvCases);
        tvRecovered
            = findViewById(R.id.tvRecovered);
        tvCritical
            = findViewById(R.id.tvCritical);
        tvActive
            = findViewById(R.id.tvActive);
        tvTodayCases
            = findViewById(R.id.tvTodayCases);
        tvTotalDeaths
            = findViewById(R.id.tvTotalDeaths);
        tvTodayDeaths
            = findViewById(R.id.tvTodayDeaths);
        tvAffectedCountries
            = findViewById(R.id.tvAffectedCountries);

        // Creating a method fetchdata()
        fetchdata();
    }

    private void fetchdata()
    {

        // Create a String request
        // using Volley Library
        String url = "https:// corona.lmao.ninja/v2/all";

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

                        // Handle the JSON object and
                        // handle it inside try and catch
                        try {

                            // Creating object of JSONObject
                            JSONObject jsonObject
                                = new JSONObject(
                                    response.toString());

                            // Set the data in text view
                            // which are available in JSON format
                            // Note that the parameter inside
                            // the getString() must match
                            // with the name given in JSON format
                            tvCases.setText(
                                jsonObject.getString(
                                    "cases"));
                            tvRecovered.setText(
                                jsonObject.getString(
                                    "recovered"));
                            tvCritical.setText(
                                jsonObject.getString(
                                    "critical"));
                            tvActive.setText(
                                jsonObject.getString(
                                    "active"));
                            tvTodayCases.setText(
                                jsonObject.getString(
                                    "todayCases"));
                            tvTotalDeaths.setText(
                                jsonObject.getString(
                                    "deaths"));
                            tvTodayDeaths.setText(
                                jsonObject.getString(
                                    "todayDeaths"));
                            tvAffectedCountries.setText(
                                jsonObject.getString(
                                    "affectedCountries"));
                        }
                        catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error)
                    {
                        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

package com.example.covid_19tracker;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import android.widget.TextView;

import android.widget.Toast;

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;

public class MainActivity

extends AppCompatActivity {

// Create the object of TextView

TextView tvCases, tvRecovered,

tvCritical, tvActive,

tvTodayCases, tvTotalDeaths,

tvTodayDeaths,

tvAffectedCountries;

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// Link those objects with their respective id's

// that we have given in .XML file

tvCases

= findViewById(R.id.tvCases);

tvRecovered

= findViewById(R.id.tvRecovered);

tvCritical

= findViewById(R.id.tvCritical);

tvActive

= findViewById(R.id.tvActive);

tvTodayCases

= findViewById(R.id.tvTodayCases);

tvTotalDeaths

= findViewById(R.id.tvTotalDeaths);

tvTodayDeaths

= findViewById(R.id.tvTodayDeaths);

tvAffectedCountries

= findViewById(R.id.tvAffectedCountries);

// Creating a method fetchdata()

fetchdata();

}

private void fetchdata()

{

// Create a String request

// using Volley Library

String url = "https:// corona.lmao.ninja/v2/all";

StringRequest request

= new StringRequest(

Request.Method.GET,

url,

new Response.Listener<String>() {

@Override

public void onResponse(String response)

{

// Handle the JSON object and

// handle it inside try and catch

try {

// Creating object of JSONObject

JSONObject jsonObject

= new JSONObject(

response.toString());

// Set the data in text view

// which are available in JSON format

// Note that the parameter inside

// the getString() must match

// with the name given in JSON format

tvCases.setText(

jsonObject.getString(

"cases"));

tvRecovered.setText(

jsonObject.getString(

"recovered"));

tvCritical.setText(

jsonObject.getString(

"critical"));

tvActive.setText(

jsonObject.getString(

"active"));

tvTodayCases.setText(

jsonObject.getString(

"todayCases"));

tvTotalDeaths.setText(

jsonObject.getString(

"deaths"));

tvTodayDeaths.setText(

jsonObject.getString(

"todayDeaths"));

tvAffectedCountries.setText(

jsonObject.getString(

"affectedCountries"));

}

catch (JSONException e) {

e.printStackTrace();

}

new Response.ErrorListener() {

@Override

public void onErrorResponse(VolleyError error)

{

Toast.makeText(

MainActivity.this,

error.getMessage(),

Toast.LENGTH_SHORT)

.show();

}

});

RequestQueue requestQueue

= Volley.newRequestQueue(this);

requestQueue.add(request);

}

Build a COVID-19 Tracker Android App in Java & XML Using Volley Using Android Studio Full Project For Beginners

XML Code

Java Code

Leave a Reply Cancel reply

XML Code

Java Code

Related posts:

You Might Also Like

Firebase Google Login in Android (Part-1) Demo

Android Tutorial to Show Loading Spinner Using Progressbar Widget in Android Studio Using Java Full Project For Beginners

How to Create and Delete Text Files in External Storage Programmatically in Android App Using Android Studio in Java Full Project For Beginners

Leave a Reply Cancel reply