block传值

版权声明:iOS技术小牛 https://blog.csdn.net/weixin_42925415/article/details/84367905
//主页面
import UIKit

class TableVC: UITableViewController {
    
    var sectionName:[String] = []
    var rowName1:[String] = []
    var rowName2:[String] = []
    var rowName3:[String] = []
    var rowName4:[String] = []
    
    var cellNum:Int = 0
    
    override func viewDidLoad() {
        super.viewDidLoad()

        self.navigationItem.title = "周考成绩单"
        
        sectionName = ["小明","小红","张三","李四"]
    
        self.tableView.delegate = self
        self.tableView.dataSource = self
        
        self.tableView.tableFooterView = UIView()
        
        self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: "全部", style: .plain, target: self, action: #selector(whole))
    }
    
    @objc func whole() {
        
        if rowName1.count>0{
            print("小明:\(rowName1[0]),\(rowName1[1]),\(rowName1[2])")
        }
        if rowName2.count>0{
            print("小红:\(rowName2[0]),\(rowName2[1]),\(rowName2[2])")
        }
        if rowName3.count>0{
           print("张三:\(rowName3[0]),\(rowName3[1]),\(rowName3[2])")
        }
        if rowName4.count>0{
            print("李四:\(rowName4[0]),\(rowName4[1]),\(rowName4[2])")
        }
        
       
    }

    // MARK: - Table view data source

    override func numberOfSections(in tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return sectionName.count
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
    switch section {
        case 0:
            return rowName1.count
        case 1:
            return rowName2.count
        case 2:
            return rowName3.count
        case 3:
            return rowName4.count
        default:
            return 0
    }
    }

    
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        var cell:UITableViewCell! = tableView.dequeueReusableCell(withIdentifier: "cell")
        if cell==nil{
            
            cell = UITableViewCell(style: .default, reuseIdentifier: "cell")
        }
        // Configure the cell...
        
        switch indexPath.section {
        case 0:
            cell.textLabel?.text = rowName1[indexPath.row]
        case 1:
            cell.textLabel?.text = rowName2[indexPath.row]
        case 2:
            cell.textLabel?.text = rowName3[indexPath.row]
        case 3:
            cell.textLabel?.text = rowName4[indexPath.row]
        default:
            ""
        }
        
        return cell!
    }
    
//    override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//
//        return sectionName[section]
//    }
    
    override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        
        return 80
        
    }
    
    
    override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
        
        let view = UIView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
        view.backgroundColor = UIColor.lightGray
        
        let btn = UIButton(frame: CGRect(x:UIScreen.main.bounds.width-80-10, y: 10, width: 80, height: 30))
        btn.setTitle("录入分数", for: .normal)
        btn.addTarget(self, action: #selector(buton), for: .touchUpInside)
        btn.setTitleColor(UIColor.red, for: .normal)
        view.addSubview(btn)
        btn.tag = 100+section
        
        let label = UILabel(frame: CGRect(x: 10, y: 10, width: 60, height: 30))
        view.addSubview(label)
        label.text = sectionName[section]
        
        let lineView = UIView(frame: CGRect(x: 0, y: 49, width: UIScreen.main.bounds.width, height: 1))
        view.addSubview(lineView)
        lineView.backgroundColor = UIColor.black
        return view
    }
    
    override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        
        return 50
    }
    
    @objc func buton(but:UIButton){
        
        print(but.tag)
        
        let vc = ScoreWriteVC()
        vc.jumpScore = {
            
            (str1,str2,str3)->() in
            
            switch but.tag {
            case 100:
                self.rowName1.removeAll()
                self.rowName1.append("语文:\(str1)")
                self.rowName1.append("数学:\(str2)")
                self.rowName1.append("英语:\(str3)")
            case 101:
                self.rowName2.removeAll()
                self.rowName2.append("语文:\(str1)")
                self.rowName2.append("数学:\(str2)")
                self.rowName2.append("英语:\(str3)")
            case 102:
                self.rowName3.removeAll()
                self.rowName3.append("语文:\(str1)")
                self.rowName3.append("数学:\(str2)")
                self.rowName3.append("英语:\(str3)")
            case 103:
                self.rowName3.removeAll()
                self.rowName3.append("语文:\(str1)")
                self.rowName3.append("数学:\(str2)")
                self.rowName3.append("英语:\(str3)")
            default:
                ""
            }
            self.tableView.reloadData()
        }
        self.navigationController?.pushViewController(vc, animated: true)
    }

    /*
    // Override to support conditional editing of the table view.
    override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
        // Return false if you do not want the specified item to be editable.
        return true
    }
    */

    /*
    // Override to support editing the table view.
    override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
        if editingStyle == .delete {
            // Delete the row from the data source
            tableView.deleteRows(at: [indexPath], with: .fade)
        } else if editingStyle == .insert {
            // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
        }    
    }
    */

    /*
    // Override to support rearranging the table view.
    override func tableView(_ tableView: UITableView, moveRowAt fromIndexPath: IndexPath, to: IndexPath) {

    }
    */

    /*
    // Override to support conditional rearranging of the table view.
    override func tableView(_ tableView: UITableView, canMoveRowAt indexPath: IndexPath) -> Bool {
        // Return false if you do not want the item to be re-orderable.
        return true
    }
    */

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */


<----------------------------------------------------->
//第二页面
import UIKit

class ScoreWriteVC: UIViewController {

    typealias blockScore = (String,String,String)->()
    var jumpScore:blockScore?
    
    var tf1:UITextField!
    var tf2:UITextField!
    var tf3:UITextField!
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        
        self.navigationItem.title = "分数录入"
        
        view.backgroundColor = UIColor.white
        
        let lab1 = UILabel(frame: CGRect(x: 30, y: 200, width:60 , height: 60))
        view.addSubview(lab1)
        lab1.text = "语文"
        
        let lab2 = UILabel(frame: CGRect(x: 30, y: 200+lab1.frame.height+10, width:60 , height: 60))
        view.addSubview(lab2)
        lab2.text = "数学"
        
        let lab3 = UILabel(frame: CGRect(x: 30, y: 200+lab1.frame.height+10+lab2.frame.height+10, width:60 , height: 60))
        view.addSubview(lab3)
        lab3.text = "英语"
        
        tf1 = UITextField(frame: CGRect(x: 50+lab1.frame.width+5, y: 200, width: UIScreen.main.bounds.width-(50+lab1.frame.width+5)-10, height: 60))
        view.addSubview(tf1)
        tf1.placeholder = "请输入分数"
        tf1.borderStyle = .roundedRect
        
        tf2 = UITextField(frame: CGRect(x: 50+lab1.frame.width+5, y: 200+tf1.frame.height+10, width: UIScreen.main.bounds.width-(50+lab1.frame.width+5)-10, height: 60))
        view.addSubview(tf2)
        tf2.placeholder = "请输入分数"
        tf2.borderStyle = .roundedRect
        
        tf3 = UITextField(frame: CGRect(x: 50+lab1.frame.width+5, y: 200+tf1.frame.height+10+tf2.frame.height+10, width: UIScreen.main.bounds.width-(50+lab1.frame.width+5)-10, height: 60))
        view.addSubview(tf3)
        tf3.placeholder = "请输入分数"
        tf3.borderStyle = .roundedRect
        
        let btn1 = UIButton(frame: CGRect(x: (UIScreen.main.bounds.width-100)/2-60, y: 200+lab1.frame.height+10+lab2.frame.height+10+lab3.frame.height+30, width: 100, height: 80))
        view.addSubview(btn1)
        btn1.setTitle("保存", for: .normal)
        btn1.addTarget(self, action: #selector(save), for: .touchUpInside)
        btn1.setTitleColor(UIColor.red, for: .normal)
        
        let btn2 = UIButton(frame: CGRect(x: (UIScreen.main.bounds.width-100)/2+60, y: 200+lab1.frame.height+10+lab2.frame.height+10+lab3.frame.height+30, width: 100, height: 80))
        view.addSubview(btn2)
        btn2.setTitle("返回", for: .normal)
        btn2.addTarget(self, action: #selector(back), for: .touchUpInside)
        btn2.setTitleColor(UIColor.red, for: .normal)
    }
    
    @objc func save() {
        
        self.jumpScore!(tf1.text!,tf2.text!,tf3.text!)
        
        self.navigationController?.popViewController(animated: true)
    }
    
    @objc func back() {
        
        self.navigationController?.popViewController(animated: true)
    }
    
}

}

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转载自blog.csdn.net/weixin_42925415/article/details/84367905
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