Detailtext僅在第一個標籤表示

Question

得到的代碼，但detailText僅在第一「列」表示的情況下，0

代碼是下：的cellForRowAtIndexPath

if (indexPath.row == 0) { 

     cell.detailTextLabel.text = @"A"; 
    } 

}  

else if (indexPath.row == 1){ 

cell.detailTextLabel.text = @"B"; 

} 

else if (indexPath.row == 2){ 

cell.detailTextLabel.text = @"C"; 

} 

else if (indexPath.row == 3){ 

cell.detailTextLabel.text = @"D"; 

} 

Answer 1

有一個明顯的右撐條不匹配，你的代碼更改爲：

if (indexPath.row == 0) { 
    cell.detailTextLabel.text = @"A"; 
} 
else if (indexPath.row == 1) { 
    cell.detailTextLabel.text = @"B"; 
... 

可以縮短，要

cell.detailTextLabel.text = [@"ABCD" substringWithRange:NSMakeRange(indexPath.row,1)];