nsgk_android/app/src/main/java/com/nsgk/ruralWeb/WelcomeActivity.java

package com.nsgk.ruralWeb;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.AnticipateInterpolator;
import android.widget.ImageView;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

public class WelcomeActivity extends AppCompatActivity {
    private ImageView imageView;

    private Handler handler = new Handler() {
        @SuppressLint("HandlerLeak")
        @Override
        public void handleMessage(@NonNull Message msg) {

            switch (msg.what) {
                case 1:
                    finish();
                    Intent intent = new Intent(WelcomeActivity.this, FullscreenActivity.class);
                    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                    startActivity(intent);
                    overridePendingTransition(R.anim.activity_in, R.anim.activity_out);
                    break;
                default:
                    throw new IllegalStateException("Unexpected value: " + msg.what);
            }
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.activity_welcome);
        imageView = findViewById(R.id.imageView);
        Animation animation = AnimationUtils.loadAnimation(this, R.anim.img_anim);
        animation.start();
        imageView.animate()
                .scaleXBy(1.5f)
                .scaleYBy(1.5f)
                .setInterpolator(new AnticipateInterpolator())
                .setDuration(1300)
                .setListener(new AnimatorListenerAdapter() {
                    @Override
                    public void onAnimationStart(Animator animation) {
                        handler.sendEmptyMessageDelayed(1, 1000);
                    }
                });
    }
}