Mac OS

How to create a Mac partition on an existing Windows drive without losing other drives on a same HDD?

• Use a Windows PC, delete that drive
• Access Mac, create partition from that deleted drive

How to config Android development

Install

• Install Android Studio
  • Install Emulator
  • List up all installed emulator
    /Users/hung-nb/Library/Android/sdk/tools/emulator -list-avds
• Install Gradle
  • Install Java, version 8 or higher
  • Download Gradle from https://gradle.org/releases/
    $ curl -O -L https://downloads.gradle-dn.com/distributions/gradle-6.0.1-bin.zip
    $ mkdir -p ~/bin/gradle
    $ unzip -d ~/bin/gradle gradle-6.0.1-bin.zip

Config

~/.bash_profile

export ANDROID_SDK_ROOT=~/Library/Android/sdk
export ANDROID_HOME=~/Library/Android/sdk
export ANDROID_AVD_HOME=~/.android/avd
export GRADLE_HOME=$HOME/bin/gradle/gradle-6.0.1
export PATH=$GRADLE_HOME/bin:$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/platform-tools

alias run-emulator1="$ANDROID_HOME/emulator/emulator @Pixel_2_API_28"
alias run-emulator2="$ANDROID_HOME/emulator/emulator @Pixel_3_XL_API_29"

~/.zshrc

source ~/.bash_profile

Hot keys

Open Finder from terminal

open .

Right click

Option + Click

Quit app

Cmd + Q

How to create empty file with a specific size?

mkfile -n 1G temp_1GB_file
mkfile -n 100M temp_100MB_file

How to clean up Mac storage?

• Clean up simulator images
  open ~/Library/Developer/Xcode/UserData/IB Support/Simulator Devices
• Clean up DerivedData
  open ~/Library/Developer/Xcode/DerivedData
• Clean up Mac cache
  open /Library/Caches/
• Clean up app cache
  open ~/Library/Caches/

Is it safe to empty folder “~/Library/Developer”?

YES if you plan to completely remove your existing Xcode and install a new version

Useful apps for development

File comparison

Meld