How to set RadioGroup setValue() function in Ext JS?

I have a Radio group having radio buttons Male and Female. Please see below code

{
    xtype: 'radiogroup',
    fieldLabel: 'Gender',
    name: 'rbGender',
    defaults: {
        flex: 1
    },
    layout: 'hbox',
    items: [
        {
            boxLabel: 'Male',
            name: 'gender',
            inputValue: false,
            //checked: true,
            id: 'radio1'
        },
        {
            boxLabel: 'Female',
            name: 'gender',
            inputValue: true,
            id: 'radio2'
        }
    ]
}

I am unable to set these radio fields when I am getting values from database of gender field Male or Female(true/false).

please see below code.

 if (rec[0].gender == true) {
     me.form.getForm().findField('gender').setValue(true);
 }
 else if (rec[0].gender == false) {
     me.form.getForm().findField('gender').setValue(true);
 };

how to set male female radio button by database gender field value

You just pass an object, with the radio item name as the key and the value, like:

setValue({gender: true}) // will set the female as selected.

Working example: https://fiddle.sencha.com/#view/editor&fiddle/1o8c