首次下拉时header显示的是未修改前的pulltorefresh，请问如何修改？

[Kevinsamer]

已按照demo设置了header的文字，但是首次下拉不改变 xcode9.1，ios11.1，模拟器iphoneX 使用的是v0.8.8 望解答

lazy var header: DefaultRefreshHeader = { let header = DefaultRefreshHeader.header() header.setText("下拉刷新", mode: .pullToRefresh) header.setText("释放刷新", mode: .releaseToRefresh) header.setText("数据刷新成功", mode: .refreshSuccess) header.setText("刷新中...", mode: .refreshing) header.setText("数据刷新失败，请检查网络设置", mode: .refreshFailure) header.tintColor = #colorLiteral(red: 0.9995891452, green: 0.6495086551, blue: 0.2688535452, alpha: 1) header.imageRenderingWithTintColor = true header.durationWhenHide = 0.4 return header }()