[shared_preferences] Platform implementations of async api (flutter#6965)

part 2 of flutter#5210

Author: tarrinneal

Diff for: packages/shared_preferences/shared_preferences_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.3.0
+
+* Adds new `SharedPreferencesAsyncAndroid` API.
+
 ## 2.2.4
 
 * Updates lint checks to ignore NewerVersionAvailable.

Diff for: packages/shared_preferences/shared_preferences_android/android/build.gradle

@@ -2,13 +2,15 @@ group 'io.flutter.plugins.sharedpreferences'
 version '1.0-SNAPSHOT'
 
 buildscript {
+    ext.kotlin_version = '1.7.10'
     repositories {
         google()
         mavenCentral()
     }
 
     dependencies {
         classpath 'com.android.tools.build:gradle:7.2.2'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 
@@ -28,6 +30,7 @@ allprojects {
 }
 
 apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
 
 android {
     // Conditional for compatibility with AGP <4.2.
@@ -41,6 +44,14 @@ android {
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
     defaultConfig {
         minSdkVersion 19
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -51,8 +62,14 @@ android {
         disable 'AndroidGradlePluginVersion', 'InvalidPackage', 'GradleDependency', 'NewerVersionAvailable'
     }
     dependencies {
+        implementation 'androidx.datastore:datastore:1.0.0'
+        implementation 'androidx.datastore:datastore-preferences:1.0.0'    
         testImplementation 'junit:junit:4.13.2'
+        testImplementation 'androidx.test:core-ktx:1.5.0'
+        testImplementation 'androidx.test.ext:junit-ktx:1.1.5'
+        testImplementation 'org.robolectric:robolectric:4.12.1'
         testImplementation 'org.mockito:mockito-inline:5.2.0'
+        testImplementation 'io.mockk:mockk:1.13.12'
     }
 
 

Diff for: packages/shared_preferences/shared_preferences_android/android/src/main/java/io/flutter/plugins/sharedpreferences/SharedPreferencesPlugin.java renamed to packages/shared_preferences/shared_preferences_android/android/src/main/java/io/flutter/plugins/sharedpreferences/LegacySharedPreferencesPlugin.java

@@ -27,8 +27,8 @@
 import java.util.Map;
 import java.util.Set;
 
-/** SharedPreferencesPlugin */
-public class SharedPreferencesPlugin implements FlutterPlugin, SharedPreferencesApi {
+/** LegacySharedPreferencesPlugin */
+public class LegacySharedPreferencesPlugin implements FlutterPlugin, SharedPreferencesApi {
   private static final String TAG = "SharedPreferencesPlugin";
   private static final String SHARED_PREFERENCES_NAME = "FlutterSharedPreferences";
   private static final String LIST_IDENTIFIER = "VGhpcyBpcyB0aGUgcHJlZml4IGZvciBhIGxpc3Qu";
@@ -38,19 +38,19 @@ public class SharedPreferencesPlugin implements FlutterPlugin, SharedPreferences
   private SharedPreferences preferences;
   private SharedPreferencesListEncoder listEncoder;
 
-  public SharedPreferencesPlugin() {
+  public LegacySharedPreferencesPlugin() {
     this(new ListEncoder());
   }
 
   @VisibleForTesting
-  SharedPreferencesPlugin(@NonNull SharedPreferencesListEncoder listEncoder) {
+  LegacySharedPreferencesPlugin(@NonNull SharedPreferencesListEncoder listEncoder) {
     this.listEncoder = listEncoder;
   }
 
   private void setUp(@NonNull BinaryMessenger messenger, @NonNull Context context) {
     preferences = context.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
     try {
-      SharedPreferencesApi.setup(messenger, this);
+      SharedPreferencesApi.setUp(messenger, this);
     } catch (Exception ex) {
       Log.e(TAG, "Received exception while setting up SharedPreferencesPlugin", ex);
     }
@@ -63,7 +63,7 @@ public void onAttachedToEngine(@NonNull FlutterPlugin.FlutterPluginBinding bindi
 
   @Override
   public void onDetachedFromEngine(@NonNull FlutterPlugin.FlutterPluginBinding binding) {
-    SharedPreferencesApi.setup(binding.getBinaryMessenger(), null);
+    SharedPreferencesApi.setUp(binding.getBinaryMessenger(), null);
   }
 
   @Override

Diff for: packages/shared_preferences/shared_preferences_android/android/src/main/java/io/flutter/plugins/sharedpreferences/Messages.java

@@ -1,7 +1,7 @@
 // Copyright 2013 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-// Autogenerated from Pigeon (v9.2.5), do not edit directly.
+// Autogenerated from Pigeon (v16.0.4), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 
 package io.flutter.plugins.sharedpreferences;
@@ -88,14 +88,14 @@ public interface SharedPreferencesApi {
      * Sets up an instance of `SharedPreferencesApi` to handle messages through the
      * `binaryMessenger`.
      */
-    static void setup(
+    static void setUp(
         @NonNull BinaryMessenger binaryMessenger, @Nullable SharedPreferencesApi api) {
       {
         BinaryMessenger.TaskQueue taskQueue = binaryMessenger.makeBackgroundTaskQueue();
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.remove",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.remove",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -122,7 +122,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.setBool",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.setBool",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -150,7 +150,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.setString",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.setString",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -178,7 +178,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.setInt",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.setInt",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -207,7 +207,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.setDouble",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.setDouble",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -235,7 +235,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.setStringList",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.setStringList",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -263,7 +263,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.clear",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.clear",
                 getCodec(),
                 taskQueue);
         if (api != null) {
@@ -291,7 +291,7 @@ static void setup(
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(
                 binaryMessenger,
-                "dev.flutter.pigeon.SharedPreferencesApi.getAll",
+                "dev.flutter.pigeon.shared_preferences_android.SharedPreferencesApi.getAll",
                 getCodec(),
                 taskQueue);
         if (api != null) {