nibelungc / ios-scrollbar

Fast scrolling like in Google Photos App

ios-ScrollBar

ScrollBar it is the fast way to scroll through the scroll views, for example table view or collection view. And it has a small hint view with a text.

Installation

Just copy the ios-ScrollBar/ScrollBar.swift source file to your project. Or contact me if you want to install it through CocoaPods or Carthage, I'll make it happen :) Just open an issue.

Usage

• Create an instance passing a scroll view. ScrollBar retains the scroll view, but don't worry until you don't passing self in the init :)

self.scrollBar = ScrollBar(scrollView: tableView)
scrollBar.dataSource = self

• Add conformance of ScrollBarDataSource to your dataSource. All methods are optional and have default implementation, so you can easily check it out in action

/// A control view which you drag to scroll. Default is simple grey circle
func view(for scrollBar: ScrollBar) -> UIView
/// Distance between the control view and the right screen edge. Default 30pt
func rightOffset(for scrollBarView: UIView, for scrollBar: ScrollBar) -> CGFloat
/// Position of the hint view by X coordinate. Default is the middle of the scroll view's bounds
func hintViewCenterXCoordinate(for scrollBar: ScrollBar) -> CGFloat
/// A text describing current point in the scroll view. If `nil` the hint view is hidden
func textForHintView(_ hintView: UIView, at point: CGPoint, for scrollBar: ScrollBar) -> String?

Example

You can try to scroll in the demo project ios-ScrollBar.xcodeproj

Requirements

Swift 4.2 iOS 10.3+