message: Added prop enabled to picker for iOS
diff: @@ -96,6 +96,8 @@ class PickerNB extends Component {
  renderButton() {
  const onPress = () => {
  + if (this.props.enabled !== undefined && !this.props.enabled)
  + return;
  this._setModalVisible(true);
  };
  const text = this.state.currentLabel
  