Program to get IP Address of the device |Android Program|

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
 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" 
 tools:context=".MainActivity">

<Button 
android:id="@+id/getIP" 
android:layout_width="wrap_content
android:layout_height="wrap_content" 
android:layout_marginTop="152dp"  
android:text="GET"       
app:layout_constraintEnd_toEndOf="parent"     
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView  
android:id="@+id/ViewIP" 
android:layout_width="152dp"
android:layout_height="77dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent" 
app:layout_constraintTop_toBottomOf="@+id/getIP"
app:layout_constraintVertical_bias="0.279" />
</androidx.constraintlayout.widget.ConstraintLayout>


MainActivity.java

package com.example.getip;
import androidx.appcompat.app.AppCompatActivity;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.text.format.Formatter;

public class MainActivity extends AppCompatActivity {

Button b1;
TextView v1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button) findViewById(R.id.getIP);
b1.setOnClickListener(new View.OnClickListener() {
@Override 
public void onClick(View v) {
v1 = (TextView) findViewById(R.id.ViewIP);
WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
String ip = Formatter.formatIpAddress(wm.getConnectionInfo().getIpAddress());
v1.setText("Your Device IP Address: " + ip);
}
});
}

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 package="com.example.getip">
 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
 <application
   android:icon="@mipmap/ic_launcher"   
     android:label="@string/app_name"    
    android:roundIcon="@mipmap/ic_launcher_round"   
     android:supportsRtl="true"        android:theme="@style/AppTheme"   
     tools:ignore="AllowBackup,GoogleAppIndexingWarning">
    <activity android:name=".MainActivity">
     <intent-filter>
     <action android:name="android.intent.action.MAIN" />
     <category android:name="android.intent.category.LAUNCHER" />
     </intent-filter>
     </activity>
    </application>

</manifest>
Design