IOS development bypasses virtual currency

3. This is necessary, and Apple store's review of virtual currency is relatively strict. Before bitcoin related software was launched in Apple store, it was very difficult. However, it is OK to exist in the form of integral, and it is feasible
for example, the token of decent, a decentralized content publishing platform, should be OK.

4.

1: Because the Central Bank of China defines bitcoin as a special Internet commodity and denies its monetary attribute

2: bitcoin cannot be used for payment. Therefore, bitcoin wallets cannot be used in the mainland, but they can be used outside the mainland

3: however, you can switch the apple store to Hong Kong or other regions to download bitcoin wallets, such as blockchain wallets, Bitai wallets, etc< br />

5. It's one of the meow star series

6. Specific steps:
1. Open "Settings" first
2. Select general again
3. Then click "access restrictions"
4 select "enable access restriction" and you will be prompted to enter your password
5. Enter a 4-digit password that is easy to remember
6. At this time, the "access restriction" has been opened, find the "allowed content" and close the "in app purchase"
7. After the setting is completed, the pop-up window prompt "in app purchase has been disabled" will appear when purchasing IAP
8. You need to open internal purchase and reset it.

7. After prison break, you can only install cracked versions of software. Most of them are apps that have not been uploaded to the app store or have not been audited at all in China. So it seems that there are a lot of apps, but there may not be a few boutiques. If you want to install the charging software of app store, prison break will not work, unless someone has downloaded it and then cracked and uploaded it to the assistant platform after prison break

8. PP assistant, first PC version of the next computer, and then even your Apple device installation on the line, no prison break, directly under a variety of free games

9. Unknown_Error

10. IOS
sandbox mechanism

IOS
the application program can only read files in the file system created for the program, and can not visit other places. This area is called
sandbox, so all non code files should be saved here, such as images, icons, sounds, images, attribute lists, text files, etc

1.1
, each application has its own storage space

1.2
, the application cannot cross its own fence to access the content of other storage space

1.3
, the data requested by the application must pass the permission detection, and if it does not meet the conditions, it will not be released<

through this diagram, we can only understand from the surface that
sandbox
is a kind of security system, and all operations of the application program should be executed through this system, the core content of which is:
sandbox
permission restrictions on the application program to perform various operations<

2
, open the simulator sandbox directory

and see where the sandbox folder of the simulator is on the
MAC
computer

the files are all in a hidden folder under the personal user name folder, which is called resource library in Chinese. In fact, its directory is
Library


2.1
method
1
, you can set the display and hide files, and then open them directly under
finder
. The way to view hidden files is as follows: open the terminal, Enter the command to name

show
MAC
hidden files:
defaults write com.apple.finder appleshowallfiles - bool true
Hide
MAC
hidden files:
defaults write com.apple.finder appleshowallfiles - bool false
after typing, click
Enter
to exit the terminal,
just restart
finder
Restart
finder
:
click the apple logo in the upper left corner of the window
-- & gt
forced exit
-- & gt; Finder-->
now you can see the repository folder.