androidstudioexp1

Ex.No:1 To create a HelloWorld Activity using all lifecycles methods to display messages.

AIM:

To create a HelloWorld Activity using all lifecycles methods to display messages using Android Studio.

EQUIPMENTS REQUIRED:

Android Studio(Min.required Artic Fox)

ALGORITHM:

Step 1:

Open Android Stdio and then click on File -> New -> New project.

Step 2:

Then type the Application name as HelloWorld 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:

Display message give in MainActivity file.

PROGRAM:

Program to print the text “Hello World”.
Developed by: SURYA R
Registeration Number : 212220230052

MainActivity.java:

package com.example.exp1;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toast toast=Toast.makeText(getApplicationContext(),"OnCreate Executed",Toast.LENGTH_LONG);
        toast.show();
    }
    protected void onStart(){
        super.onStart();
        Toast toast=Toast.makeText(getApplicationContext(),"OnStart Executed",Toast.LENGTH_LONG);
        toast.show();
    }
    protected void onResume(){
        super.onResume();
        Toast toast=Toast.makeText(getApplicationContext(),"OnResume Executed",Toast.LENGTH_LONG);
        toast.show();
    }
    protected void onPause(){
        super.onPause();
        Toast toast=Toast.makeText(getApplicationContext(),"OnPause Executed",Toast.LENGTH_LONG);
        toast.show();
    }
    protected void onStop(){
        super.onStop();
        Toast toast=Toast.makeText(getApplicationContext(),"OnStop Executed",Toast.LENGTH_LONG);
        toast.show();
    }
    protected void onRestart(){
        super.onRestart();
        Toast toast=Toast.makeText(getApplicationContext(),"OnRestart Executed",Toast.LENGTH_LONG);
        toast.show();
    }
    protected void onDestroy(){
        super.onDestroy();
        Toast toast=Toast.makeText(getApplicationContext(),"OnDestroy Executed",Toast.LENGTH_LONG);
        toast.show();
    }
}

activity_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:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#E427013E"
        android:text="Hello World!"
        android:textSize="43sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

OUTPUT

RESULT

Thus a Simple Android Application create a HelloWorld Activity using all lifecycles methods to display messages using Android Studio is developed and executed successfully.

suryar17 / androidstudioexp1 Goto Github PK