renderSheet() {
    const {
      renderTitle
    } = this.props;
    const {
      containerStyle
    } = this.props;
    return <View style={[styles.sheet, containerStyle]}>
        {_isFunction(renderTitle) ? renderTitle() : this.renderTitle()}
        <ScrollView>
            {this.renderActions()}
        </ScrollView>
      </View>;
  }