Common common methods for IOS

Common common methods for IOS (you can focus on Cocoachina and have good recommendations every day)

1. Get the total disk space size

2. Get the amount of free disk space

3. Get the size of a file under the specified path

4. Get the size of all files under the folder

5. Get the first letter of a string (or kanji)

6. Grouping string arrays alphabetically by element

Use the following:

The output results are as follows:

7. Get the current time

8. Calculate the last date distance now how long, such as xx hours ago, xx minutes ago, etc.

Use the following:

The output results are as follows:

9. Determine if the phone number format is correct

10. Determine if the mailbox format is correct

11. Convert hex color to Uicolor object

12. Filter processing of images

13. Blur the image

14. Adjust image saturation, brightness, contrast

15. Create a real-time blur effect View (frosted glass effect)

16. Fullscreen

17. Capture a view to create a picture

18. Capturing a region in a view to create a picture

19. Compress the image to a specified size

20. Compress the image to the specified file size

21. Get the device IP address

The head file needs to be introduced first:

Code:

22. Determine if the string contains spaces

23. Determine if a string contains a string

24. Determine if the string contains Chinese

25. Determine if the string is all numeric

26. Draw dashed Lines

Common common methods for IOS