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27 Practical

The document describes an Android login screen application with an activity_main.xml layout file containing EditText fields for a username and password, a login button, and two TextView fields. The MainActivity.java file contains code to retrieve the username and password on button click, check for a hardcoded valid login, and display Toast messages for successful or failed login attempts.

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shrutinimbekar05
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21 views4 pages

27 Practical

The document describes an Android login screen application with an activity_main.xml layout file containing EditText fields for a username and password, a login button, and two TextView fields. The MainActivity.java file contains code to retrieve the username and password on button click, check for a hardcoded valid login, and display Toast messages for successful or failed login attempts.

Uploaded by

shrutinimbekar05
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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27th Practical

1) Activity_main.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:gravity="center_vertical"
android:orientation="vertical"
android:padding="16dp">

<EditText
android:id="@+id/editTextUsername"
android:layout_width="match_parent"
android:layout_height="60dp"
android:hint="Username"
android:inputType="text" />

<EditText
android:id="@+id/editTextPassword"
android:layout_width="match_parent"
android:layout_height="60dp"
android:hint="Password"
android:inputType="textPassword" />

<Button
android:id="@+id/buttonLogin"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Login" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/tv"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/tv2"/>
</LinearLayout>

MainActivity.java
package com.example.myapplication;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
EditText editTextUsername, editTextPassword;
Button buttonLogin;
TextView tv;

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

editTextUsername = findViewById(R.id.editTextUsername);
editTextPassword = findViewById(R.id.editTextPassword);
buttonLogin = findViewById(R.id.buttonLogin);
tv=findViewById(R.id.tv);

buttonLogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String username = editTextUsername.getText().toString();
String password = editTextPassword.getText().toString();
if (username.equals("Admin")&& password.equals("123")) {
Toast.makeText(MainActivity.this, "Login Succesfull",
Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(MainActivity.this, "Unsuccesful",
Toast.LENGTH_SHORT).show();
}

}
});
}
}
Output: -

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