以行为主的瀑布流视图

源码简介

demo展示以行为主（row）的瀑布流样式视图，只支持ARC模式。

源码截图：

[[128131]]

源码片段：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    BDRowInfo *ri = [_rowInfos objectAtIndex:indexPath.row]; 
    static NSString *CellIdentifier = @"Cell"; 
    BDDynamicGridCell *cell = [tableView dequeueReusableCellWithIdentifier:[CellIdentifier stringByAppendingFormat:@"_viewCount%d", ri.viewsPerCell]]; 
      
    if (!cell) { 
        cell = [[BDDynamicGridCell alloc] initWithLayoutStyle:BDDynamicGridCellLayoutStyleFill 
                                              reuseIdentifier:CellIdentifier]; 
          
        cell.viewBorderWidth = 1; 
          
        UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(didLongPress:)]; 
        longPress.numberOfTouchesRequired = 1; 
        [cell.gridContainerView addGestureRecognizer:longPress]; 
          
        UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(didDoubleTap:)]; 
        doubleTap.numberOfTapsRequired = 2; 
        doubleTap.delaysTouchesBegan = YES; 
        [cell.gridContainerView addGestureRecognizer:doubleTap]; 
          
        UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(didSingleTap:)]; 
        singleTap.numberOfTapsRequired = 1; 
        singleTap.delaysTouchesBegan = YES; 
        [cell.gridContainerView addGestureRecognizer:singleTap]; 
        [singleTap requireGestureRecognizerToFail:doubleTap]; 
    } 
      
    //clear for updated list of views 
    [cell setViews:nil]; 
    cell.viewBorderWidth = self.borderWidth; 
    cell.backgroundColor = nil; 
  
    cell.rowInfo = ri; 
    NSArray * viewsForRow = [NSArray array]; 
    for (int i=0; i<ri.viewspercell; i++)="" {="" viewsforrow="[viewsForRow" arraybyaddingobject:[self.delegate="" viewatindex:i="" +="" ri.accumulatedviews="" rowinfo:ri]];="" }="" nsassert(viewsforrow.count=""> 0, @"number of views per row must be greater than 0"); 
    [cell setViews:viewsForRow]; 
      
    return cell; 
}</ri.viewspercell;> 

源码链接：http://down.51cto.com/data/1984619