From fc18d3252c0db661b30ea542af3a1f7c769effaf Mon Sep 17 00:00:00 2001
From: andrewhaisting <ahaisting@gmail.com>
Date: Fri, 26 Mar 2021 10:28:47 -0600
Subject: [PATCH] add lockAndroidOrientation option

---
 README.md                                      |  1 +
 .../camera/preview/CameraPreview.java          | 18 +++++++++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 6b9becb7..121908f6 100644
--- a/README.md
+++ b/README.md
@@ -110,6 +110,7 @@ Starts the camera preview instance.
 | storeToFile | boolean       | (optional) Capture images to a file and return back the file path instead of returning base64 encoded data, default false. |
 | disableExifHeaderStripping | boolean       | (optional) Disable automatic rotation of the image, and let the browser deal with it, default true (applicable to the android and ios platforms only) |
 | disableAudio | boolean | (optional) Disables audio stream to prevent permission requests, default false. (applicable to web only) |
+| lockAndroidOrientation | boolean | (optional) Locks device orientation when camer is showing, default false. (applicable to Android only) |
 
 <!-- <strong>Options:</strong>
 All options stated are optional and will default to values here
diff --git a/android/src/main/java/com/ahm/capacitor/camera/preview/CameraPreview.java b/android/src/main/java/com/ahm/capacitor/camera/preview/CameraPreview.java
index 5c2bbfa4..6db8d0c1 100644
--- a/android/src/main/java/com/ahm/capacitor/camera/preview/CameraPreview.java
+++ b/android/src/main/java/com/ahm/capacitor/camera/preview/CameraPreview.java
@@ -3,6 +3,7 @@
 import android.Manifest;
 import android.app.FragmentManager;
 import android.app.FragmentTransaction;
+import android.content.pm.ActivityInfo;
 import android.graphics.Color;
 import android.graphics.Point;
 import android.hardware.Camera;
@@ -19,11 +20,9 @@
 import com.getcapacitor.PluginMethod;
 
 import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
 
-import java.util.List;
 import java.io.File;
+import java.util.List;
 
 @NativePlugin(
         permissions = {
@@ -40,6 +39,9 @@ public class CameraPreview extends Plugin implements CameraActivity.CameraPrevie
     private static String VIDEO_FILE_EXTENSION = ".mp4";
     static final int REQUEST_CAMERA_PERMISSION = 1234;
 
+    // keep track of previously specified orientation to support locking orientation:
+    private int previousOrientationRequest = -1;
+
     private CameraActivity fragment;
     private int containerViewId = 20;
 
@@ -100,6 +102,9 @@ public void stop(final PluginCall call) {
             public void run() {
                 FrameLayout containerView = getBridge().getActivity().findViewById(containerViewId);
 
+                // allow orientation changes after closing camera:
+                getBridge().getActivity().setRequestedOrientation(previousOrientationRequest);
+
                 if (containerView != null) {
                     ((ViewGroup)getBridge().getWebView().getParent()).removeView(containerView);
                     getBridge().getWebView().setBackgroundColor(Color.WHITE);
@@ -213,6 +218,8 @@ private void startCamera(final PluginCall call) {
         final Boolean toBack = call.getBoolean("toBack", false);
         final Boolean storeToFile = call.getBoolean("storeToFile", false);
         final Boolean disableExifHeaderStripping = call.getBoolean("disableExifHeaderStripping", true);
+        final Boolean lockOrientation = call.getBoolean("lockAndroidOrientation", false);
+        previousOrientationRequest = getBridge().getActivity().getRequestedOrientation();
 
         fragment = new CameraActivity();
         fragment.setEventListener(this);
@@ -228,6 +235,11 @@ private void startCamera(final PluginCall call) {
             @Override
             public void run() {
                 DisplayMetrics metrics = getBridge().getActivity().getResources().getDisplayMetrics();
+                // lock orientation if specified in options:
+                if (lockOrientation) {
+                    getBridge().getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
+                }
+
                 // offset
                 int computedX = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, x, metrics);
                 int computedY = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, y, metrics);