Merge pull request #16 from thefuntasty/feature/platform-independent-height

Use double for platform independent cell sizes

Author: mkj-is

Example/Headers/PhonesHeaderModel.swift

@@ -17,7 +17,7 @@ struct PhonesHeaderModel {
 extension PhonesHeaderModel: SupplementaryViewModel, CellConvertible {
     typealias Cell = PhonesHeader
 
-    var height: CGFloat {
+    var height: Double {
         return 50
     }
 }

Sources/CellModel.swift

@@ -6,21 +6,17 @@
 //  Copyright © 2018 FUNTASTY Digital, s.r.o. All rights reserved.
 //
 
-import struct UIKit.CGFloat
-import class Foundation.Bundle
-import class UIKit.UINib
-
 public protocol CellModel: ReusableView {
-    var cellHeight: CGFloat { get }
+    var cellHeight: Double { get }
     var highlighting: Bool { get }
     var separatorIsHidden: Bool { get }
 
     func configure(cell: AnyObject)
 }
 
 public extension CellModel {
-    var cellHeight: CGFloat {
-        return 44
+    var cellHeight: Double {
+        return 44.0
     }
 
     var highlighting: Bool {
@@ -33,7 +29,7 @@ public extension CellModel {
 }
 
 public protocol SupplementaryViewModel: ReusableView {
-    var height: CGFloat { get }
+    var height: Double { get }
 
     func configure(cell: AnyObject)
 }

Sources/DataSource.swift

@@ -127,7 +127,8 @@ extension AbstractDataSource: UITableViewDataSource {
     }
 
     public func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
-        return header(in: section)?.height ?? CGFloat.leastNonzeroMagnitude
+        let height = header(in: section)?.height
+        return height.flatMap { CGFloat($0) }  ?? CGFloat.leastNonzeroMagnitude
     }
 
     public func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
@@ -138,7 +139,8 @@ extension AbstractDataSource: UITableViewDataSource {
     }
 
     public func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
-        return footer(in: section)?.height ?? CGFloat.leastNonzeroMagnitude
+        let height = footer(in: section)?.height
+        return height.flatMap { CGFloat($0) }  ?? CGFloat.leastNonzeroMagnitude
     }
 }
 
@@ -162,7 +164,7 @@ extension AbstractDataSource: UICollectionViewDataSource {
 
 extension AbstractDataSource: UITableViewDelegate {
     public func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
-        return cellModel(at: indexPath).cellHeight
+        return CGFloat(cellModel(at: indexPath).cellHeight)
     }
 
     public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {