Refactored Camera such that getFlutterTexture() no longer needs to ex…

…ist in Camera.

packages/camera/android/src/main/java/dev/flutter/plugins/camera/Camera.java

@@ -34,7 +34,6 @@
 import java.util.Arrays;
 import java.util.List;
 
-import io.flutter.view.TextureRegistry;
 import io.flutter.view.TextureRegistry.SurfaceTextureEntry;
 
 import static android.view.OrientationEventListener.ORIENTATION_UNKNOWN;
@@ -74,7 +73,7 @@ public enum ResolutionPreset {
 
   public Camera(
       final Activity activity,
-      final TextureRegistry textureRegistry,
+      final SurfaceTextureEntry flutterTexture,
       final String cameraName,
       final String resolutionPreset,
       final boolean enableAudio)
@@ -85,7 +84,7 @@ public Camera(
 
     this.cameraName = cameraName;
     this.enableAudio = enableAudio;
-    this.flutterTexture = textureRegistry.createSurfaceTexture();
+    this.flutterTexture = flutterTexture;
     this.cameraManager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
     orientationEventListener =
         new OrientationEventListener(activity.getApplicationContext()) {
@@ -240,10 +239,6 @@ private void writeToFile(ByteBuffer buffer, File file) throws IOException {
     }
   }
 
-  SurfaceTextureEntry getFlutterTexture() {
-    return flutterTexture;
-  }
-
   public void takePicture(String filePath, @NonNull final OnPictureTakenCallback callback) {
     final File file = new File(filePath);
 

packages/camera/android/src/main/java/dev/flutter/plugins/camera/CameraPlugin.java

@@ -21,6 +21,7 @@
 import io.flutter.plugin.common.MethodChannel;
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
 import io.flutter.plugin.common.MethodChannel.Result;
+import io.flutter.view.TextureRegistry;
 
 public class CameraPlugin implements FlutterPlugin, ActivityAware, MethodCallHandler {
 
@@ -89,9 +90,13 @@ private void instantiateCamera(MethodCall call, Result result) throws CameraAcce
     String cameraName = call.argument("cameraName");
     String resolutionPreset = call.argument("resolutionPreset");
     boolean enableAudio = call.argument("enableAudio");
+    TextureRegistry.SurfaceTextureEntry textureEntry = pluginBinding
+        .getFlutterEngine()
+        .getRenderer()
+        .createSurfaceTexture();
     camera = new Camera(
         activityBinding.getActivity(),
-        pluginBinding.getFlutterEngine().getRenderer(),
+        textureEntry,
         cameraName,
         resolutionPreset,
         enableAudio
@@ -115,7 +120,7 @@ public void onCameraOpenFailed(@NonNull String message) {
 
     EventChannel cameraEventChannel = new EventChannel(
         pluginBinding.getFlutterEngine().getDartExecutor(),
-        "flutter.io/cameraPlugin/cameraEvents" + camera.getFlutterTexture().id()
+        "flutter.io/cameraPlugin/cameraEvents" + textureEntry.id()
     );
     cameraEventChannel.setStreamHandler(new EventChannel.StreamHandler() {
       @Override