Data Persistence from Udacity

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Syllabus

Understand how and what tasks you can run in the background on an app and what must always run in the foreground.

Create a simple app that downloads huge images. Apply your newly acquired knowledge to send this network lengthy task to the background in two different ways.

Learn about simple persistence and how to save small pieces of data, like user preference, using NSUserDefaults.

Learn about the iOS File System, the “sandbox”, and how to access these files using NSFileManager.

Explore what a data layer is, and how to convert a non-Core Data app to have a Core Data model.

Set up the classes we need to get Core Data up and running so that we can create, save, and delete model objects.

Enable user interfaces to reactively update whenever the model changes.

Safely migrate user data between versions, and move slow work to the background.

Build an app that lets you tour the world from the comfort of your home. Users will be able to drop pins on a map, download pictures for the location, and save favorites to their device.

Learn about additional data persistence solutions to impress employers! We highly encourage you to do this elective. It is optional.

During the Sunday lesson, you'll be getting into more advanced topics. They include: - Using Firebase Storage to allow users to upload picture messages from their phone - Securing your user's uploade

Got extra time this weekend? As a bonus, you will write your own Cloud Function for Firebase that makes chat more fun by adding emojis to FriendlyChat conversations. Cloud Functions for Firebase integ

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Examines Core Data, a popular framework for data persistence in iOS development, allowing learners to store and manage data efficiently

Develops skills in simple persistence, using NSUserDefaults to save small pieces of user data, a fundamental technique in iOS development

Explores the iOS File System and the concept of the "sandbox", providing learners with a strong foundation in file management and security

Teaches how to create a data layer and convert an existing non-Core Data app to use Core Data, enabling learners to apply these concepts to their own projects

Enables user interfaces to reactively update whenever the model changes, providing learners with a powerful technique for building responsive and dynamic apps

Builds a comprehensive understanding of data persistence solutions beyond Core Data, preparing learners to explore additional options in iOS development

Career center

Learners who complete Data Persistence will develop knowledge and skills that may be useful to these careers:

Mobile Developer

Mobile Developers design, develop, test, and maintain mobile applications. This course can help build a foundation for those who want to become Mobile Developers by introducing the concepts of simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of mobile applications that require persistent storage and management of data.

See salaries and explore the career path for Mobile Developer

Database Designer

Database Designers design and develop the databases used by companies to store and manage data. This course can help build a foundation for those who want to become Database Designers by introducing the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of databases.

See salaries and explore the career path for Database Designer

Software Architect

Software Architects design, test, and maintain the software systems used by companies across the world, and they have a foundational understanding of data persistence techniques and strategies. This course can help build a foundation for those who want to become Software Architects by introducing the concepts of simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design of complex software systems that require persistent storage and management of data.

See salaries and explore the career path for Software Architect

Computer Programmer

Computer Programmers write and maintain the code that powers software applications, websites, and other computing systems. This course can help build a foundation for those who want to become Computer Programmers by introducing the concepts of simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of software systems that require persistent storage and management of data.

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Information Systems Manager

Information Systems Managers plan, implement, and maintain the information systems used by companies. This course can help build a foundation for those who want to become Information Systems Managers by introducing the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and management of information systems.

See salaries and explore the career path for Information Systems Manager

Software Engineer

Software Engineers design, develop, test, and maintain software systems. This course can help build a foundation for those who want to become Software Engineers by introducing the concepts of simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of software systems that require persistent storage and management of data.

See salaries and explore the career path for Software Engineer

Data Scientist

Data Scientists collect, analyze, interpret, and visualize data to help companies make better decisions. This course may be useful for aspiring Data Scientists as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the management and analysis of large datasets commonly used in data science.

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Systems Administrator

Systems Administrators ensure that the computer systems used by companies are always up and running and that the data within them is secure and accessible. This course may be useful for aspiring Systems Administrators as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and management of computer systems.

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Data Warehouse Architect

Data Warehouse Architects design and develop the data warehouses used by companies to store and manage large amounts of data. This course may be useful for aspiring Data Warehouse Architects as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of data warehouses.

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Cloud Architect

Cloud Architects design and develop the cloud computing solutions used by companies to store and manage their data and applications. This course may be useful for aspiring Cloud Architects as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of cloud computing solutions.

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Data Analyst

Data Analysts collect, analyze, interpret, and visualize data to help companies make better decisions. This course may be useful for aspiring Data Analysts as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the management and analysis of data.

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Database Administrator

Database Administrators ensure that the databases used by companies are always up and running and that the data within them is secure and accessible. This course may be useful for aspiring Database Administrators as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and management of databases.

See salaries and explore the career path for Database Administrator

Web Developer

Web Developers design, develop, test, and maintain websites and web applications. This course may be useful for aspiring Web Developers as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of web applications that require persistent storage and management of data.

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Network Administrator

Network Administrators ensure that the networks used by companies are always up and running and that the data within them is secure and accessible. This course may be useful for aspiring Network Administrators as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and management of networks.

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Data Engineer

Data Engineers design and develop the data pipelines used by companies to move data between different systems. This course may be useful for aspiring Data Engineers as it introduces the concepts of data persistence, including simple persistence, the iOS File System, and Core Data. These concepts can be applied to the design and development of data pipelines.

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Data Persistence

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