Closes #52 (#53)

+## 0.2.1
+
+* Rewrite messages to stay as Java code and use `1.8` JVM target in order to allow interop with
+  Kotlin. This **fixes** Android build errors.
+
 ## 0.2.0+2
 ## 0.2.0+2
 
 
 * Bumped pigeon to `0.1.14`.
 * Bumped pigeon to `0.1.14`.

@@ -36,6 +36,13 @@ android {
     lintOptions {
     lintOptions {
         disable 'InvalidPackage'
         disable 'InvalidPackage'
     }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
 }
 }
 
 
 dependencies {
 dependencies {

+// Autogenerated from Pigeon (v0.1.14), do not edit directly.
+// See also: https://pub.dev/packages/pigeon
+
+package creativemaybeno.wakelock;
+
+import io.flutter.plugin.common.BasicMessageChannel;
+import io.flutter.plugin.common.BinaryMessenger;
+import io.flutter.plugin.common.StandardMessageCodec;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+/** Generated class from Pigeon. */
+@SuppressWarnings("unused")
+public class Messages {
+
+  /** Generated class from Pigeon that represents data sent in messages. */
+  public static class ToggleMessage {
+    private Boolean enable;
+    public Boolean getEnable() { return enable; }
+    public void setEnable(Boolean setterArg) { this.enable = setterArg; }
+
+    HashMap toMap() {
+      HashMap<String, Object> toMapResult = new HashMap<>();
+      toMapResult.put("enable", enable);
+      return toMapResult;
+    }
+    static ToggleMessage fromMap(HashMap map) {
+      ToggleMessage fromMapResult = new ToggleMessage();
+      Object enable = map.get("enable");
+      fromMapResult.enable = (Boolean)enable;
+      return fromMapResult;
+    }
+  }
+
+  /** Generated class from Pigeon that represents data sent in messages. */
+  public static class IsEnabledMessage {
+    private Boolean enabled;
+    public Boolean getEnabled() { return enabled; }
+    public void setEnabled(Boolean setterArg) { this.enabled = setterArg; }
+
+    HashMap toMap() {
+      HashMap<String, Object> toMapResult = new HashMap<>();
+      toMapResult.put("enabled", enabled);
+      return toMapResult;
+    }
+    static IsEnabledMessage fromMap(HashMap map) {
+      IsEnabledMessage fromMapResult = new IsEnabledMessage();
+      Object enabled = map.get("enabled");
+      fromMapResult.enabled = (Boolean)enabled;
+      return fromMapResult;
+    }
+  }
+
+  /** Generated interface from Pigeon that represents a handler of messages from Flutter.*/
+  public interface WakelockApi {
+    void toggle(ToggleMessage arg);
+    IsEnabledMessage isEnabled();
+
+    /** Sets up an instance of `WakelockApi` to handle messages through the `binaryMessenger` */
+    static void setup(BinaryMessenger binaryMessenger, WakelockApi api) {
+      {
+        BasicMessageChannel<Object> channel =
+            new BasicMessageChannel<>(binaryMessenger, "dev.flutter.pigeon.WakelockApi.toggle", new StandardMessageCodec());
+        if (api != null) {
+          channel.setMessageHandler((message, reply) -> {
+            HashMap<String, HashMap> wrapped = new HashMap<>();
+            try {
+              @SuppressWarnings("ConstantConditions")
+              ToggleMessage input = ToggleMessage.fromMap((HashMap)message);
+              api.toggle(input);
+              wrapped.put("result", null);
+            }
+            catch (Exception exception) {
+              wrapped.put("error", wrapError(exception));
+            }
+            reply.reply(wrapped);
+          });
+        } else {
+          channel.setMessageHandler(null);
+        }
+      }
+      {
+        BasicMessageChannel<Object> channel =
+            new BasicMessageChannel<>(binaryMessenger, "dev.flutter.pigeon.WakelockApi.isEnabled", new StandardMessageCodec());
+        if (api != null) {
+          channel.setMessageHandler((message, reply) -> {
+            HashMap<String, HashMap> wrapped = new HashMap<>();
+            try {
+              IsEnabledMessage output = api.isEnabled();
+              wrapped.put("result", output.toMap());
+            }
+            catch (Exception exception) {
+              wrapped.put("error", wrapError(exception));
+            }
+            reply.reply(wrapped);
+          });
+        } else {
+          channel.setMessageHandler(null);
+        }
+      }
+    }
+  }
+  private static HashMap wrapError(Exception exception) {
+    HashMap<String, Object> errorMap = new HashMap<>();
+    errorMap.put("message", exception.toString());
+    errorMap.put("code", exception.getClass().getSimpleName());
+    errorMap.put("details", null);
+    return errorMap;
+  }
+}

-// Autogenerated from Pigeon (v0.1.14), do not edit directly.
-// See also: https://pub.dev/packages/pigeon
-package creativemaybeno.wakelock
-
-import io.flutter.plugin.common.BasicMessageChannel
-import io.flutter.plugin.common.BinaryMessenger
-import io.flutter.plugin.common.StandardMessageCodec
-import java.util.ArrayList
-import java.util.HashMap
-
-/** Generated class from Pigeon.  */
-object Messages {
-    private fun wrapError(exception: Exception): HashMap {
-        val errorMap: HashMap<String, Object> = HashMap()
-        errorMap.put("message", exception.toString())
-        errorMap.put("code", exception.getClass().getSimpleName())
-        errorMap.put("details", null)
-        return errorMap
-    }
-
-    /** Generated class from Pigeon that represents data sent in messages.  */
-    class ToggleMessage {
-        private var enable: Boolean? = null
-        fun getEnable(): Boolean? {
-            return enable
-        }
-
-        fun setEnable(setterArg: Boolean?) {
-            enable = setterArg
-        }
-
-        fun toMap(): HashMap {
-            val toMapResult: HashMap<String, Object> = HashMap()
-            toMapResult.put("enable", enable)
-            return toMapResult
-        }
-
-        companion object {
-            fun fromMap(map: HashMap): ToggleMessage {
-                val fromMapResult = ToggleMessage()
-                val enable: Object = map.get("enable")
-                fromMapResult.enable = enable
-                return fromMapResult
-            }
-        }
-    }
-
-    /** Generated class from Pigeon that represents data sent in messages.  */
-    class IsEnabledMessage {
-        private var enabled: Boolean? = null
-        fun getEnabled(): Boolean? {
-            return enabled
-        }
-
-        fun setEnabled(setterArg: Boolean?) {
-            enabled = setterArg
-        }
-
-        fun toMap(): HashMap {
-            val toMapResult: HashMap<String, Object> = HashMap()
-            toMapResult.put("enabled", enabled)
-            return toMapResult
-        }
-
-        companion object {
-            fun fromMap(map: HashMap): IsEnabledMessage {
-                val fromMapResult = IsEnabledMessage()
-                val enabled: Object = map.get("enabled")
-                fromMapResult.enabled = enabled
-                return fromMapResult
-            }
-        }
-    }
-
-    /** Generated interface from Pigeon that represents a handler of messages from Flutter. */
-    interface WakelockApi {
-        fun toggle(arg: ToggleMessage?)
-        val isEnabled: IsEnabledMessage
-
-        companion object {
-            /** Sets up an instance of `WakelockApi` to handle messages through the `binaryMessenger`  */
-            fun setup(binaryMessenger: BinaryMessenger?, api: WakelockApi?) {
-                run {
-                    val channel: BasicMessageChannel<Object> = BasicMessageChannel(binaryMessenger, "dev.flutter.pigeon.WakelockApi.toggle", StandardMessageCodec())
-                    if (api != null) {
-                        channel.setMessageHandler { message, reply ->
-                            val wrapped: HashMap<String, HashMap> = HashMap()
-                            try {
-                                @SuppressWarnings("ConstantConditions") val input = ToggleMessage.fromMap(message as HashMap)
-                                api.toggle(input)
-                                wrapped.put("result", null)
-                            } catch (exception: Exception) {
-                                wrapped.put("error", wrapError(exception))
-                            }
-                            reply.reply(wrapped)
-                        }
-                    } else {
-                        channel.setMessageHandler(null)
-                    }
-                }
-                run {
-                    val channel: BasicMessageChannel<Object> = BasicMessageChannel(binaryMessenger, "dev.flutter.pigeon.WakelockApi.isEnabled", StandardMessageCodec())
-                    if (api != null) {
-                        channel.setMessageHandler { message, reply ->
-                            val wrapped: HashMap<String, HashMap> = HashMap()
-                            try {
-                                val output = api.isEnabled
-                                wrapped.put("result", output.toMap())
-                            } catch (exception: Exception) {
-                                wrapped.put("error", wrapError(exception))
-                            }
-                            reply.reply(wrapped)
-                        }
-                    } else {
-                        channel.setMessageHandler(null)
-                    }
-                }
-            }
-        }
-    }
-}

@@ -42,8 +42,7 @@ class WakelockPlugin : FlutterPlugin, WakelockApi, ActivityAware {
     wakelock!!.toggle(arg!!)
     wakelock!!.toggle(arg!!)
   }
   }
 
 
-  override val isEnabled: IsEnabledMessage
-    get() {
-      return wakelock!!.isEnabled()
-    }
+  override fun isEnabled(): IsEnabledMessage {
+    return wakelock!!.isEnabled()
+  }
 }
 }

@@ -2,7 +2,7 @@ name: wakelock
 description: >-2
 description: >-2
   Plugin that allows you to keep the device screen awake, i.e. prevent the screen from sleeping on
   Plugin that allows you to keep the device screen awake, i.e. prevent the screen from sleeping on
   Android, iOS, and web.
   Android, iOS, and web.
-version: 0.2.0+2
+version: 0.2.1
 homepage: https://github.com/creativecreatorormaybenot/wakelock/tree/master/wakelock
 homepage: https://github.com/creativecreatorormaybenot/wakelock/tree/master/wakelock
 
 
 environment:
 environment: