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dapp-demo-2.jpg安装web3go1git clone https://github.com/bcl-chain/web3.go.git使用gomobile编译成framework，jar，aar1234// generate frameworkgomobile bi
dapp-demo-2.jpg
安装web3go
1 | git clone https://github.com/bcl-chain/web3.go.git |
使用gomobile编译成framework，jar，aar
1 2 3 4 | // generate frameworkgomobile bind -target=ios ./github.com/bcl-chain/web3 .go/mobile// generate arr jargomobile bind -target=android ./github.com/bcl-chain/web3.go/mobile |
把生成的包link到原生app里面
link-web3go.jpg
andoir-getbalence.jpg
下载ETH本地测试工具ganache-cli
gan-cli.jpg
安装依赖
1 2 3 | yarn react-native run-android react-native run-ios |
getBalance代码分析
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | // IOS RCT_EXPORT_METHOD(getBalance: (NSString*) address: (RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject){ // ip地址 Web3goEthereumClient* client = Web3goNewEthereumClient(nodeIP, nil); Web3goContext* ctx = Web3goNewContext(); // 账户地址 Web3goAddress* address1 = Web3goNewAddressFromHex(address, nil); @try { Web3goBigInt* a = [client getBalanceAt:ctx account:address1 number:-1 error:nil]; NSString* ammount = [a getString:10]; NSLog(@%@, ammount); resolve(ammount); } @catch (NSError *exception) { NSLog(@NSError: %@, exception); reject(@NSError: %@, @There were no events, exception); } @finally { NSLog(@finally); } } // android @ReactMethod public void getBalance(String address, Promise promise) { try { web3go.EthereumClient client = Web3go.newEthereumClient(nodeIP); web3go.Context ctx = Web3go.newContext(); web3go.Address address1 = Web3go.newAddressFromHex(address); web3go.BigInt a = client.getBalanceAt(ctx, address1, -1); String ammout = a.getString(10); promise.resolve(ammout); |
- 发表于 2021-04-03 13:52
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- 分类：互联网
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