AVPlayer currentTime is Negative Value Introduction In this article, we’ll delve into the world of AVPlayer and explore a common issue that developers often face when using it to play audio files. Specifically, we’ll examine why AVPlayer’s currentTime property sometimes displays a negative value at start time. Background AVPlayer is a powerful tool for playing media in iOS and macOS applications. It provides an easy-to-use API for handling video playback, including seeking, buffering, and more.

Using a Single XIB File with Multiple View Controllers and Table Views When working with multiple view controllers in an iOS application, it’s common to share UI elements such as tables views across these controllers. One way to achieve this is by using a single XIB file that contains the shared table view. In this article, we’ll explore how to use a single XIB file with multiple view controllers and table views.

Facet Scatter Plots with Sample Size in R using ggpubr and dplyr Libraries When creating scatter plots, particularly those with faceted elements (i.e., multiple subplots grouped by a common variable), it’s essential to include relevant metadata, such as the sample size for each group. This provides context and helps viewers better understand the relationships being examined. In this article, we’ll explore how to add sample sizes to facet scatter plots using R and the ggpubr library, which simplifies the creation of publication-quality statistical graphics.

Defining Class Methods and Class Variables in R5 Reference Classes In this article, we will delve into the world of R5 reference classes, exploring how to define class methods and class variables. We’ll examine the official documentation and existing best practices to provide a comprehensive guide for creating well-structured reference classes. Introduction to R5 Reference Classes R5 reference classes are a new feature in R that allows developers to create reusable and modular code.

Working with IntervalIndex in Pandas: A Deep Dive When working with date and time data in pandas, intervals can be a useful way to represent ranges of values. However, querying an IntervalIndex with another interval can be tricky. In this post, we’ll explore how to query a Pandas IntervalIndex with intervals using the get_indexer method. Introduction to IntervalIndex An IntervalIndex is a data structure in pandas that stores intervals of numbers.

Understanding Memory Leaks in Objective-C: A Deep Dive Introduction to Memory Management in Objective-C Objective-C is a powerful programming language that is widely used for developing iOS, macOS, watchOS, and tvOS apps. One of the fundamental concepts in Objective-C is memory management, which refers to the process of managing memory allocation and deallocation for objects in the application. In this article, we will explore the concept of memory leaks, their causes, and how to identify and fix them.

Introduction to Facebook Login using SDK ==================================================================== In this article, we’ll explore how to implement Facebook login in your iOS application using the Facebook SDK. We’ll delve into the process of handling user profile permissions, requesting access to accounts, and opening the Facebook login page. Prerequisites Before you begin, make sure you have: Xcode 12 or later installed on your Mac. The Facebook SDK for iOS downloaded from https://developers.facebook.com/ios/. A valid Facebook app ID and permissions set up in the Facebook Developer Console.

Interleaving Arrays in Swift: A Comprehensive Guide Interleaving two arrays in Swift can be achieved through various methods, each with its own strengths and use cases. In this article, we will delve into the world of array manipulation, exploring different approaches to combine two arrays while preserving the order of each individual array. Understanding Interleaving Before diving into the solution, it’s essential to understand what interleaving means in this context. Interleaving refers to the process of combining two or more sequences (in this case, arrays) into a single sequence where elements from each original sequence are alternated.

Exporting Data Frames to CSV Files from a List ===================================================== In this article, we will discuss how to export each data frame within a list to its own CSV file. This can be achieved by looping through the list of data frames and using the write.csv() function. Background Information The write.csv() function in R is used to write a data frame to a CSV file. However, when working with lists of data frames, we need to loop through each element in the list to export it to its own CSV file.

Working with Character Type Values in R: A Deep Dive Introduction In this article, we will explore how to convert character type values into numbers in R. We’ll examine a specific example from the Kaggle dataset and discuss possible approaches to achieve this goal. Understanding the Problem The problem revolves around a column in a data frame called time_stamp that has been converted to a factor with four levels: 1,54E+16, 1,54E+17, 1,55E+15, and 1,55E+16.