SnapKit swift版的自動布局框架，第一次使用感覺還不錯。
GtiHub地址： https://github.com/SnapKit/SnapKit
1.uitableview高度自適應的關鍵代碼:
self.tableView.estimatedRowHeight=50//預估值隨意寫一個差不多的就可以
self.tableView.rowHeight=UITableViewAutomaticDimension
2.布局約束時一定要從上往下不然高度也無法適應
3.在最后一個view一定要添加與底部的一個約束： make.bottom.equalTo(-10)
以下是示例代碼
//
// TableViewCell.swift
// Test
// Copyright © 2017年 All rights reserved.
//
import UIKit
import SnapKit
class TableViewCell: UITableViewCell {
override func awakeFromNib() {
super.awakeFromNib()
//約束頭像
self.headImageView.backgroundColor=UIColor.red
self.addSubview(headImageView)
self.headImageView.snp.makeConstraints({make in
make.top.left.equalTo(10)
make.width.height.equalTo(40)
})
//約束用戶名
self.addSubview(nameLabel)
self.nameLabel.snp.makeConstraints({make in
make.top.equalTo(headImageView.snp.top)
make.left.equalTo(headImageView.snp.right).offset(5)
})
self.addSubview(timeLabel)
self.timeLabel.snp.makeConstraints({make in
make.left.equalTo(headImageView.snp.right).offset(5)
make.bottom.equalTo(headImageView.snp.bottom)
})
//約束文字內容
self.addSubview(contentLabel)
self.contentLabel.snp.makeConstraints({make in
make.top.equalTo(headImageView.snp.bottom).offset(5)
make.left.equalTo(headImageView.snp.left)
make.right.equalTo(-10)
})
//約束圖片
self.picView.dataSource=self
self.picView.delegate=self
// let nib = UINib.init(nibName: "CollectionViewCell", bundle: nil)
self.picView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "imgCell")
self.addSubview(picView)
self.picView.snp.makeConstraints({make in
make.top.equalTo(contentLabel.snp.bottom).offset(5)
make.height.equalTo(0)
make.left.equalTo(contentLabel.snp.left)
make.right.equalTo(-10)
})
//約束底部工具條
self.addSubview(bottomBar)
self.bottomBar.snp.makeConstraints({make in
make.top.equalTo(picView.snp.bottom).offset(5)
make.left.equalTo(10)
make.right.equalTo(-10)
make.height.equalTo(40)
make.bottom.equalTo(-10)//這句一定要放在最后一個view不然無法自動計算高度
})
}
//懶加載頭像
lazy private var headImageView:UIImageView={
let headImageView = UIImageView()
return headImageView
}()
//懶加載用戶名
lazy private var nameLabel:UILabel={
let nameLabel=UILabel()
return nameLabel
}()
//懶加載時間
lazy private var timeLabel:UILabel={
let timeLabel = UILabel()
timeLabel.font=UIFont.systemFont(ofSize: 14)
timeLabel.textColor=UIColor.darkGray
return timeLabel
}()
//懶加載文字內容
lazy private var contentLabel:UILabel={
let contentLabel = UILabel()
contentLabel.numberOfLines=0
return contentLabel
}()
//懶加載圖片容器
lazy private var picView:UICollectionView={
let picView=UICollectionView(frame:CGRect.zero,collectionViewLayout: UICollectionViewFlowLayout())
return picView
}()
//底部工條
lazy private var bottomBar:UIView={
let bottomBar=UIView()
bottomBar.backgroundColor=UIColor.cyan
return bottomBar
}()
var model:Model?{
didSet{
guard let model=model else {
return
}
self.nameLabel.text="用戶名"
self.timeLabel.text="時間"
self.contentLabel.text=model.text ?? ""
//這里更新圖片容器（注意:這里測試寫死的，開發中應根據圖片張數計算圖片容器高度）
self.picView.snp.updateConstraints({make in
make.height.equalTo(310)
})
}
}
}
extension TableViewCell:UICollectionViewDataSource,UICollectionViewDelegate,UICollectionViewDelegateFlowLayout{
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 9
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
return 5
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
return 0
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width:(UIScreen.main.bounds.size.width-30)/3,height:100)
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "imgCell", for: indexPath)
cell.backgroundColor=UIColor.orange
return cell
}
}
//
// TableViewController.swift
// Test
//
// Created by admin
// Copyright © 2017年 tdin360. All rights reserved.
//
import UIKit
class TableViewController: UITableViewController {
var datas = [Model]()
override func viewDidLoad() {
super.viewDidLoad()
datas.append(Model(text: "2016.01.18 -- 推出“普通簡化版”tableview的cell自動高度方法（推薦使用），原來的需2步設置的普通版方法將標記過期"))
datas.append(Model(text: "One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime."))
datas.append(Model(text: "One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime.One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime."))
datas.append(Model(text: "One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime.One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime.One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime."))
datas.append(Model(text: "One line of code to implement automatic layout. 一行代碼搞定自動布局！支持Cell和Tableview高度自適應，Label和ScrollView內容自適應，致力於做最簡單易用的AutoLayout庫。The most easy way for autoLayout. Based on runtime."))
//這兩句是實現高度自適應的關鍵代碼
self.tableView.estimatedRowHeight=50
self.tableView.rowHeight=UITableViewAutomaticDimension
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return datas.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
cell.model=datas[indexPath.row]
return cell
}
}
效果圖
