When we develop iOS app use Xcode, we design the app GUI ( graphical user interface ) in Main.storyboard file. And the swift source code is edited in ViewController.swift file. But how to use swift source code in ViewController.swift file to modify storyboard UI component’s attributes or process UI component’s action event? This article will […]
How To Connect Storyboard UI Component To ViewController Class Code Read More »
This article will tell you what is Xcode Library, Assistant Editor, and Inspector. It will also tell you how to display Xcode Library, Assistant Editor, and Inspector window when you need them. Because for Xcode beginners, you may find you can not find them at some time.
How To Display Xcode Library, Assistant Editor, Inspectors Window Read More »
Bitbucket is a website which is owned by Atlassian company. It provides free private git repository services, your source code will not be exposed to the public when saved in their repository. It also provides a bitbucket server for you when you want to install the repository server on your own machine, but bitbucket server
How To Use Source Tree To Manage Bitbucket Repository In Mac OS And Windows Read More »
Python requests module provide functions to write web request process code easy and simple. It can send both http get and post request to web server. When you send get request to web server, you can use python request module to pass parameters. When you send post request to web server, you can use python
How To Use Python Requests Module To Send Get Or Post Request Example Read More »
When I use the pip command to install a python module ( pip install requests ) or upgrade pip ( python -m pip install –upgrade pip ) in windows, I meet the below error message. Could not install packages due to an EnvironmentError: [WinError 5] Access is denied: ‘C:\\Program Files (x86)\\Python37-32\\Lib\\site-packages\\pip\\__init__.py’ Consider using the `–user`
This article will show you how to install mac os ( include both mac os high sierra & Mojave ) in VirtualBox virtual machine. And the host os is windows 10. Below are the steps, you can follow them.
How To Install MacOS On Virtualbox In Windows 10 Read More »
After installing macOS high sierra in VirtualBox, when I start the virtual machine, it popup the Keyboard Setup Assitant window like below. For macOS beginners, this window is so strange and I do not know what to do. And if you are not lucky, you will find your mouse and keyboard are all out of
How To Fix Mouse And Keyboard Stuck After Install Mac OS On VirtualBox Read More »
When you use oracle VirtualBox, sometimes you need to install the VirtualBox extension. Because the VirtualBox extension provides you add-on functions such as virtual USB 2.0 & 3.0 support, VirtualBox remote desktop protocol support, Intel PXE boot ROM, Disk image encryption with AES algorithm, Host webcam passthrough, etc. But when you install it, you may
How To Install Virtualbox Extension Pack Correctly Read More »
Mac os time machine is a backup/restore tool that can help you to manage your mac os backup/restore easily and flexibly. This article will tell you how to use it.
How To Use Mac OS Time Machine To Backup And Restore Read More »
When I run an android studio on mac os for the first time after installing it, it popup a dialog with the error message Unable To Access Android Sdk Add-on List. This article will tell you how to fix this issue.