我正试图在我的collectionView中随机添加一些横幅广告.
每个collectionView单元格都是一个基本图像(这里的黑色正方形使事情变得更容易)从数组中动态填充(假设它是一个非常长的数组,并称之为“longDataArray”),我将从网上获取.
我可以设法在我的collectionView中添加一些横幅广告,但问题是它违反了我的longDataArray的顺序.
例如,仅在我在indexPath 6添加广告横幅时进行测试,然后广告横幅正确地显示在indexPath 6上,我能够管理单元格的宽度更改,但是在indexPath处对应的图像6我的longDataArray显然永远不会出现.
我也可以把我的longDataArray分成两部分,然后玩这些部分：section 0 = firstPartOfArray,section 1 = ad banner,section 2 = secondPartOfArray.但是这需要花费很多精力创建不同的数组和部分,只需要添加一个广告横幅,而这显然不是我想要的.
所以我的问题是,你如何在collectionView中添加横幅广告(只有一个部分),但保留indexPath逻辑？
我搜索了很多关于这一点,并且惊讶于我无法为这个问题找到任何解决方案.
你们有什么想法吗？
谢谢！
解决方法
您好我已经在表格单元格内创建了一个具有相同要求的collectionView,您可以检查我的代码.
//
// ViewController.swift
// DemoApp
//
// Created by Mahesh Kumar on 09/01/18.
// Copyright © 2018 Mahesh Kumar. All rights reserved.
import UIKit
class TableCell : UITableViewCell{
@IBOutlet weak var collVw: UICollectionView!
@IBOutlet weak var categoryName: UILabel!
}
class ViewController: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout,UITableViewDelegate,UITableViewDataSource {
var categories_array = ["Home","Helth","New","Home1","Home2","Home3","Home4","Home5","Home6","Home7","Home8","Home9","Home11","Home12","Home13","Home14","Home15"]
//Mark
var sectionArray = NSMutableArray()
@IBOutlet weak var tableVw: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
//Mark
var sectionCount = 0
var mainIndex = 0
let section = categories_array.count % 4
if(section == 0){
sectionCount = categories_array.count/4
}
else{
sectionCount = categories_array.count/4 + 1
}
//Mark
for _ in 0...sectionCount {
let rowsData = NSMutableArray()
var j = 0
while j<4{
if(mainIndex == categories_array.count){
break
}
rowsData.add(categories_array[mainIndex])
j = j + 1
mainIndex = mainIndex + 1
}
sectionArray.add(rowsData)
}
tableVw.reloadData()
// Do any additional setup after loading the view,typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
return 3
}
func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableVw.dequeueReusableCell(withIdentifier: "cell1",for: indexPath) as? TableCell
if(indexPath.row == 1){
cell?.categoryName.text = "Top Redeemed"
}
else if(indexPath.row == 2){
cell?.categoryName.text = "Categories"
}
cell?.collVw.tag = indexPath.row
cell?.collVw.delegate = self
cell?.collVw.dataSource = self
cell?.collVw.reloadData()
return cell!
}
func tableView(_ tableView: UITableView,heightForRowAt indexPath: IndexPath) -> CGFloat {
return 400
}
func numberOfSections(in collectionView: UICollectionView) -> Int {
if(collectionView.tag == 0){
return 1
}
else if(collectionView.tag == 1){
if(categories_array.count > 4){
if(categories_array.count % 4 == 0){
return categories_array.count/4
}
else{
return (categories_array.count/4) + 1
}
}
else{
return 1
}
}
else{
return 10
}
}
func collectionView(_ collectionView: UICollectionView,cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell",for: indexPath)
cell.backgroundColor = UIColor.green
if let lbl = cell.viewWithTag(1) as? UILabel{
lbl.text = "\(indexPath.row)"
}
return cell
}
func collectionView(_ collectionView: UICollectionView,layout collectionViewLayout: UICollectionViewLayout,sizeForItemAt indexPath: IndexPath) -> CGSize
{
if(collectionView.tag == 0){
return CGSize.init(width: collectionView.frame.width - 10,height: collectionView.frame.height)
}
else if(collectionView.tag == 1){
return CGSize.init(width: (collectionView.frame.width)/2 - 5.5,height: collectionView.frame.height/2 - 0.5)
}
else {
return CGSize.init(width: collectionView.frame.width/3 - 4,height: collectionView.frame.height/2 - 0.5)
}
}
func collectionView(_ collectionView: UICollectionView,minimumLineSpacingForSectionAt section: Int) -> CGFloat {
if(collectionView.tag == 0){
return 10
}
else{
return 1
}
}
func collectionView(_ collectionView: UICollectionView,insetForSectionAt section: Int) -> UIEdgeInsets
{
return UIEdgeInsets(top: 0,left: 5,bottom: 0,right: 5)
}
func collectionView(_ collectionView: UICollectionView,numberOfItemsInSection section: Int) -> Int {
if(collectionView.tag == 0){
return 10
}
else if(collectionView.tag == 1){
return ((sectionArray[section] as? NSMutableArray)?.count)!
}
else{
return 6
}
}
func collectionView(_ collectionView: UICollectionView,didSelectItemAt indexPath: IndexPath) {
print("coll vw",indexPath.row)
print(indexPath.section)
//Mark
if(collectionView.tag == 1){
print(collectionView.tag)
let array = sectionArray[indexPath.section] as? NSMutableArray
print(array![indexPath.row])
}
}
}
