UICollectionViewCell問題調用方法

Question

我只是試圖調用方法與自定義UICollectionViewCell和它與SIGABRT

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath 
{ 
    if([_leaderboardDictionary count] > 0 && indexPath.row == 0) 
    { 
     return [self insertLeaderBoardCellAtIndexPath:indexPath]; 
    } 
    else 
    { 
     return [self insertDetailGraphicCellAtIndexPath:indexPath]; 
    } 
} 

-(CampaignDetailGraphic2Cell *)insertDetailGraphicCellAtIndexPath:(NSIndexPath *)indexPath 
{ 
    CampaignDetailGraphic2Cell *cell = (CampaignDetailGraphic2Cell *)[_topCollectionView dequeueReusableCellWithReuseIdentifier:@"detailWebCell" forIndexPath:indexPath]; 
    if(cell == nil) 
    { 
     if(is3_5Inches) 
     { 
      cell = [[CampaignDetailGraphic2Cell alloc] initWithFrame:CGRectMake(0, 0, 300, 172)]; 
     } 
     else 
     if(is4Inches) 
     { 
      cell = [[CampaignDetailGraphic2Cell alloc] initWithFrame:CGRectMake(0, 0, 300, 220)]; 
     } 
     else 
     if(isIphone6) 
     { 
      cell = [[CampaignDetailGraphic2Cell alloc] initWithFrame:CGRectMake(0, 0, 355, 290)]; 
     } 
     else 
     if(isIphone6Plus) 
     { 
      cell = [[CampaignDetailGraphic2Cell alloc] initWithFrame:CGRectMake(0, 0, 394, 356)]; 
     } 
    } 

    [cell setupCell]; 

崩潰......

}

這個方法我CampaignDetailGraphic2Cell中存在類。

任何想法如何我可以調用方法和設置單元格的屬性...？

Answer 1

您不應使用alloc init創建UICollectionViewCells。您需要在設置集合並註銷單元時註冊類或nib文件。一旦你這樣做，你可以調用你的細胞的方法。

即

[self.collectionView registerClass:[CampaignDetailGraphic2Cell class] forCellWithReuseIdentifier:@"CampaignCell"]; 

然後

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath 
{ 
    CampaignDetailGraphic2Cell* cell = (CampaignDetailGraphic2Cell*)[collectionView dequeueReusableCellWithReuseIdentifier:@"CampaignCell" forIndexPath:indexPath]; 
    ... 
    return cell; 
}