Hey I am trying to display objects from NSMutableArray as text in UITextView and I am getting a problem:
Invalid operands to binary expression ('void' and 'NSString *')
Any suggestions how can it be done?
Here is the Code:
for (id obj in Mview.arrayTape)
viewTape.text = Mview.arrayTape.removeLastObject + @"/n" + viewTape.text;
viewTape is an UITextView , arrayTape is the NSMutableArray passed from another view
Any help would be much appreciated.
removeLastObject returns nothing (void) and you are appending it result to make a new string:
viewTape.text = Mview.arrayTape.removeLastObject + @"/n" + viewTape.text;
Try this instead: (untested)
for (NSString* obj in Mview.arrayTape)
{
viewTape.text = [viewTape.text stringByAppendingFormat:@"%@\n", obj];
}
Assuming obj is a type of NSString, if it is not use its corresponding string representation.
EDIT
Another approach. not yet offered by other solutions, no need to use for loop
viewTape.text = [Mview.arrayTape componentsJoinedBy:@"\n"]
Mview.arrayTape.removeLastObject has the return type void i.e. it does not have a return value. And you cannot concatenate nothing with a string because void does not have a type (or class).
I guess what you want is this:
viewTape.text = [NSString stringWithFormat:@"%@\n%@",(NSString *)Mview.arrayTape.lastObject,viewTape.text];
You can remove the last object afterwards if intended:
[Mview.arrayTape removeLastObject];
It is because this method removeLastObject do not returns anything, look here. You should get the last object and get the string value add it (append it) to text in text view and the remove if required
