UITableView content not displayed the very first time even after reloadData - ios

Question

I am trying to create an account page where user will be able to select his preferable language and voice. For this part of my app I was thinking to create 2 different UIButtons and once user has press one of them, a UITableView will appear on appropriate location tableFrame (something like drop down menu). Things were working great, initially, when I had just one array. Now, I have a general array that used from Table View delegate methods to load data and 2 other arrays that contain languages and voices.
My problem is that the very first time when I am tapping on any of the buttons, the table displays no content but numberOfRowsInSection returns correct value. Next, if tap on the same or the other button again .. everything is fine.
I believe the problem appears where I am, initially, initialise the general array with no object in viewDidLoad.
I have tried reloadData with now success.
Any ideas? Below my code:
Account.h
#import <Foundation/Foundation.h>
#interface AccountViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>{
NSMutableArray *content;
NSMutableArray *languages;
NSMutableArray *voices;
CGRect tableFrame;
}
#property (strong, nonatomic) IBOutlet UIButton *languageBtn;
#property (strong, nonatomic) IBOutlet UIButton *narratorBtn;
#property (strong, nonatomic) IBOutlet UITableView *contentTbl;
- (IBAction)selectLanguage:(id)sender;
- (IBAction)selectVoice:(id)sender;
#end
Account.m
- (void) viewDidLoad{
[super viewDidLoad];
content = [[NSMutableArray alloc] init];
languages = [[NSMutableArray alloc] initWithObjects:#"English", #"Ελληνικά", #"French", #"Spanish", #"Deutch", nil];
voices = [[NSMutableArray alloc] initWithObjects:#"English", #"US English", #"Ελληνικά", #"Spanish", nil];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [content count];
}
- (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];
}
cell.textLabel.text = [content objectAtIndex:indexPath.row];
return cell;
}
- (IBAction)selectLanguage:(id)sender{
if ([(UIButton *)sender tag] == 0) {
content = [languages copy];
tableFrame = CGRectMake(50, 173, 220, 203);
[self startAnimationAndDisplayTable:YES];
[(UIButton *)sender setTag:1];
} else{
[self startAnimationAndDisplayTable:NO];
[(UIButton *)sender setTag:0];
}
}
- (IBAction)selectVoice:(id)sender{
if ([(UIButton *)sender tag] == 0) {
content = [voices copy];
tableFrame = CGRectMake(50, 243, 220, 203);
[self startAnimationAndDisplayTable:YES];
[(UIButton *)sender setTag:1];
} else{
[self startAnimationAndDisplayTable:NO];
[(UIButton *)sender setTag:0];
}
}
- (void)startAnimationAndDisplayTable:(BOOL)show{
if (show) {
[self.contentTbl setHidden:NO];
[self.contentTbl setFrame:tableFrame];
[UIView beginAnimations:#"Fade In" context:nil];
[UIView setAnimationDuration:0.7];
[self.contentTbl setAlpha:1.0];
[UIView commitAnimations];
[self.contentTbl reloadData];
} else{
[UIView beginAnimations:#"Fade Out" context:nil];
[UIView setAnimationDuration:0.5];
[self.contentTbl setAlpha:0.0];
[UIView commitAnimations];
}
}
#end

Answer 1

"content" is an empty mutable array until you touch whatever (button?) action that calls the "selectLanguage" and "selectVoice" methods (and then you reassign the "content" variable).
I don't see any other manipulations of the "content" mutable array, so it's no wonder to me that nothing appears until you actually touch something.
You also do not show where you are calling "reloadData". "content" needs to have array entries in there for "reloadData" to work.