radiogroup的自增id

"ui";
engines.all().map((ScriptEngine) => {
  if (engines.myEngine().toString() !== ScriptEngine.toString()) {
    ScriptEngine.forceStop();
  }
});
ui.layout(
  <horizontal padding="10" bg="#00ff00">
    <radiogroup id="items">
      <radio text="选项1"></radio>
      <radio text="选项2"></radio>
      <radio text="选项3"></radio>
    </radiogroup>
  </horizontal>
);
ui.items.setOnCheckedChangeListener(function (radioGroup, id) {
  log(id);
});

ui.items.setOnCheckedChangeListener(function (radioGroup, id) {
  let view = ui.findView(id);
  log(view.getText().toString());
});