How To Attach A Listener To A Radio Button

I have an activity that displays various radiobuttons. The radiobuttons are grouped in radiogroups. I want some of the radiobutton to disappear when a certain radiobutton is checke

Solution 1:

try like this:-

RadioGroup group = (RadioGroup) findViewById(R.id.radioGroup1);

group.setOnCheckedChangeListener(new OnCheckedChangeListener() {

    @Override
    public void onCheckedChanged(RadioGroup group, int checkedId) 
       {
        // TODO Auto-generated method stub
        if(radiobutton1.isChecked()) {
             fall.setVisibility(View.GONE);
             trip.setVisibility(View.GONE);
             illness.setVisibility(View.GONE);
        } else if(radiobutton2.isChecked()) {

        }
     }
});

Solution 2:

You can set a listener on a RadioGroup with setOnCheckedChangeListener. The onCheckedChanged callback receives the ID of the newly checked button in the checkedId parameter.

In your case, just add an ID to your radio group (in order to retrieve it from your code)

<RadioGroup
    android:id="@+id/category_group"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal" >

And use the following code:

RadioGroup categoryGroup = (RadioGroup) findViewById(R.id.category_group);
categoryGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
    switch(checkedId) {
        case R.id.radioButtonincident:
            // 'Incident' checked
            fall.setVisibility(View.GONE);
            trip.setVisibility(View.GONE);
            illness.setVisibility(View.GONE);
            break;
        case R.id.radioButtonaccident:
            // 'Accident' checked
            break;
        case R.id.radioButtonconcern:
            // 'Concern' checked
            break;
        }
    }
});