How to reduce size of a React Native Application-CodePudding

I have created a simple React native application but when I am creating the android build the size of the application is very large, around 35mb. How can I reduce my application's size? I am using :

expo build:android

CodePudding user response：

There are two ways to do this : The first one is to migrate the project to Bare React Native and then use build command or use eas feature provided by expo. Use eas build --platform for building ios or android package as it optimizes the size as well. Checkout this link for more, hope this helps.

CodePudding user response：

From your project directory, run expo eject

This will download the required dependencies and build native projects under the ios and android directories.

then go to android/app/build.gradle and change

project.ext.react = [
    enableHermes: true,  // false to true , clean and rebuild if changing
]

 * Set this to true to create two separate APKs instead of one:
 *   - An APK that only works on ARM devices
 *   - An APK that only works on x86 devices
 * The advantage is the size of the APK is reduced by about 4MB.
 * Upload all the APKs to the Play Store and people will download
 * the correct one based on the CPU architecture of their device.
 */
def enableSeparateBuildPerCPUArchitecture = false // change to true

/**
 * Run Proguard to shrink the Java bytecode in release builds.
 */
def enableProguardInReleaseBuilds = false // change to true

android {
splits {
        abi {
            reset()
            enable enableSeparateBuildPerCPUArchitecture
            universalApk false  // If true, also generate a universal APK
            include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
        }
    }
    }

PS: ExpoKit is deprecated and will no longer be supported after SDK 38. If you need to make customizations to your Expo project, we recommend using the bare workflow instead.