iOS笔记

记录一些iOS开发路上碰到的大坑小坑。

2016.7.21

1. tabbar半透明效果

let tabBarAppearance = UITabBar.appearance()

tabBarAppearance.translucent = false

2. storyboard获取container view的controller

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

    if (segue.identifier == "UserDetailSegueSB") {

        tableVC = segue.destinationViewController as? UserDetailTableViewController

        tableVC?.tableView.delegate = self

        tableVC?.tableView.tableHeaderView = nil

    }

}

3. 隐藏table view Grouped布局中顶部多出的空白部分

tableView.tableHeaderView = UIView(frame: CGRectMake(0, 0, 0, 0.01))

4. 隐藏table view Plain布局中底部多余的Separator&&设置footer view背景颜色

func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {

    let sectionFooterView: UIView = UIView()

    sectionFooterView.backgroundColor = GrayBackgroundClor

    return sectionFooterView

}

或者

func tableView(tableView: UITableView, willDisplayFooterView view: UIView, forSection section: Int) {

     view.tintColor = UIColor.clearColor()

}

5. table cell失去焦点时取消高亮

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

    tableView.deselectRowAtIndexPath(indexPath, animated: false)

}

删除高亮效果

selectionStyle = .Gray

6. 删除table view Grouped布局中separator左边空白

tableView.separatorInset = UIEdgeInsetsZero

tableView.layoutMargins = UIEdgeInsetsZero

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

    let cell = UserDetailCell.cellFor(tableView)

    cell.titleLabel.text = "text"

    //        cell.separatorInset = UIEdgeInsetsZero

    //        cell.layoutMargins = UIEdgeInsetsZero

    return cell

}

7. UISearchBar圆角

searchBar.frame = CGRectMake(0, 0, ScreenWidth * 0.7, 30)

searchBar.backgroundImage = UIImage()

let searchTextField: UITextField = searchBar.valueForKey("searchField") as! UITextField

searchTextField.backgroundColor = UIColor.whiteColor()

searchTextField.layer.masksToBounds = true

searchTextField.layer.cornerRadius = 15

searchTextField.layer.borderColor = UIColor.whiteColor().CGColor

searchTextField.layer.borderWidth = 1

searchBar.barTintColor = UIColor.whiteColor()

searchBar.placeholder = "请输入商品名称"

searchBar.delegate = self

navigationItem.titleView = searchBar