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Add Fast Scroll Feature Based on Speed Threshold #3

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Add Fast Scroll Feature Based on Speed Threshold #3

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10 changes: 10 additions & 0 deletions DankPod/Screens/HomeViewController.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ class HomeViewController: UIViewController, ClickWheelProtocol {
let tableView: UITableView = UITableView()
var vcs: [UIViewController] = [MusicViewController(), MusicViewController(), MusicViewController(), MusicViewController(), MusicViewController(), MusicViewController(), PlaybackViewController()]

var lastRotationTime = Date()
var counter: Int = 0
var hasSetupUI = false

Expand Down Expand Up @@ -55,15 +56,24 @@ class HomeViewController: UIViewController, ClickWheelProtocol {


func clickWheelDidRotate(rotationDirection: RotationDirection) {
let timeDiff = Date().timeIntervalSince(lastRotationTime)
let scrollSpeedThreshold = 0.1
lastRotationTime = Date()
if (rotationDirection == .CLOCKWISE) {
if (counter + 1 <= self.menuItems.count - 1) {
counter += 1
if (timeDiff < scrollSpeedThreshold && counter + 1 <= self.menuItems.count - 1) {
counter += 1
}
let ip = IndexPath(row: counter, section: 0)
tableView.selectRow(at: ip, animated: false, scrollPosition: .top)
}
} else {
if (counter > 0) {
counter -= 1
if (timeDiff < scrollSpeedThreshold && counter > 0) {
counter -= 1
}
let ip = IndexPath(row: counter, section: 0)
tableView.selectRow(at: ip, animated: false, scrollPosition: .top)
}
Expand Down