interc GO区块链 2021-01-06

基于区块链的毕业设计Ethereum Android SDK – 以太坊Android SDK

本文提供基于区块链的毕业设计国外最新区块链项目源码下载，包括solidity,eth,fabric等blockchain区块链,基于区块链的毕业设计Ethereum Android SDK – 以太坊Android SDK 是一篇很好的国外资料

Ethereum Android SDK

Getting Started
- Adding Ethereum SDK as a Maven or Gradle Dependency
- Basic Usage
Features at a Glance
- Create Wallet
- Import Wallet By Keystore
- Import Wallet By Private Key
- Export Keystore
- Export Private Key
- Ethereum Balance
- ERC20 token balance
- Send Ether
- Send ERC20 Token

Getting Started

Add jitpack to your root gradle file at the end of repositories:

allprojects {     repositories { 	...         maven { url 'https://jitpack.io'}     } }

Adding Ethereum SDK as a Maven or Gradle Dependency

For “Maven” add this dependency to your module:

<dependency> 	    <groupId>com.github.centerprime</groupId> 	    <artifactId>Ethereum-Client-SDK</artifactId> 	    <version>1.0.8</version> </dependency>

For “Gradle” add this dependency to your module:

dependencies {     implementation 'com.github.centerprime:Ethereum-Client-SDK:1.0.8' }

Basic Usage

Once you have the dependencies set up you can start using CenterPrime by creating a Ethereum Wallet:

import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.Toast; import com.centerprime.ethereum_sdk.EthManager; import io.reactivex.android.schedulers.AndroidSchedulers; import io.reactivex.schedulers.Schedulers;  public class MainActivity extends AppCompatActivity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          EthManager ethManager = EthManager.getInstance();          String password = "xxxx12345";          ethManager.createWallet(password, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(wallet -> {                     String walletAddress = wallet.getAddress();                     String keystore = wallet.getKeystore();                 }, error -> {                  });     } }

Congratulations! Now you are a CenterPrime user.

Features at a Glance

Create Wallet

You can create Ethereum Wallet.

EthManager ethManager = EthManager.getInstance(); String password = "xxxx12345"; ethManager.createWallet(password, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(wallet -> {                     String walletAddress = wallet.getAddress();                     String keystore = wallet.getKeystore();                 }, error -> {                  });

Import Wallet By Keystore

To import Ethereum wallet by keystore you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String password = "xxxx12345"; String keystore = "JSON_FORMAT"; ethManager.importFromKeystore(keystore, password, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(walletAddress -> {                      Toast.makeText(this, "Wallet Address : " + walletAddress, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Import Wallet By Private Key

To import Ethereum wallet by private key you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String privateKey = "PRIVATE_KEY"; ethManager.importFromPrivateKey(privateKey, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(walletAddress -> {                      Toast.makeText(this, "Wallet Address : " + walletAddress, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Export Keystore

If you want to export wallet address’s keystore you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; ethManager.getKeyStore(walletAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(keystore -> {                      Toast.makeText(this, "Keystore : " + keystore, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Export Private Key

If you want to export wallet address’s private key you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; ethManager.exportPrivateKey(walletAddress, password,this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(privatekey -> {                      Toast.makeText(this, "Private Key : " + privatekey, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Ethereum Balance

To get balance of Ethereum wallet address you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; ethManager.balanceInEth(walletAddress)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(balance -> {                      Toast.makeText(this, "Eth Balance : " + balance, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

ERC20 token balance

To get balance of ERC20 token you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; String erc20TokenContractAddress = "ERC_20_TOKEN_CONTRACT_ADDRESS"; ethManager.getTokenBalance(walletAddress, password, erc20TokenContractAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(balance -> {                      Toast.makeText(this, "Token Balance : " + balance, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Send Ether

To send Ethereum to another wallet address you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; BigInteger gasPrice = new BigInteger("GAS_PRICE"); BigInteger gasLimit = new BigInteger("GAS_LIMIT"); BigDecimal etherAmount = new BigDecimal("ETHER_AMOUNT"); String receiverAddress = "RECEIVER_WALLET_ADDRESS"; ethManager.sendEther(walletAddress, password,gasPrice,gasLimit,etherAmount, receiverAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(tx -> {                      Toast.makeText(this, "TX : " + tx, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Send ERC20 token

To send ERC20 Token to another wallet address you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; BigInteger gasPrice = new BigInteger("GAS_PRICE"); BigInteger gasLimit = new BigInteger("GAS_LIMIT"); BigDecimal tokenAmount = new BigDecimal("TOKEN_AMOUNT"); String receiverAddress = "RECEIVER_WALLET_ADDRESS"; String erc20TokenContractAddress = "ERC20_TOKEN_CONTRACT_ADDRESS"; ethManager.sendToken(walletAddress, password, gasPrice, gasLimit, tokenAmount, receiverAddress, erc20TokenContractAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(tx -> {                      Toast.makeText(this, "TX : " + tx, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Ethereum Android SDK

Getting Started
- Adding Ethereum SDK as a Maven or Gradle Dependency
- Basic Usage
Features at a Glance
- Create Wallet
- Import Wallet By Keystore
- Import Wallet By Private Key
- Export Keystore
- Export Private Key
- Ethereum Balance
- ERC20 token balance
- Send Ether
- Send ERC20 Token

Getting Started

Add jitpack to your root gradle file at the end of repositories:

allprojects {     repositories { 	...         maven { url 'https://jitpack.io'}     } }

Adding Ethereum SDK as a Maven or Gradle Dependency

For “Maven” add this dependency to your module:

<dependency> 	    <groupId>com.github.centerprime</groupId> 	    <artifactId>Ethereum-Client-SDK</artifactId> 	    <version>1.0.8</version> </dependency>

For “Gradle” add this dependency to your module:

dependencies {     implementation 'com.github.centerprime:Ethereum-Client-SDK:1.0.8' }

Basic Usage

Once you have the dependencies set up you can start using CenterPrime by creating a Ethereum Wallet:

import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.Toast; import com.centerprime.ethereum_sdk.EthManager; import io.reactivex.android.schedulers.AndroidSchedulers; import io.reactivex.schedulers.Schedulers;  public class MainActivity extends AppCompatActivity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          EthManager ethManager = EthManager.getInstance();          String password = "xxxx12345";          ethManager.createWallet(password, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(wallet -> {                     String walletAddress = wallet.getAddress();                     String keystore = wallet.getKeystore();                 }, error -> {                  });     } }

Congratulations! Now you are a CenterPrime user.

Features at a Glance

Create Wallet

You can create Ethereum Wallet.

EthManager ethManager = EthManager.getInstance(); String password = "xxxx12345"; ethManager.createWallet(password, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(wallet -> {                     String walletAddress = wallet.getAddress();                     String keystore = wallet.getKeystore();                 }, error -> {                  });

Import Wallet By Keystore

To import Ethereum wallet by keystore you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String password = "xxxx12345"; String keystore = "JSON_FORMAT"; ethManager.importFromKeystore(keystore, password, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(walletAddress -> {                      Toast.makeText(this, "Wallet Address : " + walletAddress, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Import Wallet By Private Key

To import Ethereum wallet by private key you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String privateKey = "PRIVATE_KEY"; ethManager.importFromPrivateKey(privateKey, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(walletAddress -> {                      Toast.makeText(this, "Wallet Address : " + walletAddress, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Export Keystore

If you want to export wallet address’s keystore you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; ethManager.getKeyStore(walletAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(keystore -> {                      Toast.makeText(this, "Keystore : " + keystore, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Export Private Key

If you want to export wallet address’s private key you can use a code written below.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; ethManager.exportPrivateKey(walletAddress, password,this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(privatekey -> {                      Toast.makeText(this, "Private Key : " + privatekey, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Ethereum Balance

To get balance of Ethereum wallet address you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; ethManager.balanceInEth(walletAddress)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(balance -> {                      Toast.makeText(this, "Eth Balance : " + balance, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

ERC20 token balance

To get balance of ERC20 token you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; String erc20TokenContractAddress = "ERC_20_TOKEN_CONTRACT_ADDRESS"; ethManager.getTokenBalance(walletAddress, password, erc20TokenContractAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(balance -> {                      Toast.makeText(this, "Token Balance : " + balance, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Send Ether

To send Ethereum to another wallet address you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; BigInteger gasPrice = new BigInteger("GAS_PRICE"); BigInteger gasLimit = new BigInteger("GAS_LIMIT"); BigDecimal etherAmount = new BigDecimal("ETHER_AMOUNT"); String receiverAddress = "RECEIVER_WALLET_ADDRESS"; ethManager.sendEther(walletAddress, password,gasPrice,gasLimit,etherAmount, receiverAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(tx -> {                      Toast.makeText(this, "TX : " + tx, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

Send ERC20 token

To send ERC20 Token to another wallet address you can use this code.

EthManager ethManager = EthManager.getInstance(); String walletAddress = "WALLET_ADDRESS"; String password = "WALLET_PASSWORD"; BigInteger gasPrice = new BigInteger("GAS_PRICE"); BigInteger gasLimit = new BigInteger("GAS_LIMIT"); BigDecimal tokenAmount = new BigDecimal("TOKEN_AMOUNT"); String receiverAddress = "RECEIVER_WALLET_ADDRESS"; String erc20TokenContractAddress = "ERC20_TOKEN_CONTRACT_ADDRESS"; ethManager.sendToken(walletAddress, password, gasPrice, gasLimit, tokenAmount, receiverAddress, erc20TokenContractAddress, this)                 .subscribeOn(Schedulers.io())                 .observeOn(AndroidSchedulers.mainThread())                 .subscribe(tx -> {                      Toast.makeText(this, "TX : " + tx, Toast.LENGTH_SHORT).show();                  }, error -> {                  });

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基于区块链的毕业设计Ethereum Android SDK – 以太坊Android SDK

Ethereum Android SDK

Table of Contents

Getting Started

Add jitpack to your root gradle file at the end of repositories:

Adding Ethereum SDK as a Maven or Gradle Dependency

Basic Usage

Features at a Glance

Create Wallet

Import Wallet By Keystore

Import Wallet By Private Key

Export Keystore

Export Private Key

Ethereum Balance

ERC20 token balance

Send Ether

Send ERC20 token

Ethereum Android SDK

Table of Contents

Getting Started

Add jitpack to your root gradle file at the end of repositories:

Adding Ethereum SDK as a Maven or Gradle Dependency

Basic Usage

Features at a Glance

Create Wallet

Import Wallet By Keystore

Import Wallet By Private Key

Export Keystore

Export Private Key

Ethereum Balance

ERC20 token balance

Send Ether

Send ERC20 token

interc 普通

Ethereum Android SDK

Table of Contents

Getting Started

Add jitpack to your root gradle file at the end of repositories:

Adding Ethereum SDK as a Maven or Gradle Dependency

Basic Usage

Features at a Glance

Create Wallet

Import Wallet By Keystore

Import Wallet By Private Key

Export Keystore

Export Private Key

Ethereum Balance

ERC20 token balance

Send Ether

Send ERC20 token

Ethereum Android SDK

Table of Contents

Getting Started

Add jitpack to your root gradle file at the end of repositories:

Adding Ethereum SDK as a Maven or Gradle Dependency

Basic Usage

Features at a Glance

Create Wallet

Import Wallet By Keystore

Import Wallet By Private Key

Export Keystore

Export Private Key

Ethereum Balance

ERC20 token balance

Send Ether

Send ERC20 token

interc 普通

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