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POiPhone - Button getting dissappeard
 

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  1. POiPhone - Button getting dissappeard
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    <p>I am having a table view . On a cell I am adding a button ( UIButton customButton ). But sometimes that button disappears. I checked the whole code , nowhere I am modifying the button properties. I have also retained the button . Actually button is still there but not visible. If I click on buttons location the call back function on button gets called. I don't know what's going wrong. I have checking this from 2 days but didn't find any bug. I am pasting below the code for that. If anyone has faced this issue , please help me !!!</p> <pre><code> logOutBtn = [UIButton buttonWithType:UIButtonTypeCustom]; [logOutBtn setImage:[UIImage imageNamed:@"BLUE.png"] forState:UIControlStateNormal]; [logOutBtn setFrame:CGRectMake(100, 2, 100, 35)]; [logOutBtn addTarget:self action:@selector(SignOut) forControlEvents:UIControlEventTouchUpInside]; [logOutBtn retain]; </code></pre> <p>Adding the complete code.</p> <pre><code> - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 3; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. switch (section) { case 0: return 1; break; case 1: return 4; break; case 2: return 1; break; } return 0; </code></pre> <p>}</p> <pre><code> - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.section == 0) { return 90; } return 50; } </code></pre> <p>// Customize the appearance of table view cells.</p> <pre><code> - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSString *CellIdentifier = [NSString stringWithFormat:@"%d%d",indexPath.section,indexPath.row]; int newCellFlag = 0; UITableViewCell *cell; UILabel * titleLabel; UIImageView * logoView; UIButton * infoBtn; // Configure the cell... switch (indexPath.section) { case 0: //add the custom button for cities cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { newCellFlag = 1; cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; } if (newCellFlag == 1) { if (indexPath.row==0) { /*cell.textLabel.textAlignment = UITextAlignmentCenter; cell.textLabel.text = @"My city subscriptions";*/ cell.selectionStyle = UITableViewCellSelectionStyleNone; logoView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"logo.png"]]; logoView.frame = CGRectMake(5, 0, 295, 80); [cell.contentView addSubview:logoView]; [logoView release]; infoBtn = [UIButton buttonWithType:UIButtonTypeInfoDark]; infoBtn.frame = CGRectMake(270, 75, 15, 15); [cell.contentView addSubview:infoBtn]; [infoBtn addTarget:self action:@selector(infoView:) forControlEvents:UIControlEventTouchUpInside]; } if (indexPath.row ==1) { cell.detailTextLabel.textAlignment = UITextAlignmentCenter; cell.detailTextLabel.textColor = [UIColor orangeColor]; cell.selectionStyle = UITableViewCellSelectionStyleNone; cell.detailTextLabel.text = @"Add cities"; //[cell.contentView addSubview:_AddCitiesButton]; } } break; case 1: cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { newCellFlag = 1 ; cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease]; } //add the custom button for cities if (newCellFlag == 1) { if (indexPath.row ==0) { cell.textLabel.text = @"User name"; cell.detailTextLabel.text =[[NSUserDefaults standardUserDefaults] objectForKey:@"user_name"]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } if (indexPath.row ==1) { cell.textLabel.text = @"Credits left"; cell.detailTextLabel.text = (connected ? [NSString stringWithFormat:@"$ %@",[self getUserMoney]] : @"Not Available."); cell.selectionStyle = UITableViewCellSelectionStyleNone; //[cell.contentView addSubview:_creditsLabel]; } if (indexPath.row ==2) { cell.textLabel.text = @"Current City"; cell.detailTextLabel.text = [[NSUserDefaults standardUserDefaults]objectForKey:@"current_city_name"]; cell.selectionStyle = UITableViewCellSelectionStyleNone; //[cell.contentView addSubview:_currentCity]; } if (indexPath.row == 3) { /* titleLabel = [[UILabel alloc]initWithFrame:CGRectMake(100, 5, 100, 35)]; titleLabel.text = @"Log out"; titleLabel.backgroundColor = [UIColor clearColor]; titleLabel.textColor = [UIColor purpleColor]; titleLabel.font = [UIFont fontWithName:@"Verdana" size:15.5]; titleLabel.font = [UIFont boldSystemFontOfSize:15.5]; [cell.contentView addSubview:titleLabel]; [titleLabel release]; */ [cell.contentView addSubview:logOutBtn]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } } break; case 2: //add the custom button for cities cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { newCellFlag = 1; cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease]; } if (newCellFlag ==1 ) { cell.textLabel.text = @"App Version"; cell.detailTextLabel.text = @"1.0"; cell.selectionStyle = UITableViewCellSelectionStyleNone; } break; default: break; } if(newCellFlag == 1) { if (indexPath.section == 0) { CommonBG * bg = [[CommonBG alloc]initWithFrame:cell.bounds]; cell.backgroundView = bg; cell.backgroundView.alpha = 0.0;//[UIColor clearColor]; [bg release]; } else { CommonBG * bg = [[CommonBG alloc]initWithFrame:cell.bounds]; cell.backgroundView = bg; [bg release]; cell.textLabel.backgroundColor = [UIColor clearColor]; cell.detailTextLabel.backgroundColor = [UIColor clearColor]; cell.layer.cornerRadius = 10; } } return cell; } </code></pre>
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    1. PTQuestion
    1. USBharat Jagtap
    1. USBharat Jagtap
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    2. PO
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    1. COCan you post the code of the cell creation ? UITableView use a deque to reuse cells which are not displayed maybe the core of your problem is here
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      1. POiPhone - Button getting dissappeard
      1. USmartiall
    2. COshow code of all methods of tableview.
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      1. POiPhone - Button getting dissappeard
      1. USRakesh Bhatt
    3. CO@RakeshBhatt , I have edited the question to add the complete code .
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      1. POiPhone - Button getting dissappeard
      1. USBharat Jagtap
 

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