Swift 清新的单元格折叠动画类及演示 - FoldingCell
FoldingCell
Requirements
- iOS 8.0+
- Xcode 7.2
Installation
Just add the FoldingCell.swift file to your project.
or use CocoaPods with Podfile:
pod 'FoldingCell', '~> 0.3' Solution
Usage
1) Create a new cell inheriting from FoldingCell
2) Add a UIView to your cell in your storyboard or nib file, inheriting from RotatedView. Connect the outlet from this view to the cell property foregroundView. Add constraints from this view to the superview, as in this picture: 
(constants of constraints may be different). Add the identifier ForegroundViewTop for the top constraint. (This view will be shown when the cell is in its normal state).
3) Add other UIViews to your cell, connect the outlet from this view to the cell property containerView. Add constraints from this view to the superview like in the picture:
(constants of constraints may be different). Add the identifier "ContainerViewTop" for the top constraint. (This view will be shown when the cell is opened)
Your result should be something like this picture: 
4) Set @IBInspectable var itemCount: NSInteger property is a count of folding (it IBInspectable you can set in storyborad). range 2 or greater. Default value is 2
Ok, we've finished configuring the cell.
5) Adding code to your UITableViewController
5.1) Add constants:
let kCloseCellHeight: CGFloat = *** // equal or greater foregroundView height let kOpenCellHeight: CGFloat = *** // equal or greater containerView height 5.2) Add property
var cellHeights = [CGFloat]() create in viewDidLoad:
override func viewDidLoad() { super.viewDidLoad() for _ in 0...kRowsCount { cellHeights.append(kCloseCellHeight) } } 5.3) Override method:
override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { return cellHeights[indexPath.row] } 5.4) Added code to method:
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) { let cell = tableView.cellForRowAtIndexPath(indexPath) as! FoldingCell var duration = 0.0 if cellHeights[indexPath.row] == kCloseCellHeight { // open cell cellHeights[indexPath.row] = kOpenCellHeight cell.selectedAnimation(true, animated: true, completion: nil) duration = 0.5 } else {// close cell cellHeights[indexPath.row] = kCloseCellHeight cell.selectedAnimation(false, animated: true, completion: nil) duration = 1.1 } UIView.animateWithDuration(duration, delay: 0, options: .CurveEaseOut, animations: { () -> Void in tableView.beginUpdates() tableView.endUpdates() }, completion: nil) } 5.5) Control if the cell is open or closed
override func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) { if cell is FoldingCell { let foldingCell = cell as! FoldingCell if cellHeights![indexPath.row] == kCloseCellHeight { foldingCell.selectedAnimation(false, animated: false, completion:nil) } else { foldingCell.selectedAnimation(true, animated: false, completion: nil) } } } 6) Add this code to your new cell class
override func animationDuration(itemIndex:NSInteger, type:AnimationType)-> NSTimeInterval { // durations count equal it itemCount let durations = [0.33, 0.26, 0.26] // timing animation for each view return durations[itemIndex] } Licence
Adaptive tab bar is released under the MIT license. See LICENSE for details.
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The project maintained by app development agency Ramotion Inc. See our other open-source projects or hire us to design, develop, and grow your product.
