UISwitch (on/off) to show and hide UITableView

[Joseph83]

Just wonder if it's possible to have UISwitch (ON/OFF) to show/hide the UITableView. For example:

There are 3 sections (Section 0,Section 1, Section 2) - cellForRowAtIndexPath

//it is for quantity (1 row) that redirects to another controller
if (indexPath.section == 0)
{

}

//it is for UISwitch (On/Off)
else if (indexPath.section == 1)
{
NSString *cellValue1 = [mealArray objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue1;
//NSLog(cell.textLabel.text);

switchview = [[[UISwitch alloc] initWithFrame:CGRectZero] autorelease];
cell.accessoryView = switchview;

[(UISwitch *) cell.accessoryView addTarget: self action: @selector(checkState forControlEvents: UIControlEventValueChanged];
}

//it is for Section 2 (if switch ON then display Section 2 otherwise hide section 2)
else
{
NSString *cellValue2 = [numberArray objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue2;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
}

//UISwitch Action (On/Off)
- (IBAction) checkState: (id) sender {
if (switchview.on)
{
[tableNum setHidden:NO];
[tableNum reloadData];
NSLog(@"Switched ON yeah");
}

else {
[tableNum setHidden:YES];
//[tableNum reloadData];
NSLog(@"Switched OFF yeah");
}
}

* I test NSLog and it is correct BUT I don't know why UITableView (tableNum) does not show/hide. Actually tableNum is a part of Section 0,1,2. Wonder if I have to create another UITableView for Section 2 only. I am confused.

It's similar to Settings - WIFI (ON/OFF) then display the list of SSID.

Please give me advice. Hope to hear from you soon!

[Krillere]

Please use the '[code]' and '[ /code]' tags for entering code. That's just confusing :P

[Joseph83]

Just wonder if it's possible to have UISwitch (ON/OFF) to show/hide the UITableView. For example:

There are 3 sections (Section 0,Section 1, Section 2) - cellForRowAtIndexPath

//it is for quantity (1 row) that redirects to another controller
if (indexPath.section == 0) 
{

}

//it is for UISwitch (On/Off)
else if (indexPath.section == 1)
{
NSString *cellValue1 = [mealArray objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue1;
//NSLog(cell.textLabel.text);

switchview = [[[UISwitch alloc] initWithFrame:CGRectZero] autorelease];
cell.accessoryView = switchview;

[(UISwitch *) cell.accessoryView addTarget: self action: @selector(checkState forControlEvents: UIControlEventValueChanged];
}

//it is for Section 2 (if switch ON then display Section 2 otherwise hide section 2)
else
{
NSString *cellValue2 = [numberArray objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue2;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
}

//UISwitch Action (On/Off)
- (IBAction) checkState: (id) sender {
if (switchview.on)
{
[tableNum setHidden:NO];
[tableNum reloadData];
NSLog(@"Switched ON yeah");
}

else {
[tableNum setHidden:YES];
//[tableNum reloadData];
NSLog(@"Switched OFF yeah");
}
}

* I test NSLog and it is correct BUT I don't know why UITableView (tableNum) does not show/hide. Actually tableNum is a part of Section 0,1,2. Wonder if I have to create another UITableView for Section 2 only. I am confused.

It's similar to Settings - WIFI (ON/OFF) then display the list of SSID.

Please give me advice. Hope to hear from you soon!

[Duncan C]

Originally Posted by Joseph83

Just wonder if it's possible to have UISwitch (ON/OFF) to show/hide the UITableView. For example:

There are 3 sections (Section 0,Section 1, Section 2) - cellForRowAtIndexPath

//it is for quantity (1 row) that redirects to another controller
if (indexPath.section == 0) 
{

}

//it is for UISwitch (On/Off)
else if (indexPath.section == 1)
{
NSString *cellValue1 = [mealArray objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue1;
//NSLog(cell.textLabel.text);

switchview = [[[UISwitch alloc] initWithFrame:CGRectZero] autorelease];
cell.accessoryView = switchview;

[(UISwitch *) cell.accessoryView addTarget: self action: @selector(checkState forControlEvents: UIControlEventValueChanged];
}

//it is for Section 2 (if switch ON then display Section 2 otherwise hide section 2)
else
{
NSString *cellValue2 = [numberArray objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue2;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
}

//UISwitch Action (On/Off)
- (IBAction) checkState: (id) sender {
if (switchview.on)
{
[tableNum setHidden:NO];
[tableNum reloadData];
NSLog(@"Switched ON yeah");
}

else {
[tableNum setHidden:YES];
//[tableNum reloadData];
NSLog(@"Switched OFF yeah");
}
}

* I test NSLog and it is correct BUT I don't know why UITableView (tableNum) does not show/hide. Actually tableNum is a part of Section 0,1,2. Wonder if I have to create another UITableView for Section 2 only. I am confused.

It's similar to Settings - WIFI (ON/OFF) then display the list of SSID.

Please give me advice. Hope to hear from you soon!

What do you mean tableNum "is part of Section 0,1,2"? That part of your post makes me think that you are totally lost.

If there is only one table view on the screen, you should only have one table view in your program. You should not have a separate table view object for some sections but not others.


Where is tableNum declared? Is it of type UITableView* ?

How is it connected to your table view? Is it an outlet? Is it an instance variable that you set at runtime?

My guess is that tableNum is nil.

Change your log statements to show the value of tableNum:

NSLog(@"tableNum = %@. Set hidden = FALSE", tableNum);