Ex.No:4 To create a two screens , first screen will take one number input from user. After click on Factorial button, second screen will open and it should display factorial of the same number using Explicit Intents
Date : 30.03.23
To create a two screens , first screen will take one number input from user. After click on Factorial button, second screen will open and it should display factorial of the same number using Explicit Intents.
Latest Version Android Studio.
Step 1: Open Android Studio and then click on File -> New -> New project.
Step 2: Then type the Application name as “ExplicitIntent″ and click Next.
Step 3: Then select the Minimum SDK as shown below and click Next.
Step 4: Then select the Empty Activity and click Next. Finally click Finish.
Step 5: Design layout in activity_main.xml.
Step 6: Write the logic to find factorial of a number in MainActivity file.
Step 7: Design layout in activity_main2.xml.
Step 8: Use Explicit intent in MainActivity2 file to get the result.
Step 9: Save and run the application.
Program to print the text ExplicitIntent
Developed by:Sreevarsha.D
Registeration Number :212221040159
activiity_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">
<TextView
android:id="@+id/maintxt"
android:layout_width="317dp"
android:layout_height="38dp"
android:layout_marginTop="36dp"
android:fontFamily="sans-serif-medium"
android:text="@string/factorial_calculator"
android:textAlignment="center"
android:textColor="@color/purple_500"
android:textSize="25sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/text1"
android:layout_width="181dp"
android:layout_height="48dp"
android:layout_marginStart="64dp"
android:layout_marginTop="240dp"
android:fontFamily="sans-serif-light"
android:text="@string/enter_a_number"
android:textColor="@color/purple_500"
android:textSize="24sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<EditText
android:id="@+id/n1"
android:layout_width="95dp"
android:layout_height="50dp"
android:layout_alignEnd="@+id/text1"
android:layout_marginTop="236dp"
android:layout_marginEnd="60dp"
android:autofillHints=""
android:textColor="#EA80FC"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/btn1"
android:layout_width="142dp"
android:layout_height="45dp"
android:layout_marginBottom="360dp"
android:background="#2C34CF"
android:fontFamily="sans-serif-medium"
android:text="@string/calculate"
android:textColor="@color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.498"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="@+id/resum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="150dp"
tools:ignore="MissingConstraints" />
</androidx.constraintlayout.widget.ConstraintLayout>
MainActivity.java
package com.example.explicitintent;
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.TextView;
import com.example.explicitintent.MainActivity2;
public class MainActivity extends AppCompatActivity {
public static String Send_Result;
EditText num1;
TextView txtrslt;
Button btn;
double n,i=1,fact=1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
num1 = (EditText) findViewById(R.id.n1);
txtrslt = (TextView) findViewById(R.id.resum);
btn = (Button) findViewById(R.id.btn1);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
n = Double.parseDouble(num1.getText().toString());
while (i<=n)
{
fact=fact*i;
i++;
}
String message = Double.toString(fact);
Intent myIntent = new Intent(MainActivity.this, MainActivity2.class);
myIntent.putExtra(Send_Result, message);
startActivity(myIntent);
}
});
}
}
Activity_main2.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=".MainActivity2">
<TextView
android:id="@+id/textView"
android:layout_width="132dp"
android:layout_height="40dp"
android:fontFamily="sans-serif-smallcaps"
android:text="@string/resulT"
android:textColor="@color/purple_500"
android:textSize="34sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.229"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.413" />
<TextView
android:id="@+id/reslt"
android:layout_width="187dp"
android:layout_height="47dp"
android:text="@string/_00_00"
android:textColor="@color/purple_500"
android:textSize="38sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.928"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.407" />
</androidx.constraintlayout.widget.ConstraintLayout>
MainActivity2.java
package com.example.explicitintent;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity2 extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
Intent intent = getIntent();
String message = intent.getStringExtra(com.example.explicitintent.MainActivity.Send_Result);
TextView textView = findViewById(R.id.reslt);
textView.setText(message);
}
}
Thus a Simple Android Application create a Explicit Intents using Android Studio is developed and executed successfully.