Falling into an infinite loop when trying to implement Infinite Scrolling using Swift
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Assistance would be much appreciated with the following issue.
My code falls into an infinite loop when scrolling-up a tableView even though I have implemented the right boolean checks (so I believe)...
Bool to check if I am already fetching more content:
var fetchingMore = false
This is my scrollViewDidScroll func:
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let offsetY = scrollView.contentOffset.y
let contentHeight = scrollView.contentSize.height
if offsetY > contentHeight - scrollView.frame.height{
if !fetchingMore{
radius += 5
fetchMoreVenues()
}//end if
}//end if
}//end func
This is my fetchMoreVenues func which fetches more content but is being called infinitely for some reason:
func fetchMoreVenues(){
fetchingMore = true
DataService.run.fetchVenueNearby(deviceLocation: currentLocation, radius: radius) { (venues) in
for venue in venues {
if !self.venueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.venueArray.append(venue)
}
if !self.filteredVenueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.filteredVenueArray.append(venue)
}
}//end for
self.fetchingMore = false
self.tableView.reloadData()
}//end fetchVenueNearby
}//end func
ios swift uitableview uiscrollview
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
add a comment |
0
Assistance would be much appreciated with the following issue.
My code falls into an infinite loop when scrolling-up a tableView even though I have implemented the right boolean checks (so I believe)...
Bool to check if I am already fetching more content:
var fetchingMore = false
This is my scrollViewDidScroll func:
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let offsetY = scrollView.contentOffset.y
let contentHeight = scrollView.contentSize.height
if offsetY > contentHeight - scrollView.frame.height{
if !fetchingMore{
radius += 5
fetchMoreVenues()
}//end if
}//end if
}//end func
This is my fetchMoreVenues func which fetches more content but is being called infinitely for some reason:
func fetchMoreVenues(){
fetchingMore = true
DataService.run.fetchVenueNearby(deviceLocation: currentLocation, radius: radius) { (venues) in
for venue in venues {
if !self.venueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.venueArray.append(venue)
}
if !self.filteredVenueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.filteredVenueArray.append(venue)
}
}//end for
self.fetchingMore = false
self.tableView.reloadData()
}//end fetchVenueNearby
}//end func
ios swift uitableview uiscrollview
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
add a comment |
0
0
0
Assistance would be much appreciated with the following issue.
My code falls into an infinite loop when scrolling-up a tableView even though I have implemented the right boolean checks (so I believe)...
Bool to check if I am already fetching more content:
var fetchingMore = false
This is my scrollViewDidScroll func:
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let offsetY = scrollView.contentOffset.y
let contentHeight = scrollView.contentSize.height
if offsetY > contentHeight - scrollView.frame.height{
if !fetchingMore{
radius += 5
fetchMoreVenues()
}//end if
}//end if
}//end func
This is my fetchMoreVenues func which fetches more content but is being called infinitely for some reason:
func fetchMoreVenues(){
fetchingMore = true
DataService.run.fetchVenueNearby(deviceLocation: currentLocation, radius: radius) { (venues) in
for venue in venues {
if !self.venueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.venueArray.append(venue)
}
if !self.filteredVenueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.filteredVenueArray.append(venue)
}
}//end for
self.fetchingMore = false
self.tableView.reloadData()
}//end fetchVenueNearby
}//end func
ios swift uitableview uiscrollview
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
Assistance would be much appreciated with the following issue.
My code falls into an infinite loop when scrolling-up a tableView even though I have implemented the right boolean checks (so I believe)...
Bool to check if I am already fetching more content:
var fetchingMore = false
This is my scrollViewDidScroll func:
func scrollViewDidScroll(_ scrollView: UIScrollView) {
let offsetY = scrollView.contentOffset.y
let contentHeight = scrollView.contentSize.height
if offsetY > contentHeight - scrollView.frame.height{
if !fetchingMore{
radius += 5
fetchMoreVenues()
}//end if
}//end if
}//end func
This is my fetchMoreVenues func which fetches more content but is being called infinitely for some reason:
func fetchMoreVenues(){
fetchingMore = true
DataService.run.fetchVenueNearby(deviceLocation: currentLocation, radius: radius) { (venues) in
for venue in venues {
if !self.venueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.venueArray.append(venue)
}
if !self.filteredVenueArray.contains(where: { ($0.venueID == venue.venueID) }){
self.filteredVenueArray.append(venue)
}
}//end for
self.fetchingMore = false
self.tableView.reloadData()
}//end fetchVenueNearby
}//end func
ios swift uitableview uiscrollview
ios swift uitableview uiscrollview
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
edited Nov 22 '18 at 2:45
Sh_Khan
47.1k51433
47.1k51433
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
asked Nov 22 '18 at 0:48
RoggieRoggie
232214
232214
add a comment |
add a comment |
1 Answer
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0
May be reverse order
self.tableView.reloadData()
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
self.fetchingMore = false
}
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
May be reverse order
self.tableView.reloadData()
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
self.fetchingMore = false
}
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
add a comment |
0
May be reverse order
self.tableView.reloadData()
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
self.fetchingMore = false
}
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
add a comment |
0
0
0
May be reverse order
self.tableView.reloadData()
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
self.fetchingMore = false
}
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
May be reverse order
self.tableView.reloadData()
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
self.fetchingMore = false
}
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
edited Nov 22 '18 at 1:02
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
answered Nov 22 '18 at 0:55
Sh_KhanSh_Khan
47.1k51433
47.1k51433
add a comment |
add a comment |
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