On iPhoneX, the layout of the UICollectionView is out of alignment.

I have a problem with iPhoneX layout.

The app we are currently developing has not added LaunchScreenImage (1124x2436, 2436x1124) for iPhone X.
I expect the iPhone X to have the same layout as the 4.7 inch screen (iPhone 6/7/8) up and down.

One feature uses a UICollectionView with six elements in a horizontal row at the top of the screen.

This UICollectionView is
·On the 4.7 inch screen (iPhone 6/7/8) it will be displayed as intended. 6 UICollectionViewCell will be displayed side by side
On the other hand
·On iPhoneX, it becomes two lines and the first line becomes empty. You can scroll vertically

The code looks like the following (no storyboard)

View Controller.m

 - (void) loadView
{
    self.view = [[FirstView alloc] init];
}

FirstView.m

-(id)init
{
    self=[super init];
    if(self){
        self.backgroundColor=UIColor.whiteColor;

        [self initGridView];
    }
    return self;
}

- (void) initGridView
{
    _gridView = [[GridView alloc] init];

    [self addSubview:_gridView];
}

- (void) layoutSubviews
{
    super layoutSubviews;

    [self layoutGridView];
}

- (void) layoutGridView
{
    CGSize parentSize=_gridView.superview.frame.size;

    _gridView.frame = CGRectMake(0,0, parentSize.width,48);
}

GridView.m

-(id)init
{
    self=[super initWithFrame: CGRectZero collectionViewLayout:[[UICollectionViewFlowLayout alloc]init]];
    if(self){
        self.delegate=self;
        self.dataSource=self;

        [self registerClass: [UICollectionViewCell class] forCellWithReuseIdentifier: NSSstringFromClass ([UICollectionViewCell class]);

        self.backgroundColor=UIColor.grayColor;
    }

    return self;
}

#pragma mark-
# pragma mark UICollectionViewDataSource

- (UICollectionViewCell*) collectionView: (UICollectionView*) collectionView cellForItemAtIndexPath: (nonnull NSIndexPath*) indexPath
{
    NSSstring* cellName = NSSstringFromClass ([UICollectionViewCell class]);
    UICollectionViewCell*cell= [collectionView requestReusableCellWithReuseIdentifier:cellName forIndexPath:indexPath];

    if(indexPath.row%2==0){
        cell.contentView.backgroundColor=UIColor.blueColor;
    }
    else{
        cell.contentView.backgroundColor=UIColor.orangeColor;
    }

    return cell;
}

- (NSInteger) collectionView: (UICollectionView*) collectionView numberOfItemsInSection: (NSInteger) section
{
    return6;
}

- (CGSize) collectionView: (UICollectionView*) collectionViewLayout: (UICollectionViewLayout*) collectionViewLayout sizeForItemAtIndexPath: (NSIndexPath*) indexPath
{
    CGSize selfSize=self.frame.size;
    CGFloat width = selfSize.width/6;

    return CGSizeMake (width,48);
}

- (CGFloat) collectionView: (UICollectionView*) collectionViewLayout: (UICollectionViewLayout*) collectionViewLayout minimumLineSpacingForSectionAtIndex: (NSInteger) section
{
    return 0;
}

- (CGFloat) collectionView: (UICollectionView*) collectionViewLayout: (UICollectionViewLayout*) collectionViewLayout minimumInteritemSpacingForSectionAtIndex: (NSInteger) section
{
    return 0;
}

Under the following conditions, we would like to display the elements of the above UICollectionView perfectly in the horizontal line.

Language does not use Objective-C.storyboard
Supported iOS is "9.3" or higher
iPhoneX displays a 4.7 inch screen layout (because LaunchImage for iPhoneX is not added, there are many functions and screens of the app, and it is difficult to handle all screens due to schedule)

Please let me know if there is a good way. Thank you.

ios uicollectionview uicollectionviewcell iphone-x

2022-09-30 11:55

1 Answers

I'm sorry to ask you a question myself, but
The solution was solved by the following method, so I will write down the method.

init() in GridView.m set the following properties.

if(@available(iOS11,*)){
        self.contentInsetAdjustmentBehavior=UIScrollViewContentInsetAdjustmentNever;
    }

2022-09-30 11:55

If you have any answers or tips

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656