我使用的是单个ViewController和一个关联的NIB，没有故事板。我准备把头发拉出来了。
注意在聚焦后的视频中，在左上角可以看到一小部分字段，只有在点击UITableView上方的阴影区域后才能完全消失。进入视图层次结构时，它显示searchBar正在移出其原始的层级位置。
Screenshot of the NIB, showing the structure of the tableHeaderView
import UIKit
class ViewController: UIViewController, UITableViewDataSource,
UITableViewDelegate, UISearchDisplayDelegate, UISearchBarDelegate {
@IBOutlet weak var bigLabel: UILabel!
@IBOutlet weak var buttonGroupSegment: UISegmentedControl!
@IBOutlet var tableViewHeader: UIView!
@IBOutlet weak var tableView: UITableView!
@IBOutlet var searchBar: UISearchBar!
// MARK: VIEW CONTROLLER
override init() {
super.init(nibName: "ViewController", bundle: nil)
}
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.initTableView();
}
override func viewDidLoad() {
super.viewDidLoad();
self.initLabelStyling();
// 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.
}
// MARK: TABLE VIEW HEADER
func initTableViewHeader() -> Void{
self.tableView.tableHeaderView = self.tableViewHeader;
self.initSearchView();
self.initSegmentedControl();
}
// MARK: THE SEGMENTED CONTROL
func initSegmentedControl() -> Void{
let font = UIFont(name: "HelveticaNeue", size: 10);
let color = UIColor.whiteColor();
let lighterColor = color.colorWithAlphaComponent(0.5);
self.buttonGroupSegment.tintColor = UIColor.clearColor();
self.buttonGroupSegment.setTitleTextAttributes([NSForegroundColorAttributeName : lighterColor, NSFontAttributeName: font!, NSKernAttributeName: 0.7], forState: UIControlState.Normal)
self.buttonGroupSegment.setTitleTextAttributes([NSForegroundColorAttributeName : color, NSFontAttributeName: font!], forState: UIControlState.Selected);
// Change the case of all the titles
let c = self.buttonGroupSegment.subviews.count;
for i in 0..<c{
if let title = self.buttonGroupSegment.titleForSegmentAtIndex(i){
self.buttonGroupSegment.setTitle(title.uppercaseString, forSegmentAtIndex: i);
}
}
}
// MARK: SEARCH VIEW
func initSearchView() -> Void{
let searchBar = self.searchDisplayController!.searchBar;
searchBar.backgroundColor = UIColor.clearColor();
searchBar.backgroundImage = UIImage();
searchBar.barTintColor = UIColor.clearColor();
searchBar.tintColor = UIColor.whiteColor()
let numViews = searchBar.subviews[0].subviews.count;
var searchField: UITextField?
for i in 0..<numViews{
if searchBar.subviews[0].subviews[i].isKindOfClass(UITextField.self) {
searchField = searchBar.subviews[0].subviews[i] as? UITextField;
}
}
if searchField != nil{
// Fonts and colors
let font = UIFont(name: "HelveticaNeue", size: 12);
let textColor = UIColor.whiteColor();
searchField!.font = font;
searchField!.textColor = textColor;
if searchField!.respondsToSelector("setAttributedPlaceholder:"){
if let placeholder = searchField!.placeholder{
let placeHolderColor = UIColor(red: 100, green: 100, blue: 100, alpha: 0.5);
let attributedPlaceholder = NSAttributedString(string: placeholder, attributes: [NSForegroundColorAttributeName : placeHolderColor, NSFontAttributeName: font!]);
searchField!.attributedPlaceholder = attributedPlaceholder;
}
}
searchField!.backgroundColor = UIColor(red: 100, green: 100, blue: 100, alpha: 0.2);
var searchIcon: UIImageView? = searchField?.leftView as? UIImageView;
searchIcon!.image = searchIcon!.image?.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
searchIcon?.tintColor = UIColor.whiteColor();
var clearIcon: UIImageView? = searchField?.rightView as? UIImageView;
if clearIcon != nil{
clearIcon!.image = clearIcon!.image!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)
clearIcon!.tintColor = UIColor.whiteColor();
}
}
}
// MARK: THE SEARCH VIEW DELEGATE METHODS
func searchDisplayControllerWillBeginSearch(controller: UISearchDisplayController) {
}
func searchDisplayController(controller: UISearchDisplayController, shouldReloadTableForSearchString searchString: String!) -> Bool {
self.filterContentForSearchText(searchString, scope:"");
return true;
}
func filterContentForSearchText(searchText: NSString, scope: String) -> Void{
self.dataFiltered = self.data.filter({(pet: String) -> Bool in
let stringMatch = pet.rangeOfString(searchText)
return stringMatch != nil;
})
}
// MARK: TABLE VIEW
let data = ["Cat","Dog","Bird","Fish","Ferret","Rat","Hamster","Chicken","Goat","Pig","Donkey","Monkey", "Rabbit", "Fox", "Snake", "Frog", "Spider","Rooster","Aligator","Pocupine","Squirrel","Duck","Turtle","Lizard","Lama"];
var dataFiltered: [String] = [];
let cellClass: String = "Cell";
func initTableView() -> Void{
self.initTableViewHeader();
self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: self.cellClass);
// MARK: TABLE VIEW DELEGATES AND DATA SOURCE METHODS
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int{
if tableView == self.searchDisplayController!.searchResultsTableView{
return self.dataFiltered.count
}else{
return self.data.count;
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
var cell: UITableViewCell?
cell = self.tableView.dequeueReusableCellWithIdentifier(cellClass) as? UITableViewCell;
if (cell == nil){
cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: self.cellClass)
}
if tableView == self.searchDisplayController!.searchResultsTableView{
cell?.textLabel?.text = self.dataFiltered[indexPath.row]
}else{
cell?.textLabel?.text = self.data[indexPath.row];
}
return cell!;
}
// MARK: STYLE THE LABEL (ADD A LINE)
func initLabelStyling()->Void{
let v = UIView(frame: CGRectMake(0, 0, self.bigLabel.frame.width, 1));
v.backgroundColor = UIColor(red: 100, green: 100, blue: 100, alpha: 0.2);
self.bigLabel.addSubview(v)
}
}
答案 0 :(得分：0)
这已经解决了吗？我知道这与导航控制器中的导航栏被覆盖在搜索栏顶部有关。如果您在iPhone 6的模拟器中运行它，然后将其转为横向，您可以在导航栏下看到搜索栏。如果我有解决方案，我会报告回来！
编辑：我们去了，明白了！
我添加了下面的内容（setNavigationBarHidden），它可能是一个更好的地方，但因为我只是原型，现在可以做：
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if self.searchDisplayController!.active {
self.navigationController?.setNavigationBarHidden(true, animated: true)
return self.filteredPlayers.count
} else {
return self.selectedPlayers.count
}
}
...
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if self.searchDisplayController!.active {
self.selectedPlayers.append(self.filteredPlayers[indexPath.row])
self.navigationController?.setNavigationBarHidden(false, animated: true)
self.searchDisplayController!.setActive(false, animated: true)
self.tableView.reloadData()
}
}