diff --git a/android/app/build.gradle b/android/app/build.gradle
index 804f8143..3d7ea62c 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -98,8 +98,6 @@ dependencies {
     //  for wallet core
     implementation files('libs/armeabi-v7a.jar')
     implementation files('libs/x86.jar')
-    //  for gen qrcode
-//    implementation 'com.github.qingmei2:QrCodeScannerView-Android:1.1.2'
     //  for flurry
     implementation 'com.flurry.android:analytics:11.6.0@aar'
 }
diff --git a/android/app/src/main/java/bitshares/OrgUtils.kt b/android/app/src/main/java/bitshares/OrgUtils.kt
index fdbcce28..bc93041e 100644
--- a/android/app/src/main/java/bitshares/OrgUtils.kt
+++ b/android/app/src/main/java/bitshares/OrgUtils.kt
@@ -1,13 +1,10 @@
 package bitshares
 
-import android.app.Activity
 import android.content.Context
-import android.os.Build
 import android.os.Looper
 import com.btsplusplus.fowallet.BuildConfig
 import com.btsplusplus.fowallet.NativeInterface
 import com.btsplusplus.fowallet.R
-import com.btsplusplus.fowallet.showToast
 import com.btsplusplus.fowallet.utils.BigDecimalHandler
 import com.crashlytics.android.Crashlytics
 import com.fowallet.walletcore.bts.ChainObjectManager
diff --git a/android/app/src/main/java/bitshares/Utils.kt b/android/app/src/main/java/bitshares/Utils.kt
index 7bcab6db..213b0aa7 100644
--- a/android/app/src/main/java/bitshares/Utils.kt
+++ b/android/app/src/main/java/bitshares/Utils.kt
@@ -1,20 +1,22 @@
 package bitshares
 
-import android.app.Activity
 import android.content.ClipData
 import android.content.ClipboardManager
 import android.content.Context
 import android.content.Context.CLIPBOARD_SERVICE
-import android.content.pm.PackageManager
 import android.content.res.Resources
+import android.graphics.Bitmap
 import android.net.ConnectivityManager
 import android.net.wifi.WifiManager
 import android.telephony.TelephonyManager
 import android.util.TypedValue
-import android.widget.ImageView
 import com.btsplusplus.fowallet.BuildConfig
 import com.btsplusplus.fowallet.R
-//import com.qingmei2.library.encode.QRCodeEncoder
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.EncodeHintType
+import com.google.zxing.MultiFormatWriter
+import com.google.zxing.common.CharacterSetECI
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
 import org.json.JSONArray
 import org.json.JSONObject
 import java.io.BufferedReader
@@ -22,6 +24,7 @@ import java.io.InputStreamReader
 import java.math.BigDecimal
 import java.text.SimpleDateFormat
 import java.util.*
+import kotlin.collections.HashMap
 import kotlin.math.floor
 import kotlin.math.max
 import kotlin.math.min
@@ -583,23 +586,41 @@ class Utils {
         /**
          * 创建二维码到 ImageView
          */
-        fun createQRCodeImage(ctx: Context, text: String, out_image_view: ImageView) {
-            //  TODO:3.0
-//            //构造方法：
-//            val qrcode = QRCodeEncoder(ctx as Activity)
-//
-//            qrcode.createQrCode2ImageView(text, out_image_view)
+        private fun createQRBitmap(text: String, width: Int): Bitmap? {
+            try {
+                val hints = HashMap<EncodeHintType, Any>()
+                hints[EncodeHintType.ERROR_CORRECTION] = ErrorCorrectionLevel.H
+                hints[EncodeHintType.CHARACTER_SET] = CharacterSetECI.UTF8
+                hints[EncodeHintType.MARGIN] = 1
 
-            //生成带Icon的二维码
-            // qrCodeEncoder.createQrCode2ImageView(textContent, ivQRCode, R.mipmap.ic_launcher)
+                val bitMatrix = MultiFormatWriter().encode(text, BarcodeFormat.QR_CODE, width, width, hints)
+
+                val h = bitMatrix.height
+                val w = bitMatrix.width
+
+                val black = 0xFF000000.toInt()
+                val white = 0xFFFFFFFF.toInt()
+                val pixels = IntArray(w * h)
+                for (y in 0 until h) {
+                    for (x in 0 until w) {
+                        pixels[y * w + x] = if (bitMatrix.get(x, y)) black else white
+                    }
+                }
+
+                val bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.RGB_565)
+                bitmap.setPixels(pixels, 0, w, 0, 0, w, h)
+
+                return bitmap
+            } catch (e: Exception) {
+                return null
+            }
         }
 
-        fun asyncCreateQRBitmap(ctx: Context, text: String, width: Int): Promise {
+        fun asyncCreateQRBitmap(text: String, width: Int): Promise {
             val p = Promise()
-            //  TODO:3.0
-//            Thread(Runnable {
-//                p.resolve(QRCodeEncoder(ctx as Activity).createQrCode(text, width))
-//            }).start()
+            Thread(Runnable {
+                p.resolve(createQRBitmap(text, width))
+            }).start()
             return p
         }
 
diff --git a/android/app/src/main/java/bitshares/WalletManager.kt b/android/app/src/main/java/bitshares/WalletManager.kt
index 7753e011..909a058c 100644
--- a/android/app/src/main/java/bitshares/WalletManager.kt
+++ b/android/app/src/main/java/bitshares/WalletManager.kt
@@ -345,7 +345,7 @@ class WalletManager {
         account_name_list.put(currentAccountName)
         if (extra_account_name_list != null && extra_account_name_list.length() > 0) {
             val extraNameHash = JSONObject()
-            extra_account_name_list.forEach<String> { name->
+            extra_account_name_list.forEach<String> { name ->
                 if (name!! != currentAccountName) {
                     extraNameHash.put(name, true)
                 }
@@ -365,7 +365,8 @@ class WalletManager {
         assert(unlockInfos.getBoolean("unlockSuccess") && unlockInfos.optBoolean("haveActivePermission"))
 
         //  [统计]
-        btsppLogCustom("loginEvent", jsonObjectfromKVS("mode", login_mode.value, "desc", login_desc ?: "unknown"))
+        btsppLogCustom("loginEvent", jsonObjectfromKVS("mode", login_mode.value, "desc", login_desc
+                ?: "unknown"))
 
         //  成功
         return EImportToWalletStatus.eitws_ok
diff --git a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityDepositAndWithdraw.kt b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityDepositAndWithdraw.kt
index 6a38a3e9..237eebc8 100644
--- a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityDepositAndWithdraw.kt
+++ b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityDepositAndWithdraw.kt
@@ -489,7 +489,7 @@ class ActivityDepositAndWithdraw : BtsppActivity() {
             }
             val deposit_item = it as JSONObject
             //  create qrcode
-            Utils.asyncCreateQRBitmap(ctx, deposit_item.optString("inputAddress"), 150.dp).then { btm ->
+            Utils.asyncCreateQRBitmap(deposit_item.optString("inputAddress"), 150.dp).then { btm ->
                 mask.dismiss()
                 //  转到充币界面
                 goTo(ActivityGatewayDeposit::class.java, true, args = JSONObject().apply {
diff --git a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityIndexServices.kt b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityIndexServices.kt
index a7d9ff9f..823a20b8 100644
--- a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityIndexServices.kt
+++ b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityIndexServices.kt
@@ -3,7 +3,10 @@ package com.btsplusplus.fowallet
 import android.Manifest
 import android.os.Bundle
 import android.view.View
-import bitshares.*
+import bitshares.Promise
+import bitshares.TempManager
+import bitshares.jsonObjectfromKVS
+import bitshares.xmlstring
 import com.fowallet.walletcore.bts.ChainObjectManager
 import com.fowallet.walletcore.bts.WalletManager
 import kotlinx.android.synthetic.main.activity_index_services.*
diff --git a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanAccountName.kt b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanAccountName.kt
index 7076ff50..80afe75a 100644
--- a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanAccountName.kt
+++ b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanAccountName.kt
@@ -4,7 +4,6 @@ import android.os.Bundle
 import android.widget.Button
 import android.widget.TextView
 import bitshares.Promise
-import bitshares.jsonArrayfrom
 import bitshares.jsonObjectfromKVS
 import bitshares.xmlstring
 import com.fowallet.walletcore.bts.ChainObjectManager
diff --git a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPaySuccess.kt b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPaySuccess.kt
index 51ba7d70..e388994f 100644
--- a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPaySuccess.kt
+++ b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPaySuccess.kt
@@ -1,8 +1,6 @@
 package com.btsplusplus.fowallet
 
 import android.os.Bundle
-import bitshares.OrgUtils
-import bitshares.Utils
 import kotlinx.android.synthetic.main.activity_scan_result_pay_success.*
 
 class ActivityScanResultPaySuccess : BtsppActivity() {
diff --git a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPrivateKey.kt b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPrivateKey.kt
index 301ae64c..8c889c94 100644
--- a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPrivateKey.kt
+++ b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultPrivateKey.kt
@@ -63,7 +63,7 @@ class ActivityScanResultPrivateKey : BtsppActivity() {
         findViewById<TextView>(R.id.txt_account_id).text = account_data.getString("id")
         findViewById<TextView>(R.id.txt_account_name).text = account_data.getString("name")
         findViewById<TextView>(R.id.txt_private_key_type).let {
-            it.text = priKeyTypeArray.join(" ")
+            it.text = priKeyTypeArray.toList<String>().joinToString(" ")
         }
 
         //  初始化钱包密码（可选）
diff --git a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultTransfer.kt b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultTransfer.kt
index a338d707..497f44ae 100644
--- a/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultTransfer.kt
+++ b/android/app/src/main/java/com/btsplusplus/fowallet/ActivityScanResultTransfer.kt
@@ -3,7 +3,6 @@ package com.btsplusplus.fowallet
 import android.os.Bundle
 import android.view.View
 import android.widget.EditText
-import android.widget.LinearLayout
 import bitshares.*
 import com.fowallet.walletcore.bts.BitsharesClientManager
 import com.fowallet.walletcore.bts.ChainObjectManager
@@ -300,7 +299,7 @@ class ActivityScanResultTransfer : BtsppActivity() {
         return true
     }
 
-    private fun _processTransferCore(transfer_asset: JSONObject, transfer_n_amount:BigDecimal, op_data:JSONObject, full_account_data: JSONObject) {
+    private fun _processTransferCore(transfer_asset: JSONObject, transfer_n_amount: BigDecimal, op_data: JSONObject, full_account_data: JSONObject) {
         //  请求网络广播
         val mask = ViewMask(R.string.kTipsBeRequesting.xmlstring(this), this)
         mask.show()
diff --git a/android/app/src/main/java/com/google/zxing/client/android/AutoScannerView.java b/android/app/src/main/java/com/google/zxing/client/android/AutoScannerView.java
index dade1fcb..f01bd38d 100644
--- a/android/app/src/main/java/com/google/zxing/client/android/AutoScannerView.java
+++ b/android/app/src/main/java/com/google/zxing/client/android/AutoScannerView.java
@@ -81,7 +81,7 @@ protected void onDraw(Canvas canvas) {
         canvas.drawRect(frame.right + 1, frame.top, width, frame.bottom + 1, maskPaint);
         canvas.drawRect(0, frame.bottom + 1, width, height, maskPaint);
 
-        String text = "将二维码放入框内，即可自动扫描";
+        String text = getResources().getString(R.string.kVcScanAutoScanTips);
         canvas.drawText(text, (width - textPaint.measureText(text)) / 2, frame.bottom + textMarinTop, textPaint);
 
         // 四个角落的三角
diff --git a/android/app/src/main/res/layout/activity_index_services.xml b/android/app/src/main/res/layout/activity_index_services.xml
index 5558d60f..4369b885 100644
--- a/android/app/src/main/res/layout/activity_index_services.xml
+++ b/android/app/src/main/res/layout/activity_index_services.xml
@@ -114,14 +114,13 @@
             android:layout_marginTop="30dp"
             android:orientation="horizontal">
 
-            <!-- TODO:3.0 图标 -->
             <ImageView
                 android:id="@+id/img_icon_qrscan"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
                 android:layout_weight="1"
                 android:layout_gravity="center_vertical"
-                android:src="@drawable/icon_transfer"/>
+                android:src="@drawable/icon_scan"/>
             <TextView
                 android:layout_width="0dp"
                 android:layout_height="match_parent"
diff --git a/android/app/src/main/res/layout/activity_qr_scan.xml b/android/app/src/main/res/layout/activity_qr_scan.xml
index 1da8d348..cf86bad4 100644
--- a/android/app/src/main/res/layout/activity_qr_scan.xml
+++ b/android/app/src/main/res/layout/activity_qr_scan.xml
@@ -52,7 +52,7 @@
 
             <Button
                 android:id="@+id/btn_album"
-                android:layout_width="48dp"
+                android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="right"
                 android:background="#00000000"
diff --git a/android/app/src/main/res/layout/activity_scan_result_pay_success.xml b/android/app/src/main/res/layout/activity_scan_result_pay_success.xml
index 0aa4b283..0c1a069c 100644
--- a/android/app/src/main/res/layout/activity_scan_result_pay_success.xml
+++ b/android/app/src/main/res/layout/activity_scan_result_pay_success.xml
@@ -48,13 +48,12 @@
             android:layout_marginTop="15dp"
             android:gravity="center"
             android:orientation="horizontal">
-            <!-- TOOD:3.0图标 -->
             <ImageView
                 android:id="@+id/img_pay_success"
                 android:layout_width="wrap_content"
                 android:layout_height="match_parent"
                 android:layout_gravity="center_vertical"
-                android:src="@drawable/avatar"/>
+                android:src="@drawable/paysuccess"/>
         </LinearLayout>
 
         <!-- 支付成功Text -->