关于字符串警告格式不是字符串文字，也没有格式参数

Question

Hi i am using following code.

NSString *quant = [NSString stringWithFormat:@"%@",item.capacity];
NSString *metricUnit = item.metric_Unit;
cell.quantity.text = [quant stringByAppendingFormat:metricUnit];

while quant is nsnumber and im getting a warning named "format is not a string literal and no format arguments" and im trying many was but did nt success, plzz if any one know how to remove that warning plzz tell ...

Hope your positive response

Answer 1

The warning is self-descriptive - api expects format you're passing to stringByAppendingFormat function to be a string literal. To avoid this warning you can just append a string (as you don't use format parameters anyway):

cell.quantity.text = [quant stringByAppendingString:metricUnit];

or

cell.quantity.text = [quant stringByAppendingFormat:@"%@",metricUnit];