Android Program : Create an Android App with Login Screen. On successful login, gives message go to next Activity (Without Using Database& use Table Layout).

 Create an Android App with Login Screen. On successful login, gives message go to next Activity (Without Using Database& use Table Layout). 

Soln :

activity_main.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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Login"
        android:layout_marginTop="80dp"
        android:layout_gravity="center"
        android:textAppearance="?android:attr/textAppearanceLarge" />



    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_marginTop="50dp"
        android:background="#9DA7D0" >

        <EditText
            android:id="@+id/uname"
            android:layout_width="250dp"
            android:layout_height="40dp"
            android:layout_gravity="center"
            android:layout_marginTop="40dp"
            android:background="#ffffff"
            android:hint="username..." >

        </EditText>

        <EditText
            android:id="@+id/pwd"
            android:layout_width="250dp"
            android:layout_height="40dp"
            android:layout_gravity="center"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="20dp"
            android:inputType="textPassword"
            android:background="#ffffff"
            android:hint="password..." >

        </EditText>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="20dp"
            android:gravity="center" >

            <Button
                android:id="@+id/loginbtn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Login" />

            <Button
                android:id="@+id/clrbtn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Clear" />
        </LinearLayout>

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#ffffff"
            android:textSize="20dp"
            android:text=" Username = androidcoding \n  Password = androidcoding" />

    </LinearLayout>

</LinearLayout>

MainActivity.java

package com.example.slip15a;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    Button loginbtn, clrbtn;
    EditText uname, pwd;
    String getuname, getpwd;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        loginbtn = (Button) findViewById(R.id.loginbtn);
        clrbtn = (Button) findViewById(R.id.clrbtn);

        uname = (EditText) findViewById(R.id.uname);
        pwd = (EditText) findViewById(R.id.pwd);


        loginbtn.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                getuname = uname.getText().toString();
                getpwd = pwd.getText().toString();

                if (getuname.matches("androidcoding") && getpwd.matches("androidcoding")) {

                    Intent i = new Intent(MainActivity.this, HomeScreen.class);
                    startActivity(i);
                } else {

                    Toast.makeText(MainActivity.this,
                            "enter correct username & password", Toast.LENGTH_LONG).show();

                }

            }
        });

        clrbtn.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                uname.setText("");
                pwd.setText("");

            }
        });

    }
}

activity_home_screen.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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".HomeScreen">
    <TextView
        android:id="@+id/textwelcome"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Welcome"
        android:layout_marginTop="80dp"
        android:layout_gravity="center"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/loggedin"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="You have successfully logged in"
        android:layout_marginTop="80dp"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:gravity="center"
        android:layout_gravity="center"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button
        android:id="@+id/logoutbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Logout"
        android:layout_marginTop="80dp"
        android:layout_gravity="center" />

</LinearLayout>

HomeScreen.Java

package com.example.slip15a;

import androidx.appcompat.app.AppCompatActivity;

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

public class HomeScreen extends AppCompatActivity {
    Button logout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home_screen);
        logout = (Button) findViewById(R.id.logoutbtn);

        logout.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                Intent i = new Intent(HomeScreen.this, MainActivity.class);
                startActivity(i);

            }
        });
    }
}

Screenshot