Objective C - Number to String and Grab length inconsistencies -

I am trying to capture a number from a text box entry, convert it to string and take the length of it . (IE: Do some LEN (some integers) on the number).

I am capable of working on it, though there are some discrepancies when the number is 0 or zero.

For example;

  - Update (IBAction) {// Inputfield number pad text box is double-input input = [input field.text double value]; // nsnm * c = [nsnumber number repeat: my input]; NSString * myOutput = [c stringValue]; NSLog (@ "start number (number) =% @", c); NSLog (@ "MyOutput (string) =% @", MyOutput); NSLog (@ "MyOutput (length) =% d", ([myOutput length])); }  

The conversion works fine for the number for the string. The problem I have is with length, especially when there is no number (or zero) entry.

I have a number pad text box entry that is on XIB in which "text" of 0 (placeholder bus "Enter number here")

When you first entered the text box If you start typing then "text" gets removed and you start with a blank text box.

Issue 1 - When you enter the text box for the first time, there is nothing in the textbox, but my NSLog says the output length is 1 character long.

This is the cause of a problem because there is nothing in the visually text box, but [myOutput length] reports 1 character length.

Issue 2 - When you start entering numbers, everything goes well - but when you start to extract the numbers on that number, where you completely text box If we clean, then it reports the length of 1 character.

If there is nothing in the text box, how can it read 1 character? I think it should be "text" (from the Recognition Inspector) again.

summary.

1. There is a number pad text box entry field. Whenever you update the entry, it calls the IBAP update method.

2. When you enter numbers in the text box for the first time, there is nothing visible in the input field, but the NSLog report length is 1 character long.

3. When you start numbers and then start removing them from one time, you remove all the numbers altogether, this length is 1 Describes the character as long as possible.

In both cases, NSLog 0 should be length reporting, but it never does I try to [myOutput length] - 1 but it gives me strange results .

Any help on this will be great

Thank you.

If there is no text, then myInput equals 0.0. myOutput then equals @ "0" , whose length is 1.

Why not only [inputField.text length] ?

You can do something like this:

  NSNumber * number = zero; If ([inputField.text length]> gt; 0) {number = [repeat NSNumber number: [inputField.text doubleValue]]; }  

In this way if your number is present then otherwise the number will be zero .