Author Archives: Tang

About Tang

A mobile developer, work in Stockholm, Sweden

Razer Synapse showing “PLEASE CONNECT A RAZER SYNAPSE ENABLED DEVICE”

Posted on March 7, 2022 by Tang

What we’ll need to do is add Razer to the allowed developers for kernel extensions — we’ll basically add the Razer ID (R2H967U8J8) to the list of allowed kernel extension developers. Boot into recovery mode (Restart your mac and hold … Continue reading →

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SwiftUI: State, StateObject, ObservedObject, ObservableObject

Posted on November 28, 2021 by Tang

State A property wrapper type that can read and write a value managed by SwiftUI. SwiftUI manages the storage of any property you declare as a state. When the state value changes, the view invalidates its appearance and recomputes the … Continue reading →

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How to delete an App from command line

Posted on July 1, 2020 by Tang

1. List all simulators Find out all simulators xcrun simctl list Find out active simulator xcrun simctl list | grep Booted You will get the result like: $ xcrun simctl list |grep Booted iPhone 11 (AE8852AB-378E-47FB-BD23-4CF77BFBC6DC) (Booted) Now you can … Continue reading →

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Combine Asynchronous Programming

Posted on May 20, 2020 by Tang

1 Combine basics Combine is a declarative, reactive framework for processing asynchronous events over time. It aims to solve existing problems, like unifying tools for asynchronous programming, dealing with mutable state and making error handling a starting team player. Combine … Continue reading →

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Configure Visual Studio Code for Swift development

Posted on June 15, 2019 by Tang

1. Build sourcekit-lsp https://github.com/apple/sourcekit-lsp#building-sourcekit-lsp $ git clone https://github.com/apple/sourcekit-lsp.git $ swift package update $ swift build  The sourcekit-lsp will be here: /Users/zhihuitang/repo/common/sourcekit-lsp/.build/x86_64-apple-macosx/debug/sourcekit-lsp 2. Configure sourcekit-lsp In the sourcekit-lsp settings, set the Language Server Mode to sourcekit-lsp  Set Server Path: … Continue reading →

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HOW TO RUN VISUAL STUDIO CODE FROM ZSH ON MAC OSX

Posted on May 29, 2019 by Tang

Adding the codefunction to .zshrc file: function code { if [[ $# = 0 ]] then open -a "Visual Studio Code" else local argPath="$1" [[ $1 = /* ]] && argPath="$1" || argPath="$PWD/${1#./}" open -a "Visual Studio Code" "$argPath" fi … Continue reading →

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MongoDB on Mac

Posted on May 4, 2019 by Tang

1.What’s MongoDB? MongoDB is a document database which belongs to a family of databases called NoSQL – not only SQL. In MongoDB, records are documents which behave a lot like JSON objects in JavaScript. Values in documents can be looked … Continue reading →

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Python3 Virtualenv Setup

Posted on April 22, 2019 by Tang

Install python3 brew install python3 Pip3 is installed with Python3 Upgrade virtualenv To install virtualenv via pip run: pip install –upgrade virtualenv Create virtualenv virtualenv -p python3 python3-venv Activate the virtualenv source python3-venv/bin/activate Deactivate the virtualenv deactivate

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LLDB you should know

Posted on April 5, 2019 by Tang

LLDB is a next generation, high-performance debugger. It is built as a set of reusable components which highly leverage existing libraries in the larger LLVM Project, such as the Clang expression parser and LLVM disassembler. LLDB is the default debugger … Continue reading →

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Xcode instruments

Posted on February 6, 2019 by Tang

 The two columns worth noting in Instruments are # Persistent and # Transient. The Persistent column keeps a count of the number of objects of each type that currently exist in memory. The Transient column shows the number of … Continue reading →

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