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![HIREVIETNAMESE
http://www.hirevietnamese.com
NSUserDefaults
Get a Handle to the NSUserDefaults object
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
Saving
[prefs setObject:ObjectToSave forKey:”KEY”];
Retrieving
NSString *myString = [prefs stringForKey:@“KEY"];
4](https://image.slidesharecdn.com/lesson4-120215212511-phpapp01/85/HireVietnamese-Lesson-4-4-320.jpg)
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HireVietnamese - Lesson 4
This document discusses storing data in iOS applications. It covers using NSUserDefaults to store user preferences and a SQLite database to store and retrieve other application data. Examples and exercises are provided to demonstrate creating and querying a SQLite database to perform operations like selecting, deleting, adding, and updating data.
HireVietnamese - Lesson 4
- 1. HIREVIETNAMESE iPhone Training Lesson 4
- 2. HIREVIETNAMESE http://www.hirevietnamese.com Contents 1 Storing Data 4 Example 4 5 Exercise 4 2
- 3. HIREVIETNAMESE http://www.hirevietnamese.com Storing Data Setting user Preferences with NSUserDefaults 3
- 4. HIREVIETNAMESE http://www.hirevietnamese.com NSUserDefaults Get a Handle to the NSUserDefaults object NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; Saving [prefs setObject:ObjectToSave forKey:”KEY”]; Retrieving NSString *myString = [prefs stringForKey:@“KEY"]; 4
- 5. HIREVIETNAMESE http://www.hirevietnamese.com Storing Data Saving/Retrieving Data from a SQLite Database 5
- 6. HIREVIETNAMESE http://www.hirevietnamese.com Create Database 6
- 7. HIREVIETNAMESE http://www.hirevietnamese.com Check and Create DB 7
- 8. HIREVIETNAMESE http://www.hirevietnamese.com Select Statement 8
- 9. HIREVIETNAMESE http://www.hirevietnamese.com Delete Statement 9
- 10. HIREVIETNAMESE http://www.hirevietnamese.com Add Statement 10
- 11. HIREVIETNAMESE http://www.hirevietnamese.com Update Statement 11
- 12. HIREVIETNAMESE http://www.hirevietnamese.com Example 4 12
- 13. HIREVIETNAMESE http://www.hirevietnamese.com Exercise 4 13
- 14.