- temporary remove EncryptedSharedPreferences

- add sample

build.gradle

@@ -2,7 +2,7 @@
 
 buildscript {
     ext.kotlin_version = '1.3.61'
-    ext.security_crypto_version = '1.0.0-rc01'
+    ext.gson_version = '2.8.6'
     repositories {
         google()
         jcenter()

safedepositbox/build.gradle

@@ -26,5 +26,5 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation "androidx.security:security-crypto:$security_crypto_version"
+    implementation "com.google.code.gson:gson:$gson_version"
 }

safedepositbox/src/main/java/id/codepresso/safedepositbox/SafeDepositBox.kt

@@ -2,34 +2,19 @@ package id.codepresso.safedepositbox
 
 import android.content.Context
 import android.content.Context.MODE_PRIVATE
-import android.os.Build
 import android.text.TextUtils
-import androidx.security.crypto.EncryptedSharedPreferences
-import androidx.security.crypto.MasterKeys
+import com.google.gson.Gson
+
 
 /**
  * Crafted by Razib Kani Maulidan on 14/04/20.
  **/
 
 class SafeDepositBox(private val context: Context, private val prefName: String) {
 
-    private val keyGenParameterSpec = MasterKeys.AES256_GCM_SPEC
-    private val masterKeyAlias = MasterKeys.getOrCreate(keyGenParameterSpec)
-
-    private val sharedPrefs by lazy {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            EncryptedSharedPreferences
-                .create(
-                    prefName,
-                    masterKeyAlias,
-                    context,
-                    EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
-                    EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
-                )
-        } else {
-            context.getSharedPreferences(prefName, MODE_PRIVATE)
-        }
-    }
+    private val gson by lazy { Gson() }
+
+    private val sharedPrefs by lazy { context.getSharedPreferences(prefName, MODE_PRIVATE) }
     private val sharedPrefsEditor = sharedPrefs.edit()
 
     private val delimiter = "::"
@@ -165,6 +150,28 @@ class SafeDepositBox(private val context: Context, private val prefName: String)
         sharedPrefsEditor.putString(key, TextUtils.join(delimiter, arrayDouble)).apply()
     }
 
+    /**
+     * Store Any value into SharedPreferences
+     * @param key SharedPreferences key
+     * @param value Any value to be stored
+     */
+    fun storeObject(key: String, value: Any) {
+        sharedPrefsEditor.putString(key, gson.toJson(value)).apply()
+    }
+
+    /**
+     * Store List<Any> value into SharedPreferences
+     * @param key SharedPreferences key
+     * @param value List<Any> value to be stored
+     */
+    fun storeListObject(key: String, values: List<Any>) {
+        val objectStrings = mutableListOf<String>()
+        values.forEach { obj ->
+            objectStrings.add(gson.toJson(obj))
+        }
+        storeListString(key, objectStrings)
+    }
+
     /**
      * Get Boolean value from SharedPreferences at 'key'. If key not found, return 'defaultValue'
      * @param key SharedPreferences key
@@ -311,6 +318,33 @@ class SafeDepositBox(private val context: Context, private val prefName: String)
         }
     }
 
+    /**
+     * Get T value from SharedPreferences at 'key'.
+     * @param key SharedPreferences key
+     * @return T value at 'key' or NPE if value not found
+     */
+    fun <T> getObject(key: String, classOfT: Class<T>): T {
+        val objectString = getString(key)
+        return gson.fromJson(objectString, classOfT) ?: throw NullPointerException()
+    }
+
+    /**
+     * Get List<T> value from SharedPreferences at 'key'.
+     * @param key SharedPreferences key
+     * @return List<T> value at 'key'
+     */
+    fun <T> getListObject(key: String, classOfT: Class<T>): List<T> {
+        val objectStrings = getListString(key)
+        val objects = mutableListOf<T>()
+
+        objectStrings.forEach { objectString ->
+            val value = gson.fromJson(objectString, classOfT)
+            objects.add(value)
+        }
+
+        return objects
+    }
+
     /**
      * Remove value from SharedPreferences at 'key'
      * @param key SharedPreferences key

sample/build.gradle

@@ -7,7 +7,7 @@ android {
     buildToolsVersion "29.0.2"
 
     defaultConfig {
-        applicationId "id.codepresso.savedepositbox"
+        applicationId "id.codepresso.savedepositbox.sample"
         minSdkVersion 19
         targetSdkVersion 29
         versionCode 1

sample/src/main/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="id.codepresso.safedepositbox">
+    package="id.codepresso.safedepositbox.sample">
 
     <application
         android:allowBackup="true"
@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name="id.codepresso.safedepositbox.SampleActivity">
+        <activity android:name=".SampleActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

sample/src/main/java/id/codepresso/safedepositbox/sample/SampleActivity.kt

@@ -0,0 +1,47 @@
+package id.codepresso.safedepositbox.sample
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import id.codepresso.safedepositbox.SafeDepositBox
+import kotlinx.android.synthetic.main.activity_main.*
+
+class SampleActivity : AppCompatActivity() {
+
+    private val safeDepositBox by lazy {
+        SafeDepositBox(this, "SafeDepositBoxSample")
+    }
+
+    private val stringLogger by lazy {
+        StringBuilder().append("")
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        val tatang =
+            User("Tatang", "Sutarna")
+        val bejo = User("Bejo", "Surojo")
+
+        safeDepositBox.apply {
+            storeObject("tatang", tatang)
+            storeObject("bejo", bejo)
+        }
+
+        stringLogger.append("Storing Object Value\n\n")
+
+        val tatangFromPref = safeDepositBox.getObject("tatang", User::class.java)
+        val bejoFromPref = safeDepositBox.getObject("bejo", User::class.java)
+
+        stringLogger.append("Getting Object Value\n\n")
+        stringLogger.append(tatangFromPref.toString())
+        stringLogger.append("\n")
+        stringLogger.append(bejoFromPref.toString())
+
+        updateLogView()
+    }
+
+    private fun updateLogView() {
+        tvLogger.text = stringLogger
+    }
+}

sample/src/main/java/id/codepresso/safedepositbox/sample/User.kt

@@ -0,0 +1,7 @@
+package id.codepresso.safedepositbox.sample
+
+/**
+ * Crafted by Razib Kani Maulidan on 25/04/20.
+ **/
+
+data class User(private val firstName: String, private val lastName: String)

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

@@ -1,7 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:padding="16dp"
-    tools:context=".SampleActivity" />
+    tools:context=".SampleActivity">
+
+    <androidx.appcompat.widget.AppCompatTextView
+        android:id="@+id/tvLogger"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="top|center"
+        tools:text="Lorem ipsum" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>