ExpandableCell

Intoduction

Fully refactored YNExapnadableCell with more concise, bug free. Easiest usage of expandable & collapsible cell for iOS, written in Swift 5. You can customize expandable UITableViewCell whatever you like. ExpandableCell is made because insertRows and deleteRows is hard to use. Just inheirt ExpandableDelegate

Usage

Basic

import ExpandableCell

Make ExpandableTableView in Storyboard or in code

@IBOutlet var tableView: ExpandableTableView!

Inherit ExpandableDelegate

class ViewController: UIViewController, ExpandableDelegate 

Set delegate

tableView.expandableDelegate = self

Set required ExpandableDelegate method.

Key two methods

| Required ExpandableDelegate | Explanation | | --------------------------- | ----------- | | func expandableTableView(_ expandableTableView: ExpandableTableView, expandedCellsForRowAt indexPath: IndexPath) -> [UITableViewCell]? | Key method to get expandable cells | | func expandableTableView(_ expandableTableView: ExpandableTableView, heightsForExpandedRowAt indexPath: IndexPath) -> [CGFloat]? | Key method to get expandable cells's height |

| Required UITableViewDelegate, UITableViewDataSource | Explanation | | --------------------------------------------------- | ----------- | | func expandableTableView(_ expandableTableView: ExpandableTableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, numberOfRowsInSection section: Int) -> Int | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, heightForRowAt indexPath: IndexPath) -> CGFloat | - |

Advanced

ExpandableTableView property

| Property | Type | Explanation | | -------- | ---- | ----------- | | animation | UITableViewRowAnimation | Animation when open and close | | expansionStyle | ExpandableTableView.ExpansionStyle | Select expansion type:<br>single - one row at a time;<br>singlePerSection - one row at a time, per section;<br>multi - any number of rows at a time| | autoRemoveSelection | Bool | autoRemoveSelection true means the cell will flicker selected, and autoRemoveSelection false means the default selection behaviour of the tableview will apply (single or multi selection) |

ExpandableTableView methods

| Method | Explanation | | ------ | ----------- | | openAll | Open all that you set in func expandableTableView(_ expandableTableView: ExpandableTableView, expandedCellsForRowAt indexPath: IndexPath) -> [UITableViewCell]? | | closeAll | Close all that you set in func expandableTableView(_ expandableTableView: ExpandableTableView, expandedCellsForRowAt indexPath: IndexPath) -> [UITableViewCell]? | | reloadData | TableView reload data. Expanded cells will be work also | | open(at indexPath: IndexPath) | Open specific indexPath |

Optional delegates

| Optional ExpandableDelegate | Explanation | | --------------------------- | ----------- | | func expandableTableView(_ expandableTableView: ExpandableTableView, didSelectExpandedRowAt indexPath: IndexPath) | Get indexpath in expanded row | | func expandableTableView(_ expandableTableView: ExpandableTableView, expandedCell: UITableViewCell, didSelectExpandedRowAt indexPath: IndexPath) | Get expandedCell and indexPath |

| Optional UITableViewDelegate, UITableViewDataSource | Explanation | | --------------------------------------------------- | ----------- | | func expandableTableView(_ expandableTableView: ExpandableTableView, didSelectRowAt indexPath: IndexPath) | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, titleForHeaderInSection section: Int) -> String? | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, heightForHeaderInSection section: Int) -> CGFloat | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, viewForHeaderInSection section: Int) -> UIView? | - | | func numberOfSections(in expandableTableView: ExpandableTableView) -> Int | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, willDisplayHeaderView view: UIView, forSection section: Int) | - | | func expandableTableView(_ expandableTableView: ExpandableTableView, willDisplayFooterView view: UIView, forSection section: Int) | - |

For arrow effect

Inherit ExpandableCell when you need arrow effect or change arrow image

open class ExpandableCell: UITableViewCell {
    open var arrowImageView: UIImageView!
}

For highlight animation

Inherit ExpandableCell when you need disable or enable highlight animation

open class ExpandableCell: UITableViewCell {
    open var highlightAnimation = HighlightAnimation.animated
}

Adding right margin to arrow icon

Inherit ExpandableCell when you need right margin ( Default margin is 16 )

open class ExpandableCell: UITableViewCell {
    open var rightMargin: CGFloat = 16
}

Set tableview insert animation

tableView.animation = .automatic

Make protocols in ExpandableDelegate if you need or make pull request to me :)

ExpandableCell methods

| ExpandableCell methods | Explanation | | --------------------------- | ----------- | | isExpanded() | Check if cell is expanded or not | | isInitiallyExpanded() | Make cell be open when the tableView content first appears in the view | | isSelectable() | Make cell be selectable or not, regardless of tableView selectionStyle |

Requirements

ExpandableCell written in Swift 5.0. Compatible with iOS 8.0+

Installation

Cocoapods

ExpandableCell is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'ExpandableCell'

Carthage

github "younatics/ExpandableCell"

References

Please tell me or make pull request if you use this library in your application :)

Author

younatics <a href="http://twitter.com/younatics" target="_blank"><img alt="Twitter" src="https://img.shields.io/twitter/follow/younatics.svg?style=social&label=Follow"></a>

License

ExpandableCell is available under the MIT license. See the LICENSE file for more info.