UITableViewCell UITableViewCellStateDefaultMask
Constants used to determine the new state of a cell as it transitions between states.
enum {
UITableViewCellStateDefaultMask = 0,
UITableViewCellStateShowingEditControlMask = 1 << 0,
UITableViewCellStateShowingDeleteConfirmationMask = 1 << 1
};
Constants
UITableViewCellStateDefaultMask
The normal state of a table cell.
UITableViewCellStateShowingEditControlMask
The state of a table view cell when the table view is in editing mode.
UITableViewCellStateShowingDeleteConfirmationMask
The state of a table view cell that shows a button requesting confirmation of a delete gesture.
Discussion of [UITableViewCell UITableViewCellStateDefaultMask]
The methods that use these constants are didTransitionToState: and willTransitionToState:.
UITableViewCell UITableViewCellStateDefaultMask example.
- (void)willTransitionToState:(UITableViewCellStateMask)state {
if (state == UITableViewCellStateDefaultMask) {
// User has switched back to default state...
// ...
}
}
if (state == UITableViewCellStateDefaultMask) {
// User has switched back to default state...
// ...
}
}
Example of [UITableViewCell UITableViewCellStateDefaultMask].
- (void)didTransitionToState:(UITableViewCellStateMask)state {
[super didTransitionToState:state];
if (state == UITableViewCellStateShowingDeleteConfirmationMask || state == UITableViewCellStateDefaultMask) {
for (UIView *subview in self.subviews) {
if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellDeleteConfirmationControl"]) {
UIView *deleteButtonView = (UIView *)[subview.subviews objectAtIndex:0];
CGRect f = deleteButtonView.frame;
f.origin.x -= 20;
deleteButtonView.frame = f;
subview.hidden = NO;
[UIView beginAnimations:@"anim" context:nil];
subview.alpha = 1.0;
[UIView commitAnimations];
}
}
}
}
[super didTransitionToState:state];
if (state == UITableViewCellStateShowingDeleteConfirmationMask || state == UITableViewCellStateDefaultMask) {
for (UIView *subview in self.subviews) {
if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewCellDeleteConfirmationControl"]) {
UIView *deleteButtonView = (UIView *)[subview.subviews objectAtIndex:0];
CGRect f = deleteButtonView.frame;
f.origin.x -= 20;
deleteButtonView.frame = f;
subview.hidden = NO;
[UIView beginAnimations:@"anim" context:nil];
subview.alpha = 1.0;
[UIView commitAnimations];
}
}
}
}
UITableViewCell UITableViewCellStateDefaultMask example.
- (void)willTransitionToState:(UITableViewCellStateMask)state {
[super willTransitionToState:state];
if (state == UITableViewCellStateDefaultMask) {
NSLog(@"Default");
// When the cell returns to normal (not editing)
// Do something...
} else if ((state & UITableViewCellStateShowingEditControlMask) && (state & UITableViewCellStateShowingDeleteConfirmationMask)) {
NSLog(@"Edit Control + Delete Button");
// When the cell goes from Showing-the-Edit-Control (-) to Showing-the-Edit-Control (-) AND the Delete Button [Delete]
// !!! It's important to have this BEFORE just showing the Edit Control because the edit control applies to both cases.!!!
// Do something...
} else if (state & UITableViewCellStateShowingEditControlMask) {
NSLog(@"Edit Control Only");
// When the cell goes into edit mode and Shows-the-Edit-Control (-)
// Do something...
} else if (state == UITableViewCellStateShowingDeleteConfirmationMask) {
NSLog(@"Swipe to Delete [Delete] button only");
// When the user swipes a row to delete without using the edit button.
// Do something...
}
}
[super willTransitionToState:state];
if (state == UITableViewCellStateDefaultMask) {
NSLog(@"Default");
// When the cell returns to normal (not editing)
// Do something...
} else if ((state & UITableViewCellStateShowingEditControlMask) && (state & UITableViewCellStateShowingDeleteConfirmationMask)) {
NSLog(@"Edit Control + Delete Button");
// When the cell goes from Showing-the-Edit-Control (-) to Showing-the-Edit-Control (-) AND the Delete Button [Delete]
// !!! It's important to have this BEFORE just showing the Edit Control because the edit control applies to both cases.!!!
// Do something...
} else if (state & UITableViewCellStateShowingEditControlMask) {
NSLog(@"Edit Control Only");
// When the cell goes into edit mode and Shows-the-Edit-Control (-)
// Do something...
} else if (state == UITableViewCellStateShowingDeleteConfirmationMask) {
NSLog(@"Swipe to Delete [Delete] button only");
// When the user swipes a row to delete without using the edit button.
// Do something...
}
}
