Question

I’m new to iOS development, just had a quick question. I’m creating an app with 100 UILabel’s. Each label is numbered 0 to 99. The problem is that I dont want to do this for all 100 labels.

output1.text = [[NSString alloc] initWithFormat:@"1"];
output2.text = [[NSString alloc] initWithFormat:@"2"];
.....
output100.text = [[NSString alloc] initWithFormat:@"100"];

Instead I’d like to do this a little more dynamically. Below I’m trying to use loops to dynamically create a string. For example by appending “1.text” to the end of “output” I get the string “output1.text”.

for (int i=0; i< 100; i++) {
    outputNameString = [NSMutableString stringWithCapacity:0];
    [outputNameString setString:@"output"];
    [outputNameString appendString:[NSString stringWithFormat:@"%i.text",i + 1]];
    outputNameString = [[NSString alloc] initWithFormat:@"%@",i];
}

“output1” to “output100” are properly declared in the interface section and synthesized properly. Is there something I’m missing here, or is this simply not possible? Any help would be appreciated.

Answer 1

when you create the label.. set them tags from lets say (100—200 )

so .
initialize your label like this..

 for (int i=0; i< 100; i++) {

UILabel *label = [[UILabel alloc] init] ;
// label formatting code here...

label.tag = i+100;
   }

then get your label like this..and set its text

for (int i=0; i< 100; i++) {

UILabel *myLabel = (UILabel *)[self.view viewWithTag:i+100]; // get the label with tag
myLabel.text = [NSString stringWithFormat:@" Label %d",i+1"];
}

this should work great..
What is the problem.?