what is the difference between didselectrowindexpath and willselectrowindexpath in iphone?

Question

Give an explanation about difference between UITableView delegate methods:

didDeselectRowAtIndexPath:

-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath

and

willSelectRowAtIndexPath

-(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath

willSelectRowAtIndexPath is called before the row is selected and didDeselectRowAtIndexPath after the row get selected. — Nuzhat Zari, Jun 07 '12 at 05:09
@Prim.Muthu: just writ both method in `.m` file and put break points on them you will understand.. — Maulik, Jun 07 '12 at 05:25

score 7 · Answer 1 · edited Jun 07 '12 at 05:25

7

willSelectRowAtIndexPath message is sent to the UITableView Delegate after the user lifts their finger from a touch of a particular row and before didSelectRowAtIndexPath.

willSelectRowAtIndexPath allows you to either confirm that the particular row can be selected, by returning the indexPath, or select a different row by providing an alternate indexPath.

Good luck

T

edited Jun 07 '12 at 05:25

Maulik

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answered Jun 07 '12 at 05:25

timthetoolman

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TheTiger · Accepted Answer · 2018-04-16T12:06:06.680

the code written in

-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath(NSIndexPath*)indexPath

method is run after selected the row and the code is written in

-(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath(NSIndexPath*)indexPath

run just before the row selected.

they are same as

- (void)viewDidAppear:(BOOL)animated and - (void)viewWillAppear:(BOOL)animated

let me know if you have any confusion now.

what is the difference between didselectrowindexpath and willselectrowindexpath in iphone?

2 Answers2