SDK 导入

repositories {
        flatDir {
            dirs 'libs'
        }
    }
    
dependencies {
    implementation(name: 'vechain-verify-sdk', ext: 'aar')
    compileOnly files('sdkenc/classes.jar')
}

import com.shell.SdkManager;

public class MyApplication extends Application {
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        SdkManager.initSdkManager(this);
    }
}

    <application
    android:name=".MyApplication"
    ...>
    ...
    </application>

#sdk
-keep class com.vechain.** { *; }
-dontwarn com.vechain.**

-keep class com.ijiami.** { *;}
-dontwarn com.ijiami.**

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

-keep class com.google.android.gms.** { *;}
-keep class com.google.firebase.** { *;}

-keep class com.tbruyelle.**

##---------------Begin: proguard configuration for Okhttp  ----------

# Okhttp3
# JSR 305 annotations are for embedding nullability information.
-dontwarn javax.annotation.**
# A resource is loaded with a relative path so the package of this class must be preserved.
-keepnames class okhttp3.internal.publicsuffix.PublicSuffixDatabase
# Animal Sniffer compileOnly dependency to ensure APIs are compatible with older versions of Java.
-dontwarn org.codehaus.mojo.animal_sniffer.*
# OkHttp platform used only on JVM and when Conscrypt dependency is available.
-dontwarn okhttp3.internal.platform.ConscryptPlatform

-keep class okio.** { *; }
-keep class okhttp3.** { *; }

##---------------end: proguard configuration for Okhttp  ----------


##---------------Begin: proguard configuration for Gson  ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature

# For using GSON @Expose annotation
-keepattributes *Annotation*

# Gson specific classes
-dontwarn sun.misc.**
#-keep class com.google.gson.stream.** { *; }

# Prevent proguard from stripping interface information from TypeAdapterFactory,
# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
-keep class * implements com.google.gson.TypeAdapterFactory
-keep class * implements com.google.gson.JsonSerializer
-keep class * implements com.google.gson.JsonDeserializer

-keep class com.google.gson.** { *;}

##---------------End: proguard configuration for Gson  ----------


##---------------Begin: proguard configuration for Retrofit  ----------
# Retrofit does reflection on generic parameters. InnerClasses is required to use Signature and
# EnclosingMethod is required to use InnerClasses.
-keepattributes Signature, InnerClasses, EnclosingMethod

# Retain service method parameters when optimizing.
-keepclassmembers,allowshrinking,allowobfuscation interface * {
    @retrofit2.http.* <methods>;
}

# Ignore annotation used for build tooling.
-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement

# Ignore JSR 305 annotations for embedding nullability information.
-dontwarn javax.annotation.**

-keep class retrofit2.** { *; }
##---------------End: proguard configuration for Retrofit  ----------


##---------------Begin: proguard configuration for RxJava  ----------
#rxbinding
-keep class com.jakewharton.**

-keep class com.squareup.**
-keep class com.tbruyelle.**
-keep class com.trello.**
-keep class io.reactivex.** { *;}
-keep class org.hamcrest.**
-keep class org.reactivestreams.**


#-keepattributes Signature-keepattributes Exceptions
#RxJava RxAndroid
-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;
}
##---------------End: proguard configuration for RxJava  ----------

cdab7b2f80d0114ab8a55463a84df26ead9b2c87ff9df2fbb7b8842c63479360

            public class MySignAction implements SignAction {

    @Override
    public void sign(Context context, String challengeId, SignNotifier signNotifier) {
        String certString = "Your certificate string";
        String privateKeyString = "Your private key";

        //More Detail about how to sign the challengeId and get signature, refers to Appendix A: FAQ -  How to Sign ChallengeID
        String signature = CertUtils.getSignInfo(certString, privateKeyString, challengeId);

        signNotifier.onSignResult(signature, "");
    }
}
            

protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
     if (nfcAdapter == null) return;  // NFC not available on this device
 }

protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
     if (nfcAdapter != null) {
            //Applications can use this to check if NFC is enabled. Applications can request                        Settings UI allowing the user to toggle NFC using:
            boolean isEnabled = nfcAdapter.isEnabled();
     }; 
 }