Add NFC related prompts (on/off/default/not supported), release version 1.0.17

app/build.gradle.kts

@@ -11,8 +11,8 @@ android {
         applicationId = "sh.sar.basedbank"
         minSdk = 26
         targetSdk = 36
-        versionCode = 15
+        versionCode = 16
-        versionName = "1.0.16"
+        versionName = "1.0.17"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

app/src/main/java/sh/sar/basedbank/ui/home/DashboardFragment.kt

@@ -26,6 +26,7 @@ import sh.sar.basedbank.api.mib.MibCard
 import sh.sar.basedbank.api.mib.MibFinanceDeal
 import sh.sar.basedbank.util.bmlapi.BmlCardParser
 import sh.sar.basedbank.util.CredentialStore
+import sh.sar.basedbank.util.NfcPaymentUtil
 import sh.sar.basedbank.util.PaymvQrParser
 import kotlin.math.abs
 import sh.sar.basedbank.databinding.FragmentDashboardBinding
@@ -426,11 +427,13 @@ class DashboardFragment : Fragment() {
                     if (isMib) {
                         Toast.makeText(requireContext(), R.string.mib_qr_nfc_not_supported, Toast.LENGTH_SHORT).show()
                     } else {
-                        val accountNumber = (item as CardItem.Bml).account.accountNumber
+                        NfcPaymentUtil.checkAndProceed(requireContext()) {
-                        (requireActivity() as HomeActivity).navigateTo(
+                            val accountNumber = (item as CardItem.Bml).account.accountNumber
-                            R.id.nav_pay_with_card,
+                            (requireActivity() as HomeActivity).navigateTo(
-                            CardsFragment.newInstanceWithAutoTapMode(accountNumber)
+                                R.id.nav_pay_with_card,
-                        )
+                                CardsFragment.newInstanceWithAutoTapMode(accountNumber)
+                            )
+                        }
                     }
                 }
             }

app/src/main/java/sh/sar/basedbank/ui/home/PayWithCardFragment.kt

@@ -48,6 +48,7 @@ import sh.sar.basedbank.util.CardsCache
 import sh.sar.basedbank.util.CredentialStore
 import sh.sar.basedbank.util.Totp
 import sh.sar.basedbank.util.bmlapi.BmlCardParser
+import sh.sar.basedbank.util.NfcPaymentUtil
 import sh.sar.basedbank.util.PaymvQrParser
 import kotlin.math.abs
 
@@ -232,11 +233,13 @@ ViewCompat.setOnApplyWindowInsetsListener(binding.contentLayout) { v, insets ->
                 return@setOnClickListener
             }
             val bmlItem = item as CardItem.Bml
-            val prefs = requireContext().getSharedPreferences("prefs", Context.MODE_PRIVATE)
+            NfcPaymentUtil.checkAndProceed(requireContext()) {
-            if (prefs.getBoolean("biometrics_transfer_confirm", false)) {
+                val prefs = requireContext().getSharedPreferences("prefs", Context.MODE_PRIVATE)
-                showBiometricPromptForTap(bmlItem)
+                if (prefs.getBoolean("biometrics_transfer_confirm", false)) {
-            } else {
+                    showBiometricPromptForTap(bmlItem)
-                setTapMode(true, bmlItem)
+                } else {
+                    setTapMode(true, bmlItem)
+                }
             }
         }
 
@@ -742,11 +745,13 @@ ViewCompat.setOnApplyWindowInsetsListener(binding.contentLayout) { v, insets ->
                     currentCardPosition = pos
                     binding.rvCards.scrollToPosition(pos)
                 }
-                val prefs = requireContext().getSharedPreferences("prefs", Context.MODE_PRIVATE)
+                NfcPaymentUtil.checkAndProceed(requireContext()) {
-                if (prefs.getBoolean("biometrics_transfer_confirm", false)) {
+                    val prefs = requireContext().getSharedPreferences("prefs", Context.MODE_PRIVATE)
-                    showBiometricPromptForTap(targetCard)
+                    if (prefs.getBoolean("biometrics_transfer_confirm", false)) {
-                } else {
+                        showBiometricPromptForTap(targetCard)
-                    setTapMode(true, targetCard)
+                    } else {
+                        setTapMode(true, targetCard)
+                    }
                 }
             }
         }

app/src/main/java/sh/sar/basedbank/util/NfcPaymentUtil.kt

@@ -0,0 +1,53 @@
+package sh.sar.basedbank.util
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.nfc.NfcAdapter
+import android.nfc.cardemulation.CardEmulation
+import android.provider.Settings
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import sh.sar.basedbank.R
+import sh.sar.basedbank.nfc.BmlHostCardEmulatorService
+
+object NfcPaymentUtil {
+    fun checkAndProceed(context: Context, onReady: () -> Unit) {
+        val nfcAdapter = NfcAdapter.getDefaultAdapter(context) ?: run {
+            MaterialAlertDialogBuilder(context)
+                .setTitle(R.string.nfc_unsupported_title)
+                .setMessage(R.string.nfc_unsupported_message)
+                .setPositiveButton(android.R.string.ok, null)
+                .show()
+            return
+        }
+
+        if (!nfcAdapter.isEnabled) {
+            MaterialAlertDialogBuilder(context)
+                .setTitle(R.string.nfc_disabled_title)
+                .setMessage(R.string.nfc_disabled_message)
+                .setPositiveButton(R.string.nfc_open_settings) { _, _ ->
+                    context.startActivity(Intent(Settings.ACTION_NFC_SETTINGS))
+                }
+                .setNegativeButton(R.string.cancel, null)
+                .show()
+            return
+        }
+
+        val cardEmulation = CardEmulation.getInstance(nfcAdapter)
+        val componentName = ComponentName(context, BmlHostCardEmulatorService::class.java)
+        if (!cardEmulation.isDefaultServiceForCategory(componentName, CardEmulation.CATEGORY_PAYMENT)) {
+            MaterialAlertDialogBuilder(context)
+                .setTitle(R.string.nfc_not_default_title)
+                .setMessage(context.getString(R.string.nfc_not_default_message,
+                    context.applicationInfo.loadLabel(context.packageManager)))
+                .setPositiveButton(R.string.nfc_payment_open_settings) { _, _ ->
+                    context.startActivity(Intent(Settings.ACTION_NFC_PAYMENT_SETTINGS))
+                }
+                .setNegativeButton(R.string.cancel, null)
+                .show()
+            return
+        }
+
+        onReady()
+    }
+}

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

@@ -334,6 +334,14 @@
     <string name="card_pay_qr">Scan to Pay</string>
     <string name="card_pay_nfc">Tap to Pay</string>
     <string name="mib_qr_nfc_not_supported">Skill issue on MIB side, Not supported</string>
+    <string name="nfc_unsupported_title">Not Supported</string>
+    <string name="nfc_unsupported_message">Tap to Pay is not supported on this device.</string>
+    <string name="nfc_disabled_title">NFC is Off</string>
+    <string name="nfc_disabled_message">Turn on NFC to use Tap to Pay.</string>
+    <string name="nfc_open_settings">NFC Settings</string>
+    <string name="nfc_not_default_title">Set Default Payment App</string>
+    <string name="nfc_not_default_message">Set %1$s as the default contactless payment app to use Tap to Pay.</string>
+    <string name="nfc_payment_open_settings">Payment Settings</string>
     <string name="card_manage">Manage Card</string>
     <string name="card_set_as_default">Set as Default Card</string>
     <string name="card_hide_from_dashboard">Hide from Dashboard</string>