Supporting Android 12 Bluetooth permissions.

.metadata

@@ -1,10 +1,10 @@
-# This file tracks properties of this Flutter project.
-# Used by Flutter tool to assess capabilities and perform upgrades etc.
-#
-# This file should be version controlled and should not be manually edited.
-
-version:
-  revision: f53b32eb2317ba09137969999d130c24a6314997
-  channel: master
-
-project_type: plugin
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: f53b32eb2317ba09137969999d130c24a6314997
+  channel: master
+
+project_type: plugin

android/build.gradle

@@ -1,58 +1,74 @@
-group 'com.pauldemarco.flutter_blue'
-version '1.0'
-
-buildscript {
-    repositories {
-        google()
-        jcenter()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
-        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.15'
-    }
-}
-
-rootProject.allprojects {
-    repositories {
-        google()
-        jcenter()
-    }
-}
-
-apply plugin: 'com.android.library'
-apply plugin: 'com.google.protobuf'
-
-android {
-    compileSdkVersion 30
-
-    defaultConfig {
-        minSdkVersion 19
-    }
-    sourceSets {
-        main {
-            proto {
-                srcDir '../protos'
-            }
-        }
-    }
-}
-
-protobuf {
-    protoc {
-        artifact = 'com.google.protobuf:protoc:3.11.4'
-    }
-    generateProtoTasks {
-        all().each { task ->
-            task.builtins {
-                java {
-                    option "lite"
-                }
-            }
-        }
-    }
-}
-
-dependencies {
-    implementation 'com.google.protobuf:protobuf-javalite:3.11.4'
+group 'com.pauldemarco.flutter_blue'
+version '1.0'
+
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.15'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+apply plugin: 'com.google.protobuf'
+
+android {
+    compileSdkVersion 31
+
+    defaultConfig {
+        minSdkVersion 19
+        targetSdkVersion 31
+        // Use Java 8 language features and APIs
+        // https://developer.android.com/studio/write/java8-support
+        multiDexEnabled true
+    }
+
+    compileOptions {
+        // Use Java 8 language features and APIs
+        // https://developer.android.com/studio/write/java8-support
+        // Flag to enable support for the new language APIs
+        coreLibraryDesugaringEnabled true
+        // Sets Java compatibility to Java 8
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    sourceSets {
+        main {
+            proto {
+                srcDir '../protos'
+            }
+        }
+    }
+}
+
+protobuf {
+    protoc {
+        artifact = 'com.google.protobuf:protoc:3.17.3'
+    }
+    generateProtoTasks {
+        all().each { task ->
+            task.builtins {
+                java {
+                    option "lite"
+                }
+            }
+        }
+    }
+}
+
+dependencies {
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
+    implementation 'com.google.protobuf:protobuf-javalite:3.17.3'
 }

android/src/main/AndroidManifest.xml

@@ -1,6 +1,15 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-  package="com.pauldemarco.flutter_blue">
-    <uses-permission android:name="android.permission.BLUETOOTH" />
-    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
-</manifest>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.pauldemarco.flutter_blue">
+  <!-- New Bluetooth permissions in Android 12
+       https://developer.android.com/about/versions/12/features/bluetooth-permissions
+  -->
+  <!-- Include "neverForLocation" only if you can strongly assert that
+         your app never derives physical location from Bluetooth scan results. -->
+  <uses-permission android:name="android.permission.BLUETOOTH_SCAN" android:usesPermissionFlags="neverForLocation" />
+  <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
+  <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+
+  <!-- Request legacy Bluetooth permissions on older devices. -->
+  <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
+  <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30" />
+  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" android:maxSdkVersion="30" />
+</manifest>