Jsclient

Android and JS interactive tools.

--

How to introduce dependency

To get a Git project into your build:

Step 1. Add the JitPack repository to your build file

Add it in your root build.gradle at the end of repositories:

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

Step 2. Add the dependency

dependencies {
implementation 'com.github.ggbandAdapter:Jsclient:1.0.1'
}

--

How to use

First, create a client that interacts with JS.

val tronClient = CallJsClient.Builder().context(this).url("file:///android_asset/tron/TronWeb.html").build() val trxApi = tronClient.create(TrxApi::class.java)

--- Android calls JS method.

Step 1. Writing java interface calling JS method

internal interface TrxApi {

/**
* Access to account information
*/
fun getAccount(address: String): Call<Result<TronAccount>>
/**
* Get account balance
*/
fun getBalance(address: String): Call<Result<String>>
/**
* Transfer
*/
fun sendTRX(@PartMap("action") action: Map<String, String>, @Field("privateKey") privateKey: String): Call<Result<Any>>

}

Step 2. Write JS function for Android to call.

bridge.registerHandler("getAccount", function (data, responseCallback) {
tronWeb.trx.getAccount(data).then(data => {
responseCallback({
"status": true,
"data": data
});
}).catch(error => {
responseCallback({
"status": false,
"message": JSON.stringify(error)
});
});
});
bridge.registerHandler("getBalance", function (data, responseCallback) {
tronWeb.trx.getBalance(data).then(respone => {
responseCallback({
"status": true,
"data": respone
});
}).catch(error => {
responseCallback({
"status": false,
"message": JSON.stringify(error)
});
});
});
bridge.registerHandler("sendTRX", function (data, responseCallback) {
const app = async () => {
let action = data['action'];
let privateKey = data['privateKey'];
let trx = await tronWeb.transactionBuilder.sendTrx(action['to'],
action['amount'], action['from'])
let sign = await tronWeb.trx.sign(trx, privateKey)
let transaction = await tronWeb.trx.sendRawTransaction(
sign)
return transaction
};
app().then((result) => {
responseCallback({
"status": true,
"data": result
});
}).catch((error) => {
responseCallback({
"status": false,
"message": error
});
});
});

--- For more details, please see example