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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| // | ||
| // TableViewController.swift | ||
| // ViewChaosDemo | ||
| // | ||
| // Created by Stan Hu on 2018/11/19. | ||
| // Copyright © 2018 Qfq. All rights reserved. | ||
| // | ||
|
|
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| import UIKit | ||
|
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| class TableViewController: UIViewController { | ||
|
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| let tb = UITableView() | ||
| var arrSource = [String]() | ||
| let word = "摄影小哥似乎看穿了我的心思，却不知道为什么用着佳能1D的大佬，极力向我推荐索尼，莫非是最近看到了姨夫的微笑？现在看来价格差距不算大的横向型号有大法A6000L，佳能M6和富士XA5。于是我在贴吧论坛开始转悠，基本的论调是大法性能优秀，佳能镜头便宜，富士直出色彩美丽。看完一圈以后，我又看了看小哥拍的照片，告诉自己，专业的人考虑专业的事情，我这样的小白不需要想太多，闭着眼睛买就对了（双11来了时间不多了！），于是赶上双11狗东不送赠品降价（我也用不着赠品，SD卡屯了好几张，相机包淘宝50买个mini的就好），就像快门声一样咔嚓一下，手就没了，不，是草就没了" | ||
| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
| view.tag = 111 | ||
| tb.frame = CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height) | ||
| tb.dataSource = self | ||
| tb.delegate = self | ||
| tb.register(UITableViewCell.self, forCellReuseIdentifier: "cell") | ||
| for _ in 0..<20{ | ||
| var start = Int(arc4random()) % word.count | ||
| var end = Int(arc4random()) % word.count | ||
| if start > end{ | ||
| (start,end) = (end,start) | ||
| } | ||
| else if start == end{ | ||
| start = 0 | ||
| } | ||
| arrSource.append(word.substring(from: start, to: end)) | ||
| } | ||
| tb.tableFooterView = UIView() | ||
| tb.separatorStyle = .singleLine | ||
| view.addSubview(tb) | ||
| // Do any additional setup after loading the view. | ||
| } | ||
|
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|
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|
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| } | ||
| extension TableViewController:UITableViewDataSource,UITableViewDelegate{ | ||
| func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { | ||
| return arrSource.count | ||
| } | ||
|
|
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| func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { | ||
| let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) | ||
| cell.textLabel?.text = arrSource[indexPath.row] | ||
| cell.textLabel?.numberOfLines = 0 | ||
| return cell | ||
| } | ||
|
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| func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { | ||
| let cell = tableView.cellForRow(at: indexPath) | ||
| print(cell!.textLabel!.frame) | ||
| if let fm = view.window?.convert(cell!.textLabel!.frame, from: cell!){ | ||
| print(fm) | ||
| } | ||
|
|
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| } | ||
|
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|
|
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| } | ||
|
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|
|
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| extension String{ | ||
| func substring(from: Int?, to: Int?) -> String { | ||
| if let start = from { | ||
| guard start < self.count else { | ||
| return "" | ||
| } | ||
| } | ||
|
|
||
| if let end = to { | ||
| guard end >= 0 else { | ||
| return "" | ||
| } | ||
| } | ||
|
|
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| if let start = from, let end = to { | ||
| guard end - start >= 0 else { | ||
| return "" | ||
| } | ||
| } | ||
|
|
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| let startIndex: String.Index | ||
| if let start = from, start >= 0 { | ||
| startIndex = self.index(self.startIndex, offsetBy: start) | ||
| } else { | ||
| startIndex = self.startIndex | ||
| } | ||
|
|
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| let endIndex: String.Index | ||
| if let end = to, end >= 0, end < self.count { | ||
| endIndex = self.index(self.startIndex, offsetBy: end + 1) | ||
| } else { | ||
| endIndex = self.endIndex | ||
| } | ||
|
|
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| return String(self[startIndex ..< endIndex]) | ||
| } | ||
|
|
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| func substring(from: Int) -> String { | ||
| return self.substring(from: from, to: nil) | ||
| } | ||
|
|
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| func substring(to: Int) -> String { | ||
| return self.substring(from: nil, to: to) | ||
| } | ||
|
|
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| func substring(from: Int?, length: Int) -> String { | ||
| guard length > 0 else { | ||
| return "" | ||
| } | ||
|
|
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| let end: Int | ||
| if let start = from, start > 0 { | ||
| end = start + length - 1 | ||
| } else { | ||
| end = length - 1 | ||
| } | ||
|
|
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| return self.substring(from: from, to: end) | ||
| } | ||
|
|
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| func substring(length: Int, to: Int?) -> String { | ||
| guard let end = to, end > 0, length > 0 else { | ||
| return "" | ||
| } | ||
|
|
||
| let start: Int | ||
| if let end = to, end - length > 0 { | ||
| start = end - length + 1 | ||
| } else { | ||
| start = 0 | ||
| } | ||
|
|
||
| return self.substring(from: start, to: to) | ||
| } | ||
| } |
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