Actually i want to set button dynamically and title of button appear Dynamic i have try this and got width of Dynamic content but am not setting cell width and height.
- (void)viewDidLoad {
[super viewDidLoad];
ContentArray = [[NSMutableArray alloc]init];
self.collectionview.delegate = self;
self.collectionview.dataSource =self;
self.collectionview.backgroundColor = [UIColor clearColor];
[ContentArray addObject:@"Planning"];
[ContentArray addObject:@"Resources"];
[ContentArray addObject:@"Human Resources"];
[ContentArray addObject:@"Agriculture"];
[ContentArray addObject:@"Resources management"];
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return ContentArray.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
CollectionViewCell * Cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"CollectionViewCell"forIndexPath:indexPath];
[Cell.button setTitle:[ContentArray objectAtIndex:indexPath.row] forState:UIControlStateNormal];
return Cell;
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
CGRect rect = [[ContentArray objectAtIndex:indexPath.row ] boundingRectWithSize:CGSizeMake(HUGE_VALF, 50) options:NSStringDrawingUsesFontLeading attributes:nil context:nil] ;
return CGSizeMake(rect.size.width, 50);
}
and output is like this
This is perfect i think if i make cell dynamic width and height, so please guide me through this.
- (CGFloat)getTextHeightFromString:(NSString *)text ViewWidth:(CGFloat)width WithPading:(CGFloat)pading FontName:(NSString *)fontName AndFontSize:(CGFloat)fontSize
{
NSDictionary *attributes = @{NSFontAttributeName: [UIFont fontWithName:fontName size:fontSize]};
CGRect rect = [text boundingRectWithSize:CGSizeMake(width, MAXFLOAT)
options:NSStringDrawingUsesLineFragmentOrigin
attributes:attributes
context:nil];
//NSLog(@"rect.size.height: %f", rect.size.height);
return rect.size.height + pading;
}
Get height of the string from this method and add this to origional height of your cell or label or button whatever you want to use.
For example:
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
YourCellClass *myCell = (YourCellClass*) [collectionView cellForItemAtIndexPath:indexPath];
CGFloat sizeFromString = [self getTextHeightFromString:itemObject.MenuDescription ViewWidth:myCell.frame.size.width WithPading:10 FontName:@"HelveticaNeue" AndFontSize:13];
return CGSizeMake(sizeFromString, sizeFromString);
}
You might need to change the height of inner label too, for this use same method in cellForItemAtIndexPath
method of your UICollectionView
. Further more you can customize your own way.
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