我创建了一个tableview有按钮，这个按钮已经改变了图像屁股不同的条件。第一次加载tableview，这些按钮设置图像正确，但条件改变后，设置图像不正确。示例：如果 [Selling = 0] ，设置图像“Market.png”，否则 [Selling =2]，设置图像“MarketSelect.png”。当 Selling 数组的值发生变化时，我使用了 [_tableview reloadData] 但它仍然没有改变图像。我调试，我看到 MarketButton 是 0x0000。第一次加载，MarketButton 工作正常，但第二次加载，它是 0x0000。请给我建议来解决这个问题。我尝试了 2 天，但它无法正常工作。非常感谢
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (nil == cell) {
cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.button.tag = indexPath.row;
UIButton *market = [UIButton buttonWithType:UIButtonTypeCustom];
[market setFrame:CGRectMake(200, 6, 30, 30)];
market.tag = 4000;
[market addTarget:self action:@selector(marketPressedAction:) forControlEvents:UIControlEventTouchDown];
[cell.contentView addSubview:market];
UILabel *pricelabel = [[UILabel alloc] initWithFrame:CGRectMake(80, 0, 80, 30)];
pricelabel.backgroundColor = [UIColor clearColor];
pricelabel.font = [UIFont fontWithName:@"Helvetica" size:16];
pricelabel.font = [UIFont boldSystemFontOfSize:16];
pricelabel.textColor = [UIColor darkGrayColor];
pricelabel.tag = 3000;
//pricelabel.hidden = YES;
pricelabel.textAlignment = NSTextAlignmentRight;
[cell.contentView addSubview: pricelabel];
[pricelabel release];
}
UIButton *marketButton = (UIButton*)[cell.contentView viewWithTag:4000];
[marketButton setTag:indexPath.row];
if([sellingArray count]>0)
{
NSLog(@"sellingArray %@",sellingArray);
if([[sellingArray objectAtIndex:indexPath.row] isEqualToString:@"0"]) // nothing
{
[marketButton setSelected:NO];
[marketButton setImage:[UIImage imageNamed:@"Marketplace.png"] forState:UIControlStateNormal];
marketButton.enabled = YES;
}
else if([[sellingArray objectAtIndex:indexPath.row] isEqualToString:@"2"]) // marketplace
{
[marketButton setSelected:YES];
[marketButton setImage:[UIImage imageNamed:@"MarketplaceSelect.png"] forState:UIControlStateNormal];
marketButton.enabled = YES;
}
}
}
UILabel *pricelbl = (UILabel*)[cell.contentView viewWithTag:3000];
pricelbl.text =[NSString stringWithFormat:@"$%@",[priceNewArray objectAtIndex:indexPath.row]];
if ([sellingArray count]>0) {
if([[sellingArray objectAtIndex:indexPath.row] isEqualToString:@"2"]){
pricelbl.hidden = NO;
}
else if([[sellingArray objectAtIndex:indexPath.row] isEqualToString:@"0"]){
pricelbl.hidden = YES;
}
}
return cell;
}
市场新闻行动：
- (void)marketPressedAction:(id)sender
{
buttonPressed = (UIButton *)sender;
buttontag = buttonPressed.tag;
NSLog(@"Market button click at row %d",buttontag);
}