怎样在android中用web3j查询账户状态?
我按照官网的文件说明查询一个智能合约的情况。但我得不到想要的结果,这是我的代码: Web3j web3j = Web3jFactory.build(new HttpService(url)); List<Type> inputParameters = new ArrayList<>(); List<TypeReference<?>> outputParameters = new ArrayList<>(); Function function = new Function("getManufacturer", inputParameters, outputParameters); String functionEncoder = FunctionEncoder.encode(function); EthCall response = web3j.ethCall( Transaction.createEthCallTransaction(contractAddress, DefaultBlockParameterName.LAT...