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Use openssl to create public key and private key

Mar 7, 2021 Other

Generally speaking, currently digital encryption methods can be divided into two main categories, symmetric encryption and asymmetric encryption. For symmetric encryption, the same key is

A summary of use enum in Swift

Mar 1, 2021 Swift iOS

Enumeration type is a common type in many programming languages, which normally presents a set of limited status for a program, such as list all

Use Extension in Swift

Feb 27, 2021 Swift iOS

Extension is a great feature in Swift, which can help us to create helper/utility variables and method, and etc. Use extension to conform protocols

Property in Swift

Feb 25, 2021 iOS Swift

Unlike other programming languages, there are three types properties in Swift. Stored Properties They are constants or variables of a class, and part of the

How to check whether a mobile device is muted or not on iPhone/iPad

Feb 23, 2021 iOS Objective-C

On iOS devices, there are mainly two types of sounds: * Ringtones and reminders: Including system sounds such as phone calls, text messages, notifications (also including