Añadir la opcion de registrar el historico de un producto en un supermercado con su precio y manejo de notificaciones de stock bajo

2026-08-10 09:10:46 +02:00
parent 57b545c243
commit 9554190f54
21 changed files with 715 additions and 60 deletions
@@ -0,0 +1,54 @@
+package com.example.despensapp.util
+
+import android.content.Context
+import androidx.biometric.BiometricManager
+import androidx.biometric.BiometricManager.Authenticators.BIOMETRIC_STRONG
+import androidx.biometric.BiometricManager.Authenticators.BIOMETRIC_WEAK
+import androidx.biometric.BiometricPrompt
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.FragmentActivity
+import com.example.despensapp.R
+
+object BiometricHelper {
+
+    fun isBiometricAvailable(context: Context): Boolean {
+        val biometricManager = BiometricManager.from(context)
+        return when (biometricManager.canAuthenticate(BIOMETRIC_STRONG or BIOMETRIC_WEAK)) {
+            BiometricManager.BIOMETRIC_SUCCESS -> true
+            else -> false
+        }
+    }
+
+    fun showBiometricPrompt(
+        activity: FragmentActivity,
+        onResult: (Boolean, String?) -> Unit
+    ) {
+        val executor = ContextCompat.getMainExecutor(activity)
+        val biometricPrompt = BiometricPrompt(activity, executor,
+            object : BiometricPrompt.AuthenticationCallback() {
+                override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {
+                    super.onAuthenticationError(errorCode, errString)
+                    onResult(false, errString.toString())
+                }
+
+                override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
+                    super.onAuthenticationSucceeded(result)
+                    onResult(true, null)
+                }
+
+                override fun onAuthenticationFailed() {
+                    super.onAuthenticationFailed()
+                    onResult(false, activity.getString(R.string.biometric_error_failed))
+                }
+            })
+
+        val promptInfo = BiometricPrompt.PromptInfo.Builder()
+            .setTitle(activity.getString(R.string.biometric_title))
+            .setSubtitle(activity.getString(R.string.biometric_subtitle))
+            .setNegativeButtonText(activity.getString(R.string.biometric_negative_button))
+            .setAllowedAuthenticators(BIOMETRIC_STRONG or BIOMETRIC_WEAK)
+            .build()
+
+        biometricPrompt.authenticate(promptInfo)
+    }
+}