Setting Up A Radiogroup Programmatically

I'd like to create a custom View which contains a RadioGroup. Inside of the RadioGroup I'd like the RadioButtons to be set up so that the first RadioButton is at the top left, the

Solution 1:

Try processing the RadioButtons without the use of RadioGroup.

Wire-up the individual RadioButtons and hold them in an ArrayList<RadioButton>.

List<RadioButton> radioButtons = new ArrayList<RadioButton>();

radioButtons.add( (RadioButton)findViewById(R.id.button1) );        
radioButtons.add( (RadioButton)findViewById(R.id.button2) );
radioButtons.add( (RadioButton)findViewById(R.id.button3) );
etc.

Set an OnCheckedChangeListener for each RadioButton.

for (RadioButton button : radioButtons){

    button.setOnCheckedChangeListener(new OnCheckedChangeListener(){
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if (isChecked) processRadioButtonClick(buttonView);
        }   
    });

}

Then create a method to uncheck the unselected RadioButtons.

private void processRadioButtonClick(CompoundButton buttonView){

    for (RadioButton button : radioButtons){

        if (button != buttonView ) button.setChecked(false);
    }

}

Using this approach, the RadioButtons can be located anywhere within the XML layout.

Solution 2:

You should subclass from RadioGroup and override onLayout() method.