add lock timer poup to dismiss lock

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

@@ -2,12 +2,15 @@ package sh.sar.basedbank.ui.home
 
 import android.content.Intent
 import android.os.Bundle
+import android.os.CountDownTimer
 import android.os.Handler
 import android.os.Looper
 import android.view.Menu
 import android.view.MenuItem
 import android.view.View
 import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import androidx.activity.viewModels
 import androidx.appcompat.app.ActionBarDrawerToggle
 import androidx.appcompat.app.AppCompatActivity
@@ -45,7 +48,14 @@ class HomeActivity : AppCompatActivity() {
     private val viewModel: HomeViewModel by viewModels()
 
     private val autolockHandler = Handler(Looper.getMainLooper())
+    private var warningDialog: AlertDialog? = null
+    private var countdownTimer: CountDownTimer? = null
+
+    private val warningRunnable = Runnable { showAutolockWarning() }
+
     private val autolockRunnable = Runnable {
+        countdownTimer?.cancel(); countdownTimer = null
+        warningDialog?.dismiss(); warningDialog = null
         val securitySet = getSharedPreferences("prefs", MODE_PRIVATE)
             .getString("security_method", null) != null
         if (securitySet) {
@@ -153,6 +163,9 @@ class HomeActivity : AppCompatActivity() {
     override fun onPause() {
         super.onPause()
         autolockHandler.removeCallbacks(autolockRunnable)
+        autolockHandler.removeCallbacks(warningRunnable)
+        countdownTimer?.cancel(); countdownTimer = null
+        warningDialog?.dismiss(); warningDialog = null
     }
 
     override fun onUserInteraction() {
@@ -160,11 +173,46 @@ class HomeActivity : AppCompatActivity() {
         resetAutolockTimer()
     }
 
-    private fun resetAutolockTimer() {
+    fun resetAutolockTimer() {
         autolockHandler.removeCallbacks(autolockRunnable)
+        autolockHandler.removeCallbacks(warningRunnable)
+        countdownTimer?.cancel(); countdownTimer = null
+        warningDialog?.dismiss(); warningDialog = null
         val timeout = getSharedPreferences("prefs", MODE_PRIVATE)
             .getLong("autolock_timeout", 60_000L)
-        if (timeout > 0) autolockHandler.postDelayed(autolockRunnable, timeout)
+        if (timeout <= 0) return
+        if (timeout > 10_000L) autolockHandler.postDelayed(warningRunnable, timeout - 10_000L)
+        autolockHandler.postDelayed(autolockRunnable, timeout)
+    }
+
+    private fun showAutolockWarning() {
+        if (warningDialog?.isShowing == true) return
+        val dialog = MaterialAlertDialogBuilder(this)
+            .setTitle(R.string.autolock_warning_title)
+            .setMessage(getString(R.string.autolock_warning_message, 10))
+            .setPositiveButton(R.string.autolock_stay) { _, _ ->
+                countdownTimer?.cancel(); countdownTimer = null
+                resetAutolockTimer()
+            }
+            .setNegativeButton(R.string.autolock_lock_now) { _, _ ->
+                countdownTimer?.cancel(); countdownTimer = null
+                autolockHandler.removeCallbacks(autolockRunnable)
+                autolockHandler.removeCallbacks(warningRunnable)
+                autolockRunnable.run()
+            }
+            .setCancelable(false)
+            .create()
+        warningDialog = dialog
+        dialog.show()
+        countdownTimer = object : CountDownTimer(10_000L, 1_000L) {
+            override fun onTick(millisUntilFinished: Long) {
+                val secs = ((millisUntilFinished + 999L) / 1000L).toInt()
+                dialog.setMessage(getString(R.string.autolock_warning_message, secs))
+            }
+            override fun onFinish() {
+                dialog.setMessage(getString(R.string.autolock_warning_message, 0))
+            }
+        }.start()
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {

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

@@ -79,6 +79,7 @@ class SettingsFragment : Fragment() {
                 else                 -> 60_000L
             }
             prefs.edit().putLong("autolock_timeout", timeout).apply()
+            (activity as? HomeActivity)?.resetAutolockTimer()
         }
 
         // Change lock
@@ -93,7 +94,6 @@ class SettingsFragment : Fragment() {
             .canAuthenticate(BiometricManager.Authenticators.BIOMETRIC_WEAK) == BiometricManager.BIOMETRIC_SUCCESS
         if (canUseBiometrics) {
             binding.rowBiometrics.visibility = View.VISIBLE
-            binding.switchBiometrics.isChecked = prefs.getBoolean("biometrics_enabled", false)
             binding.switchBiometrics.setOnCheckedChangeListener { _, isChecked ->
                 prefs.edit().putBoolean("biometrics_enabled", isChecked).apply()
             }
@@ -103,6 +103,11 @@ class SettingsFragment : Fragment() {
     override fun onResume() {
         super.onResume()
         requireActivity().title = getString(R.string.nav_settings)
+        // Re-read biometrics pref in case it was changed by SecuritySetupFragment
+        val prefs = requireContext().getSharedPreferences("prefs", Context.MODE_PRIVATE)
+        if (binding.rowBiometrics.visibility == View.VISIBLE) {
+            binding.switchBiometrics.isChecked = prefs.getBoolean("biometrics_enabled", false)
+        }
     }
 
     override fun onDestroyView() {

app/src/main/java/sh/sar/basedbank/ui/onboarding/SecuritySetupFragment.kt

@@ -186,6 +186,11 @@ class SecuritySetupFragment : Fragment() {
     }
 
     private fun goToBiometricOrFinish() {
+        // In change mode, biometrics is managed from Settings — skip this step
+        if (arguments?.getBoolean(ARG_CHANGE_MODE, false) == true) {
+            finishSetup()
+            return
+        }
         val canAuth = BiometricManager.from(requireContext())
             .canAuthenticate(BiometricManager.Authenticators.BIOMETRIC_WEAK)
         if (canAuth == BiometricManager.BIOMETRIC_SUCCESS) {

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

@@ -84,6 +84,10 @@
 
     <!-- Toolbar -->
     <string name="action_lock">Lock app</string>
+    <string name="autolock_warning_title">Locking soon</string>
+    <string name="autolock_warning_message">Locking in %d seconds</string>
+    <string name="autolock_stay">Stay unlocked</string>
+    <string name="autolock_lock_now">Lock now</string>
 
     <!-- Settings -->
     <string name="settings_security">Security</string>