Revert "[camera] Add ProcessCameraProvider class to CameraX plugin (#6469)" (#6506)

This reverts commit 1c47c3b.

Author: stuartmorgan-g

packages/camera/camera_android_camerax/CHANGELOG.md

@@ -3,4 +3,3 @@
 * Creates camera_android_camerax plugin for development.
 * Adds CameraInfo class and removes unnecessary code from plugin.
 * Adds CameraSelector class.
-* Adds ProcessCameraProvider class.

packages/camera/camera_android_camerax/android/build.gradle

@@ -38,15 +38,13 @@ android {
 
 dependencies {
     // CameraX core library using the camera2 implementation must use same version number.
-    def camerax_version = "1.2.0-beta02"
+    def camerax_version = "1.2.0-beta01"
     implementation "androidx.camera:camera-core:${camerax_version}"
     implementation "androidx.camera:camera-camera2:${camerax_version}"
     implementation "androidx.camera:camera-lifecycle:${camerax_version}"
-    implementation 'com.google.guava:guava:28.1-android'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-inline:4.7.0'
     testImplementation 'androidx.test:core:1.4.0'
-    testImplementation 'org.robolectric:robolectric:4.3'
 }
     testOptions {
         unitTests.includeAndroidResources = true

packages/camera/camera_android_camerax/android/src/main/java/io/flutter/plugins/camerax/CameraAndroidCameraxPlugin.java

@@ -15,7 +15,6 @@
 public final class CameraAndroidCameraxPlugin implements FlutterPlugin, ActivityAware {
   private InstanceManager instanceManager;
   private FlutterPluginBinding pluginBinding;
-  private ProcessCameraProviderHostApiImpl processCameraProviderHostApi;
 
   /**
    * Initialize this within the {@code #configureFlutterEngine} of a Flutter activity or fragment.
@@ -40,10 +39,6 @@ void setUp(BinaryMessenger binaryMessenger, Context context) {
         binaryMessenger, new JavaObjectHostApiImpl(instanceManager));
     GeneratedCameraXLibrary.CameraSelectorHostApi.setup(
         binaryMessenger, new CameraSelectorHostApiImpl(binaryMessenger, instanceManager));
-    processCameraProviderHostApi =
-        new ProcessCameraProviderHostApiImpl(binaryMessenger, instanceManager, context);
-    GeneratedCameraXLibrary.ProcessCameraProviderHostApi.setup(
-        binaryMessenger, processCameraProviderHostApi);
   }
 
   @Override
@@ -65,33 +60,15 @@ public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
   // Activity Lifecycle methods:
 
   @Override
-  public void onAttachedToActivity(@NonNull ActivityPluginBinding activityPluginBinding) {
-    updateContext(activityPluginBinding.getActivity());
-  }
+  public void onAttachedToActivity(@NonNull ActivityPluginBinding activityPluginBinding) {}
 
   @Override
-  public void onDetachedFromActivityForConfigChanges() {
-    updateContext(pluginBinding.getApplicationContext());
-  }
+  public void onDetachedFromActivityForConfigChanges() {}
 
   @Override
   public void onReattachedToActivityForConfigChanges(
-      @NonNull ActivityPluginBinding activityPluginBinding) {
-    updateContext(activityPluginBinding.getActivity());
-  }
+      @NonNull ActivityPluginBinding activityPluginBinding) {}
 
   @Override
-  public void onDetachedFromActivity() {
-    updateContext(pluginBinding.getApplicationContext());
-  }
-
-  /**
-   * Updates context that is used to fetch the corresponding instance of a {@code
-   * ProcessCameraProvider}.
-   */
-  private void updateContext(Context context) {
-    if (processCameraProviderHostApi != null) {
-      processCameraProviderHostApi.setContext(context);
-    }
-  }
+  public void onDetachedFromActivity() {}
 }

packages/camera/camera_android_camerax/android/src/main/java/io/flutter/plugins/camerax/CameraInfoFlutterApiImpl.java

@@ -18,6 +18,7 @@ public CameraInfoFlutterApiImpl(
   }
 
   void create(CameraInfo cameraInfo, Reply<Void> reply) {
-    create(instanceManager.addHostCreatedInstance(cameraInfo), reply);
+    instanceManager.addHostCreatedInstance(cameraInfo);
+    create(instanceManager.getIdentifierForStrongReference(cameraInfo), reply);
   }
 }

packages/camera/camera_android_camerax/android/src/main/java/io/flutter/plugins/camerax/GeneratedCameraXLibrary.java

@@ -22,13 +22,6 @@
 /** Generated class from Pigeon. */
 @SuppressWarnings({"unused", "unchecked", "CodeBlock2Expr", "RedundantSuppression"})
 public class GeneratedCameraXLibrary {
-
-  public interface Result<T> {
-    void success(T result);
-
-    void error(Throwable error);
-  }
-
   private static class JavaObjectHostApiCodec extends StandardMessageCodec {
     public static final JavaObjectHostApiCodec INSTANCE = new JavaObjectHostApiCodec();
 
@@ -318,133 +311,6 @@ public void create(
     }
   }
 
-  private static class ProcessCameraProviderHostApiCodec extends StandardMessageCodec {
-    public static final ProcessCameraProviderHostApiCodec INSTANCE =
-        new ProcessCameraProviderHostApiCodec();
-
-    private ProcessCameraProviderHostApiCodec() {}
-  }
-
-  /** Generated interface from Pigeon that represents a handler of messages from Flutter. */
-  public interface ProcessCameraProviderHostApi {
-    void getInstance(Result<Long> result);
-
-    @NonNull
-    List<Long> getAvailableCameraInfos(@NonNull Long identifier);
-
-    /** The codec used by ProcessCameraProviderHostApi. */
-    static MessageCodec<Object> getCodec() {
-      return ProcessCameraProviderHostApiCodec.INSTANCE;
-    }
-
-    /**
-     * Sets up an instance of `ProcessCameraProviderHostApi` to handle messages through the
-     * `binaryMessenger`.
-     */
-    static void setup(BinaryMessenger binaryMessenger, ProcessCameraProviderHostApi api) {
-      {
-        BasicMessageChannel<Object> channel =
-            new BasicMessageChannel<>(
-                binaryMessenger,
-                "dev.flutter.pigeon.ProcessCameraProviderHostApi.getInstance",
-                getCodec());
-        if (api != null) {
-          channel.setMessageHandler(
-              (message, reply) -> {
-                Map<String, Object> wrapped = new HashMap<>();
-                try {
-                  Result<Long> resultCallback =
-                      new Result<Long>() {
-                        public void success(Long result) {
-                          wrapped.put("result", result);
-                          reply.reply(wrapped);
-                        }
-
-                        public void error(Throwable error) {
-                          wrapped.put("error", wrapError(error));
-                          reply.reply(wrapped);
-                        }
-                      };
-
-                  api.getInstance(resultCallback);
-                } catch (Error | RuntimeException exception) {
-                  wrapped.put("error", wrapError(exception));
-                  reply.reply(wrapped);
-                }
-              });
-        } else {
-          channel.setMessageHandler(null);
-        }
-      }
-      {
-        BasicMessageChannel<Object> channel =
-            new BasicMessageChannel<>(
-                binaryMessenger,
-                "dev.flutter.pigeon.ProcessCameraProviderHostApi.getAvailableCameraInfos",
-                getCodec());
-        if (api != null) {
-          channel.setMessageHandler(
-              (message, reply) -> {
-                Map<String, Object> wrapped = new HashMap<>();
-                try {
-                  ArrayList<Object> args = (ArrayList<Object>) message;
-                  Number identifierArg = (Number) args.get(0);
-                  if (identifierArg == null) {
-                    throw new NullPointerException("identifierArg unexpectedly null.");
-                  }
-                  List<Long> output =
-                      api.getAvailableCameraInfos(
-                          (identifierArg == null) ? null : identifierArg.longValue());
-                  wrapped.put("result", output);
-                } catch (Error | RuntimeException exception) {
-                  wrapped.put("error", wrapError(exception));
-                }
-                reply.reply(wrapped);
-              });
-        } else {
-          channel.setMessageHandler(null);
-        }
-      }
-    }
-  }
-
-  private static class ProcessCameraProviderFlutterApiCodec extends StandardMessageCodec {
-    public static final ProcessCameraProviderFlutterApiCodec INSTANCE =
-        new ProcessCameraProviderFlutterApiCodec();
-
-    private ProcessCameraProviderFlutterApiCodec() {}
-  }
-
-  /** Generated class from Pigeon that represents Flutter messages that can be called from Java. */
-  public static class ProcessCameraProviderFlutterApi {
-    private final BinaryMessenger binaryMessenger;
-
-    public ProcessCameraProviderFlutterApi(BinaryMessenger argBinaryMessenger) {
-      this.binaryMessenger = argBinaryMessenger;
-    }
-
-    public interface Reply<T> {
-      void reply(T reply);
-    }
-
-    static MessageCodec<Object> getCodec() {
-      return ProcessCameraProviderFlutterApiCodec.INSTANCE;
-    }
-
-    public void create(@NonNull Long identifierArg, Reply<Void> callback) {
-      BasicMessageChannel<Object> channel =
-          new BasicMessageChannel<>(
-              binaryMessenger,
-              "dev.flutter.pigeon.ProcessCameraProviderFlutterApi.create",
-              getCodec());
-      channel.send(
-          new ArrayList<Object>(Arrays.asList(identifierArg)),
-          channelReply -> {
-            callback.reply(null);
-          });
-    }
-  }
-
   private static Map<String, Object> wrapError(Throwable exception) {
     Map<String, Object> errorMap = new HashMap<>();
     errorMap.put("message", exception.toString());