Best way to implement View.OnClickListener in android

Question

Suppose we have an Activity with a lot of views on which OnClickListener is to be registered.

The most common way to implement this is to let the Activi

Answer 1

Here you can create a btnClickListner object and after that you will call that btnCLickLisner object when ever you want to perform the onCLieck actions for buttons..

Let us assume, in my activity i have a 5 to 10 buttons and writing each button separate onclick listner is bad idea. So to over come this,we can use like below..

register your buttons

Button button1 = (Button)findViewById(R.id.button1);
Button button2 = (Button)findViewById(R.id.button2);
Button button3 = (Button)findViewById(R.id.button3);
Button button4 = (Button)findViewById(R.id.button4);
Button button5 = (Button)findViewById(R.id.button5);

Here i am setting the onclick listner to my buttons after click

button1.setOnClickListener(btnClickListner);
button2.setOnClickListener(btnClickListner);
button3.setOnClickListener(btnClickListner);
button4.setOnClickListener(btnClickListner);
button5.setOnClickListener(btnClickListner);

Here is the btnClick Listner implementation

View.OnClickListener btnClickListner = new OnClickListener()
    {
  @Override
        public void onClick( View v )
        {
            // TODO Auto-generated method stub
            if( button1.getId() == v.getId() )
            {
                //Do Button1 click operations here

            }
            else if( button2.getId() == v.getId() )
            {

               // Do Button2 click operations here

            }
            else if( button3.getId() == v.getId() )
            {
                 // Do Button3 click operations here

            }
            else if( button4.getId() == v.getId() )
            {
                // Do Button4 click operations here

            }
            else if( button5.getId() == v.getId() )
            {
                // Do Button5 click operations here
            }

        }

     }