UITableView rows insertion, deletion, updation

Question

I am creating an ios app in which i want to add each new row at the top in the UITableView but the already existing row should not be deleted.

For example i have a cell in row 1 when i click on it it will display the image the same image should be displayed even when we insert a new cell in row 1 and the old one moved to row 2.

I have searched it in stackoverflow but i could not understand what they have explained. So can anyone provide the tutorial or the sample application to insert, delete and update the row in UITableView in ios.

Thanks in advance.

score 3 · Accepted Answer · edited May 23 '17 at 10:29

3

when you are adding new cell then Insert your cell data on ZERO index like this

NSMutableArray *dataArray = [[NSMutableArray alloc]initWithObjects:@"Hello",@"How Are You", nil]; 

// It's your data array that you have already allocation in viewDidLoad or some where else.. 


[dataArray insertObject:@"Joy" atIndex:0];  // Try this line on add there your are adding new cell data

[tableView beginUpdates];
NSIndexPath *indexpath = [NSIndexPath indexPathforRow:0 inSection:0];
NSArray *indextoadd = [NSArray arrayWithObject:indexpath1];
[tableView insertRowsAtIndexPaths:indextoadd withRowAnimation:UITableViewRowAnimationAutomatic];
[tableView endUpdates];

Using this array will auto sort and "Joy" name will inserted on ZERO index and array auto shifted

after this Reload your tableview

[tableviewObj reloadData];

try this hope you will got success. For fully table Example UITableView example in iOS

For delete row Check it.. How can I delete selected row from UITableView
For Update row check it .. refresh a single UITableViewCell

In update before reload you table replace date in your array

[dataArray replaceObjectAtIndex:index withObject:newObject];

edited May 23 '17 at 10:29

Community

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answered Aug 01 '14 at 10:51

Jogendra.Com

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what about delete and update – Balaji Kondalrayal Aug 01 '14 at 11:42
I have updated my answer check it.. – Jogendra.Com Aug 01 '14 at 11:50
but by using your code for insertion it is adding row in bottom of the table not as first row – Balaji Kondalrayal Aug 01 '14 at 11:54
But I have tested this, It's adding on zero index of array then How can It's show on last... – Jogendra.Com Aug 01 '14 at 12:02
I agree. Its adding on zero index of array. Can u provide me the cellforrowatindexpath code – Balaji Kondalrayal Aug 01 '14 at 12:18
See at here ... Full code of all function .. http://pastebin.com/tCrzSLrT – Jogendra.Com Aug 01 '14 at 12:21

score 2 · Answer 2 · answered Aug 01 '14 at 10:56

- (void)insertRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation;
- (void)deleteRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation;
- (void)reloadRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation;

These three methods you can use for delete,insert and update table row. Here Apple code for insertRowAtIndexPaths click here

UITableView rows insertion, deletion, updation

2 Answers2