didSelectRowAtIndexPath won't work at all - objective-c

I have this code here:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[MMSideDrawerTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
switch (indexPath.section) {
case MMDrawerSectionOne:
if(indexPath.row == 0){
[cell.textLabel setText:#"Menu Item 1"];
}
break;
case MMDrawerSectionTwo:
if(indexPath.row == 0){
[cell.textLabel setText:#"Menu Item 2"];
}
break;
case MMDrawerSectionThree:
if(indexPath.row == 0){
[cell.textLabel setText:#"Menu Item 3"];
}else{
[cell.textLabel setText:#"Menu Item 4"];
}
break;
}
cell.backgroundColor = [UIColor clearColor];
cell.textLabel.textColor = [UIColor whiteColor];
cell.contentView.alpha = 0.7;
// Code to add background when user taps
UIView *bgColorView = [[UIView alloc] init];
bgColorView.backgroundColor = [UIColor colorWithRed:(55.0/255.0) green:(55/255.0) blue:(55/255.0) alpha:0.3];
bgColorView.layer.masksToBounds = YES;
cell.selectedBackgroundView = bgColorView;
NSLog(#"%#", indexPath);
return cell;
}
and this code here:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"Testing");
}
Whenever I tap a row on the UITable didSelectRowAtIndexPath does nothing. Is there anything I am doing wrong?
Peter

Open InterfaceBuilder and select your UITableView. A few questions to ask yourself:
Is "Selection" set to "Single" or "Multiple"? Having it set to "No Selection" will not fire didSelectRowAtIndexPath:
Is "User Interaction Enabled" checked? If not, didSelectRowAtIndexPath: will not fire
You can change these properties programmatically as follows:
self.tableView.allowsMultipleSelection = NO;
self.tableView.allowsSelection = YES;
self.tableView.userInteractionEnabled = YES;
If that doesn't work, try the accepted answer for this SO post here.

Related

Not able to select Button in custom table view cell in tvOS

I am working on a tvOS app in which custom table view cell is used, while showing data using labels is working perfectly fine but button selection is not working. is there any way to make button selection inside custom table view cell work in tvOS table view?
code snippet:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
MsgDetailsTableViewCell *cell;
static NSString *simpleTableIdentifier = #"Cell";
cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[MsgDetailsTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
NSDictionary*dataDict = [self.qArray objectAtIndex:indexPath.row];
NSString *followCountText = [NSString stringWithFormat:#"%# Following",[[dataDict objectForKey:#"followCount"] stringValue]];
if([[dataDict objectForKey:#"followCount"] integerValue]!=0)
{
[cell.statusListBtn addTarget:self action:#selector(openLikedList:) forControlEvents:UIControlEventPrimaryActionTriggered];
cell.statusListBtn.tag=111;
cell.followCountLbl.textColor = [UIColor colorWithRed:0/255.0 green:95/255.0 blue:167/255.0 alpha:1.0];
}
else
{
[cell.statusListBtn removeTarget:self action:#selector(openLikedList:) forControlEvents:UIControlEventPrimaryActionTriggered];
cell.statusListBtn.tag=111;
cell.followCountLbl.textColor = [UIColor grayColor];
}
cell.followCountLbl.text=followCountText;
return cell;
}
In above code Selection of statusListBtn is not working.
Do you mean that only when dataDict objectForKey:#"followCount"] integerValue]!=0 the button can perform the selector if so. you can try this
MsgDetailsTableViewCell *cell;
static NSString *simpleTableIdentifier = #"Cell";
cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[MsgDetailsTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
[cell.statusListBtn addTarget:self action:#selector(openLikedList:) forControlEvents:UIControlEventPrimaryActionTriggered];
cell.statusListBtn.tag=111;
}
NSDictionary*dataDict = [self.qArray objectAtIndex:indexPath.row];
NSString *followCountText = [NSString stringWithFormat:#"%# Following",[[dataDict objectForKey:#"followCount"] stringValue]];
if([[dataDict objectForKey:#"followCount"] integerValue]!=0)
{
cell.statusListBtn.userInteractionEnabled = YES;
cell.followCountLbl.textColor = [UIColor colorWithRed:0/255.0 green:95/255.0 blue:167/255.0 alpha:1.0];
}
else
{
cell.statusListBtn.userInteractionEnabled = NO;
cell.followCountLbl.textColor = [UIColor grayColor];
}
cell.followCountLbl.text=followCountText;
return cell;
If you want different event of button you can change UIControlEventPrimaryActionTriggered like UIControlEventTouchUpInside

How do clickable checkmark accessory and none accessory?

I have simple code in my TableViewController:
-(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath{
if(debug == 1){
NSLog(#"Running %# '%#'",self.class, NSStringFromSelector(_cmd));
}
static NSString *cellIndetifier = #"Student Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIndetifier
forIndexPath:indexPath];
Student *student = [self.frc objectAtIndexPath:indexPath];
NSMutableString *title = [NSMutableString stringWithFormat:#"%#", student.name];
[title replaceOccurrencesOfString:#"(null)"
withString:#""
options:0
range:NSMakeRange(0, [title length])];
cell.textLabel.text = title;
if (cell == nil) {
cell.textLabel.textColor = [UIColor whiteColor];
}
if ([self.checkedIndexPaths containsObject:indexPath])
{
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
return cell;
}
-(void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath{
if(debug == 1){
NSLog(#"Running %# '%#'",self.class, NSStringFromSelector(_cmd));
}
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
self.checkedIndexPaths = [self initializationNSSet:self.checkedIndexPaths];
if ([self.checkedIndexPaths containsObject:indexPath])
{
[self.checkedIndexPaths removeObject:indexPath];
cell.accessoryType = UITableViewCellAccessoryNone;
}
else
{
[self.checkedIndexPaths addObject:indexPath];
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
}
The code works fine, when I use DetailButton and DetailDisclosureButton instead of Checkmark and None, but when I use checkmark and none the row of table view isn't clickable in neither case (the method ableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath is not called). How can I do to get changed Checkmark and None (maybe do clickable whole row). I need multiple rows with checkmark and also remove the checked row, when I click on it again.
If you don't have a disclosure button then tableView:accessoryButtonTappedForRowWithIndexPath: will never be called.
Instead, you would need to use tableView:didSelectRowAtIndexPath:.
Aside:
This code is never going to work usefully as if cell is nil you can't call a method on it:
if (cell == nil) {
cell.textLabel.textColor = [UIColor whiteColor];
}

How to set separator of one section of tableView to clear

I have four sections in my tableView, and I want only the last section to have a clear separator. I know how to do this for the whole tableView, but cannot find any solution for my question. The only solution that I have thought of is to create the cell as an image in Photoshop and set that image as the cell background. Does anyone have an idea of how to do this without having to use Photoshop?
Try this one
In View didLoad
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
And
-(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];
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 1)];
view.backgroundColor = [UIColor greenColor];
view.tag = 101;
[cell addSubview:view];
}
if (indexPath.section == 0)
{
[[cell viewWithTag:101] setHidden:YES];
}
else if(indexPath.section == 1)
{
[[cell viewWithTag:101] setHidden:NO];
}
return cell;
}

UITableView if(cell == null) error

I have this problem with my code, I am trying to add textfields to my cells. And it worked! But when I tried again afterwards it didn't. I debugged a little with NSLog and came to the conclusion that cell wasn't = nil and therefore my code wasn't being run.
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"Called1");
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"Cell"];
cell.accessoryType = UITableViewCellAccessoryNone;
NSLog(#"Called?");
UITextField *playerTextField = [[UITextField alloc] initWithFrame:CGRectMake(110, 10, 185, 30)];
playerTextField.adjustsFontSizeToFitWidth = YES;
playerTextField.textColor = [UIColor blackColor];
if([indexPath row] == 0) {
playerTextField.placeholder = #"yoyo1";
playerTextField.keyboardType = UIKeyboardTypeDefault;
playerTextField.returnKeyType = UIReturnKeyNext;
} else {
playerTextField.placeholder = #"yoyo2";
playerTextField.keyboardType = UIKeyboardTypeDefault;
playerTextField.returnKeyType = UIReturnKeyDone;
playerTextField.secureTextEntry = YES;
}
playerTextField.backgroundColor = [UIColor whiteColor];
playerTextField.autocorrectionType = UITextAutocorrectionTypeNo;
playerTextField.autocapitalizationType = UITextAutocapitalizationTypeNone;
playerTextField.textAlignment = UITextAlignmentLeft;
playerTextField.tag = 0;
playerTextField.clearButtonMode = UITextFieldViewModeNever;
[playerTextField setEnabled: YES];
[cell.contentView addSubview:playerTextField];
}
return cell;
}
The code NSLog(#"Called?") doesn't get called, but NSLog(#"Called1") does. Why?
Thanks.
Just a little change:
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"Called1");
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"Cell"];
}
cell.accessoryType = UITableViewCellAccessoryNone;
NSLog(#"Called?");
//And then the rest of your cell configuration code...
Update your code to this, the way you initialize table cells is not correct.
[tableView dequeueReusableCellWithIdentifier:#"Cell"]; if this line returns non-nil your code will not correctly initialize the table cell. The logic is to get a new table cell by either dequeuing or re-using after you allocated a suitable table cell decorate it the same way.
-(UITableViewCell *)reuseTableViewCellWithIdentifier:(NSString *)identifier withIndexPath:(NSIndexPath *)indexPath{
UITableViewCell * cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier];
return cell;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"Called1");
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
if (cell == nil) {
cell = [self reuseTableViewCellWithIdentifier:#"Cell" withIndexPath:indexPath];
}
cell.accessoryType = UITableViewCellAccessoryNone;
NSLog(#"Called?");
UITextField *playerTextField = [[UITextField alloc] initWithFrame:CGRectMake(110, 10, 185, 30)];
playerTextField.adjustsFontSizeToFitWidth = YES;
playerTextField.textColor = [UIColor blackColor];
if([indexPath row] == 0) {
playerTextField.placeholder = #"yoyo1";
playerTextField.keyboardType = UIKeyboardTypeDefault;
playerTextField.returnKeyType = UIReturnKeyNext;
} else {
playerTextField.placeholder = #"yoyo2";
playerTextField.keyboardType = UIKeyboardTypeDefault;
playerTextField.returnKeyType = UIReturnKeyDone;
playerTextField.secureTextEntry = YES;
}
playerTextField.backgroundColor = [UIColor whiteColor];
playerTextField.autocorrectionType = UITextAutocorrectionTypeNo;
playerTextField.autocapitalizationType = UITextAutocapitalizationTypeNone;
playerTextField.textAlignment = UITextAlignmentLeft;
playerTextField.tag = 0;
playerTextField.clearButtonMode = UITextFieldViewModeNever;
[playerTextField setEnabled: YES];
[cell.contentView addSubview:playerTextField];
return cell;
}

UITableView Custom View still here even after reload

I made a very simply table view, with load more function.
I have added a custom view on the last cell with text "Load More"
After the user clicked the load more function, the rows increased successfully.
But the text "Load More" didn't disappear.
Please help.
Here is my code.
- (void)viewDidLoad {
[super viewDidLoad];
noRow = 10;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return noRow+1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (indexPath.row != noRow ) { // As long as we haven’t reached the +1 yet in the count, we populate the cell like normal
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Set up the cell...
NSString *cellValue = [[NSNumber numberWithInt:[indexPath row]] stringValue];
cell.text = cellValue;
} // Ok, all done for filling the normal cells, next we probaply reach the +1 index, which doesn’t contain anything yet
else if(indexPath.row == noRow ) { // Here we check if we reached the end of the index, so the +1 row
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
UILabel *loadMore;
loadMore =[[UILabel alloc]initWithFrame: CGRectMake(0,0,320,50)];
loadMore.textColor = [UIColor blackColor];
loadMore.highlightedTextColor = [UIColor darkGrayColor];
loadMore.backgroundColor = [UIColor clearColor];
loadMore.font=[UIFont fontWithName:#"Verdana" size:20];
loadMore.textAlignment=UITextAlignmentCenter;
loadMore.font=[UIFont boldSystemFontOfSize:20];
loadMore.text=#"Load More..";
[cell addSubview:loadMore];
}
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if(indexPath.row == noRow){
NSLog(#"noRow Prev: %d", noRow);
noRow += 5;
NSLog(#"noRow After: %d", noRow);
[self.tableView reloadData];
}else{
NSLog(#"IndexPath.row: %d", indexPath.row);
}
}
You are reusing the and you are not removing the view that you have added for load more
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
[[cell viewWithTag:121] removeFromSuperview];//remove this tag view
if (indexPath.row != noRow ) { // As long as we haven’t reached the +1 yet in the count, we populate the cell like normal
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
// Set up the cell...
NSString *cellValue = [[NSNumber numberWithInt:[indexPath row]] stringValue];
cell.text = cellValue;
} // Ok, all done for filling the normal cells, next we probaply reach the +1 index, which doesn’t contain anything yet
else if(indexPath.row == noRow ) { // Here we check if we reached the end of the index, so the +1 row
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
UILabel *loadMore;
loadMore =[[UILabel alloc]initWithFrame: CGRectMake(0,0,320,50)];
loadMore.textColor = [UIColor blackColor];
loadMore.highlightedTextColor = [UIColor darkGrayColor];
loadMore.backgroundColor = [UIColor clearColor];
loadMore.font=[UIFont fontWithName:#"Verdana" size:20];
loadMore.textAlignment=UITextAlignmentCenter;
loadMore.font=[UIFont boldSystemFontOfSize:20];
loadMore.text=#"Load More..";
loadMore.tag = 121;// just setting the tag
[cell addSubview:loadMore];
}
return cell;
}
you should add loadMore as a subview to cell.contentView not cell.
after that add this line in your cellForRow ..
for (UIView *view in [cell.contentView subviews])
{
[view removeFromSuperview];
}
Currently your load more is being reused and is present in subsequent cells if reused.