Updated on 2026-08-14

app/src/main/java/com/tangem/domain/wallet/DeviceNFCAntennaLocation.kt

@@ -4,15 +4,18 @@ import android.os.Build
 import com.tangem.domain.NFCLocation
 
 class DeviceNFCAntennaLocation {
-    val TAG: String = DeviceNFCAntennaLocation::class.java.simpleName
+    companion object {
+        const val CARD_ON_BACK = 0
+        const val CARD_ON_FRONT = 1
+        const val CARD_ORIENTATION_HORIZONTAL = 0
+        const val CARD_ORIENTATION_VERTICAL = 1
+    }
 
     var orientation: Int = 0
     var fullName: String = ""
     var x: Float = 0.toFloat()
     var y: Float = 0.toFloat()
-    var z: Float = 0.toFloat()
-    var onBackSide: Boolean = false
-    var strength: Float = 0.toFloat()
+    var z: Int = 0
 
     fun getAntennaLocation() {
         val codename = Build.DEVICE
@@ -22,9 +25,7 @@ class DeviceNFCAntennaLocation {
         this.fullName = ""
         this.x = 0.5f
         this.y = 0.35f
-        this.z = 0f
-        this.onBackSide = true
-        this.strength = 1.0f
+        this.z = 0
 
         for (nfcLocation in NFCLocation.values()) {
             if (codename == nfcLocation.codename) {
@@ -32,7 +33,7 @@ class DeviceNFCAntennaLocation {
                 this.orientation = nfcLocation.orientation
                 this.x = nfcLocation.x / 100f
                 this.y = nfcLocation.y / 100f
-                this.z = nfcLocation.z / 100f
+                this.z = nfcLocation.z
             }
         }
     }

app/src/main/java/com/tangem/presentation/activity/MainActivity.java

@@ -17,6 +17,7 @@ import android.view.View;
 import android.view.animation.Animation;
 import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Transformation;
+import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
@@ -77,6 +78,8 @@ public class MainActivity extends AppCompatActivity implements PopupMenu.OnMenuI
         TextView tvNFCHint = findViewById(R.id.tvNFCHint);
         llTapPrompt = findViewById(R.id.llTapPrompt);
         LinearLayout hand = findViewById(R.id.llHand);
+        ImageView ivHandCardHorizontal = findViewById(R.id.ivHandCardHorizontal);
+        ImageView ivHandCardVertical = findViewById(R.id.ivHandCardVertical);
         LinearLayout nfc = findViewById(R.id.llNFC);
         RippleBackground rippleBackground = findViewById(R.id.imNFC);
         FloatingActionButton fab = findViewById(R.id.fab);
@@ -90,11 +93,34 @@ public class MainActivity extends AppCompatActivity implements PopupMenu.OnMenuI
         DeviceNFCAntennaLocation antenna = new DeviceNFCAntennaLocation();
         antenna.getAntennaLocation();
 
+        // set card orientation
+        switch (antenna.getOrientation()) {
+            case DeviceNFCAntennaLocation.CARD_ORIENTATION_HORIZONTAL:
+                ivHandCardHorizontal.setVisibility(View.VISIBLE);
+                ivHandCardVertical.setVisibility(View.GONE);
+                break;
+
+            case DeviceNFCAntennaLocation.CARD_ORIENTATION_VERTICAL:
+                ivHandCardVertical.setVisibility(View.VISIBLE);
+                ivHandCardHorizontal.setVisibility(View.GONE);
+                break;
+        }
+
+        switch (antenna.getZ()) {
+            case DeviceNFCAntennaLocation.CARD_ON_BACK:
+
+                break;
+
+            case DeviceNFCAntennaLocation.CARD_ON_FRONT:
+
+                break;
+        }
+
         // set phone name
         if (!antenna.getFullName().equals(""))
-            tvNFCHint.setText("Scan a banknote with your\n" + antenna.getFullName() + "\n as shown above");
+            tvNFCHint.setText(String.format(getString(R.string.scan_banknote), antenna.getFullName()));
         else
-            tvNFCHint.setText("Scan a banknote with your\n" + getString(R.string.phone) + "\n as shown above");
+            tvNFCHint.setText(String.format(getString(R.string.scan_banknote), getString(R.string.phone)));
 
         // animate
         final RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) hand.getLayoutParams();

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

@@ -71,10 +71,16 @@
                 android:orientation="vertical">
 
                 <ImageView
-                    android:id="@+id/imHand"
+                    android:id="@+id/ivHandCardHorizontal"
                     android:layout_width="190dp"
                     android:layout_height="wrap_content"
-                    app:srcCompat="@drawable/hand_card"/>
+                    app:srcCompat="@drawable/hand_card_horizontal"/>
+
+                <ImageView
+                    android:id="@+id/ivHandCardVertical"
+                    android:layout_width="190dp"
+                    android:layout_height="wrap_content"
+                    app:srcCompat="@drawable/hand_card_vertical"/>
 
             </LinearLayout>
 

app/src/main/res/values/strings.xml

@@ -77,7 +77,7 @@
 
     <!-- MainActivity, Main -->
     <string name="tap_tangem_card">Tap Tangem card with your smartphone</string>
-    <!--<string name="scan_banknote">Scan a banknote with your \n smartphone as shown above</string>-->
+    <string name="scan_banknote">Scan a banknote with your \n %1$s \n as shown above</string>
     <string name="phone">phone</string>
     <string name="last_unspent">Last unspent</string>
     <string name="no_wallet">NO WALLET</string>