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黑客接单(无定金黑客网站找黑客帮忙)
dapp-demo-2.jpg
安装web3go
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git clone https://github.com/bcl-chain/web3.go.git |
使用gomobile编译成framework，jar，aar
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// 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
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yarn
react-native run-androidreact-native run-ios |
getBalance代码分析
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// IOS
RCT_EXPORT_METHOD(getBalance:(NSString*) address:(RCTPromiseResolveBlock)resolverejecter:(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@ReactMethodpublic 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); |
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