@H_502_0@// 实例化 let searchbar = UISearchBar(frame: CGRectMake(10.0,10.0,(CGRectGetWidth(self.view.frame) - 10.0 * 2),40.0)) self.view.addSubview(searchbar) searchbar.backgroundColor = UIColor.yellowColor() searchbar.barStyle = UIBarStyle.Default searchbar.barTintColor = UIColor.clearColor() searchbar.placeholder = "searchbar的使用" searchbar.tintColor = UIColor.redColor() searchbar.searchBarStyle = UISearchBarStyle.Minimal // 注意：showsBookmarkButton、showsSearchResultsButton不能同时设置 searchbar.showsCancelButton = true searchbar.showsBookmarkButton = true // searchbar.showsSearchResultsButton = true searchbar.delegate = self // 键盘类型设置 searchbar.keyboardType = UIKeyboardType.EmailAddress searchbar.returnKeyType = UIReturnKeyType.Done searchbar.secureTextEntry = false // 输入源设置（与textfiele、或textview类似） // searchbar.inputAccessoryView = nil // searchbar.inputView = nil // 第一响应，即进入编辑状态 searchbar.becomeFirstResponder() // 放弃第一响应，即结束编辑 // searchbar.resignFirstResponder() // searchbar.endEditing(true) // 结束编辑

// 添加协议
class ViewController: UIViewController,UISearchBarDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()
      ....
     }
}

// 实现代理方法
// MARK: - UISearchBarDelegate
    
func searchBarShouldBeginEditing(searchBar: UISearchBar) -> Bool  {
        print("1 searchBarShouldBeginEditing")

        return true
}
    
func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
        print("2 searchBarTextDidBeginEditing")
}
    
func searchBar(searchBar: UISearchBar,textDidChange searchText: String) {
        print("3 searchBar")
        
        print("3 text=\(searchBar.text),string=\(searchText)")
}
    
func searchBar(searchBar: UISearchBar,shouldChangeTextInRange range: NSRange,replacementText text: String) -> Bool {
        print("4 searchBar")
        
        print("4 text=\(searchBar.text),range=\(range),string=\(text)")
        
        return true
}
    
func searchBarShouldEndEditing(searchBar: UISearchBar) -> Bool
{
        print("5 searchBarShouldEndEditing")
  
        return true
}
    
func searchBarTextDidEndEditing(searchBar: UISearchBar) {
        print("6 searchBarTextDidEndEditing")
}
    
func searchBarSearchButtonClicked(searchBar: UISearchBar) {
        print("7 searchBarSearchButtonClicked")
        
        searchBar.endEditing(true)
}
    
func searchBarBookmarkButtonClicked(searchBar: UISearchBar) {
        print("8 searchBarBookmarkButtonClicked")
        
        searchBar.endEditing(true)
}
    
func searchBarCancelButtonClicked(searchBar: UISearchBar) {
        print("9 searchBarCancelButtonClicked")
        
        searchBar.endEditing(true)
}
    
func searchBarResultsListButtonClicked(searchBar: UISearchBar) {
        print("10 searchBarResultsListButtonClicked")
        
        searchBar.endEditing(true)
}
    
func searchBar(searchBar: UISearchBar,selectedScopeButtonIndexDidChange selectedScope: Int) {
        print("11 searchBar")
}