插入字符串光标所在

Question

我想插入文本光标所在目前，所以我有下面的代码

NSString *contentsToAdd = [myData objectAtIndex:row]; 
    NSMutableString *tfContent = [[NSMutableString alloc] initWithString:[self.myTextView text]]; 
    // add content where the cursor was 
    [tfContent insertString:contentsToAdd atIndex:myCursorPosition.location]; 
    [self.myTextView setText:tfContent]; 
    [tfContent release]; 

    This works as below 
    Hi 
    HiFriend 

其实我想之前和附加文本后留下一个空间（喜的朋友）。

所以我该怎么去。 扶我起来，欢呼声

Answer 1

尝试成才，如：

NSString *contentsToAdd = [myData objectAtIndex:row]; 
NSMutableString *tfContent = [[NSMutableString alloc] initWithString:[self.myTextView text]]; 
// add content where the cursor was 
NSString *contentsToAddPadded = [NSString stringWithFormat:@" %@ ", contentsToAdd]; 
[tfContent insertString:contentsToAddPadded atIndex:myCursorPosition.location]; 
[self.myTextView setText:tfContent]; 
[tfContent release]; 

Answer 2

尝试是这样的：

NSString *beginning = [self.myTextView.text substringToIndex:currentRange.location]; 
NSString *ending = [self.myTextView.text substringFromIndex:currentRange.location]; 
self.myTextView.text = [NSString stringWithFormat:@"%@% @% @",beginning, contentsToAdd, ending, nil];