自定義tableviewcell（一）

//創建一個新類繼承tableviewcell，覆寫下列函數，用代碼創建控件

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString*)reuseIdentifier
{

self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];if (self) {

// Initialization code

CGRect nameLabelRect = CGRectMake(0, 5, 70, 15);
UILabel *nameLabel = [[UILabel alloc] initWithFrame:nameLabelRect];nameLabel.textAlignment = UITextAlignmentRight;
nameLabel.text = @"Name:";
nameLabel.font = [UIFont boldSystemFontOfSize:12];[self.contentView addSubview: nameLabel];

CGRect colorLabelRect = CGRectMake(0, 26, 70, 15);
UILabel *colorLabel = [[UILabel alloc] initWithFrame:colorLabelRect];colorLabel.textAlignment = UITextAlignmentRight;
colorLabel.text = @"Color:";
colorLabel.font = [UIFont boldSystemFontOfSize:12];
[self.contentView addSubview: colorLabel];

CGRect nameValueRect = CGRectMake(80, 5, 200, 15);UILabel *nameValue = [[UILabel alloc] initWithFrame:

nameValueRect];nameValue.tag = kNameValueTag;

[self.contentView addSubview:nameValue];

CGRect colorValueRect = CGRectMake(80, 25, 200, 15);UILabel *colorValue = [[UILabel alloc] initWithFrame:

colorValueRect];colorValue.tag = kColorValueTag;

[self.contentView addSubview:colorValue];

}

    return self;
}
//重寫一下setter 

- (void)setName:(NSString *)n {
    if (![n isEqualToString:name]) {
        name = [n copy];
        UILabel *nameLabel = (UILabel *)[self.contentView viewWithTag:kNameValueTag];
        nameLabel.text = name; }
}
- (void)setColor:(NSString *)c {
    if (![c isEqualToString:color]) {
        color = [c copy];
        UILabel *colorLabel = (UILabel *)[self.contentView viewWithTag:kColorValueTag];
                                          colorLabel.text = color;
                                          }
                                          }

//數據就像這樣
- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    NSDictionary *row1 =[[NSDictionary alloc] initWithObjectsAndKeys:@"MacBook", @"Name", @"White", @"Color", nil];
        NSDictionary *row2 =[[NSDictionary alloc] initWithObjectsAndKeys:@"MacBook Pro", @"Name", @"Silver", @"Color", nil];
    NSDictionary *row3 =[[NSDictionary alloc] initWithObjectsAndKeys:@"iMac", @"Name", @"Silver", @"Color", nil];
    NSDictionary *row4 =[[NSDictionary alloc] initWithObjectsAndKeys:@"Mac Mini", @"Name", @"Silver", @"Color", nil];
    NSDictionary *row5 =[[NSDictionary alloc] initWithObjectsAndKeys:@"Mac Pro", @"Name", @"Silver", @"Color", nil];
    self.computers = [[NSArray alloc] initWithObjects:row1, row2, row3, row4, row5, nil];
}

//顯示cell就是這樣

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellTableIdentifier = @"CellTableIdentifier";
    BIDNameAndColorCell *cell = [tableView dequeueReusableCellWithIdentifier:CellTableIdentifier];
    if (cell == nil) {
        cell = [[BIDNameAndColorCell alloc]
                initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellTableIdentifier];
    }
    NSUInteger row = [indexPath row];
    NSDictionary *rowData = [self.computers objectAtIndex:row];
    cell.name = [rowData objectForKey:@"Name"]; cell.color = [rowData objectForKey:@"Color"];
    return cell;
}