Insert ImageView dynamically using Java code

Here demonstrate how to create and add ImageView in LinearLayout (inside HorizontalScrollView/ScrollView) dynamically using Java code.

package com.example.androidinsertimages;
 
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
 
public class MainActivity extends Activity {
  
 Button addinHorizontalScrollView, addinScrollView;
 LinearLayout inHorizontalScrollView, inScrollView;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         
        inHorizontalScrollView = (LinearLayout)findViewById(R.id.inhorizontalscrollview);
        inScrollView = (LinearLayout)findViewById(R.id.inscrollview);
         
        addinHorizontalScrollView = (Button)findViewById(R.id.addinhorizontalscrollview);
        addinHorizontalScrollView.setOnClickListener(new OnClickListener(){
 
   @Override
   public void onClick(View arg0) {
    addImageView(inHorizontalScrollView);
   }});
         
        addinScrollView = (Button)findViewById(R.id.addinscrollview);
        addinScrollView.setOnClickListener(new OnClickListener(){
 
   @Override
   public void onClick(View arg0) {
    addImageView(inScrollView);
   }});
         
    }
     
    private void addImageView(LinearLayout layout){
     ImageView imageView = new ImageView(this);
     imageView.setImageResource(R.drawable.ic_launcher);
     layout.addView(imageView);
    }
 
}

xml code: