diff --git a/packages/battery/CHANGELOG.md b/packages/battery/CHANGELOG.md
index 64ccd1c..ac41979 100644
--- a/packages/battery/CHANGELOG.md
+++ b/packages/battery/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.1+7
+
+* Clean up various Android workarounds no longer needed after framework v1.12.
+
 ## 0.3.1+6
 
 * Remove the deprecated `author:` field from pubspec.yaml
diff --git a/packages/battery/android/build.gradle b/packages/battery/android/build.gradle
index ecd2e1c..ff485fb 100644
--- a/packages/battery/android/build.gradle
+++ b/packages/battery/android/build.gradle
@@ -32,29 +32,3 @@
         disable 'InvalidPackage'
     }
 }
-
-// TODO(amirh): Remove this hack once androidx.lifecycle is included on stable. https://github.com/flutter/flutter/issues/42348
-afterEvaluate {
-    def containsEmbeddingDependencies = false
-    for (def configuration : configurations.all) {
-        for (def dependency : configuration.dependencies) {
-            if (dependency.group == 'io.flutter' &&
-                dependency.name.startsWith('flutter_embedding') &&
-                dependency.isTransitive())
-            {
-                containsEmbeddingDependencies = true
-                break
-            }
-        }
-    }
-    if (!containsEmbeddingDependencies) {
-        android {
-            dependencies {
-                def lifecycle_version = "1.1.1"
-                compileOnly "android.arch.lifecycle:runtime:$lifecycle_version"
-                compileOnly "android.arch.lifecycle:common:$lifecycle_version"
-                compileOnly "android.arch.lifecycle:common-java8:$lifecycle_version"
-            }
-        }
-    }
-}
diff --git a/packages/battery/android/src/main/java/io/flutter/plugins/battery/BatteryPlugin.java b/packages/battery/android/src/main/java/io/flutter/plugins/battery/BatteryPlugin.java
index 1bf3c24..c17cfc1 100644
--- a/packages/battery/android/src/main/java/io/flutter/plugins/battery/BatteryPlugin.java
+++ b/packages/battery/android/src/main/java/io/flutter/plugins/battery/BatteryPlugin.java
@@ -39,8 +39,7 @@
 
   @Override
   public void onAttachedToEngine(FlutterPluginBinding binding) {
-    onAttachedToEngine(
-        binding.getApplicationContext(), binding.getFlutterEngine().getDartExecutor());
+    onAttachedToEngine(binding.getApplicationContext(), binding.getBinaryMessenger());
   }
 
   private void onAttachedToEngine(Context applicationContext, BinaryMessenger messenger) {
diff --git a/packages/battery/example/android/app/src/androidTest/java/io/flutter/plugins/battery/MainActivityTest.java b/packages/battery/example/android/app/src/androidTest/java/io/flutter/plugins/battery/FlutterActivityTest.java
similarity index 67%
rename from packages/battery/example/android/app/src/androidTest/java/io/flutter/plugins/battery/MainActivityTest.java
rename to packages/battery/example/android/app/src/androidTest/java/io/flutter/plugins/battery/FlutterActivityTest.java
index 16165ad..1986d0a 100644
--- a/packages/battery/example/android/app/src/androidTest/java/io/flutter/plugins/battery/MainActivityTest.java
+++ b/packages/battery/example/android/app/src/androidTest/java/io/flutter/plugins/battery/FlutterActivityTest.java
@@ -6,10 +6,12 @@
 
 import androidx.test.rule.ActivityTestRule;
 import dev.flutter.plugins.e2e.FlutterRunner;
+import io.flutter.embedding.android.FlutterActivity;
 import org.junit.Rule;
 import org.junit.runner.RunWith;
 
 @RunWith(FlutterRunner.class)
-public class MainActivityTest {
-  @Rule public ActivityTestRule<MainActivity> rule = new ActivityTestRule<>(MainActivity.class);
+public class FlutterActivityTest {
+  @Rule
+  public ActivityTestRule<FlutterActivity> rule = new ActivityTestRule<>(FlutterActivity.class);
 }
diff --git a/packages/battery/example/android/app/src/main/AndroidManifest.xml b/packages/battery/example/android/app/src/main/AndroidManifest.xml
index e76af9c..d44a8ac 100644
--- a/packages/battery/example/android/app/src/main/AndroidManifest.xml
+++ b/packages/battery/example/android/app/src/main/AndroidManifest.xml
@@ -4,7 +4,7 @@
     <uses-permission android:name="android.permission.INTERNET"/>
 
     <application android:name="io.flutter.app.FlutterApplication" android:label="battery_example" android:icon="@mipmap/ic_launcher">
-        <activity android:name=".MainActivity"
+        <activity android:name="io.flutter.embedding.android.FlutterActivity"
                   android:launchMode="singleTop"
                   android:theme="@android:style/Theme.Black.NoTitleBar"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
@@ -22,5 +22,8 @@
             android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">
         </activity>
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
     </application>
 </manifest>
diff --git a/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/EmbedderV1Activity.java b/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/EmbedderV1Activity.java
index f04a2e2..7ccc9c1 100644
--- a/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/EmbedderV1Activity.java
+++ b/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/EmbedderV1Activity.java
@@ -5,13 +5,15 @@
 package io.flutter.plugins.batteryexample;
 
 import android.os.Bundle;
+import dev.flutter.plugins.e2e.E2EPlugin;
 import io.flutter.app.FlutterActivity;
-import io.flutter.plugins.GeneratedPluginRegistrant;
+import io.flutter.plugins.battery.BatteryPlugin;
 
 public class EmbedderV1Activity extends FlutterActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
-    GeneratedPluginRegistrant.registerWith(this);
+    BatteryPlugin.registerWith(registrarFor("io.flutter.plugins.battery.BatteryPlugin"));
+    E2EPlugin.registerWith(registrarFor("dev.flutter.plugins.e2e.E2EPlugin"));
   }
 }
diff --git a/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/MainActivity.java b/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/MainActivity.java
deleted file mode 100644
index 26ae8ec..0000000
--- a/packages/battery/example/android/app/src/main/java/io/flutter/plugins/batteryexample/MainActivity.java
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2019 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package io.flutter.plugins.batteryexample;
-
-import io.flutter.embedding.android.FlutterActivity;
-import io.flutter.embedding.engine.FlutterEngine;
-import io.flutter.plugins.battery.BatteryPlugin;
-
-public class MainActivity extends FlutterActivity {
-  @Override
-  public void configureFlutterEngine(FlutterEngine flutterEngine) {
-    flutterEngine.getPlugins().add(new BatteryPlugin());
-  }
-}
diff --git a/packages/battery/pubspec.yaml b/packages/battery/pubspec.yaml
index 615f6ed..48011fc 100644
--- a/packages/battery/pubspec.yaml
+++ b/packages/battery/pubspec.yaml
@@ -2,7 +2,7 @@
 description: Flutter plugin for accessing information about the battery state
   (full, charging, discharging) on Android and iOS.
 homepage: https://github.com/flutter/plugins/tree/master/packages/battery
-version: 0.3.1+6
+version: 0.3.1+7
 
 flutter:
   plugin: