Added QR scanner to wallet send card

app/build.gradle

@@ -134,6 +134,9 @@ dependencies {
 
     __32bitImplementation 'io.lbry:lbrysdk32:0.94.1'
     __64bitImplementation 'io.lbry:lbrysdk64:0.94.1'
+
+    implementation ('com.journeyapps:zxing-android-embedded:4.1.0') { transitive = false }
+    implementation 'com.google.zxing:core:3.3.0'
 }
 
 apply plugin: 'com.google.gms.google-services'

app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="io.lbry.browser"
     android:installLocation="auto">
 
@@ -13,6 +14,8 @@
     <uses-permission android:name="com.android.vending.BILLING" />
     <uses-permission android:name="android.permission.WAKE_LOCK"/>
 
+    <uses-sdk tools:overrideLibrary="com.google.zxing.client.android" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

app/src/main/java/io/lbry/browser/ui/wallet/WalletFragment.java

@@ -3,6 +3,7 @@ package io.lbry.browser.ui.wallet;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.graphics.Color;
 import android.net.Uri;
@@ -60,6 +61,9 @@ import java.util.concurrent.Future;
 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;
 
+import com.google.zxing.integration.android.IntentIntegrator;
+import com.google.zxing.integration.android.IntentResult;
+
 import io.lbry.browser.MainActivity;
 import io.lbry.browser.R;
 import io.lbry.browser.adapter.TransactionListAdapter;
@@ -117,6 +121,7 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
     private ImageButton buttonCopyReceiveAddress;
     private MaterialButton buttonGetNewAddress;
     private TextInputEditText inputSendAddress;
+    private ImageButton buttonQRScanAddress;
     private TextInputEditText inputSendAmount;
     private MaterialButton buttonSend;
     private TextView textConnectedEmail;
@@ -162,6 +167,7 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
         buttonCopyReceiveAddress = root.findViewById(R.id.wallet_copy_receive_address);
         buttonGetNewAddress = root.findViewById(R.id.wallet_get_new_address);
         inputSendAddress = root.findViewById(R.id.wallet_input_send_address);
+        buttonQRScanAddress = root.findViewById(R.id.wallet_qr_scan_address);
         inputSendAmount = root.findViewById(R.id.wallet_input_amount);
         buttonSend = root.findViewById(R.id.wallet_send);
         textConnectedEmail = root.findViewById(R.id.wallet_connected_email);
@@ -368,6 +374,12 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
                 copyReceiveAddress();
             }
         });
+        buttonQRScanAddress.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                IntentIntegrator.forSupportFragment(WalletFragment.this).initiateScan();
+            }
+        });
         buttonSend.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
@@ -800,4 +812,13 @@ public class WalletFragment extends BaseFragment implements SdkStatusListener, W
             checkRewardsDriverCard(rewardsDriverText, 0);
         }
     }
+
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == IntentIntegrator.REQUEST_CODE) {
+            IntentResult intentResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
+            String code = intentResult.getContents();
+            inputSendAddress.setText(code);
+        }
+    }
+
 }

app/src/main/res/drawable-anydpi/ic_qr_scanner.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M9.5,6.5v3h-3v-3H9.5M11,5H5v6h6V5L11,5zM9.5,14.5v3h-3v-3H9.5M11,13H5v6h6V13L11,13zM17.5,6.5v3h-3v-3H17.5M19,5h-6v6h6V5L19,5zM13,13h1.5v1.5H13V13zM14.5,14.5H16V16h-1.5V14.5zM16,13h1.5v1.5H16V13zM13,16h1.5v1.5H13V16zM14.5,17.5H16V19h-1.5V17.5zM16,16h1.5v1.5H16V16zM17.5,14.5H19V16h-1.5V14.5zM17.5,17.5H19V19h-1.5V17.5zM22,7h-2V4h-3V2h5V7zM22,22v-5h-2v3h-3v2H22zM2,22h5v-2H4v-3H2V22zM2,2v5h2V4h3V2H2z"/>
+</vector>

app/src/main/res/layout/card_wallet_send_credits.xml

@@ -19,19 +19,42 @@
             android:text="@string/send_credits"
             android:textSize="20sp"/>
 
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_marginTop="8dp"
+            android:orientation="horizontal">
+
             <com.google.android.material.textfield.TextInputLayout
+                android:layout_centerVertical="true"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-            android:hint="@string/recipient_address">
+                android:layout_weight="1"
+                android:hint="@string/recipient_address"
+                android:layout_toStartOf="@id/wallet_qr_scan_address">
+
                 <com.google.android.material.textfield.TextInputEditText
                     android:id="@+id/wallet_input_send_address"
-                android:fontFamily="@font/inter"
-                android:textSize="14sp"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                android:imeOptions="actionNext" />
+                    android:fontFamily="@font/inter"
+                    android:imeOptions="actionNext"
+                    android:textSize="14sp" />
+
             </com.google.android.material.textfield.TextInputLayout>
 
+            <ImageButton
+                android:id="@+id/wallet_qr_scan_address"
+                android:layout_width="48dp"
+                android:layout_height="48dp"
+                android:layout_alignParentEnd="true"
+                android:layout_centerVertical="true"
+                android:layout_marginStart="8dp"
+                android:background="@null"
+                android:src="@drawable/ic_qr_scanner"
+                android:tint="@color/lbryGreen" />
+        </RelativeLayout>
+
         <RelativeLayout
             android:layout_marginTop="16dp"
             android:layout_width="match_parent"