Modifying Titles and Badges in iOS UITabBarController.

Understanding Retain Setter with @synthesize: The Good, the Bad, and the Automatic

Understanding iPhone SQLite Password Field Encryption with Keychain

There is no specific "best answer" for this problem, as it appears to be a collection of error messages related to crashes when trying to change video formats in an iOS app. However, I can provide some general guidance on how to approach troubleshooting and resolving similar issues.

iOS Date Formatting: Printing Time with AM/PM Format

Matching Lines Between Two Expressions Using Regex in Python

Understanding Objective-C Message Passing: The Power Behind Polymorphism

Troubleshooting Issues with Forward and Backward Play Buttons in MPMoviePlayerController

Understanding Game Center Score Submission: A Guide to Formatting Scores for Display and Leaderboard Success

Understanding the iBooks Highlighting Feature: Unlocking Proprietary Technology for Customizable Annotations and Bookmarks in HTML Documents and PDFs