Android การใส่ Effect ให้กับ Intent ใน Activity ระหว่างการเปลี่ยน Activity

package com.myapp;

import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.app.Activity;
import android.content.Intent;

public class MainActivity extends Activity {

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
	
		// Button1
        final Button btn1 = (Button) findViewById(R.id.button1);
        // Perform action on click
        btn1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            	
            	// Open Form 2           	
                new Handler().postDelayed(new Runnable() {
                    public void run() {
                            Intent newActivity = new Intent(MainActivity.this,ActivityForm2.class);
                            startActivity(newActivity);
                            finish();

                            overridePendingTransition(R.layout.mainfadein,
                                    R.layout.mainfadeout);
                    }
                }, 1500);
                
        
            }
        });
        
	}

}

package com.myapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;

public class ActivityForm2 extends Activity  {
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_form2);
		
		// Button1
        final Button btn1 = (Button) findViewById(R.id.button1);
        // Perform action on click
        btn1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            	             	
            	// Open Form 3        	
                new Handler().postDelayed(new Runnable() {
                    public void run() {
                            Intent newActivity = new Intent(ActivityForm2.this,ActivityForm3.class);
                            startActivity(newActivity);
                            finish();

                            overridePendingTransition(R.layout.mainfadein,
                                    R.layout.mainfadeout);
                    }
                }, 1500);
        
            }
        });
	
	}
    
}

package com.myapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;

public class ActivityForm3 extends Activity  {
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_form3);
		
		// Button1
        final Button btn1 = (Button) findViewById(R.id.button1);
        // Perform action on click
        btn1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            	             	
              	// Back to Form 1
                new Handler().postDelayed(new Runnable() {
                    public void run() {
                            Intent newActivity = new Intent(ActivityForm3.this,MainActivity.class);
                            startActivity(newActivity);
                            finish();

                            overridePendingTransition(R.layout.mainfadein,
                                    R.layout.mainfadeout);
                    }
                }, 1500);
                
        
            }
        });
	
	}
    
}