[英]collection view cell display not displaying
我有一个collectionview控制器和一个collectionviewcell。 对于collectionviewcell,我有一个自定义类。 我正在尝试设置uiimage,但它不起作用。
先感谢您!。
我正在尝试设置图像的collectionview控制器中的方法。
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
static NSString *cellIdentifier=@"Cell";
CollectionVIewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
;
CollectionVIewCell *feederCell = (CollectionVIewCell*)[_availableFilters objectAtIndex:indexPath.row];
cell.labelDisplay.text=feederCell.filterName;
NSLog(@"selected =%@",cell.labelDisplay.text);
if (feederCell.isSelected) {
UIImageView *imageView=[[UIImageView alloc]init];
//process string name
NSString*filePath =[NSString stringWithFormat:@"%@.png",feederCell.filterName];
NSArray* words = [filePath componentsSeparatedByCharactersInSet :[NSCharacterSet whitespaceCharacterSet]];
filePath=[words componentsJoinedByString:@""];
cell.FilePath=filePath;
//image
UIImage *image = [UIImage imageNamed:filePath];
[imageView setFrame:CGRectMake(0, 0, image.size.width, image.size.height)];
[imageView setImage:image];
[cell setIconDisplay:imageView];//setting the image that won't set
}else if(!feederCell.isSelected){
UIImageView *imageView=[[UIImageView alloc]init];
NSString*filePath =[NSString stringWithFormat:@"%@.png",feederCell.filterName];
NSArray* words = [filePath componentsSeparatedByCharactersInSet :[NSCharacterSet whitespaceCharacterSet]];
filePath=[words componentsJoinedByString:@""];
UIImage *image = [UIImage imageNamed:filePath];
[imageView setFrame:CGRectMake(0, 0, image.size.width, image.size.height)];
[imageView setImage:image];
[cell setIconDisplay:imageView];
}
return cell;
.h文件
//
// CollectionVIewCell.h
#import <UIKit/UIKit.h>
@interface CollectionVIewCell : UICollectionViewCell
@property (strong, nonatomic) IBOutlet UIImageView *IconDisplay;
@property (strong, nonatomic) IBOutlet UILabel *labelDisplay;
@property (assign,nonatomic) BOOL isSelected;
@property (strong,nonatomic)NSString*textName;
@property(strong,nonatomic)NSString*FilePath;
@end
.m文件
//
// CollectionVIewCell.m
#import "CollectionVIewCell.h"
@implementation CollectionVIewCell
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
_labelDisplay.text=_textName;
_IconDisplay=[[UIImageView alloc]init];
}
return self;
}
@end
您需要将UIImageView添加为子视图。 否则它存在但不显示。
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