apkinstaller.js

import { NativeModules } from "react-native";

const { ApkInstaller } = NativeModules;

export default ApkInstaller;

ApkInstallerModule.kt

package com.author.appname

import android.content.Intent
import androidx.core.content.FileProvider
import com.facebook.react.bridge.ReactApplicationContext
import com.facebook.react.bridge.ReactContextBaseJavaModule
import com.facebook.react.bridge.ReactMethod
import java.io.File

class ApkInstallerModule(reactContext: ReactApplicationContext) : ReactContextBaseJavaModule(reactContext) {

    override fun getName(): String {
        return "ApkInstaller"
    }

    @ReactMethod
    fun installApk(apkFilePath: String) {
        val intent = Intent(Intent.ACTION_VIEW).apply {
            val apkUri = FileProvider.getUriForFile(
                reactApplicationContext,
                "${BuildConfig.APPLICATION_ID}.provider",
                File(apkFilePath)
            )
            setDataAndType(apkUri, "application/vnd.android.package-archive")
            flags = Intent.FLAG_ACTIVITY_NEW_TASK
            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
        }
        reactApplicationContext.startActivity(intent)
    }
}

ApkInstallerPackage.kt

package com.author.appname

import com.facebook.react.ReactPackage
import com.facebook.react.bridge.NativeModule
import com.facebook.react.bridge.ReactApplicationContext
import com.facebook.react.uimanager.ViewManager
import java.util.Collections.emptyList

class ApkInstallerPackage : ReactPackage {

    override fun createNativeModules(reactContext: ReactApplicationContext): List<NativeModule> {
        return listOf(ApkInstallerModule(reactContext))
    }

    override fun createViewManagers(reactContext: ReactApplicationContext): List<ViewManager<*, *>> {
        return emptyList()
    }
}

MainApplication.kt

package com.author.appname

import android.app.Application
import com.facebook.react.PackageList
import com.facebook.react.ReactApplication
import com.facebook.react.ReactHost
import com.facebook.react.ReactNativeHost
import com.facebook.react.ReactPackage
import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.load
import com.facebook.react.defaults.DefaultReactHost.getDefaultReactHost
import com.facebook.react.defaults.DefaultReactNativeHost
import com.facebook.react.flipper.ReactNativeFlipper
import com.facebook.soloader.SoLoader

class MainApplication : Application(), ReactApplication {

  override val reactNativeHost: ReactNativeHost =
      object : DefaultReactNativeHost(this) {
        override fun getPackages(): List<ReactPackage> =
            PackageList(this).packages.apply {

              // Code added for initalize the ApkInstaller
              add(ApkInstallerPackage())
              
              
            }

        override fun getJSMainModuleName(): String = "index"

        override fun getUseDeveloperSupport(): Boolean = BuildConfig.DEBUG

        override val isNewArchEnabled: Boolean = BuildConfig.IS_NEW_ARCHITECTURE_ENABLED
        override val isHermesEnabled: Boolean = BuildConfig.IS_HERMES_ENABLED
      }

  override val reactHost: ReactHost
    get() = getDefaultReactHost(this.applicationContext, reactNativeHost)

  override fun onCreate() {
    super.onCreate()
    SoLoader.init(this, false)
    if (BuildConfig.IS_NEW_ARCHITECTURE_ENABLED) {
      // If you opted-in for the New Architecture, we load the native entry point for this app.
      load()
    }
    ReactNativeFlipper.initializeFlipper(this, reactNativeHost.reactInstanceManager)
  }
}