Create SecurePrefsModule.kt

SecurePrefsModule.kt

@@ -0,0 +1,65 @@
+    
+/**
+ * Requires dependency:
+ *     //security for secured preferences
+ *     implementation "androidx.security:security-crypto:1.0.0-rc02"
+ */
+
+const val STRING_CONSTANT = "STRING_CONSTANT"
+const val INT_CONSTANT = "INT_CONSTANT"
+const val BOOLEAN_CONSTANT = "BOOLEAN_CONSTANT"
+class SecPrefs (
+    context: android.content.Context
+){
+
+    private val masterKeyAlias = androidx.security.crypto.MasterKeys.getOrCreate(androidx.security.crypto.MasterKeys.AES256_GCM_SPEC)
+    private val prefs = androidx.security.crypto.EncryptedSharedPreferences.create(
+        "encrypted_shared_prefs",
+        masterKeyAlias,
+        context,
+        androidx.security.crypto.EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+        androidx.security.crypto.EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+    )
+
+    @Synchronized
+    fun saveStringInPrefs(
+        input: String
+    ) {
+        prefs.edit()
+            .putString(STRING_CONSTANT, input)
+            .apply()
+    }
+
+    @Synchronized
+    fun loadStringFromPrefs(): String? {
+        return prefs.getString(STRING_CONSTANT, null)
+    }
+
+    @Synchronized
+    fun saveIntInPrefs(
+        input: Int
+    ) {
+        prefs.edit()
+            .putInt(INT_CONSTANT, input)
+            .apply()
+    }
+
+    @Synchronized
+    fun loadIntFromPrefs(): Int? {
+        return prefs.getInt(INT_CONSTANT, 0)
+    }
+
+    @Synchronized
+    fun saveBooleanInPrefs(
+        input: Boolean
+    ) {
+        prefs.edit()
+            .putBoolean(BOOLEAN_CONSTANT, input)
+            .apply()
+    }
+
+    @Synchronized
+    fun loadBooleanFromPrefs(): Boolean? {
+        return prefs.getBoolean(BOOLEAN_CONSTANT, false)
+    }
+}