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Android

Add Wallet Service to Your Android Project

Prerequisites

Make sure that your project meets the following requirements:
  • Targets API Level 23 (Marshmallow) or higher
  • Uses Android 6.0 or higher
  • Uses Jetpack (AndroidX)​

Create a Particle Project and App

Before you can add Wallet Service to your Android app, you need to create a Particle project to connect to your Android app. Visit Particle Dashboard to learn more about Particle projects and apps.

Add the Wallet Service SDK to your app

Declare them in your module (app-level) Gradle file (usually app/build.gradle).
Kotlin
Groovy
repositories {
google()
mavenCentral()
maven { setUrl("https://jitpack.io") }
//...
}
​
dependencies {
// Particle Auth Service
implementation("network.particle:auth-service:${latest_version}")
// Particle Wallet Core Api
implementation("network.particle:api-service-api:${latest_version}")
// Particle Wallet GUI, you can remove it if custom GUI.
implementation("network.particle:wallet-service:${latest_version}")
//...
}
repositories {
google()
mavenCentral()
maven { url "https://jitpack.io" }
//...
}
​
dependencies {
// Particle Auth Service
implementation 'network.particle:auth-service${latest_version}'
// Particle Wallet Api
implementation 'network.particle:wallet-service-api${latest_version}'
// Particle Wallet GUI, you can remove it if custom GUI.
implementation 'network.particle:wallet-service${latest_version}'
//...
}
The Wallet Service can only be used after a successful log-in with Auth Service.
Wallet Service depends on Auth Service, you must import Auth Service.
If you want to receive release updates, subscribe to our GitHub repository.

Wallet Core Reference

Initialize the SDK

class App : Application() {
override fun onCreate() {
super.onCreate()
//init Particle SDK for solana chain
ParticleNetwork.init(this, Env.DEV, SolanaChain(SolanaChainId.Mainnet))
//init wallet service
/**
* supportChains is optional, if not provided, all chains will be supported
* if provided, only the chains in the list will be supported,Only the main chain is required,
* if you want to support devnet, you can call showTestNetworks() to show the devnet networks
*/
val supportChains = mutableListOf(
SolanaChain(SolanaChainId.Mainnet),
EthereumChain(EthereumChainId.Mainnet),
BscChain(BscChainId.Mainnet)
)
ParticleWallet.init(this,supportChains).apply {
showTestNetworks() // show test networks,default is hide
hideManageWallet() // hide manage wallet item in setting page,default is show
}
}
}

Solana Service

Get the real-time exchange rate of the Solana token

Kotlin
// call enhanced method: enhancedGetPrice
ParticleNetwork.solana.getPrice(addresses, currencies)

Get token list and NFT list by giving an address

Kotlin
// call enhanced method: enhancedGetTokensAndNFTs
//fetch from server、save to db and return
ParticleNetwork.solana.getTokensAndNFTs(address)
//get data from db only
ParticleNetwork.solana.getTokensAndNFTsFromDB(address)

Get parsed transaction history by giving an address

Kotlin
// call enhanced method: enhancedGetTransactionsByAddress
ParticleNetwork.solana.getTransactionsByAddress(address, optBody)
//get trans from db
ParticleNetwork.solana.getTransactionsByAddressFromDB(address, optBody)

Serialize unsigned transaction

Kotlin
// call enhanced method: enhancedSerializeTransaction
val output = ParticleNetwork.solana.serializeTransaction(txBody)
​
//send transaction with Particle Auth
ParticleNetwork.signAndSendTransaction(activity,
output.result.transaction.serialized, callback);

Get Token info list

Kotlin
// get solana chain all SPL token info
ParticleNetwork.solana.getTokenList()

Access 👉 any RPC ​

Kotlin
// such as getBalance
ParticleNetwork.solana.rpc("getBalance",
listOf("8FE27ioQh3T7o22QsYVT5Re8NnHFqmFNbdqwiF3ywuZQ"))

Add Custom Tokens

Kotlin
// publicKey is your user public publicKey
val publicKey = ParticleNetwork.getPublicKey()
// tokenAddresses is token contract address
val tokenList = listOf("Fm9rHUTF5v3hwMLbStjZXqNBBoZyGriQaFM6sTFz3K8A")
// if tokens are existed in blockchain, will return them.
// if no tokens existed in blockchain, will return empty list.
ParticleNetwork.solana.addCustomTokens(publicKey, tokenList)

EVM Service

Get the real-time exchange rate of the EVM token

Kotlin
val parmas1 = arrayListOf("native")
val parmas2 = arrayListOf("usd")
val rateResultList = ParticleNetwork.evm.getPrice(parmas1, parmas2)

Get token list and NFT list by giving an address

Kotlin
// call enhanced method: particle_getTokensAndNFTs
//fetch from server、save to db return result
ParticleNetwork.evm.getTokensAndNFTs(address)
//get data from db only
ParticleNetwork.evm.getTokensAndNFTsFromDB(address)

Get parsed transaction history by giving an address

Kotlin
// call enhanced method: particle_getTransactionsByAddress
ParticleNetwork.evm.getTransactionsByAddress(address)
//get data from db only
ParticleNetwork.evm.getTransactionsByAddressFromDB(address)

Get suggested GasFees

Kotlin
ParticleNetwork.evm.suggestedGasFees()

Get Token info list

Kotlin
// get any EVM chain all token info
ParticleNetwork.evm.getTokenList()

Access 👉 any RPC ​

Kotlin
// such as eth_estimateGas
ParticleNetwork.evm.rpc("eth_estimateGas",listOf(mapOf("from" to "0xXXX...", "to" to "0xXXX...")))

Read Contract

Kotlin
// example for evm read contract
private suspend fun readContract() {
ParticleNetwork.evm.readContract(
"0xd000f000aa1f8accbd5815056ea32a54777b2fc4",
"balanceOf",
listOf("0xBbc1CA8776EfDeC12C75e218C64e96ce52aC6671")
)
}

Write Contract

Kotlin
// example for evm write contract
// mint 1 NFT in kovan testnet, the from is sender address or user address in general.
// result is a transaciton string which presented in hex format.
private suspend fun writeContract() {
val params = ContractParams.customAbiEncodeFunctionCall(
contractAddress = "0xd000f000aa1f8accbd5815056ea32a54777b2fc4",
methodName = "mint",
params = listOf("1")
)
ParticleNetwork.evm.writeContract(
"0xd000f000aa1f8accbd5815056ea32a54777b2fc4",
params
)
}

Add Custom Tokens

Kotlin
// address is your user public address
val address = ParticleNetwork.getAddress()
// tokenAddresses is token contract address
val tokenList = listOf("Fm9rHUTF5v3hwMLbStjZXqNBBoZyGriQaFM6sTFz3K8A")
// if tokens are existed in blockchain, will return them.
// if no tokens existed in blockchain, will return empty list.
ParticleNetwork.evm.addCustomTokens(address, tokenList)

Serialize the data of any contract

Kotlin
ParticleNetwork.evm.abiEncodeFunctionCall(params: List<Any>)
ParticleNetwork.evm.abiEncodeFunctionCall(contractAddress: String,method: String,params: List<Any>,json: String = "")
​
//The above two methods work the same.
// 1. The first parameter is contract address
// 2. The second parameter is the name of the method to be called.
// Currently, we support:'erc20_transfer'、'erc20_approve'、'erc20_transferFrom'、'erc721_safeTransferFrom'、'erc1155_safeTransferrom'
// or arbitrary method call: 'custom_{methodName}'
// for example if you need to call mint method, then pass custom_mint as parameter
// 3. The third parameter is the parameter value array of the method to be called, which should correspond to the above method.
// 4. The fourth parameter is optional，an ABI JOSN string
// For erc20/721/1155 methods we support, this parameter is not needed
// And if your contract is verified at the chain's scan website, this parameter is not needed
​

Serialize the data of stardard contracts

Kotlin
// call 'transfer(to, amount)' function in erc20
suspend fun erc20Transfer(){
val contractAddress =""
val to=""
val amount:BigInteger = BigInteger.valueOf(1111)
ParticleNetwork.evm.erc20Transfer(contractAddress,to,amount)
}
// call 'approve(spender, amount)' function in erc20
suspend fun erc20Approve() {
val contractAddress = ""
val spender = ""
val amount = BigInteger.valueOf(1111)
val result: ResponseBody =
ParticleNetwork.evm.erc20Approve(contractAddress, spender, amount)
}
// call 'transferFrom(from, to, amount)' function in erc20
suspend fun erc20TransferFrom() {
val contractAddress = ""
val from = ""
val to = ""
val amount = BigInteger.valueOf(1111)
val result: ResponseBody =
ParticleNetwork.evm.erc20TransferFrom(contractAddress, from, to, amount)
}
// call 'safeTransferFrom(from, to, tokenId)' function in erc721
suspend fun erc721SafeTransferFrom() {
val contractAddress = ""
val from = ""
val to = ""
val tokenId = ""
val result: ResponseBody =
ParticleNetwork.evm.erc721SafeTransferFrom(contractAddress, from, to, tokenId)
}
// call 'safeTransferFrom(from, to, id, amount, data)' function in erc1155
suspend fun erc1155SafeTransferFrom() {
val contractAddress = ""
val from = ""
val to = ""
val id = ""
val amount = BigInteger.valueOf(1111)
val data: String;
ParticleNetwork.evm.erc1155SafeTransferFrom(contractAddress, from, to, id, amount, data)
}

Create Transaction

Kotlin
/**
*
* from: sender address.
* to: receiver address or contract address.
* value: (optional) hex of the value sent with this transaction.
* contractParams: (optional) call contract function params.
* type: default value "0x2"(EIP1559), "0x1"(EIP2930), "0x0"(Legacy)
* nonce: default value "0x0", particle auth manage nonce without cancel or speed transaction.
* gasFeeLevel: default value TransGasFeeMode.medium, transaction gas fee level.
* action: detault TxAction.normal. if you cancel/speed tracsaction, set the vaule.
*/
val tx = ParticleNetwork.evm.createTransaction(from, to, value, contractParams,
type, nonce, gasFeeLevel, action)
​
//send transaction with particle auth
ParticleNetwork.signAndSendTransaction(activity, tx.serialize(), callback)
you can call contract function by set contractParams:
  • ContractParams.erc20Transfer()
  • ContractParams.erc20Approve()
  • ContractParams.erc20TransferFrom()
  • ContractParams.erc721SafeTransferFrom()
  • ContractParams.erc1155SafeTransferFrom()
  • ContractParams.customAbiEncodeFunctionCall()

Read Contract

Kotlin
// create tx data
val tx = TxData(null, "0x0", null, from, to ,null, data, ParticleNetwork.chainId.toHexString())
​
//Integer block number, or the string 'latest', 'earliest' or 'pending'
val quantity = "latest"
//call eth_call rpc
val output = ParticleNetwork.evm.rpc("eth_call", listOf(tx, quantity))

Wallet UI Reference

Set pay feature, default support pay feature.

Kotlin
Java
// You can disable pay feature in UI, default is true.
ParticleNetwork.enablePay(false)
ParticleWallet.enablePay(ParticleNetwork.INSTANCE,false);

Custom Wallet UI

Control show or hide test network, manage wallet page, support chain.
Because ParticleWalletGUI dependent on Particle Connect, Particle Connect initialize chain will add to support chain automatically.
// show or hide test network, default is false.
ParticleWallet.showTestNetworks()
​
// show or hide manage wallet page.
ParticleWallet.hideManageWallet()
​
// support chain, Particle Connect initialize chain will add as a support chain automatically.
// default support all chains in Particle Network base
ParticleWallet.init(context,supportChains)
​
//You can initialize the above configuration with a single statement
ParticleWallet.init(
context,
supportChains,
).apply {
showTestNetworks() // show test networks,default is hide
hideManageWallet() // hide manage wallet,default is show
}

Open Wallet

Kotlin
Java
PNRouter.build(RouterPath.Wallet).navigation()
PNRouter.build(RouterPath.Wallet).navigation();
navigation()can add parameters

Open Send Token

Kotiln
Java
//open send spl token
val params = WalletSendParams(tokenAddress, toAddress?, toAmount?)
PNRouter.build(RouterPath.TokenSend, params).navigation()
​
//open send default token by chain name
PNRouter.build(RouterPath.TokenSend).navigation()
//open send spl token
WalletSendParams params = new WalletSendParams(tokenAddress, toAddress, toAmount);
PNRouter.build(RouterPath.TokenSend, params).navigation();
​
//open send default token by chain name
PNRouter.build(RouterPath.TokenSend).navigation();
WalletSendParam has three parameters:
  1. 1.
    tokenAddress: token mint address
  2. 2.
    toAddress: receiver address (optional)
  3. 3.
    toAmount: send token amount, token minimum unit (optional)

Open Receive Token

Display your address QRCode.
Kotlin
Java
PNRouter.build(RouterPath.TokenReceive).navigation()
PNRouter.build(RouterPath.TokenReceive).navigation();

Open Transaction Records

Kotlin
Java
//open spl token transaction records
val params = TokenTransactionRecordsParams(tokenAddress)
PNRouter.build(RouterPath.TokenTransactionRecords, params).navigation()
​
//open default token transaction records by chain name
PNRouter.build(RouterPath.TokenTransactionRecords).navigation()
//open spl token transaction records
TokenTransactionRecordsParams params = new TokenTransactionRecordsParams(tokenAddress);
PNRouter.build(RouterPath.TokenTransactionRecords, params).navigation();
​
//open default token transaction records by chain name
PNRouter.build(RouterPath.TokenTransactionRecords).navigation();

Open NFT Details

Kotlin
Java
var params = NftDetailParams("nftMint")
PNRouter.build(RouterPath.NftDetails, params).navigation()
NftDetailParams params = new NftDetailParams("nftMint")
PNRouter.build(RouterPath.NftDetails, params).navigation()
​
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On this page
Add Wallet Service to Your Android Project
Prerequisites
Create a Particle Project and App
Add the Wallet Service SDK to your app
Wallet Core Reference
Initialize the SDK
Solana Service
EVM Service
Wallet UI Reference
Set pay feature, default support pay feature.
Custom Wallet UI
Open Wallet
Open Send Token
Open Receive Token
Open Transaction Records
Open NFT Details