Android – How to create a shared library?
How to create an Android library? 1. Create an empty example project 2. Add Android library into this project 3. Add library project into example […]
Mobile App
Apple – App Store (2)
User management ErrorYour Apple ID cannot end in @______.com. Choose a different email address. SolutionThis is because “________.com” domain is added in Apple Business Managerhttps://support.apple.com/en-gb/guide/apple-business-manager/apde685676ac/web How to […]
Kotlin – All about
Singleton How to create an object once and use it everywhere? It’s a singleton class. A singleton class is a class that is defined in […]
iOS – All about keychain
Is the local keychain removed when an app is uninstalled? No, the local keychain is still there. How to remove keychain when an app is […]
iOS – How to create a private CocoaPods library?
Create a pod library Generate a template Pod library project Create a dummy Pod class Push Pod library into remote repo Configure podspec file Create […]
React Native – How to create a native module?
iOS Open iOS project in XCode Create MyNativeModule.h Create MyNativeModule.m Android Open Android project in Android Studio Create MyNativeModule.java having native Android moduleJava Kotlin Create […]
How to add React Native into existing native Android/iOS app (1)?
Follow this instruction integration-with-existing-apps You may need to install “react”: “x.x.x” by yourself. It is recommened to create an example React Native AwesomeProject for reference. […]
Node – How to manage packages?
How to view the detail of a package? How to check why a package exists in the project? How to set a registry for npm/ […]
ReactJS – How to improve performance (1)
How to use useCallback? Use useCallback to save a function unless dependencies are changed By using useCallback, you can prevent unnecessarily re-rendering components by returning […]
React Native – How to import font files?
1. Download font files Source+Sans+Pro 2. Place your font files into your project 3. Create react-native.config.js 4. Link font files react-native >= 0.69 react-native < […]