Question 10
Download Q10_Basic_Login_App.apk to Run and Test Locally
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<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/RelativeLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<TextView
android:id="@+id/t1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:text="Login Application"
android:layout_marginTop="25dp"
android:textSize="25dp"
android:textColor="@color/black"
/>
<TextView
android:id="@+id/t2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="50dp"
android:layout_marginTop="250dp"
android:text="Username"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/t1"
android:layout_marginLeft="50dp" />
<TextView
android:id="@+id/t3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dp"
android:layout_marginTop="280dp"
android:text="Password"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/t2" />
<EditText
android:id="@+id/e1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="120dp"
android:layout_marginTop="230dp"
android:ems="10"
android:inputType="textPersonName"
app:layout_constraintStart_toEndOf="@id/t2"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginLeft="50dp" />
<EditText
android:id="@+id/e2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="120dp"
android:layout_marginTop="260dp"
android:ems="10"
android:inputType="textPassword"
app:layout_constraintLeft_toRightOf="@id/t3"
app:layout_constraintTop_toBottomOf="@id/t2" />
<Button
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:onClick="check"
android:text="Login"
android:layout_marginTop="230dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</RelativeLayout>package com.example.q10_basic_login_app;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void check(View v) {
String txt = "Welcome ";
EditText ed1 = (EditText) findViewById(R.id.e1);
EditText ed2 = (EditText) findViewById(R.id.e2);
String a=ed1.getText().toString();
String b=ed2.getText().toString();
if(a.equals("Jatin") && b.equals("8647"))
{
Toast.makeText(this, txt + a,
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this,"Invalid User",
Toast.LENGTH_LONG).show();
}
}
}