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Get location coordinates using CLLocationManager in Swift

Get location coordinates using CLLocationManager in Swift

To get the location (latitude and longitude) of a device in Swift, you can use the Core Location framework, which is an official library from Apple. Only 2 steps are required, so it is pretty simple: Step 1: Set up proper permission To get the location of a device in

Encode URL in Swift

Encode URL in Swift

It is quite common to see that we can correctly set up the HTTP header, token, body and POST/GET methods in our iOS code, but we still can't get the right response. Here is an error which most of people encounter before, incorrect url encoding. Sometimes the

Difference between activity and requireActivity() in Kotlin

Difference between activity and requireActivity() in Kotlin

activity property In the Android framework, the Activity class represents an app's UI and provides an interface for the app to interact with the system. The activity property in a Fragment or Context object refers to the Activity that the Fragment or Context is currently associated with. Here

Start and Suspend a Coroutine in Kotlin

Start and Suspend a Coroutine in Kotlin

Kotlin Coroutines Table Content 1, Introduction to Coroutine in Kotlin 2, Non-blocking in Kotlin Coroutines 3, Start and Suspend a Coroutine in Kotlin (This article) With the previous articles (Introduction to Coroutine in Kotlin) on Kotlin Coroutine, we know there are two main ways to start a coroutine: launch and

Non-blocking in Kotlin Coroutines

Non-blocking in Kotlin Coroutines

Kotlin Coroutines Table Content 1, Introduction to Coroutine in Kotlin 2, Non-blocking in Kotlin Coroutines (This article) 3, Start and Suspend a Coroutine in Kotlin (incoming this week) From the last article, Introduction to Coroutine in Kotlin, it is known that Coroutine in Kotlin provides advantages such as lightweight, non-blocking

Introduction to Coroutine in Kotlin

Introduction to Coroutine in Kotlin

A Coroutine is a lightweight thread of execution that can be suspended and resumed later. There are already many articles or topics covering this but this post is different, it is simple and can let you get start more easily. It will cover the following parts: * Introduction to Coroutine in

Nested method in Swift

Nested method in Swift

A nested method in Swift is a method or function that is defined within another function. Nested functions have the following characteristics: * They have access to all variables and constants of the outer function, including local variables and parameters. * They do not have access to variables or constants in the

Popup alert in Swift

Popup alert in Swift

As mentioned in the other article: Popup Custom View in UIKit: popup mainly can be: * popup an alert using UIAlertController * popup action sheet using UIAlertController. For more details, check this: Present action sheet in UIKit and SwiftUI * popup a custom view/viewController A popup dialog is a component that displays

How to make a custom view in Kotlin

How to make a custom view in Kotlin

To create a custom view in Kotlin, you can create a new subclass of View and override the onDraw method to draw the view's content. Then, you can add any additional properties or behavior that you want the view to have. Here is an example of a custom

Popup Custom View in UIKit

Popup Custom View in UIKit

In UIKit, popup mainly can be: * popup an alert using UIAlertController * popup action sheet using UIAlertController. For more details, check this: Present action sheet in UIKit and SwiftUI * popup a custom view/viewController The following will demonstrate how to present a custom view/viewController by creating a custom popup by

Compiler directives in Swift

Compiler directives in Swift

This post is going to list some of the most frequently used compiler directives in Swift, compatible in Swift 3/4/5. Someone might call this preprocessor directives, but they are the same concept. In this post, we list few commonly used directives with detailed examples: Updated in 2022 #sourceLocation

Present action sheet in UIKit and SwiftUI

Present action sheet in UIKit and SwiftUI

An action sheet is a component that displays a set of choices to the user in a modal format. UIKit In iOS, you can create an action sheet using a UIAlertController with the .actionSheet style. Here is an example of how to create an action sheet in Swift: let actionSheet

What is keyword defer in Swift

What is keyword defer in Swift

The defer keyword in Swift is used to execute a block of code at the end of the current scope, regardless of how the scope is exited. The defer block is executed after any return statements, and before any finally blocks. Here is an typical example of how to use

Command pattern in Swift

Command pattern in Swift

Many of us have heard about the Command pattern or used them in the development, which is a behavioral design pattern in which an object is used to encapsulate all of the information required to perform an action or trigger an event at a later time. This information includes, for

Have you tried XCTUnwrap before?

Have you tried XCTUnwrap before?

What is XCTUnwrap and how to use it to help you effectively while you are doing the unit test? XCTUnwrap is a utility function that is used in unit tests to unwrap optional values. It is part of the XCTest framework, which is the default testing framework for iOS and

PLIST file in iOS

PLIST file in iOS

A Property List (PLIST) file is a file format used by macOS and iOS to store serialized data. It is often used to store data such as user preferences, settings, and other information that needs to be stored persistently. PLIST files can either be stored in a binary format and

What is YAML file and compared with JSON

What is YAML file and compared with JSON

YAML (YAML Ain't Markup Language) is commonly used for configuration files, but can be used in many applications where data is being stored or transmitted. A YAML file consists of a series of key-value pairs, with the keys and values represented as strings. The keys are separated from

Create Property Wrapper in Swift

Create Property Wrapper in Swift

What is Property Wrapper Property wrapper are a language feature that allows you to wrap a piece of code around a property in Swift world, which can help us to add additional behavior or functionality to that property. The benefits of it is to reduce the code repetition. Property wrapper

Bottom Sheet Dialog implementation in kotlin

Bottom Sheet Dialog implementation in kotlin

To create a bottom sheet dialog in Kotlin, you can use the BottomSheetDialog class from the Android Support Library, which is a built-in package. Here's an example of how you can use a BottomSheetDialog in Kotlin: val bottomSheetDialog = BottomSheetDialog(this) val view = layoutInflater.inflate(R.layout.example_bottom_

Workplace, Project, Scheme and Target in iOS development

Workplace, Project, Scheme and Target in iOS development

Many of us have seen workspace, project, target and scheme quite often while doing the iOS development, but what are they exactly and how are they related with each other? Workplace Workplace in Xcode is a tool for managing and organizing your project files. It allows you to easily navigate

Equatable and Comparable in Swift

Equatable and Comparable in Swift

It is quite common that we are required to compare two custom objects in Swift, luckily Swift has provided some built-in protocol allows us to do this in a "swift" way. Equatable In Swift, Equatable is a protocol that allows us to determine whether two reference objects are

Difference between layoutIfNeeded vs. setNeedsLayout

Difference between layoutIfNeeded vs. setNeedsLayout

As many of iOS developer known, layoutIfNeeded and setNeedsLayout are two methods that can be used to update the layout of a view and its subviews. But what are their differences? Today's article will help this out: LayoutIfNeeded layoutIfNeeded is a method that forces the view to immediately

Constructor Injection, Property Injection vs. Method Injection

Constructor Injection, Property Injection vs. Method Injection

Dependency Injection is a design pattern that is providing another object with its dependencies, instead of having the object created or managed themselves. There are three main types of dependency injection: constructor injection, property injection, and method injection. Constructor injection As the name indicated, constructor injection is passing the dependencies

Type safe in programming language

Type safe in programming language

Introduction Type safety in programming languages refers to the concept that variables and data structures are strongly typed and cannot be assigned values of different types. This means that the programming language will not allow the programmer to accidentally or intentionally assign a incorrect type to a variable or data

ContentHugging vs. ContentCompressionResistance in UIStackView

ContentHugging vs. ContentCompressionResistance in UIStackView

In Swift, it is quite common to see ContentHugging and ContentCompressionResistance either when we are using the storyboard or code to render the user interfaces in UIStackView. Those 2 properties determine how a view can automatically adjust its size with the content give, such as dynamic & long text, images