PFQueryTableView内存

Question

我一直在处理PFQueryTableView图像和文字.实现此代码后:

-  (id)initWithCoder:(NSCoder *)aDecoder {
     self = [super initWithClassName:@"Story"];
     self = [super initWithCoder:aDecoder];
   if (self) { // This table displays items in the Todo class
       self.parseClassName = @"Story";
       self.pullToRefreshEnabled = YES;
       self.paginationEnabled = YES;
       self.objectsPerPage = 25;
   }
  return self;
 }

- (PFQuery *)queryForTable {
PFQuery *query = [PFQuery queryWithClassName:self.parseClassName];

if (self.objects.count == 0) {
    query.cachePolicy = kPFCachePolicyCacheThenNetwork;
}
[query orderByDescending:@"createdAt"];


return query;
 }


 - (UITableViewCell *)tableView:(UITableView *)tableView
     cellForRowAtIndexPath:(NSIndexPath *)indexPath
                    object:(PFObject *)object {
static NSString *cellIdentifier = @"cell";

PFTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (!cell) {
    cell = [[PFTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
                                  reuseIdentifier:cellIdentifier];
}

// Configure the cell to show todo item with a priority at the bottom
cell.textLabel.text = object[@"snapDetails"];

PFFile *thumbnail = [object objectForKey:@"snap"];
cell.imageView.image = [UIImage imageNamed:@"placeholder.jpg"];
cell.imageView.file = thumbnail;
return cell;
}

日志给了我这个奇怪的警告:

[/BuildRoot/Library/Caches/com.apple.xbs/Sources/CoreUI/CoreUI-
371.4/Bom/Storage/BOMStorage.c:522]不是BOMStorage文件

以及定期记忆警告.有时,该应用程序也会崩溃并XCode显示一条消息,声称它已丢失与我的连接iPhone.当检查内存使用情况时,随着表的上升或下降,内存会继续增加,就好像图像(屏幕大小)在屏幕上不会被释放一样.关于可能发生什么的任何想法？

Answer 1

几乎在所有情况下，除非您的网址错误，否则这是无害的。要使 BOMStorage 文件更严重，您可以添加以下内容：

urlString = [urlString stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

另外，您还可以选择其他方法来替换：

[image stretchableImageWithLeftCapWidth:0 topCapHeight:0]  forState:UIControlStateNormal]