文字列を配列に挿入する必要があることに気付くまで、NSArrayを使用してこれを機能させました。これを NSMutableArray に変更していますが、構文に問題があります。NSMutable 配列で componentsJoinedByString を使用できますか?
NSString *item;
int numofSeg;
int needSeg;
if (textfield.text == @"::") {
numofSeg = 0;
}
NSMutableArray *dlist = [[NSMutableArray alloc]init];
//take string from textfield and split it into a list on colons.
dlist = [textfield.text componentsSeparatedByString:@":"];
//run through list to count how many segments. Non blank ones.
for (item in dlist) {
if (item != @""){
numofSeg = numofSeg + 1;
NSLog(@"%@",numofSeg);
}
}
//determine number of segments
needSeg = 8 - numofSeg;
while (needSeg > 0) {
//insert 0000 at blank spot
[dlist insertString:@"0000" atIndex:@""];
needSeg = needSeg - 1;
}
for (item in dlist) {
if (item == @"") {
//remove blank spaces from list
[dlist removeAllObjects:item];
}
}
//join the list of times into a string with colon
NSString *joinstring = [dlist componentsJoinedByString:@":"];
NSLog(@"%@",joinstring);