I am trying to change the selected UITableViewCell, but a little weird thing is happening here. I have placed the two images. Please take a look:
When I select the 'early' cell, it turns blue. It moves to the 'early blah blah' UIViewController. Then when I hit the 'Find' UIButton, it goes back to the first view.
It works, but the cell is still selected blue! So I wrote some code as below:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
if ([_currentMethod isEqual: #"searchIt"]) {
if (indexPath.row == 0) {
BookMark2ViewController* bookMark2 = [[BookMark2ViewController alloc] init];
UITableViewCell* cell = [self tableView:_tableView
cellForRowAtIndexPath:indexPath];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
[self.navigationController pushViewController:bookMark2 animated:YES];
}else if (indexPath.row == 1) {
BookMarkViewController* bookMark1 = [[BookMarkViewController alloc] init];
[self.navigationController pushViewController:bookMark1 animated:YES];
}
}
The two lines right in the middle of the code:
UITableViewCell* cell = [self tableView:_tableView
cellForRowAtIndexPath:indexPath];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
These two lines didn't work. Does any one know how to fix this?
If you dont want the cells to show selection at all, place cell.selectionStyle = UITableViewCellSelectionStyleNone in your cellForRowAtIndexPath: method.
if you want the cell to be selected and then deselect, place
[tableView deselectRowAtIndexPath:indexPath animated:YES];
in your didSelectRowAtIndexPath:
hope this helps
UITableViewCell* cell = [self tableView:_tableView cellForRowAtIndexPath:indexPath];
// Make sure your cell is not nil.
cell.selectionStyle = UITableViewCellSelectionStyleNone;
I had a such situation.
Related
I have a working table view on my iphone app, and am implementing a second view using navigationController.
But when I try to select a cell on the initial view, it does not respond i.e. no highlighting in blue, no selection.
Can anyone suggest what I might have missed, or what is responsible for actually selecting the cell when the user taps it?
OK thanks for your suggestions - still no luck. here is my code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]autorelease];
[cell setSelectionStyle: UITableViewCellSelectionStyleBlue];
UIView *selectionView = [[[UIView alloc] init] autorelease];
selectionView.backgroundColor =[UIColor redColor];
cell.selectedBackgroundView = selectionView;
}
// format text
cell.textLabel.font = [UIFont fontWithName:#"Arial" size:12];
cell.textLabel.text = [tableArray objectAtIndex:indexPath.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//NSUInteger row = indexPath.row;
//[DetailView selectRowAtIndexPath:indexPath animated:YES];
//UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath.row];
//[cell setSelectionStyle: UITableViewCellSelectionStyleBlue];
DetailView *detailView = [[DetailView alloc] initWithNibName:#"DetailView" bundle:nil];
[self.navigationController pushViewController:detailView animated:YES];
[DetailView release];
}
May be you have done this line of code in cellForRowatIndexPath::
cell.selectionStyle = UITableViewCellSelectionStyleNone;
If yes, then replace it with either of these:
cell.selectionStyle = UITableViewCellSelectionStyleGray;
or
cell.selectionStyle = UITableViewCellSelectionStyleBlue;
Without looking at your code I would say you have to add this line in your cellForRowAtIndexPath delegate method.
[cell setSelectionStyle:UITableViewCellSelectionStyleBlue];
And also you have to implement this delegate method which gets called when you tap on cell of UITableView..
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
}
How can you turn the blue selector to go off when I move back into the view? At the moment, when I select it, I get pushed to another view. However, when I go back into the original view, it is still selected.
How can I turn it off when I go back onto the original view?
Thanks.
In your tableView:didSelectRowAtIndexPath: method you should include the following:
[tableView deselectRowAtIndexPath:indexPath animated:YES];
You can also try this
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"myCellId";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
// Set up the cell...
cell.textLabel.text = #"foo";
return cell;
}
I "always" deselect the rows when the view disappears:
-(void)viewDidDisappear:(BOOL)animated {
int i = 0;
while (YES) {
NSIndexPath *path = [NSIndexPath indexPathForRow:i++ inSection:0];
if ([yourTable cellForRowAtIndexPath:path] == nil) { break; }
[yourTable deselectRowAtIndexPath:path animated:NO];
}
}
Haven't checked the code
I have a UITableview in a popover. I cannot seem to get the deselection to animate or work at all. The checkmark stays there on the previous selected row (the checkmark is set from my Model class which is just an NSDictionary, where one value is #"YES", and all other values are #"NO." When I close the popover, and reopen it, the checkmark is correct, but I cannot seem to get it while the popover is open. Thoughts? Thanks.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger row = [indexPath row];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.accessoryType = UITableViewCellAccessoryCheckmark;
// [cell setSelected:YES animated:YES];
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
deselectRowAtIndexPath does not remove the accessoryView of the UITableViewCell, it removes the highlighted (blue) background of the UITableViewCell. The following code sets the check mark of a cell:
cell.accessoryType = UITableViewCellAccessoryCheckmark;
To remove the checkmark from that cell, you have to do:
cell.accessoryType = UITableViewCellAccessoryNone;
I have two questions about content view.
1st question:
There are two content views in tableview cell. How do I know which one is touched?
2nd question:
I only want content view to appear in the first section of the tableview.
But, when I scroll up tableview, content view appears in the third section also.
How can I fix this problem?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
UIImageView *imgView, *imgView1;
if(cell == nil)
{
if (indexPath.section == 0) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.text = #"test";
imgView = [[UIImageView alloc] initWithFrame:CGRectMake(100,0,20,62)];
[imgView setImage:[UIImage imageNamed:#"1.png"]];
imgView.tag = 10;
[cell.contentView addSubview:imgView];
[imgView release];
imgView1 = [[UIImageView alloc] initWithFrame:CGRectMake(200,0,20,62)];
[imgView1 setImage:[UIImage imageNamed:#"2.png"]];
imgView1.tag = 20;
[cell.contentView addSubview:imgView1];
[imgView1 release];
}
}
else
{
if (indexPath.section == 0) {
imgView = (id)[cell.contentView viewWithTag:10];
imgView1 = (id)[cell.contentView viewWithTag:20];
}
}
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
// How do I know left content view is touched or right content view is touched?
}
1) You can add different recognizers to each view which will call different methods.
// create view
UIImageView *view = [UIImageView ...];
view.userInteractionEnabled = YES;
// create recognizer
UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(myViewTapped:)];
// add recognizer to your view
[view addGestureRecognizer:recognizer];
[recognizer release];
// now when user will tap on your view method - (IBAction)myViewTapped:(UIGestureRecognizer); will be called
2) As you are reusing cell, don't forget to nil or remove from content view unneedfull views (as they already been added in previous section and reused in third one).
UIView *view2remove = [cell viewWithTag:itsTag];
[view2remove removeFromSuperview];
The code you posted is missing a brace. You need an extra close brace before the else. Presumably your real code is not, or it would not compile.
In the else clause, assigning something to local variables won't do anything.
You also need to do something if indexPath.section != 0. If you do nothing, it is possible you will get the content of a cell that was built earlier. If you want the views not to appear, you would have to remove them. Something like:
for (UIView *subview in cell.contentView.subviews)
[subview removeFromSuperview];
But I think it will be easier if you just use a different cell identifier for section 1 and other sections. Then you will not get back cells that have been used for section 1 in section 3, and have to reconfigure them. Like:
NSString *CellIdentifier;
if (indexPath.section == 0)
CellIdentifier = #"Section1Cell";
else
CellIdentifier = #"OtherSectionCell";
UITableViewCell *cell = (UITableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
I am getting a really strange error and I can't figure out how to fix it: When I scroll around in my UITableView it will sometimes highlight a cell blue, even when I don't fully selected.
For example:
-Cell 1-
-Cell 2-
-Cell 3-
-Cell 4-
If I put my finger down on Cell 2 and scroll to Cell 4 it will leave Cell 2 highlighted, even though didSelectRowAtIndexPath: is never fired.
Any ideas?
EDIT
Added code:
UITableViewCell *cell = nil;
static NSString *cellId = #"StyleDefault";
cell = [tableView dequeueReusableCellWithIdentifier:cellId];
if (cell == nil) {
cell = [[[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId] autorelease];
}
cell.textLabel.text = #"Cell One";
cell.textLabel.textAlignment = UITextAlignmentCenter;
[cell setAccessoryView:nil];
return cell;
FIXED IT!
My solution was two parts:
1) In cellForRowAtIndexPath: put "cell.selected = NO;", which fixes the problem of if the cell gets touched down on then goes off screen (scrolling).
UITableViewCell *cell = nil;
static NSString *cellId = #"StyleDefault";
cell = [tableView dequeueReusableCellWithIdentifier:cellId];
if (cell == nil) {
cell = [[[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId] autorelease];
}
cell.textLabel.text = #"Cell One";
cell.textLabel.textAlignment = UITextAlignmentCenter;
[cell setAccessoryView:nil];
//Here:
cell.selected = NO;
return cell;
2) Put "[tableView deselectRowAtIndexPath:indexPath animated:YES];" into didSelectRowAtIndexPath: instead of what I used to have "[[tableView cellForRowAtIndexPath:indexPath] setSelected:NO];" which was wrong on so many levels.
[tableView deselectRowAtIndexPath:indexPath animated:YES];
Hopefully that helps others that have this issue. Case closed.
You can use following while creating cell.
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
cell = Your allocation.
cell.selectionStyle = UITableViewCellSelectionStyleNone;
I guess you need to also please have look at the UIViewTable Property for Touch i.e. Delay Content Touches and Cancellable Content Touches.
Hope this helps.
Override -tableView:willSelectRowAtIndexPath: in your UITableView delegate, and return nil for everything just to make sure you're not allowing it to select the rows.