我有一个带有 JSON 数据的 TableView ，我可以在其中使用删除按钮操作抛出一个方法通过 JSON 删除 mysql 数据。但没有找到从单元格中删除的方法。
这是截图和代码
//Send user data to server side
@IBAction func deleteData(sender: AnyObject) {
let adduser = lblName.text
let id = store.storeId
//Send user data to server side
let myUrl = NSURL(string: "http://localhost/crud/delete.php");
let request = NSMutableURLRequest(URL:myUrl!);
request.HTTPMethod = "POST";
let postString = "id=\(id)";
request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding);
let task = NSURLSession.sharedSession().dataTaskWithRequest(request)
{
data, response, error in
if error != nil {
print("error=\(error)")
return
}
do{
let json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
if let parseJSON=json{
var resultValue = parseJSON["status"] as! String
print("result: \(resultValue)")
var isUserRegistered:Bool = false;
if(resultValue=="Success") {isUserRegistered = true; }
var messageToDisplay:String = parseJSON["status"] as! String
if(!isUserRegistered)
{
messageToDisplay = parseJSON["message"] as! String;
}
//self.store.storeName = self.lblName.text!
//store?.sName = txtName.text!
self.store.storeName = self.lblName.text!
dispatch_async(dispatch_get_main_queue(), {
// Display alert message with confirmation.
var myAlert = UIAlertController(title:"Alert", message:messageToDisplay, preferredStyle: UIAlertControllerStyle.Alert);
let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default) {action in
self.dismissViewControllerAnimated(true, completion:nil);
}
myAlert.addAction(okAction);
self.presentViewController(myAlert, animated: true, completion:nil);
});
}
}catch{print(error)}
}
task.resume()
}
表格 View Controller
class TableViewController: UITableViewController {
var storeList = [Store]()
//var storeList:Store?
override func viewDidLoad() {
super.viewDidLoad()
/*
if let s = storeList
{
txtName.text = s.storeName
}
*/
// Uncomment the following line to preserve selection between presentations
//self.clearsSelectionOnViewWillAppear = true
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
self.loadRecords()
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
tableView.reloadData() // to reload selected cell
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return storeList.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
//let cell = tableView.dequeueReusableCellWithIdentifier("reuseIdentifier", forIndexPath: indexPath)
// Configure the cell...
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! StoreTVC
let s = storeList[indexPath.row] as Store
cell.lblName.text = s.storeName
//cell.lblID.text = s.storeId
return cell
}
// for swipe delete
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == UITableViewCellEditingStyle.Delete {
storeList.removeAtIndex(indexPath.row)
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
}
}
/*
// Override to support conditional editing of the table view.
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return true
}
*/
/*
// Override to support editing the table view.
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == .Delete {
// Delete the row from the data source
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
} else if editingStyle == .Insert {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
override func tableView(tableView: UITableView, moveRowAtIndexPath fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) {
}
*/
/*
// Override to support conditional rearranging of the table view.
override func tableView(tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath) -> Bool {
// Return false if you do not want the item to be re-orderable.
return true
}
*/
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
/*
if segue.identifier == "details"
{
//if let indexPath = tableView.indexPathForCell(sender as! UITableViewCell)
if let indexPath = tableView.indexPathForSelectedRow
{
let s = storeList[indexPath.row] as Store
let dvc = segue.destinationViewController as! ViewDetails
dvc.store = s
}
}
*/
if let indexPath = tableView.indexPathForCell(sender as! UITableViewCell)
{
let s = storeList[indexPath.row] as Store
let dvc = segue.destinationViewController as! ViewDetails
dvc.store = s
}
}
func loadRecords()
{
//The address of the web service
let urlString = "http://localhost/crud/read_for_table_view.php"
// 1 - Create the session by getting the configuration and then crrating the session
let config = NSURLSessionConfiguration.defaultSessionConfiguration()
let session = NSURLSession(configuration: config, delegate: nil, delegateQueue: nil)
//2 - Create the URL Object
if let url = NSURL(string: urlString)
{
//3 - Create the request object
let request = NSURLRequest(URL: url)
//4 - execute the request
let taskData = session.dataTaskWithRequest(request, completionHandler: {
(data: NSData?, response:NSURLResponse?, error: NSError?) -> Void in
//5 - Do something with the Data back
if(data != nil)
{
//we got some data back
print("\(data)")
/*
var parseError:NSError?
let parsedStores = NSJSONSerialization.JSONObjectWithData(data, options: nil, error: &parseError) as! NSDictionary
*/
do {
if let parsedStores = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print("Json Data \n \(parsedStores)")
if let stores:AnyObject = parsedStores["result"]
{
self.parseJSON(stores)
}
}
} catch let error as NSError {
print(error.localizedDescription)
}
}else
{
//we got an error
print("Error getting stores :\(error!.localizedDescription)")
}
})
taskData.resume()
}
}
func parseJSON(jsonData:AnyObject)
{
if let storeData = jsonData as? [[NSObject:AnyObject]]
{
var store:Store
//we loop through all the recors and everytime we create
// an object of kind store and then add to the store list
for s in storeData
{
store = Store()
// this part is getting the values
if let sId:AnyObject = s["id"]
{
if let storeID = sId as? String
{
print("Store id = \(storeID)")
store.storeId = storeID
}
}
if let sn:AnyObject = s["name"]
{
if let storeName = sn as? String
{
store.storeName = storeName
}
}
storeList += [store]
}
NSOperationQueue.mainQueue().addOperationWithBlock()
{
self.tableView.reloadData()
}
}
}
}
有人可以帮忙吗？
最佳答案
从mysql中删除数据后，
1) 您必须按如下所示从 TableView 中删除单元格。
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Automatic)
在第一个参数中，您必须传递要删除哪些单元格的索引路径数组。
2) 或者你可以再次从数据库中获取数据并重新加载表..
//code for fetching data from database
self.tableView.reloadData()
关于ios - Swift uitableview json删除行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37675524/