AMP PRACTICAL 4

 

Aim: Create the login form using different layout                               

Activity_Main.xml

 

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

<RelativeLayout 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">

<TextView android:id="@+id/textview"

android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:text="Login Example" android:textSize="35dp" />

<EditText

android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:id = "@+id/editText" android:hint = "Enter Name" android:focusable = "true" android:textColorHighlight = "#ff7eff15" android:layout_marginTop = "46dp" android:layout_alignParentLeft = "true" android:layout_alignParentStart = "true" android:layout_alignParentRight = "true"

android:layout_alignParentEnd = "true" />

<EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:inputType="textPassword" android:ems="10"

android:id="@+id/editText2" android:layout_below="@+id/editText" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_alignRight="@+id/editText" android:layout_alignEnd="@+id/editText" android:hint="Password" />

<TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content"

android:layout_below="@+id/editText2" android:layout_alignParentStart="true" android:layout_alignParentLeft="true" android:text="Attempts Remaining" android:textSize="25dp" />

<TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content"

android:layout_alignTop="@+id/textView2" android:layout_alignBottom="@+id/textView2" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_toEndOf="@+id/textview" android:layout_toRightOf="@+id/textview" android:text="Text"

android:textSize="25dp" />

<Button

android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="login" android:id="@+id/button" android:layout_alignParentBottom="true" android:layout_toLeftOf="@+id/textview" android:layout_toStartOf="@+id/textview" />

<Button

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:text="Cancel" android:id="@+id/button2" android:layout_alignParentBottom="true" android:layout_toRightOf="@+id/textview" android:layout_toEndOf="@+id/textview" />

 

</RelativeLayout>

 

MainActivity.java

 package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity; 

import android.os.Bundle;

import android.graphics.Color;

import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast;

 

public class MainActivity extends AppCompatActivity { Button b1,b2;

EditText ed1,ed2; TextView tx1;

int counter = 3;

@Override

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

b1 = (Button)findViewById(R.id.button);

ed1 = (EditText)findViewById(R.id.editText); ed2 = (EditText)findViewById(R.id.editText2); b2 = (Button)findViewById(R.id.button2);

tx1 = (TextView)findViewById(R.id.textView3); b1.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if(ed1.getText().toString().equals("sana") && ed2.getText().toString().equals("admin")) {

Toast.makeText(getApplicationContext(),

"Login Successful...",Toast.LENGTH_SHORT).show();

}else{

Toast.makeText(getApplicationContext(), "Wrong Credentials",Toast.LENGTH_SHORT).show();

tx1.setVisibility(View.VISIBLE); tx1.setBackgroundColor(Color.RED); counter--; tx1.setText(Integer.toString(counter)); if (counter == 0) {

b1.setEnabled(false);

}

}

}

});

b2.setOnClickListener(new View.OnClickListener() { @Override

public void onClick(View v) { finish();

}

});

}

}

Output