iPhone开发学习笔记003——UITableViewCell内容自适应高度

然后，oneViewController中添加属性：dataArray，即 *.h中添加@property (nonatomic,retain)NSArray *dataArray;
*.m中添加：@synthesize dataArray;
oneViewController.m中的部分代码如下：

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [self.dataArraycount];
}

// Row display. Implementers should *always* try to reuse cells by setting each cell's reuseIdentifier and querying for available reusable cells with dequeueReusableCellWithIdentifier:

// Cell gets various attributes set automatically based on table (separators) and data source (accessory views, editing controls)

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

    static NSString *CustomCellIdentifier = @"CellIdentifier";

    UITableViewCell *cell = [tableView

dequeueReusableCellWithIdentifier: CustomCellIdentifier];

    if (cell ==nil) {

        NSArray *nib = [[NSBundlemainBundle]loadNibNamed:@"Cell"

owner:selfoptions:nil];

        //        if ([nib count] > 0) {

        //            cell = self.tableViewCell;

        //        } else {

        //            NSLog(@"failed to load CustomCell nib file!");

        //        }

        cell = [nib objectAtIndex:0];

    }

    NSUInteger row = [indexPathrow];

NSLog(@"++++++++++++++ jonesduan %s, cell row:%d", __func__, row);

    UILabel *cellLabel = (UILabel *)[cellviewWithTag:1];

    cellLabel.text = [NSStringstringWithFormat:@"cell index %d:", row];

    UILabel *contentLabel = (UILabel *)[cellviewWithTag:2];

    NSDictionary *rowData = [self.dataArrayobjectAtIndex:row];

    //设置自动行数与字符换行 

    [contentLabel setNumberOfLines:0]; 

    contentLabel.lineBreakMode =UILineBreakModeWordWrap;

    UIFont *font = [UIFontfontWithName:@"Arial"size:12];

   //设置一个行高上限 

    //CGSize size = CGSizeMake(100 /*nameLabel.frame.size.width*/, 2000);

    CGSize size = CGSizeMake(100,2000); // 这里不一定就得是100和2000，具体数字是自已试出来的，这里的修改会影响下面计算出来的labelsize ，望牛人指教此处两个参数应该如何确定具体值，即能够通过计算一次得出应该设置的值？？？

    NSLog(@"nameLabel(x, y, witdh, height) = (%f, %f, %f, %f)", contentLabel.frame.origin.x, contentLabel.frame.origin.y, contentLabel.frame.size.width, contentLabel.frame.size.height);

    NSLog(@"size(width, height) = (%f, %f)", size.width, size.height);

    NSString *labelText = [rowDataobjectForKey:@"Name"];

   //计