3

I created a UI part on my android and IOS app and created a smart contract in solidity based on the application. When I click the button in android or Ios app contract need to executed in the backend. So that, I need to interact my smart contract with these apps

2

With Android I was able to do so using the web3j library. Here is my implementation in Android:

Application:

https://github.com/EbenezerGH/Greeter-Android-App

Contract:

https://github.com/EbenezerGH/Greeter-Contract

Dependencies used

api 'org.web3j:infura:3.3.1-android'
api 'org.web3j:core:3.1.1-android'

iOS has a similar implementations w/ web3j

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