我把它放在cellForRowAtIndexPath
中let longPress = UILongPressGestureRecognizer(target: self, action: #selector(CalorieCountViewController.handleLongPress))
cell.addGestureRecognizer(longPress)
longPress.cancelsTouchesInView = true
let tapPress = UITapGestureRecognizer(target: self, action: #selector(CalorieCountViewController.handleTapPress))
cell.addGestureRecognizer(tapPress)
tapPress.cancelsTouchesInView = true
并将这些（下面的代码）放在它之外，并完全删除didSelectRowAtIndexPath函数，而是使用indexPathForSelectedRow来获取刚刚选择的行用户。
func handleLongPress(sender: UILongPressGestureRecognizer){
let index = tableView.indexPathForSelectedRow!
doSomething(index)
}
func handleTapPress(sender: UITapGestureRecognizer){
let index = tableView.indexPathForSelectedRow!
doSomethingElse(index)
}
结果是indexPathForSelectedRow返回nil，但我确实选择了一行，并且我的代码中没有“deselectRowAtIndexPath”。
答案 0 :(得分：12)
请勿将 app.controller('MainCtrl', ['$scope', 'filterFilter', 'ItemsService', function ($scope, filterFilter, ItemsService) {
$scope.items = ItemsService.get($scope.items)
$scope.addLink = function () {
$scope.errortext = "";
if (!$scope.newItem) {return;}
if ($scope.items.indexOf($scope.newItem) == -1) {
$scope.items.push($scope.newItem);
$scope.errortext = "Submitted";
$scope.items = ItemsService.put($scope.items)
} else {
$scope.errortext = "Link in the list";
}
};
$scope.removeItem = function(item) {
$scope.items.splice($scope.items.indexOf(item), 1);
$scope.items = ItemsService.put($scope.items)
$scope.resetFilters;
};
添加到UILongPressGestureRecognizer。将其添加到Cell
UITableView
viewDidLoad通过
获取触摸的单元格索引let longPress = UILongPressGestureRecognizer(target: self, action: #selector(CalorieCountViewController.handleLongPress))
yourTableView.addGestureRecognizer(longPress)
而不是func handleLongPress(sender: UILongPressGestureRecognizer){
if longPressGestureRecognizer.state == UIGestureRecognizerState.Began {
let touchPoint = longPressGestureRecognizer.locationInView(yourTableView)
if let indexPath = yourTableView.indexPathForRowAtPoint(touchPoint) {
// your code here, get the row for the indexPath or do whatever you want
}
}
}
使用UITapGestureRecognizer是一种更好的方法
答案 1 :(得分：2)
更新Swift4：
在您的viewController类的public FTPClient ftpConnect(){
FTPClient ftp = new FTPClient();
int retries=3;
int timeout=5000;
URL url;
try {
url = new URL(REMOTE_URL);
if(!url.getProtocol().equals("ftp"))
throw new MalformedURLException();
} catch (MalformedURLException e1) {
throw new SystemException("Invalid protocol");
}
ftp.setConnectTimeout(timeout);
ftp.setDataTimeout(timeout);
for (int i = 1; i <= retries; i++) {
try {
ftp.connect(url.getHost(),url.getPort()>0?url.getPort():21);
ftp.setSoTimeout(timeout);
ftp.enterLocalPassiveMode();
ftp.setKeepAlive(true);
int reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
throw new ConnectException("FTP server refused connection");
}
if(StringUtils.isNotBlank(url.getUserInfo())){
String[] arr=URLDecoder.decode(url.getUserInfo(), "UTF-8").split(":");
String user=arr[0];
String pass=arr.length>0?arr[1]:"";
if (!ftp.login(user,pass)) {
ftp.logout();
throw new SecurityException("FTP server login not valid");
}
}
ftp.changeWorkingDirectory(url.getPath());
break;
} catch (SocketException e ) {
log.error("Socket Error, retry nr {}",i);
if(i==retries) throw new SystemException("Socket error, max retries reached");
} catch (IOException e) {
throw new SystemException("Connection Error");
} catch (SecurityException e) {
throw new SystemException("Invalid authentication");
}
}
return ftp;
}
中添加这些行（在此示例中，类的名称为viewDidLoad）
YourViewController现在将此override func viewDidLoad() {
super.viewDidLoad()
let longPressRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(ViewController.longPress(longPressGestureRecognizer:)))
self.view.addGestureRecognizer(longPressRecognizer)
}
添加到您的viewController类中
func答案 2 :(得分：1)
基于Bala答案是快速4或5
override func viewDidLoad() {
super.viewDidLoad()
let longPress = UILongPressGestureRecognizer(target: self, action: #selector(longpress))
tableView.addGestureRecognizer(longPress)
}
这是方法
@objc func longPress(sender: UILongPressGestureRecognizer) {
if sender.state == UIGestureRecognizer.State.began {
let touchPoint = sender.location(in: tableView)
if let indexPath = tableView.indexPathForRow(at: touchPoint) {
// your code here, get the row for the indexPath or do whatever you want
print("Long press Pressed:)")
}
}
}