Ollie MC, Author at iZZiSwift

Swift UIFont IBInspectable – is it possible?

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: I have a UIView subclass. In this view I create instances of UIlabel. Now I want to set the font attributes for these labels in the Storyboard. Is it possible to make an IBInspectable for UIFont?

Initialization of ‘UnsafeMutableRawPointer’ results in a dangling pointer

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: Since Xcode 11.4 I get the warning message “Initialization of ‘UnsafeMutableRawPointer’ results in a dangling pointer”

How to compare nested collections in swift

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: I have two collections:

Functions Defined The core of extensible programming is defining functions. Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists.

ImportError HDFStore requires PyTables No module named tables

January 13, 2021 Ollie MC

Question or problem about Python programming: import pandas as pd dfs = pd.HDFStore(‘xxxxx.h5’) throws this error: “ImportError: HDFStore requires PyTables, “No module named tables” problem importing” I tried to install PyTables, which Requires Cython. I have Cython 0.21 installed, but it is throwing an error stating that Cython should be greater than 0.13 Here is […]

How to update search results when scope button changed. Swift UISearchController

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: How to update search results when scope button changed (after my click on scope)? Search results changed (with new scope) when I type again!

Swift UITesting error: Invalid escape sequence in literal. \U201c

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: I am building an automation suite using Xcode 7 with swift.

Convert touch location of UITapGestureRecognizer for SpriteKit – Swift

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: I created a game with a SceneKit scene into a UIViewController.

Calling obj-c enum from swift not working after upgrading to Xcode 7.3 swift 2.2

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: The code was working well before the upgrade to Xcode 7.3 from 7.1 and swift 2.2. I have also seen answers using the typedef NS_ENUM(NSUInteger, MyStatus)… but if possible, I prefer not to change the existing obj-c code.

defaultdict(None)

January 13, 2021 Ollie MC

Question or problem about Python programming: I wish to have a dictionary which contains a set of state transitions. I presumed that I could do this using states = defaultdict(None), but its not working as I expected. For example:

Setting Alamofire custom destination file name instead of using suggestedDownloadDestination

January 13, 2021 Ollie MC

Question or problem in the Swift programming language: I got many lists of invoice file at my table view as well as many download buttons at each cell.When I clicked one of it,it will download the invoice file.But,the problem is the server response suggested file name is “invoice.pdf” at every file I downloaded.So,I need to […]