sebastienwindal

-(void) action:(UIButton *)sender
{
    CGRect buttonFrame = [sender convertRect:sender.bounds toView:self.tableView];
    
    NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:buttonFrame.origin];
    
    ...
}

sebastienwindal

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    cell.backgroundColor = [UIColor clearColor];
}

sebastienwindal

for (NSString *familyName in [UIFont familyNames]) {
    for (NSString *fontName in [UIFont fontNamesForFamilyName:familyName]) {
        NSLog(@"%@", fontName);
    }
}

sebastienwindal

- (void)observeKeyboard
{
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillChangeFrameNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}

- (void)stopObservingKeyboard
{
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillChangeFrameNotification object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];

sebastienwindal

// .h file

@interface LessonManager : NSObject

@property (strong, nonatomic) NSString * imageTitle;

+ (instancetype) sharedInstance;

@end

sebastienwindal

/*
     File: UIImage+ImageEffects.h
 Abstract: This is a category of UIImage that adds methods to apply blur and tint effects to an image. This is the code you’ll want to look out to find out how to use vImage to efficiently calculate a blur.
  Version: 1.0
 
 Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
 Inc. ("Apple") in consideration of your agreement to the following
 terms, and your use, installation, modification or redistribution of
 this Apple software constitutes acceptance of these terms.  If you do
 not agree with these terms, please do not use, install, modify or

sebastienwindal

/*
     File: UIImage+ImageEffects.m
 Abstract: This is a category of UIImage that adds methods to apply blur and tint effects to an image. This is the code you’ll want to look out to find out how to use vImage to efficiently calculate a blur.
  Version: 1.0
 
 Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
 Inc. ("Apple") in consideration of your agreement to the following
 terms, and your use, installation, modification or redistribution of
 this Apple software constitutes acceptance of these terms.  If you do
 not agree with these terms, please do not use, install, modify or

sebastienwindal

self.myConstraint.constant = 1234;
[UIView animateWithDuration:0.3 animations:^{
    [self.someview layoutIfNeeded];
}];

sebastienwindal

// delete all placeholder meal logs older than a certain date 
NSPredicate *oldPlaceholderPredicate = [NSPredicate predicateWithFormat:@"(isPlaceholderMealLog = TRUE) AND (eatenOn < %@)", twoDaysAgoAtMidnight];
[MealLogManaged MR_deleteAllMatchingPredicate:oldPlaceholderPredicate inContext:context];

sebastienwindal

YapDatabaseViewGroupingWithObjectBlock groupingBlock = ^NSString *(NSString *collection, NSString *key, id object) {
    if (![object isKindOfClass:[MealLogRemote class]]) {
        return nil;
    }
    return "all"; // we only need one section/group in this case
};

YapDatabaseViewSortingWithObjectBlock sortingBlock = ^NSComparisonResult (NSString *group, NSString *collection1, NSString *key1, MealLogRemote *obj1,
                                    NSString *collection2, NSString *key2, MealLogRemote *obj2){
    // we don't need sorting but this using a sorting for a view is mandatory, lets sort it by date