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