How to do pagination in uitableview without using Api? - ios

Question

I am working on one project where i want to use pagination in uitableview without using api. I am having a nsdictionary and i kept that dictionary in an nsarray ,now i want that in a list view type there are 10,20,30 numbers and which number i select that amount of rows will display in UI.
I have done this in uitableview
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *string1 = #"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:string1];
if(!cell)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:string1];
UILabel *label1 = (UILabel*)[cell.contentView viewWithTag:401];
CGFloat widthLabelHeader = CGRectGetWidth(orderTable.frame)/7;
if(!label1)
{
label1 = [[UILabel alloc]init];
label1.frame = CGRectMake(0, 0, widthLabelHeader, 45);
label1.layer.borderWidth = 0.5;
label1.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label1];
}
label1.textAlignment = NSTextAlignmentCenter;
UILabel *label2 = (UILabel*)[cell.contentView viewWithTag:402];
if(!label2)
{
label2 = [[UILabel alloc]init];
label2.frame = CGRectMake(CGRectGetMaxX(label1.frame), 0, widthLabelHeader, 45);
label2.layer.borderWidth = 0.5;
label2.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label2];
}
label2.textAlignment = NSTextAlignmentCenter;
UILabel *label3 = (UILabel*)[cell.contentView viewWithTag:403];
if(!label3)
{
label3 = [[UILabel alloc]init];
label3.frame = CGRectMake(CGRectGetMaxX(label2.frame), 0, widthLabelHeader, 45);
label3.layer.borderWidth = 0.5;
label3.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label3];
}
label3.textAlignment = NSTextAlignmentCenter;
UILabel *label4 = (UILabel*)[cell.contentView viewWithTag:404];
if(!label4)
{
label4 = [[UILabel alloc]init];
label4.frame = CGRectMake(CGRectGetMaxX(label3.frame), 0, widthLabelHeader, 45);
label4.layer.borderWidth = 0.5;
label4.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label4];
}
label4.textAlignment = NSTextAlignmentCenter;
UILabel *label5 = (UILabel*)[cell.contentView viewWithTag:405];
if(!label5)
{
label5 = [[UILabel alloc]init];
label5.frame = CGRectMake(CGRectGetMaxX(label4.frame), 0, widthLabelHeader, 45);
label5.layer.borderWidth = 0.5;
label5.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label5];
}
label5.textAlignment = NSTextAlignmentCenter;
UILabel *label6 = (UILabel*)[cell.contentView viewWithTag:406];
if(!label6)
{
label6 = [[UILabel alloc]init];
label6.frame = CGRectMake(CGRectGetMaxX(label5.frame), 0, widthLabelHeader, 45);
label6.layer.borderWidth = 0.5;
label6.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label6];
}
label6.textAlignment = NSTextAlignmentCenter;
UILabel *label7 = (UILabel*)[cell.contentView viewWithTag:407];
if(!label7)
{
label7 = [[UILabel alloc]init];
label7.frame = CGRectMake(CGRectGetMaxX(label6.frame), 0, widthLabelHeader, 45);
label7.layer.borderWidth = 0.5;
label7.font = [UIFont fontWithName:#"ChalkboardSE-Bold" size:14];
[cell.contentView addSubview:label7];
}
label7.textAlignment = NSTextAlignmentCenter;
dict1 = [array1 objectAtIndex:indexPath.row];
if( dict1)
{
label1.text = [dict1 objectForKey:#"key1" ];
label1.backgroundColor = [UIColor lightGrayColor];
label2.text = [dict1 objectForKey:#"key2" ];
label2.backgroundColor = [UIColor lightGrayColor];
label3.text = [dict1 objectForKey:#"key3" ];
label3.backgroundColor = [UIColor lightGrayColor];
label4.text = [dict1 objectForKey:#"key4" ];
label4.backgroundColor = [UIColor lightGrayColor];
label5.text = [dict1 objectForKey:#"key5" ];
label5.backgroundColor = [UIColor lightGrayColor];
label6.text = [dict1 objectForKey:#"key6" ];
label6.backgroundColor = [UIColor lightGrayColor];
label7.text = [dict1 objectForKey:#"key7" ];
label7.backgroundColor = [UIColor lightGrayColor];
}}
return cell;
}
Please Help me how to do this?

Answer 1

use this method is method and call Api and append in same array which used in table datasource
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
BOOL endOfTable = (scrollView.contentOffset.y >= ((showListingArray.count * 60) - scrollView.frame.size.height)); // Here 40 is row height
nextPage ++;
NSString *nextPageStr = [NSString stringWithFormat:#"%d", nextPage];
int totalpages = [[PaginnationDic objectForKey:#"totalPages"]intValue];
if ( endOfTable && !scrollView.dragging && !scrollView.decelerating)
{
if (nextPage >= totalpages) {
// NSLog(#"No More Page to load");
return;
}
objPCDetailTableView.tableFooterView = footerView;
NSDictionary *parametrs = #{#"movieid":_movieID, #"page":nextPageStr, #"cityId":[Utility getCityID]};
[self getMoviesDetailFromApi:parametrs];
[(UIActivityIndicatorView *)[footerView viewWithTag:10] startAnimating];
}
}

Answer 2

You should set this deleget method
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;
with number you entered in text field and make this call [tableView reloadData]
or use this delegate methods
- (void)insertRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation;
to insert just new rows into you tableView.