iOS: UICollectionViewcell里面的图片不能加载

Question

跟实例基本差不多，但每次都显示image对象为nil，请问大神哪里有问题？

//

// ViewController.m
// PhotoViewer
//
// Created by yonzhang on 13-10-13.
// Copyright (c) 2013年 yonzhang. All rights reserved.
//

#import "ViewController.h"
#import "ImageCell.h"

@interface ViewController ()
@property NSMutableArray *photoArray;

@end

@implementation ViewController

• (void)viewDidLoad
  {
  [super viewDidLoad];
  // self.collectionView
  self.collectionview.delegate = self;
  self.collectionview.dataSource = self;
  [self.collectionview registerClass: [ImageCell class] forCellWithReuseIdentifier:@"Cell"];
  // self.collectionview.dataSource = self;
  // Do any additional setup after loading the view, typically from a nib.
  }

• (void)didReceiveMemoryWarning
  {
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
  }

#pragma Collection View Data Souce

• (NSInteger) numberOfSectionsInCollectionView:(UICollectionView *)collectionView
  {
  return 1;
  }

• (NSInteger) collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
  {
  return 1;
  }

-(UICollectionViewCell *) collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
ImageCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];
// UIImage *testImage = [UIImage imageNamed:@"4.JPG"];
cell.image.image = [UIImage imageNamed:@"4.JPG"];
return cell;
}

#pragma custommethod

@end

Answer 1

你的cell.image应该是UIImageView吧 如果是UIImageView的话，先把你的名称改了，image太特殊了，容易与系统命名重名，这句demo我感觉你应该用SDWebimage cell.image = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"4.JPG"]];