Added getCertificateFingerprint for Android

android/src/main/kotlin/ru/innim/flutter_login_vk/MethodCallHandler.kt

@@ -12,6 +12,7 @@ import com.vk.api.sdk.VK.login
 import com.vk.api.sdk.VK.logout
 import com.vk.api.sdk.auth.VKAccessToken
 import com.vk.api.sdk.auth.VKScope
+import com.vk.api.sdk.utils.VKUtils
 import com.vk.sdk.api.account.AccountService
 import com.vk.sdk.api.users.UsersService
 import com.vk.sdk.api.users.dto.UsersUserFull
@@ -27,6 +28,7 @@ class MethodCallHandler(private val context: Context, private val loginCallback:
         private const val getAccessToken = "getAccessToken"
         private const val getUserProfile = "getUserProfile"
         private const val getSdkVersion = "getSdkVersion"
+        private const val getCertificateFingerprint = "getCertificateFingerprint"
         private const val initSdk = "initSdk"
         private const val scopeLoginArg = "scope"
         private const val scopeInitArg = "scope"
@@ -52,6 +54,7 @@ class MethodCallHandler(private val context: Context, private val loginCallback:
                 getAccessToken -> sendResult(getAccessToken(), r)
                 getUserProfile -> getUserProfile(r)
                 getSdkVersion -> sendResult(getSdkVersion(), r)
+                getCertificateFingerprint -> sendResult(getCertificateFingerprint(), r)
                 initSdk -> {
                     val initScope = call.argument<List<String>?>(scopeInitArg)
                     initSdk(initScope, r)
@@ -155,6 +158,11 @@ class MethodCallHandler(private val context: Context, private val loginCallback:
         return metaData.metaData["VKSdkVersion"].toString()
     }
 
+    private fun getCertificateFingerprint(): String? {
+        val fingerprints: Array<String?>? = VKUtils.getCertificateFingerprint(context, context.packageName)
+        return fingerprints?.joinToString()
+    }
+
     private fun sendResult(data: Any?, r: MethodChannel.Result) {
         r.success(data)
     }

lib/src/vk_login.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:async/async.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
@@ -12,6 +14,7 @@ class VKLogin {
   static const _methodGetAccessToken = 'getAccessToken';
   static const _methodGetUserProfile = 'getUserProfile';
   static const _methodGetSdkVersion = 'getSdkVersion';
+  static const _methodGetCertificateFingerprint = 'getCertificateFingerprint';
 
   // TODO: rename to `permissions`?
   static const _argLogInScope = 'scope';
@@ -35,16 +38,12 @@ class VKLogin {
   ///
   /// If user is now logged in, than returns `null`.
   Future<VKAccessToken?> get accessToken async {
-    assert(_initialized,
-        'SDK is not initialized. You should call initSdk() first');
+    assert(_initialized, 'SDK is not initialized. You should call initSdk() first');
     if (!_initialized) return null;
 
-    final tokenResult = await _channel
-        .invokeMethod<Map<dynamic, dynamic>>(_methodGetAccessToken);
+    final tokenResult = await _channel.invokeMethod<Map<dynamic, dynamic>>(_methodGetAccessToken);
 
-    return tokenResult != null
-        ? VKAccessToken.fromMap(tokenResult.cast<String, dynamic>())
-        : null;
+    return tokenResult != null ? VKAccessToken.fromMap(tokenResult.cast<String, dynamic>()) : null;
   }
 
   /// Returns currently used VK SDK.
@@ -68,8 +67,7 @@ class VKLogin {
   /// You can pass [scope] (and/or [customScope], see [logIn])
   /// to require listed permissions. If user logged in,
   /// but doesn't have all of this permissions - he will be logged out.
-  Future<Result<bool>> initSdk(
-      {List<VKScope>? scope, List<String>? customScope}) async {
+  Future<Result<bool>> initSdk({List<VKScope>? scope, List<String>? customScope}) async {
     final scopeArg = _getScope(scope: scope, customScope: customScope);
 
     if (debug) {
@@ -108,14 +106,11 @@ class VKLogin {
     }
 
     try {
-      final result = await _channel
-          .invokeMethod<Map<dynamic, dynamic>>(_methodGetUserProfile);
+      final result = await _channel.invokeMethod<Map<dynamic, dynamic>>(_methodGetUserProfile);
 
       if (debug) _log('User profile: $result');
 
-      return Result.value(result != null
-          ? VKUserProfile.fromMap(result.cast<String, dynamic>())
-          : null);
+      return Result.value(result != null ? VKUserProfile.fromMap(result.cast<String, dynamic>()) : null);
     } on PlatformException catch (e) {
       if (debug) _log('Get profile error: $e');
       return Result.error(e);
@@ -151,19 +146,16 @@ class VKLogin {
   ///
   /// If error occure during log in process, than error result
   /// will be returned. And [Result.error] may
-  Future<Result<VKLoginResult>> logIn(
-      {List<VKScope> scope = const [], List<String>? customScope}) async {
-    assert(_initialized,
-        'SDK is not initialized. You should call initSdk() first');
+  Future<Result<VKLoginResult>> logIn({List<VKScope> scope = const [], List<String>? customScope}) async {
+    assert(_initialized, 'SDK is not initialized. You should call initSdk() first');
     if (!_initialized) throw Exception('SDK is not initialized.');
 
     final scopeArg = _getScope(scope: scope, customScope: customScope);
 
     if (debug) _log('Log In with scope $scopeArg');
 
     try {
-      final res = await _channel.invokeMethod<Map<dynamic, dynamic>>(
-          _methodLogIn, {_argLogInScope: scopeArg});
+      final res = await _channel.invokeMethod<Map<dynamic, dynamic>>(_methodLogIn, {_argLogInScope: scopeArg});
 
       if (res == null) {
         return Result.error('Invalid null result');
@@ -176,9 +168,22 @@ class VKLogin {
     }
   }
 
+  /// Get fingerprints for android
+  Future<String?> getCertificateFingerprint() async {
+    assert(_initialized, 'SDK is not initialized. You should call initSdk() first');
+    assert(Platform.isAndroid, 'This method is only available for android.');
+    if (!_initialized) throw Exception('SDK is not initialized.');
+    if (!Platform.isAndroid) return null;
+
+    try {
+      return await _channel.invokeMethod<String?>(_methodGetCertificateFingerprint);
+    } on PlatformException catch (e) {
+      rethrow;
+    }
+  }
+
   Future<void> logOut() async {
-    assert(_initialized,
-        'SDK is not initialized. You should call initSdk() first');
+    assert(_initialized, 'SDK is not initialized. You should call initSdk() first');
     if (!_initialized) return;
 
     if (debug) _log('Log Out');