折腾：
［已解决］tableview中内嵌的UICollectionView中的UICollectionViewCell不显示
期间，如果去掉自动布局，
虽然界面乱，但是可以执行到：
collectionView的cellForItemAtIndexPath
界面是可以显示的
现在希望：
让UICollectionView和支持自动布局
swift UICollectionView autolayout
UICollectionView Tutorial Part 1: Getting Started
UICollectionViewFlowLayout autolayout
ios – Specifying one Dimension of Cells in UICollectionView using Auto Layout – Stack Overflow
blommegard/SBTableLayout: A customizable UICollectionViewLayout to use instead of UITableView
ios – Auto Layout in UICollectionViewCell not working – Stack Overflow
uicollectionview autolayout
uicollectionview – UICollectionViewCell dynamic height with autolayout – Stack Overflow
uicollectionview autolayout not call cellForItemAtIndexPath
autolayout uicollectionview not call cellForItemAtIndexPath
到最后，也还是没有实现：
当父视图，不制定collectionView的frame的时候，让CollectionView内部自动布局，适配父视图
而只能做到：
当设置CollectionView的时候，主动，事先的设置对应的宽和高
才能CollectionView内部才可以自动根据item的size，去布局。。。
目前用：
//
// OptionTableViewCell.swift
// SalesApp
//
// Created by licrifan on 16/5/26.
// Copyright © 2016年 licrifan. All rights reserved.
//
import UIKit
import Cartography
let OptionTableViewCellId:String = "OptionTableViewCellId"
let OptionSubViewPaddingX:CGFloat = 10
let OptionTitlePaddingTop:CGFloat = 15
let OptionTitleHeight:CGFloat = 30
let OptionOptionListHeight:CGFloat = 80
let OptionOptionListPaddingTop:CGFloat = 10
let OptionOptionListPaddingBottom:CGFloat = 15
let OptionCollectionViewCellId:String = "OptionCollectionViewCellId"
let OptionCellBackgroundColorNotSelected:UIColor = UIColor(hexString: "#F6F6F6")!
let OptionCellBackgroundColorSelected:UIColor = UIColor(hexString: "#D91479")!
let OptionCellItemLabelFont:UIFont = UIFont.systemFontOfSize(13)
let OptionCellItemLabelWidth:CGFloat = 60
let OptionCellItemLabelHeight:CGFloat = 30
let MainScreenWidth:CGFloat = UIScreen.mainScreen().bounds.width
let FilterCustomerTableViewWidth:CGFloat = MainScreenWidth * 0.8
let OptionCellInsets:UIEdgeInsets = UIEdgeInsetsMake(5, 5, 5, 5)
class OptionTableViewCell: UITableViewCell, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {
//class OptionTableViewCell: UITableViewCell, UICollectionViewDataSource, UICollectionViewDelegate {
var title:String
var optionList:[String]
var titleLabel:UILabel
var optionListCollectionView:UICollectionView
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
title = ""
optionList = [String]()
titleLabel = UILabel()
let collectionViewFrame:CGRect = CGRectMake(0, OptionTitleHeight, FilterCustomerTableViewWidth, OptionOptionListHeight)
//collection view layout
let flowLayout:UICollectionViewFlowLayout = UICollectionViewFlowLayout()
// flowLayout.scrollDirection = .Horizontal
flowLayout.scrollDirection = .Vertical
flowLayout.sectionInset = OptionCellInsets
flowLayout.minimumInteritemSpacing = 10
flowLayout.minimumLineSpacing = 5
//flowLayout.itemSize = CGSize(width: 60, height: OptionCellItemLabelHeight)
// flowLayout.itemSize = CGSize(width: 30, height: OptionCellItemLabelHeight)
optionListCollectionView = UICollectionView(frame: collectionViewFrame, collectionViewLayout: flowLayout)
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.selectionStyle = UITableViewCellSelectionStyle.None
self.imageView?.image = nil
self.imageView?.hidden = true
self.textLabel?.text = nil
self.textLabel?.hidden = true
self.detailTextLabel?.text = nil
self.detailTextLabel?.hidden = true
self.accessoryType = UITableViewCellAccessoryType.None
self.accessoryView = nil
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
convenience init(title:String, optionList:[String], reuseIdentifier:String?){
self.init(style: UITableViewCellStyle.Subtitle, reuseIdentifier:reuseIdentifier)
self.title = title
self.optionList = optionList
//1. title
self.titleLabel.text = self.title
self.titleLabel.font = UIFont.systemFontOfSize(17)
self.contentView.addSubview(self.titleLabel)
self.titleLabel.frame = CGRectMake(OptionSubViewPaddingX, 0, MainScreenWidth, OptionTitleHeight)
// constrain(self.titleLabel) {titleLabel in
// titleLabel.top == titleLabel.superview!.top + OptionTitlePaddingTop
// titleLabel.left == titleLabel.superview!.left + OptionSubViewPaddingX
// titleLabel.height == OptionTitleHeight
// }
// self.titleLabel.backgroundColor = UIColor.yellowColor()
//2. option list
self.optionListCollectionView.delegate = self
self.optionListCollectionView.dataSource = self
self.optionListCollectionView.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier: OptionCollectionViewCellId)
self.optionListCollectionView.backgroundColor = UIColor.clearColor()
// self.optionListCollectionView.backgroundColor = UIColor.greenColor()
self.contentView.addSubview(self.optionListCollectionView)
// constrain(self.optionListCollectionView, self.titleLabel) {optionListCollectionView, titleLabel in
// optionListCollectionView.top == titleLabel.bottom + OptionOptionListPaddingTop
// optionListCollectionView.left == titleLabel.left
// optionListCollectionView.right == optionListCollectionView.superview!.right – OptionSubViewPaddingX
// optionListCollectionView.bottom == optionListCollectionView.superview!.bottom – OptionOptionListPaddingBottom
// }
}
/*************************************************************************
* UICollectionViewDataSource Functions
*************************************************************************/
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return self.optionList.count
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
gLog.verbose("collectionView=\(collectionView), indexPath=\(indexPath)")
let cell = collectionView.dequeueReusableCellWithReuseIdentifier(OptionCollectionViewCellId, forIndexPath: indexPath)
cell.backgroundColor = OptionCellBackgroundColorNotSelected
cell.layer.cornerRadius = 12
cell.layer.borderWidth = 1
cell.layer.borderColor = UIColor.clearColor().CGColor
if indexPath.row < self.optionList.count {
let curOption = self.optionList[indexPath.row]
let curOptionLabel = UILabel()
curOptionLabel.text = curOption
curOptionLabel.font = OptionCellItemLabelFont
curOptionLabel.textAlignment = .Center
cell.contentView.addSubview(curOptionLabel)
constrain(curOptionLabel) {curOptionLabel in
// curOptionLabel.top == curOptionLabel.superview!.top + 5
// curOptionLabel.left == curOptionLabel.superview!.left + 5
// curOptionLabel.center == curOptionLabel.superview!.center
// curOptionLabel.right == curOptionLabel.superview!.right – 5
// curOptionLabel.bottom == curOptionLabel.superview!.bottom – 5
curOptionLabel.top == curOptionLabel.superview!.top
curOptionLabel.left == curOptionLabel.superview!.left
curOptionLabel.center == curOptionLabel.superview!.center
curOptionLabel.right == curOptionLabel.superview!.right
curOptionLabel.bottom == curOptionLabel.superview!.bottom
}
}
return cell
}
/*************************************************************************
* UICollectionViewDelegate Functions
*************************************************************************/
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
gLog.verbose("collectionView=\(collectionView), indexPath=\(indexPath)")
if let selectedCell = collectionView.cellForItemAtIndexPath(indexPath) {
selectedCell.backgroundColor = OptionCellBackgroundColorSelected
}
}
/*************************************************************************
* UICollectionViewDelegateFlowLayout Functions
*************************************************************************/
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
gLog.verbose("collectionView=\(collectionView), collectionViewLayout=\(collectionViewLayout), indexPath=\(indexPath)")
// let cellSize = CGSizeMake(OptionCellItemLabelWidth, OptionCellItemLabelHeight)
var cellSize = CGSizeMake(0, OptionCellItemLabelHeight)
let curOptionStr = self.optionList[indexPath.row]
let optionStrSize = calcLabelTextSize(curOptionStr, font: OptionCellItemLabelFont)
cellSize.width = (optionStrSize.width + OptionCellInsets.left + OptionCellInsets.right) * 1.1
gLog.verbose("optionStrSize=\(optionStrSize), cellSize=\(cellSize)")
return cellSize
}
}
效果是：
然后去经过一番调整，但是还是不够好：
－》
还是需要手动去设置item的大小，以及间距如何。。。
－》所以，干脆还是手动去画对应的不同点item，用button去画，自己计算宽度，高度，间距，行高等等，就好了。
抽空自己重新去画。。。
后来也没有自己去画
只是调整了frame大小，达到自己的效果：
但是最终还是无法实现CollectionView的自动布局。。
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