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POUIButton is 0x0000 when reload TableView in ios
 

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  1. POUIButton is 0x0000 when reload TableView in ios
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    <p>I added UIButton to each uitableview row but when i nedd reloadData, uibutton is 0x0000. Can you give me any suggestions? Thanks much. I used this code:</p> <pre><code> - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { /*NSString *CellIdentifier = [NSString stringWithFormat:@"%d,%d",indexPath.section,indexPath.row]; // NSString *CellIdentifier = @"cell"; UITableViewCell *cell = [_tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) {*/ NSString *CellIdentifier = [NSString stringWithFormat:@"%d,%d",indexPath.section,indexPath.row]; UITableViewCell *cell = [_tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; 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 * market = [[UIButton alloc] init];; [market setFrame:CGRectMake(200, 6, 30, 30)]; market.tag = 4000; [market addTarget:self action:@selector(marketPressedAction:) forControlEvents:UIControlEventTouchDown]; // [market setTag:indexPath.row]; [cell.contentView addSubview:market]; } if([priceNewArray count]&gt; 0) { UILabel *pricelbl = (UILabel*)[cell.contentView viewWithTag:3000]; pricelbl.text =[NSString stringWithFormat:@"$%@",[priceNewArray objectAtIndex:indexPath.row]]; if ([sellingArray count]&gt;0) { if([[sellingArray objectAtIndex:indexPath.row] isEqualToString:@"2"]){ pricelbl.hidden = NO; } else if([[sellingArray objectAtIndex:indexPath.row] isEqualToString:@"0"]){ pricelbl.hidden = YES; } } } UIButton *marketButton = (UIButton*)[cell.contentView viewWithTag:4000]; [marketButton setTag:indexPath.row]; if([sellingArray count]&gt;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; } } _tableView.contentInset = UIEdgeInsetsMake(0, 0, 100, 0); return cell; } </code></pre> <p>I used above code, when reloadData, data of Price label is changed fine but marketbutton can not changed image. I debug after call <code>[_tableview reloadData];</code>, marketButton is <strong>0x0000</strong> . </p>
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. USThoa Huynh
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    2. PO
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    1. This table or related slice is empty.
    1. COWhy are you using a different cell identifier for each row? You're losing the benefit of cell recycling. Where and how are you checking the value that you say is nil?
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      1. POUIButton is 0x0000 when reload TableView in ios
      1. USAbizern
    2. CO@Abizern: can you example code ? I'm a newbie. Thanks much
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      1. POUIButton is 0x0000 when reload TableView in ios
      1. USThoa Huynh
    3. CONot sample code but a hint. It's a lot easier to design your custom cells on the Storyboard and add UI elements there rather than trying to do it in code.
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      1. POUIButton is 0x0000 when reload TableView in ios
      1. USAbizern
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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