I have a settings page and I am unsure as to how to make the Log out work. I have been told to use CellForRowAtIndexPath to make it so when I click "Log out" I can set it to actually logout using PFUser.logout()
Im sure this is a simple answer but I could not find anything remotely close to what I was looking for, does anybody have a quick solution? Thank you so much in advance.
You need to use the didSelectRowAtIndexPath method in the UITableViewDelegate protocol that tells the delegate that the specified row is now selected to handle the cell selected in the UITableView like in this way:
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
// call to the PFUser.logout() here to log out the user properly
print(indexPath.row)
}
I hope this help you.
Related
I have a UITableView with cells that I want the user to be able to reorder by dragging them up & down, using the "handles" on the right side of each cell. I do NOT want to implement "drag & drop" functionality, because the data behind these cells makes no sense outside of this table (and implementing NSItemProvider looks to be an ugly process, given the data behind the table view & its cells). So far, everything is implemented & works fine. Looks somewhat like the results of this article.
The next step is, I'd like to know when the user has "lifted" or started to move a cell -- similar to the dragStateDidChange ability when one IS using drag & drop. I want to get this notification even before the cell has been moved out of its place -- as the UI turns the cell background white & "raises" it above the table.
How can I get this notification, without implementing "drag & drop"?
Things I've tried that don't accomplish what I want:
Recognizing a long-press gesture: I do use Gesture Recognizers on these cells for taps & such; it seems that when the user touches the drag handles to reorder the cells, this action does NOT fire a long-press Gesture. Tried that, no success.
Will-select-row-at: I implement the function func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? within the UITableViewDelegate code; it isn't called when the user touches the drag handles.
targetIndexPathForMoveFromRowAt: The func func tableView(_ tableView: UITableView, targetIndexPathForMoveFromRowAt sourceIndexPath: IndexPath, toProposedIndexPath proposedDestinationIndexPath: IndexPath) -> IndexPath fires when the dragged cell changes position, but not until then; it does NOT catch the start of the lift/drag process that I'm looking for.
Likewise, willBeginEditingRowAt and shouldHighlightRowAt aren't called either.
Various scrollView functions: they all get called when the user is scrolling the whole table, not when the user is reordering it.
Watching for "set editing": the drag handles need to always be present, so "editing" is always set to true.
Somewhat similar question, unfortunately without an answer that I can use (and also not in Swift).
I suspect that there must be a simple notification that the cell has been lifted and is being dragged using the handles, even if it hasn't been moved far enough to be above or below its old place yet. After all, the OS "knows" about this because it changes the background and adds shadows & so forth. Any help accessing that notification so that other code can respond to it as well would be most appreciated!
It's a little strange that these are not documented, but you can define the following functions in your UITableViewController (or in the UITableViewDelegate) which will be called when cell dragging starts or ends, respectively:
#objc func tableView(_ tableView: UITableView, willBeginReorderingRowAtIndexPath indexPath: IndexPath) {
// Dragging started
}
#objc func tableView(_ tableView: UITableView, didEndReorderingRowAtIndexPath indexPath: IndexPath) {
// Dragging ended
}
I've implemented swipe to delete in UITableView a lot of times before, but never faced this problem before. In my last app delete button sometimes (not always) doesn't shift cell's content, but just overlaps it. See attached screenshot.
I use standard iOS functionality for this:
func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
return true
}
Probably, somebody already faced with this issue and know how to fix it?
There seems to be an error that's impossible to avoid, but I'm hoping someone can do the impossible.
In a UITableView editMode there's a lefthand delete indicator (red circle with a white line):
I just want the drag / drop grip on the right, so I get rid of the indicator by calling:
func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCellEditingStyle {
return .none
}
However, it also seems pretty clear that if you want the ability to swipe for actions...
You CANNOT call the above "editingStyleForRowAt" method. So it seems like I'm forced to choose only one of the above features... oddly you can only return ".none", ".insert", or ".delete".
Anyone know of a solution?
In your case you should try with custom cell.
Please check below link.
I just assume, it is work for you, I am not sure.
https://www.cocoacontrols.com/controls/eecellswipegesturerecognizer
I use for my app UITableview and I got a problem.
Method tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) called only by sliding finger from left to right or from right to left the item. But when I do normal click by this item, this method doesn't called
What is supposed to do the cell when you click on it?. As a first impression, the line tableView.deselectRowAtIndexPath(indexPath, animated: false) is not animating the select of the cell, and that can cause the impression that nothing is happening.
Second, the implementation of the cellForRowAtIndexPath: and didSelectRowAtIndexPath: methods look almost the same. I mean, in both methods your are getting the same data from the categories array and not changing anything, at least that's what I can see with the code you provided.
Third, may the implementation of the code inside your subclass, to which item belongs to in let item = categories[indexPath.row], be wrong.
Fourth, why your code have semicolons?.
You can review all of these to start discarding.
I am trying to get used to swift language so as usual after learning some basics about it I have started with storyboard and table view.I have dragged table view controller to storyboard
and created class for it and attached to view controller also.
As soon as I uncomment cellForRowAtIndexPath method I get following swift compiler error
Overriding method with selector 'tableView:cellForRowAtIndexPath:' has incompatible type '(UITableView!, NSIndexPath!) -> UITableViewCell!'
I also have included numberOfSectionInTableView and numberOfRowInSection delegate methods.
I don't know what I am doing wrong here.
so can anybody please help me resolve this issue.
Thanks in advance.
replace your function with this :
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
}
This will solve your problem.
EDIT:
If you want to use existing function then you can remove all ! from function and your error will gone.