Selectors using Buttons [closed]

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I am Having 2 images and single button. By clicking on the button images need to be loaded by using selectors?

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use this coding

button.setOnClickListener(new View.OnClickListener()  {            
    public void onClick(View v)  {          

        Drawable d1 = iv1.getDrawable();   
        Drawable d2 = iv2.getDrawable();   
        iv1.setImageDrawable(d2);
        iv2.setImageDrawable(d1);                            
    }                
  }
});