From f598d0d6b8aff8026fc9cb2c207956fb08f4207a Mon Sep 17 00:00:00 2001
From: orfelorfel23 <jannik.mueller.jannik+git@googlemail.com>
Date: Wed, 10 Jun 2026 20:33:11 +0200
Subject: [PATCH] fix: Bypass ausbc capture to fix permission error and black
 screen

---
 .../expo/modules/usbcamera/UsbCameraView.kt   | 31 +++++++------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/modules/usb-camera/android/src/main/java/expo/modules/usbcamera/UsbCameraView.kt b/modules/usb-camera/android/src/main/java/expo/modules/usbcamera/UsbCameraView.kt
index bba67a22..fedc28db 100644
--- a/modules/usb-camera/android/src/main/java/expo/modules/usbcamera/UsbCameraView.kt
+++ b/modules/usb-camera/android/src/main/java/expo/modules/usbcamera/UsbCameraView.kt
@@ -21,8 +21,7 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
         addView(textureView, LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT))
 
         val cameraRequest = CameraRequest.Builder()
-            .setPreviewWidth(1280)
-            .setPreviewHeight(720)
+            .setFrontCamera(false)
             .create()
 
         val activityContext = appContext.currentActivity ?: context
@@ -79,7 +78,7 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
         cameraClient = CameraClient.newBuilder(activityContext)
             .setCameraStrategy(CameraUvcStrategy(activityContext))
             .setCameraRequest(cameraRequest)
-            .setEnableGLES(true)
+            .setEnableGLES(false)
             .build()
             
         post {
@@ -103,23 +102,17 @@ class UsbCameraView(context: Context, appContext: AppContext) : ExpoView(context
         }
 
         try {
-            client.captureImage(object : ICaptureCallBack {
-                override fun onBegin() {
-                    // Do nothing
+            // Bypass ausbc's captureImage and permission checks by grabbing the texture view bitmap directly!
+            val bitmap = textureView.bitmap
+            if (bitmap != null) {
+                val file = java.io.File(java.net.URI(savePath).path.takeIf { it.isNotEmpty() } ?: savePath.replace("file://", ""))
+                java.io.FileOutputStream(file).use { out ->
+                    bitmap.compress(android.graphics.Bitmap.CompressFormat.JPEG, 95, out)
                 }
-
-                override fun onError(error: String?) {
-                    promise.reject("ERR_CAPTURE_FAILED", error ?: "Unknown error", null)
-                }
-
-                override fun onComplete(path: String?) {
-                    if (path != null) {
-                        promise.resolve(path)
-                    } else {
-                        promise.reject("ERR_CAPTURE_FAILED", "File path was null", null)
-                    }
-                }
-            }, savePath)
+                promise.resolve(savePath)
+            } else {
+                promise.reject("ERR_CAPTURE_FAILED", "TextureView bitmap is null (is preview running?)", null)
+            }
         } catch (e: Exception) {
             promise.reject("ERR_CAPTURE_EXCEPTION", e.message ?: "Capture threw an exception", e)
         }