I'm a student using Xcode 6 and what I need to know is how the user can type input and then I can use that input in a formula. For instance:
The user inputs 5 in one field, 7 in another and 9 and a third and then I use these three numbers in a math formula to return a value. The formula could be something like: 9/7/5 = 0.25
I'm new to programming with Swift, and I have been searching the web for an answer and I somehow can't find what I'm looking for although it's a relatively simple concept. Code examples are definitely preferred and greatly appreciated.
It is quite simple. All you need to do is get the input values using the text property of UITextField like textField1.text
For more info refer to https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITextField_Class/index.html#//apple_ref/occ/instp/UITextField
Related
I made a binary calculator with bitwise functions (bitand, bitor, bitxor, ect.) in google sheets (yes I am aware that there are built in functions to do this, this seemed more fun). It is an 8 bit calculator, and I currently have addition and subtraction implemented. Multiplication is planned, but seems way too hard at the moment
One of the things I came across is once a calculation is done, the user has to manually 0 out the addends/minuend and subtrahend one digit at a time. I would like to optimize this process.
I can easily create a script that will input 0 into all the cells and hook that up to a button. I have a feeling that's the route I'm going to have to go. But I want to challenge myself in making cool stuff, so I want the coolest solution.
My question is: is there a way I can do this without a script attached? I've been experimenting with ARRAYFORMULA and VLOOKUP, but I don't have a clear answer yet.
Expected behavior:
User inputs their calculation. User records the answer. User selects both 8 bit binary numbers (currently residing in A1:H2) and presses backspace. Google Sheet automatically translates those blank cells to 0's.
take a look into custom internal formatting. any text can be converted to "0"
then see shifted arrays:
={"", "x"}
formula from G9 will print "0" into H9. also, you can anytime enter value in H9 to "overwrite" the zero and after you don't need the entered value you just clear it with backspace or delete key and it will be filled with "0" again.
also, note that after you enter value in H9, G9 will error out and such error cant be suppressed so see hidden cells:
not sure if it's cool enough but it works (with compromises)
I am fairly sure stuff like this has been answered but I am losing my hair at the moment with this. I am using Filemaker Pro 13
I have been landed with the job of updating some templates, I have done this before but all I was doing was updating the visual side of things. Now I am wanted to dynamically update some labels and calculations depending on a 'Company selected(drop down with custom values that are all text).
Currently all costs are multiplied by 2. So if original cost = $4 then customer cost is $8. However if 'Company 4' is selected rather than being multiplied by 2 it needs to be multiplied by 1.5.
I currently have two functions that I am trying to use this functionality on a field box.
First function:
If (Company: = "Comp4"; 1;0)
Second function:
If (${Function1}; ${$Cost}*1.5; ${$Cost}*2 )
This does not work, hence the answering of this question. As far as I could understand if statements work as (Condintion; If true do X; Else do Y;). This may be the problem? I do come from a programming background but this program is irritating me beyond belief at the moment.
If this has been answered before then I offer my sincerest apologies.
Thank you for any answers or help pointing me into the right direction.
Edit: Just tried this:
If (ValueCount(FilterValues(Company;"Comp4"));${$Cost}*1.5; ${$Cost}*2)
This was to no avail. Ideally if I could fit this into one function that would be great but so far I am still failing.
Edit 2:
With regards to the function / functions not working. I would often only get the ${$Cost}*2 side of things would happen however the ${$Cost}*1.5 would not even when "Comp4" was selected. This made me think that it was either the system was not detecting "Comp4" was selected or I need to look elsewhere to find the value I need to look at.
Edit 3: Real values and calculations used
Currently used and working so to speak ( Just does the *2 aspect of things)
Field Name: x2$Charges
Calculation: ${$Charges}*2. - $Charges is the 'cost' fields (10 of them).
What I want to do is when a specific company is selected rather than doing cost *2 I want to do cost *1.5.
The check for said company is :
Field Name: x2CheckSSL
Calculation: If(Sales Rep.|Distributor: = "SSL";1.5;2)
Where Sales Rep.|Distributor: is 'Company'
It's difficult to tell what is wrong with your syntax, because we don't know the exact names of your fields. Also, "this does not work" is not a good description of a problem.
The fact that you have constructs like ${$Cost} indicates that you have invalid field names.
If you had fields named Company and Cost, then a calculation field (defined in the same table as these two fields) =
If ( Company = "Comp4" ; 1.5 ; 2 ) * Cost
should provide the expected result.
On a more general level, this is not a good approach to take. All of these factors {"Comp4", 1.5, 2} are data and should not be hard-coded into a calculation formula.
Properly, every company should have a markup value stored in its own record, and this would be looked up into a field when you select a company. Alternatively, only some (preferred) companies would have a markup, while others would use a default value stored in a preferences table.
In addition, the Company field in this table (Invoices?) should really be CompanyID and store only the (meaningless) ID of the selected company.
Added:
This is a suggestion how to perform a quick fix to your current problem, following the clarifications made in comments.
The following fields are being assumed:
• $Charges - Number[10]
• Sales Rep.|Distributor: - Text
• x2$Charges - Calculation[10] = [see formula below]
Change the calculation formula of x2$Charges to =
If ( Extend (Sales Rep.|Distributor: ) = "SSL" ; 1.5 ; 2 ) * ${$Charges}
There is no need for the x2CheckSSL field.
IMPORTANT:
You should not use repeating fields for this. I suggest that as soon as possible you rewrite your solution and fix the flaws dscovered here, namely:
Rename your fields to valid (and reasonable*) names ;
Convert repeating fields to records in a related table;
Use lookups instead of hard-coding data in calculations.
(*) e.g. not names that end with ":"
IF statement works exactly as you described and I do not see why you need two different functions. I do not understand your syntax - ${$Cost}. Are you trying to add "$" to your output?
Let's say you have a field for selection as "slelect_company" in Companies table/layout and you stored cost in a variable called $cost
You calculation will be:
If (Companies::slelect_company = "Comp4"; $Cost*1.5; $Cost*2 )
If you set the field to output result, use formatting to add $ sign
If you set the label on the layout to show the output, use this:
If (Companies::slelect_company = "Comp4"; "$" & $Cost*1.5; "$" & $Cost*2 )
If you have more than one check, you can use Case - similar to switch in the other languages
Rather than putting your calculation in a function try creating a new calculation field and put your calculation there. When the record is committed you will see the value of this calculation field change and you will know if your function is working.
To do this
Go to File->Manage->Database
Type in a new field name and select "calculation" as the type and press create.
Enter your calculation e.g. if(Companies::select_company = "Comp4"; Companies::Cost * 1.5; Companies::Cost * 2)
The calculation engine will tell you what the errors are when you try to press okay after typing the calculation.
If it never detects the condition "Comp4" then there is an error in your string comparison, perhaps a trailing space, or an uppercase character or similar.
I'm working on an iOS app that involves user input, and I'd like to keep it kid-friendly. One of the main features of the app is that user inputted titles and phrases can be shown to everyone who uses the app.
When a user creates a new title I want to verify that it is safe-for-work. My initial thought was just to have a list of all profane words and verify that none of them exist in the title:
for bad_word in list_of_bad_words:
if bad_word in user_inputted_title:
// Complain to user!
// Title is okay.
I imagine that there must be libraries or best practices for doing this. People could easily substitute numbers for letters, and I'm sure there are sequences of SFW words that create inappropriate phrases.
Can anyone suggest a better way of doing this? Specifically, if there are any Swift tools that would be awesome!
There are some cocoapods for this:
https://github.com/IslandOfDoom/IODProfanityFilter
https://github.com/MaxKramer/SCRProfanityChecker
I haven't used either of these personally, but I hope these can be a good starting point. The first one replaces any profanity with asterisks, and the second can give you the range of the profanity so you can replace it with your own filler. Good luck.
I am creating an application where I need to implement autocompletion when a user is typing into an text input, with the 10 nearest/highest ranking words appearing below the text field.
I've been given a fairly big list of around 80,000 words and their respective 'priority' - a number which determines how high up they appear in the autocomplete depending on the size of the number, like this:
"transport international";19205
"taxi";18462
"location de voitures";18160
"police";18126
"formation";17858
I am kinda new to iOS development and was wondering what is the best way to do this - should I split the 80,000 phrases into smaller files, or just keep it in one? What would be faster?
I have seen autocompletion used in an example for iOS but it was for a very small amount of suggestions - I haven't seen it done using a file this large before, and obviously I would like to make it as fast as possible for added user experience.
Any suggestions as to examples, tutorials or code suggestions would be greatly appreciated, thanks.
If you prefer something that does autocomplete but is a direct subclass of UITextField, then MLPAutoCompleteTextField may be of interest to you.
MLPAutoCompleteTextField works by simply asking its autocomplete datasource for an array of autocomplete suggestions each time the text in the textfield changes. It can even automatically sort words so that the ones closest to what the user is typing will appear at the top of the autocomplete list (using a Levenshtein Distance algorithm). Autocomplete suggestions can be simple strings, or objects that implement MLPAutoCompletionObject protocol.
Tip: For a large dataset of autocomplete terms, you'll probably want to break up your list based on starting letters. (Example: When the user enters the letter F, you give the autocomplete textfield only a list of words that start with F.)
MLPAutoCompleteTextField can efficiently sort several thousand suggestions in a reasonable amount of time, and will never block the UI while it sorts.
At the moment, weighted suggestions (that override the default sorting) aren't possible but it's a planned feature.
You may want to use this repo HTAutocompleteTextField, perfect solution.
https://github.com/TarasRoshko/TRAutocompleteView
Just conform TRAutocompleteItemsSource protocol and that's it. Protocol is designed with async support in mind. Demo app and sample TRGoogleMapsAutocompleteItemsSource should greatly help you with it.
This link worked well for me. Depending on your code, just don't miss the difference between UITextField and UITextView.
No extra libraries, just an easy custom UITableView and search function.
Long time Lurker reporting in! My issue is I'm not sure how to increment an Item no. It follows this format : LK0001 the row below it will be LK0002, below that LK0003 and so on I'm not sure how to automate this process, as you can tell I'm fairly new to google spreadsheets Sorry if it's already answered , I just can't seem to find it! Thanks!
Weej
First of all, I would suggest using the following ID build-up:
LK1000
This way characters (LK) can be separated from integers (1000). Otherwise you would face the problem, that if you increase LK0009 by 1 it becomes LK00010 and not LK0010
ID's need to be "hard coded", meaning =CONCAT or =A1+1 or =MAX(A:A)+1 are not allowed.
Either go by typing LK+max. number and use the ID as a text or go for the integers and use CONCAT when needed.
If you chose to go with the integers, you can easily increment them by doing this:
and then dragging it downwards, yielding:
I've prepared an example for you: How do I increment a string value in Google Spreadsheet?