如何在兩個不同部分的兩個不同的NSMutableArray中顯示單元格中的內容（兩個標籤和一個圖像視圖）。

Question

我想解析xml並在表格單元格中顯示標題，描述和圖像。

我做了下面的代碼，但如果圖像不可用，那麼垃圾圖像也顯示在單元格上。

我做了隱藏它的代碼，但圖像視圖沒有隱藏。

我設立幀零個值，但與垃圾的圖片視圖顯示：

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 
    // Return the number of sections. 
    return 2; 
} 


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 
    // Return the number of rows in the section. 
    appDelegate = (AppDelegate_iPhone *) [[UIApplication sharedApplication] delegate]; 

    if (section == 0) { 
     return [appDelegate.TrendDataArray count]; 
    }else { 
     return [appDelegate.MyDataArray count]; 
    } 

} 


- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section 

{ 

    if(section == 0) 

     return @" Trending "; 

    else 

     return @" Live Feeds "; 

} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

    UILabel *lblTitle; 
    UILabel *lbldescription; 
    UIImageView *imgViewTemp; 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 

     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; 
     cell.selectionStyle = UITableViewCellSelectionStyleNone; 

     lblTitle = [[UILabel alloc] initWithFrame:CGRectZero]; 
     [lblTitle setLineBreakMode:UILineBreakModeWordWrap]; 
     [lblTitle setNumberOfLines:2]; 
     lblTitle.textAlignment= UITextAlignmentLeft; 
     [lblTitle setFont:[UIFont fontWithName:@"Helvetica-Bold" size:FONT]]; 
     lblTitle.textColor=[UIColor blackColor]; 
     [lblTitle setTag:1]; 

     lbldescription = [[UILabel alloc] initWithFrame:CGRectZero]; 
     [lbldescription setLineBreakMode:UILineBreakModeWordWrap]; 
     [lbldescription setNumberOfLines:3]; 
     lbldescription.textAlignment= UITextAlignmentLeft; 
     [lbldescription setFont:[UIFont fontWithName:@"Helvetica" size:FONT2]]; 
     lbldescription.textColor=[UIColor grayColor]; 
     [lbldescription sizeToFit]; 
     [lbldescription setTag:2]; 

     imgViewTemp = [[UIImageView alloc] initWithFrame:CGRectZero]; 
     [imgViewTemp setTag:3]; 


     [cell.contentView addSubview:lblTitle]; 
     [cell.contentView addSubview:lbldescription]; 

     //[imgViewTemp release]; 
     [lblTitle release]; 
     [lbldescription release]; 

    } 

    // Configure the cell... 
    if (indexPath.section == 0) { 

     appDelegate=(AppDelegate_iPhone *)[[UIApplication sharedApplication] delegate]; 
     objXmlParse_Attributes= [appDelegate.TrendDataArray objectAtIndex:indexPath.row]; 

    }else if (indexPath.section == 1) { 

     appDelegate=(AppDelegate_iPhone *)[[UIApplication sharedApplication] delegate]; 
     objXmlParse_Attributes= [appDelegate.MyDataArray objectAtIndex:indexPath.row]; 

    } 


    NSString *text = objXmlParse_Attributes.CommenUrlTitle; 
    text = [text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; 

    NSString *text2 = objXmlParse_Attributes.CommenUrlDescription; 
    text2 = [text2 stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; 

    CGSize constraint = CGSizeMake(WIDTH - (MARGIN * 2), 20000.0f); 
    CGSize size = [text sizeWithFont:[UIFont fontWithName:@"Helvetica-Bold" size:FONT] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap]; 
    CGSize size2 = [text2 sizeWithFont:[UIFont fontWithName:@"Helvetica" size:FONT2] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap]; 

    NSString *link = [NSString stringWithFormat:@"%@", objXmlParse_Attributes.CommenUrlImage]; 

    //imgViewTemp = [[UIImageView alloc] initWithFrame:CGRectZero]; 
    //[UIImage imageNamed:@"noimage.png"] 



    if([link isEqualToString:@"No image"] || [link isEqualToString:@"no image"]){ 
     link = @""; 
     if ([link isEqualToString:@""]) { 

      imgViewTemp = [[UIImageView alloc] initWithFrame:CGRectMake(0,0,0,0)]; 

     //[imgViewTemp release]; 

     lblTitle = (UILabel*)[cell.contentView viewWithTag:1]; 
     [lblTitle setText:text]; 
     [lblTitle setFrame:CGRectMake(MARGIN+3,MARGIN, WIDTH-110+83,MIN(size.height,30))]; 

     lbldescription = (UILabel*)[cell.contentView viewWithTag:2]; 
     [lbldescription setText:text2]; 
     [lbldescription setFrame:CGRectMake(MARGIN+3,MARGIN + MIN(size.height,30),WIDTH-110+83,MIN(size2.height,40))]; 
    } 
    } 
    else{ 

     //imgViewTemp = (UIImageView*)[cell.contentView viewWithTag:3]; 
     imgViewTemp = [[UIImageView alloc] initWithFrame:CGRectMake(7,11,73,60)]; 
     [imgViewTemp setImageWithURL:[NSURL URLWithString:link] placeholderImage:nil]; 
     //image1.hidden=FALSE; 

     lblTitle = (UILabel*)[cell.contentView viewWithTag:1]; 
     [lblTitle setText:text]; 
     [lblTitle setFrame:CGRectMake(MARGIN + 83, MARGIN, WIDTH-110,MIN(size.height,30))]; 

     lbldescription = (UILabel*)[cell.contentView viewWithTag:2]; 
     [lbldescription setText:text2]; 
     [lbldescription setFrame:CGRectMake(MARGIN + 83, MARGIN + MIN(size.height,30),WIDTH-110,MIN(size2.height,40))]; 

     [cell.contentView addSubview:imgViewTemp]; 

    } 

    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; 

    return cell; 
} 

Answer 1

嘿只是搜索教程做表。在這部分不要問這樣的查詢，有很多UITableView的例子...我希望你能理解。