Pod Init Error: “force_encoding’: can’t modify frozen String (FrozenError)” – at iOS
I found that there may be a problem with the newly created project in Xcode14。 You can temporarily solve this problem by following the steps in the picture.
init
Overriding init in subclass
Every Cocoa Touch (and Cocoa) class has a designated initializer; for UIView, as stated in this documentation, that method is initWithFrame:. In this particular case, you’ll only need to override initWithFrame; all other calls will cascade down and hit this method, eventually. This goes beyond the scope of the question, but if you do end … Read more
Convert NSNumber to NSDecimalNumber
You can do: NSDecimalNumber *decNum = [NSDecimalNumber decimalNumberWithDecimal:[aNumber decimalValue]];
How to set which control gets the focus on application start
The one with the minimum tab index automatically gets the focus (assuming the TabStop property is set to true). Just set the tab indices appropriately. By the way, Visual Studio provides a way to easily set tab indices by just clicking on the controls in the order you want. You can activate this feature by … Read more
Using module’s own objects in __main__.py
You need to either have the package already in sys.path, add the directory containing mymod to sys.path in __main__.py, or use the -m switch. To add mymod to the path would look something like this (in __main__.py): import sys import os path = os.path.dirname(sys.modules[__name__].__file__) path = os.path.join(path, ‘..’) sys.path.insert(0, path) from myprog import function_you_referenced_from_init_file Using … Read more
How could I initialize the @State variable in the init function in SwiftUI?
Property wrappers are generating some code for you. What you need to know is the actual generated stored property is of the type of the wrapper, hence you need to use its constructors, and it is prefixed with a _. In your case this means var _mapState: State<Int>, so following your example: import SwiftUI struct … Read more
Is there any reason to choose __new__ over __init__ when defining a metaclass?
If you want to alter the attributes dict before the class is created, or change the bases tuple, you have to use __new__. By the time __init__ sees the arguments, the class object already exists. Also, you have to use __new__ if you want to return something other than a newly created class of the … Read more
Property initializers run before ‘self’ is available
As correctly pointed out by vadian you should create an init in such scenarios: class MyOwn { let myUser: User var life: Int init() { self.myUser = User(name: “John”, age: 100) self.life = myUser.age } } You can’t provide a default value for a stored property that depends on another instance property.
How critical is dumb-init for Docker?
Something like dumb-init or tini can be used if you have a process that spawns new processes and you don’t have good signal handlers implemented to catch child signals and stop your child if your process should be stopped etc. If your process doesn’t spawn new processes (e.g. Node.js), then this may not be necessary. … Read more
Guice call init method after instantinating an object
You can just add the @Inject annotation to your init() method. It will get run automatically after the object is instantiated.