CODEWITHSUNDEEP
androideventscheckbox
Annerajb
Annerajb

Reputation: 932

How to receive a event on android checkbox check change?

What would be the correct way of receiving and sending an event when a check box gets enabled or disabled?

In C# I could just easily double click and all the code would be done for me. But in android it appears to be a bit more obscure. I thought of using the touch event handlers but then if the user has a keyboard it won't detect the change since it's not touch. I figure android should have a native event for check box state change.

Upvotes: 63

Views: 100694

Answers (4)

MSpeed
MSpeed

Reputation: 8280

In Kotlin:

   checkBoxView.setOnCheckedChangeListener { _, isChecked ->
        print("checked: $isChecked")
    }

Upvotes: 5

Sunil
Sunil

Reputation: 3793

Try this

CheckBox checkbox=(CheckBox)findViewById(R.id.checkbox);
checkbox.setOnClickListener(new View.OnClickListener()
{
        @Override
        public void onClick(View v)
        {
            if (checkbox.isChecked())
            {
             //Perform action when you touch on checkbox and it change to selected state
            }
            else
            {
   //Perform action when you touch on checkbox and it change to unselected state
            }
        }
    });

Upvotes: 1

Phileo99
Phileo99

Reputation: 5659

Since CheckBox (eventually) extends View, you can use a standard OnClickListener to detect when the CheckBox is actually tapped by the user (as opposed to the ListView updates):

CheckBox repeatChkBx = ( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

        if ( ((CheckBox)v).isChecked() ) {
            // perform logic
        }
    }
});

Upvotes: 8

Cristian
Cristian

Reputation: 200080

CheckBox repeatChkBx = ( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
    {
        if ( isChecked )
        {
            // perform logic
        }

    }
});

Upvotes: 165

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