Usage (sample)

Add dependency:

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

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

dependencies {
    implementation 'com.github.TrustWallet:Web3View:0.02'
}

Add internet permission to AndroidManifest.xml

<uses-permission android:name="android.permission.INTERNET" />

Define a view in your layout file:

<?xml version="1.0" encoding="utf-8"?>
...
    <trust.web3.Web3View
        android:id="@+id/web3view"
        android:layout_below="@+id/go"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />
...

And add following code to your activity or fragment for setup: Java

web3.setChainId(1);
web3.setRpcUrl("https://mainnet.infura.io/llyrtzQ3YhkdESt2Fzrk");
web3.setWalletAddress(new Address("0xaa3cc54d7f10fa3a1737e4997ba27c34f330ce16"));

Add listeners:

web3.setOnSignMessageListener(message -> {
    Toast.makeText(this, "Message: " + message.value, Toast.LENGTH_LONG).show();
    web3.onSignCancel(message);
});
web3.setOnSignPersonalMessageListener(message -> {
    Toast.makeText(this, "Personal message: " + message.value, Toast.LENGTH_LONG).show();
    web3.onSignCancel(message);
});
web3.setOnSignTransactionListener(transaction -> {
    Toast.makeText(this, "Transaction: " + transaction.value, Toast.LENGTH_LONG).show();
    web3.onSignCancel(transaction);
});

Send results:

web3.onSignCancel(Message|Tranasction)
web3.onSignMessageSuccessful(message, "0x....");
web3.onSignPersonalMessageSuccessful(message, "0x...");
web3.onSignTransactionSuccessful(transaction, "0x...");
web3.onSignError(Message|Transaction, "some_error");