wallet-Android-sdk: A Java repository from vechain

Vechain Wallet Sdk

Introduction

Vechain wallet SDK provides a series of functional interfaces that can help the Android developers, for example: developers can quickly create the purse, the private key signature, call the vechain block interface, data on the chain, and conveniently call vechain connex.

Features:

Setting

Set node url
Get node url

Manage Wallet

Create wallet
Create wallet with mnemonic words
Get checksum address
Change Wallet password
Verify mnemonic words
Verify keystore

Sign

Sign transaction
Sign and send transaction

Support DApp development environment

100% support for the connex.
Support for web3 features :getNodeUrl, getAccounts,sign,getBalance

How to use

Gradle compiler environment（Android Studio）

Reference library

implementation 'com.vechain:wallet:1.0.0'

The main module build.gradle configuration is as follows:

minSdkVersion 21

Android SDK requires minimum system version API 19(Android 5.0).

SDK initialization Inherit the android.app.Application class and implement the following methods:

protected void attachBaseContext(Context base) {
        super.attachBaseContext(LanguageManager.setLocale(base));
        SdkManager.initSdkManager(this);

        //Set it as a main_net environment
        WalletUtils.setNodeUrl(NodeUrl.MAIN_NODE);
 }

When app is in testing, it is set as a test net environment:

WalletUtils.setNodeUrl(NodeUrl.TEST_NODE);

Or if you have a corresponding node server, you can change it to your own node server:

String customUrl = "https://www.yourCustomNodeUrl.com";
NodeUrl.CUSTOM_NODE.setUrl(customUrl);
WalletUtils.setNodeUrl(NodeUrl.CUSTOM_NODE);

Refer to the following API for more detailed usage

API Reference：

API Reference for VeChain Android app developers

Packing confusion instructions

Add the following in the Proguard obfuscation configuration file:

-keep class com.vechain.**{*;}

#Gson
-keepattributes Signature
-keepattributes *Annotation*
-keep class sun.misc.Unsafe { *; }
-keep class com.google.gson.stream.** { *; }
-keep class com.google.gson.examples.android.model.** { *; }
-keep class com.google.gson.* { *;}
-dontwarn com.google.gson.**


#okhttp
-dontwarn okhttp3.**
-dontwarn okio.**
-dontwarn javax.annotation.**
-dontwarn org.conscrypt.**
#A resource is loaded with a relative path so the package of this class must be preserved.
-keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase


#Retrofit
#Retain generic type information for use by reflection by converters and adapters.
-keepattributes Signature
#Retain service method parameters.
-keepclassmembernames,allowobfuscation interface * {
    @retrofit2.http.* <methods>;
}
#Ignore annotation used for build tooling.
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement


#Retrofit
-dontwarn retrofit2.**
-keep class retrofit2.** { *; }
#-keepattributes Signature-keepattributes Exceptions
#RxJava RxAndroid
-dontwarn sun.misc.**
-keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
    long producerIndex;
    long consumerIndex;
}
-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef {
    rx.internal.util.atomic.LinkedQueueNode producerNode;
}
-keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueConsumerNodeRef {
    rx.internal.util.atomic.LinkedQueueNode consumerNode;
}

License

Vechain Wallet SDK is licensed under the MIT LICENSE, also included in LICENSE file in the repository.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vechain/wallet-Android-sdk