Can't set OnCheckedChangeListener to a Checkbox

Question

I am trying to set a OnCheckedChangeListener to a CheckBox but my application exits in the run time. I also tried to set listeners for my Tex

Answer 1

Implement CheckBox Listener for your class this way, especially if you have more than one CheckBox to deal with, you can handle in switch case blocks and makes your code neater:

 public class MyClass extends AppCompatActivity implements
    CompoundButton.OnCheckedChangeListener,{

      CheckBox myCheckBox;
  }

In your onCreate() method put this:

    myCheckBox = (CheckBox)findViewById(R.Id.myCheckBoxName_in_XML_layout);
    mmyCheckBox.setOnCheckedChangeListener(this);

Listern for your checkbox view event like this:

  @Override
   public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

    switch (buttonView.getId()){
        case R.id.myCheckBoxName_in_XML_layout:

            if(isChecked == true) {
                Toast.makeText(this, "Checked", Toast.LENGTH_SHORT).show();
            } else{
                    Toast.makeText(this, "Unchecked", Toast.LENGTH_SHORT).show();
                   }

            break;
         }

      }