Determining the state of a UISwitch when the UITableCell it is on is clicked
-
26-10-2019 - |
سؤال
I a newb to IOS programming and I'm having a problem. I've got a table view that I dynamically load with a UISwitch in each cell using the following code in cellForRowAtIndexPath
UISwitch *mySwitch = [[UISwitch alloc]init];
self.myNewSwitch = mySwitch;
[mySwitch release];
[cell setAccessoryView: self.myNewSwitch];
[(UISwitch *)cell.accessoryView addTarget:self action:@selector(changeState:) forControlEvents:UIControlEventValueChanged];
That works fine. When I click on the switch, the code in changeState runs fine.
Here's where my problem is. When the user presses a cell in the table, I want to see what state the switch is in (On or Off). My problem is that I can not figure out how to determine that in the didSelectRowAtIndexPath code. I can determine the correct cell, but I couldn't find out how to access the switch that is on that cell when I searched using Google. Here's my code for didSelectRowAtIndexPath:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//If the on/off switch is on, go to the probes page. if off, do not do anything
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
//Determine the switch state here.
UISwitch *theSwitch;
theSwitch = ??????? //<- What do I do???
if (theSwitch.isOn) {
//define the probes view controller
Probes *detailViewController = [[Probes alloc] initWithNibName:@"Probes" bundle:nil];
//pass in the ip address
detailViewController.lblIPAddr = cell.detailTextLabel.text;
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
}
//Deselect this row
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
Any help/code will be helpful.
-NCGrimbo
المحلول
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//If the on/off switch is on, go to the probes page. if off, do not do anything
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
//Determine the switch state here.
UISwitch *theSwitch = (UISwitch *)cell.accessoryView ;
if (theSwitch.isOn) {
//define the probes view controller
Probes *detailViewController = [[Probes alloc] initWithNibName:@"Probes" bundle:nil];
//pass in the ip address
detailViewController.lblIPAddr = cell.detailTextLabel.text;
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
}
//Deselect this row
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
but I don't know why you are using,
UISwitch *mySwitch = [[UISwitch alloc]init];
self.myNewSwitch = mySwitch;
[mySwitch release];
[cell setAccessoryView: self.myNewSwitch];
every time you make new UITableViewCell, self.myNewSwitch is same UISwitch (Last UiSwitch).