UITableViewCell mit alternativer Hintergrundfarbe in individuellen Zellen

Ich würde gerne den hintergrund meiner UITableViewCells haben eine andere Farbe jede zwei Zellen angezeigt, aber wenn ich scrolle nach unten und zurück, die Sie alle bekommen die gleiche Farbe. Wie bekomme ich diesen Effekt, wohl wissend, dass meine Zellen haben unterschiedliche contentView Größe (nach Ihrem Inhalt) ?

#define FONT_SIZE 14.0f
#define CELL_CONTENT_WIDTH 320.0f
#define CELL_CONTENT_MARGIN 20.0f
#define NAME_CELL_HEIGHT 20.0f
#import "CartCell.h"
@implementation CartCell
@synthesize nameLabel = _nameLabel;
@synthesize ingredientsLabel = _ingredientsLabel;
@synthesize myStore;
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
myStore = [Store sharedStore];
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
self.nameLabel = nil;
self.ingredientsLabel = nil;
//SET "NAME" CELL
self.nameLabel = [[UILabel alloc] initWithFrame:CGRectZero];
[self.nameLabel setLineBreakMode:UILineBreakModeWordWrap];
[self.nameLabel setMinimumFontSize:FONT_SIZE];
[self.nameLabel setNumberOfLines:1];
[self.nameLabel setTag:1];
self.nameLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:18];
[self.nameLabel sizeToFit];
self.nameLabel.backgroundColor = [UIColor clearColor];
[[self contentView] addSubview:self.nameLabel];
//SET "INGREDIENTS" CELL
self.ingredientsLabel = [[UILabel alloc] initWithFrame:CGRectZero];
[self.ingredientsLabel setLineBreakMode:UILineBreakModeWordWrap];
[self.ingredientsLabel setMinimumFontSize:FONT_SIZE];
[self.ingredientsLabel setNumberOfLines:0];
[self.ingredientsLabel setFont:[UIFont systemFontOfSize:FONT_SIZE]];
[self.ingredientsLabel setTag:2];
self.ingredientsLabel.backgroundColor = [UIColor clearColor];
[[self contentView] addSubview:self.ingredientsLabel];
if (myStore.cellBackgroundShouldBeLight == YES) {
NSLog(@"clear [in] ? %@", myStore.cellBackgroundShouldBeLight ? @"Yes" : @"No");
self.contentView.backgroundColor = [[UIColor alloc]initWithRed:87.0/255.0 green:168.0/255.0 blue:229.0/255.0 alpha:1];
myStore.cellBackgroundShouldBeLight = NO;
} else {
NSLog(@"clear [in] ? %@", myStore.cellBackgroundShouldBeLight ? @"Yes" : @"No");
self.contentView.backgroundColor = [[UIColor alloc]initWithRed:187.0/255.0 green:268.0/255.0 blue:229.0/255.0 alpha:1];
myStore.cellBackgroundShouldBeLight = YES;
}
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
//Configure the view for the selected state
}
@end

UPDATE:

Ich bin, wissen Sie versuchen, es in cellForRowAtIndexPath, wie es vorgeschlagen wurde, aber ich bekomme das gleiche Ergebnis: scrollen nach unten geklappt, das erste mal, aber dann scrollen bis wieder Durcheinander, die Zellen-Hintergrundfarbe.

- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"CartCell";
CartCell *cell = (CartCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
Recipes *info = [_fetchedResultsController objectAtIndexPath:indexPath];
if (cell == nil) 
{
cell = [[CartCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
//   if (!cell.nameLabel) {
//       cell.nameLabel = (UILabel*)[cell viewWithTag:1];
//       //       cell.nameLabel = (UILabel*)[cell viewWithTag:1];
//   }
//   if (!cell.ingredientsLabel)
//       cell.ingredientsLabel = (UILabel*)[cell viewWithTag:2];
CGSize constraint = CGSizeMake(CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), 20000.0f);
CGSize size = [info.ingredients sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];
[cell.nameLabel setFrame:CGRectMake(10, 10, CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), NAME_CELL_HEIGHT)];
[cell.ingredientsLabel setFrame:CGRectMake(CELL_CONTENT_MARGIN, CELL_CONTENT_MARGIN + NAME_CELL_HEIGHT, CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN * 2), MAX(size.height, 44.0f))];
//SETTING TEXT CONTENT
cell.nameLabel.text = info.name;
cell.ingredientsLabel.text = info.ingredients;
//SETTING BACKGROUND COLOR
//       UIView *lab = [[UIView alloc] initWithFrame:cell.frame];
//       [lab setBackgroundColor:[UIColor blueColor]];
if (myStore.cellBackgroundShouldBeLight == YES) {
NSLog(@"clear? %@", myStore.cellBackgroundShouldBeLight ? @"Yes" : @"No");
cell.contentView.backgroundColor = [[UIColor alloc]initWithRed:87.0/255.0 green:84.0/255.0 blue:229.0/255.0 alpha:1];
//           cell.backgroundView = lab;
//           ingredientsLabel.backgroundColor = [UIColor clearColor];
//           nameLabel.backgroundColor = [[UIColor alloc]initWithRed:87.0/255.0 green:168.0/255.0 blue:229.0/255.0 alpha:1];
//           [cell setBackgroundColor: [[UIColor alloc]initWithRed:87.0/255.0 green:168.0/255.0 blue:229.0/255.0 alpha:1]];
//           [cell setBackgroundColor:[UIColor colorWithRed:.8 green:.8 blue:1 alpha:1]];
myStore.cellBackgroundShouldBeLight = NO;
} else {
//       cell.contentView.tag = 2;
NSLog(@"clear? %@", myStore.cellBackgroundShouldBeLight ? @"Yes" : @"No");
cell.contentView.backgroundColor = [[UIColor alloc]initWithRed:187.0/255.0 green:184.0/255.0 blue:229.0/255.0 alpha:1];
myStore.cellBackgroundShouldBeLight = YES;
}
return cell;
}
InformationsquelleAutor DevonDahon | 2012-06-23
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