I do the similar to the example but it pulls out error:

I/Choreographer( 3440): Skipped 68 frames!  The application may be doing too much work on its main thread.
W/art     ( 3440): Before Android 4.1, method android.graphics.PorterDuffColorFilter androidx.vectordrawable.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
I/art     ( 3440): Rejecting re-init on previously-failed class java.lang.Class<androidx.core.view.ViewCompat$2>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
I/art     ( 3440):   at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2559)
I/art     ( 3440):   at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
I/art     ( 3440):   at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
I/art     ( 3440):   at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:645)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:787)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:727)
I/art     ( 3440):   at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:858)
I/art     ( 3440):   at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:821)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:518)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:426)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377)
I/art     ( 3440):   at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607)
I/art     ( 3440):   at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518)
I/art     ( 3440):   at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466)
I/art     ( 3440):   at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
I/art     ( 3440):   at void com.sample.edgedetection.base.BaseActivity.onCreate(android.os.Bundle) (BaseActivity.kt:13)
I/art     ( 3440):   at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6662)
I/art     ( 3440):   at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118)
I/art     ( 3440):   at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2599)
I/art     ( 3440):   at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2707)
I/art     ( 3440):   at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
I/art     ( 3440):   at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1460)
I/art     ( 3440):   at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
I/art     ( 3440):   at void android.os.Looper.loop() (Looper.java:154)
I/art     ( 3440):   at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6077)
I/art     ( 3440):   at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
I/art     ( 3440):   at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:866)
I/art     ( 3440):   at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:756)
I/art     ( 3440): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/com.tekree.scann-1/base.apk"],nativeLibraryDirectories=[/data/app/com.tekree.scann-1/lib/x86, /data/app/com.tekree.scann-1/base.apk!/lib/x86, /system/lib, /vendor/lib]]
I/art     ( 3440):   at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56)
I/art     ( 3440):   at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380)
I/art     ( 3440):   at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312)
I/art     ( 3440):   at void androidx.core.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2559)
I/art     ( 3440):   at void androidx.appcompat.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
I/art     ( 3440):   at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
I/art     ( 3440):   at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:645)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:787)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:727)
I/art     ( 3440):   at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:858)
I/art     ( 3440):   at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:821)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:518)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:426)
I/art     ( 3440):   at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:377)
I/art     ( 3440):   at android.view.ViewGroup androidx.appcompat.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:607)
I/art     ( 3440):   at void androidx.appcompat.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:518)
I/art     ( 3440):   at void androidx.appcompat.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:466)
I/art     ( 3440):   at void androidx.appcompat.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
I/art     ( 3440):   at void com.sample.edgedetection.base.BaseActivity.onCreate(android.os.Bundle) (BaseActivity.kt:13)
I/art     ( 3440):   at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6662)
I/art     ( 3440):   at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1118)
I/art     ( 3440):   at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2599)
I/art     ( 3440):   at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2707)
I/art     ( 3440):   at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
I/art     ( 3440):   at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1460)
I/art     ( 3440):   at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
I/art     ( 3440):   at void android.os.Looper.loop() (Looper.java:154)
I/art     ( 3440):   at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6077)
I/art     ( 3440):   at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
I/art     ( 3440):   at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:866)
I/art     ( 3440):   at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:756)
I/art     ( 3440): 
D/OpenCV/StaticHelper( 3440): Trying to get library list
E/OpenCV/StaticHelper( 3440): OpenCV error: Cannot load info library for OpenCV
D/OpenCV/StaticHelper( 3440): Library list: ""
D/OpenCV/StaticHelper( 3440): First attempt to load libs
D/OpenCV/StaticHelper( 3440): Trying to init OpenCV libs
D/OpenCV/StaticHelper( 3440): Trying to load library opencv_java3
D/OpenCV/StaticHelper( 3440): Cannot load library "opencv_java3"
W/System.err( 3440): java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.tekree.scann-1/base.apk"],nativeLibraryDirectories=[/data/app/com.tekree.scann-1/lib/x86, /data/app/com.tekree.scann-1/base.apk!/lib/x86, /system/lib, /vendor/lib]]] couldn't find "libopencv_java3.so"
W/System.err( 3440): 	at java.lang.Runtime.loadLibrary0(Runtime.java:972)
W/System.err( 3440): 	at java.lang.System.loadLibrary(System.java:1530)
W/System.err( 3440): 	at org.opencv.android.StaticHelper.loadLibrary(StaticHelper.java:64)
W/System.err( 3440): 	at org.opencv.android.StaticHelper.initOpenCVLibs(StaticHelper.java:95)
W/System.err( 3440): 	at org.opencv.android.StaticHelper.initOpenCV(StaticHelper.java:39)
W/System.err( 3440): 	at org.opencv.android.OpenCVLoader.initDebug(OpenCVLoader.java:102)
W/System.err( 3440): 	at com.sample.edgedetection.scan.ScanActivity.prepare(ScanActivity.kt:36)
W/System.err( 3440): 	at com.sample.edgedetection.base.BaseActivity.onCreate(BaseActivity.kt:16)
W/System.err( 3440): 	at android.app.Activity.performCreate(Activity.java:6662)
W/System.err( 3440): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
W/System.err( 3440): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
W/System.err( 3440): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
W/System.err( 3440): 	at android.app.ActivityThread.-wrap12(ActivityThread.java)
W/System.err( 3440): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
W/System.err( 3440): 	at android.os.Handler.dispatchMessage(Handler.java:102)
W/System.err( 3440): 	at android.os.Looper.loop(Looper.java:154)
W/System.err( 3440): 	at android.app.ActivityThread.main(ActivityThread.java:6077)
W/System.err( 3440): 	at java.lang.reflect.Method.invoke(Native Method)
W/System.err( 3440): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
W/System.err( 3440): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
D/OpenCV/StaticHelper( 3440): First attempt to load libs fails
I/ScanActivity( 3440): loading opencv error, exit

Added contrast with black and white colors, dark theme, image reset for the initial stage, rotate image with 90º angles, save black and white and rotated image, improved image recognition so that no triangle appears all the time.

Hello we are getting MissingPluginException when we execute below given code

try { imagePath = await EdgeDetection.detectEdge; } on PlatformException catch (e) { print(e.toString()); } on Exception catch (e) { print(e.toString()); }

we added entry of edge_detection library into pubspec.yml file as given below

edge_detection: ^1.0.4 one thing we noticed that when we add this file_picker: ^1.3.8 file_picker library with edge_detection then its throwing above exception. we unable to rectify this issue why its stoped working. so please help me out

Thanks

Since moving to Flutter channel stable 2.8.1 and edge detection 1.07(from pre-null safety) there has been an issue with the review screen page (see photo).

The bottom of the "Review" screen gets cut-off, revealing the bottom navigation bar of the app. This is especially problematic given the bottom nav bar can be interacted with in this state. This occurs when testing on a real device, portrait only, iOS 15.1.1

Thank you, I would appreciate any help to resolve this issue!

Hi, when I run the example code on an emulator using Android 11, as soon as the save button is pressed, the app crashes, giving this error log:

E/CropActivity( 8333): Saved touched! D/AndroidRuntime( 8333): Shutting down VM E/AndroidRuntime( 8333): FATAL EXCEPTION: main E/AndroidRuntime( 8333): Process: com.example.edge_detection_test, PID: 8333 E/AndroidRuntime( 8333): java.lang.RuntimeException: java.lang.reflect.InvocationTargetException E/AndroidRuntime( 8333): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602) E/AndroidRuntime( 8333): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) E/AndroidRuntime( 8333): Caused by: java.lang.reflect.InvocationTargetException E/AndroidRuntime( 8333): at java.lang.reflect.Method.invoke(Native Method) E/AndroidRuntime( 8333): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) E/AndroidRuntime( 8333): ... 1 more E/AndroidRuntime( 8333): Caused by: java.io.FileNotFoundException: /storage/emulated/0/smart_scanner/crop_958.jpeg: open failed: ENOENT (No such file or directory) E/AndroidRuntime( 8333): at libcore.io.IoBridge.open(IoBridge.java:492) E/AndroidRuntime( 8333): at java.io.FileOutputStream.(FileOutputStream.java:236) E/AndroidRuntime( 8333): at java.io.FileOutputStream.(FileOutputStream.java:186) E/AndroidRuntime( 8333): at com.sample.edgedetection.crop.CropPresenter.save(CropPresenter.kt:217) E/AndroidRuntime( 8333): at com.sample.edgedetection.crop.CropActivity.onOptionsItemSelected(CropActivity.kt:78) E/AndroidRuntime( 8333): at android.app.Activity.onMenuItemSelected(Activity.java:4269) E/AndroidRuntime( 8333): at androidx.fragment.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:384) E/AndroidRuntime( 8333): at androidx.appcompat.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:196) E/AndroidRuntime( 8333): at androidx.appcompat.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:109) E/AndroidRuntime( 8333): at androidx.appcompat.app.AppCompatDelegateImpl.onMenuItemSelected(AppCompatDelegateImpl.java:888) E/AndroidRuntime( 8333): at androidx.appcompat.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:840) E/AndroidRuntime( 8333): at androidx.appcompat.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:158) E/AndroidRuntime( 8333): at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:991) E/AndroidRuntime( 8333): at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:981) E/AndroidRuntime( 8333): at androidx.appcompat.widget.ActionMenuView.invokeItem(ActionMenuView.java:625) E/AndroidRuntime( 8333): at androidx.appcompat.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:151) E/AndroidRuntime( 8333): at android.view.View.performClick(View.java:7448) E/AndroidRuntime( 8333): at android.view.View.performClickInternal(View.java:7425) E/AndroidRuntime( 8333): at android.view.View.access$3600(View.java:810) E/AndroidRuntime( 8333): at android.view.View$PerformClick.run(View.java:28305) E/AndroidRuntime( 8333): at android.os.Handler.handleCallback(Handler.java:938) E/AndroidRuntime( 8333): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime( 8333): at android.os.Looper.loop(Looper.java:223) E/AndroidRuntime( 8333): at android.app.ActivityThread.main(ActivityThread.java:7656) E/AndroidRuntime( 8333): ... 3 more E/AndroidRuntime( 8333): Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory) E/AndroidRuntime( 8333): at libcore.io.Linux.open(Native Method) E/AndroidRuntime( 8333): at libcore.io.ForwardingOs.open(ForwardingOs.java:166) E/AndroidRuntime( 8333): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:254) E/AndroidRuntime( 8333): at libcore.io.ForwardingOs.open(ForwardingOs.java:166) E/AndroidRuntime( 8333): at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7542) E/AndroidRuntime( 8333): at libcore.io.IoBridge.open(IoBridge.java:478) E/AndroidRuntime( 8333): ... 26 more I/Process ( 8333): Sending signal. PID: 8333 SIG: 9

I've tried including:

in the AndroidManifest file, but that doesn't work either.

Does anyone know where the issue lies and how I can fix this? Any help would be much appreciated.

• Resolution issue on different phones
• Crash on Multiple click on camera
• Auto Focus Disabled for better response.(User will not initiate scan unless document is in focus), avoids unnecessary delay.
• Shutter Sound
• Give any feed back if u want to remove any other changes

Hello, I am trying to implement gallery scan option and I made it for iOS version but I am having hard time for Android. Can anyone help me about this? @BugsBunnyBR @y-okady @RodrigoPorras @sawankumarbundelkhandi Thanks.

I Run the example of this repo and i found file not found exception.

Caused by: java.io.FileNotFoundException: /storage/emulated/0/smart_scanner/crop_1125.jpeg: open failed: EACCES (Permission denied)

As described in #33, saving a picture on Android results in

E/AndroidRuntime(21257): FATAL EXCEPTION: main E/AndroidRuntime(21257): Process: com.ome.dietgene.dev, PID: 21257 E/AndroidRuntime(21257): java.lang.RuntimeException: java.lang.reflect.InvocationTargetException E/AndroidRuntime(21257): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:526) E/AndroidRuntime(21257): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950) E/AndroidRuntime(21257): Caused by: java.lang.reflect.InvocationTargetException E/AndroidRuntime(21257): at java.lang.reflect.Method.invoke(Native Method) E/AndroidRuntime(21257): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516) E/AndroidRuntime(21257): ... 1 more E/AndroidRuntime(21257): Caused by: java.io.FileNotFoundException: /storage/emulated/0/smart_scanner/crop_16732.jpeg: open failed: EACCES (Permission denied) E/AndroidRuntime(21257): at libcore.io.IoBridge.open(IoBridge.java:496) E/AndroidRuntime(21257): at java.io.FileOutputStream.(FileOutputStream.java:235) E/AndroidRuntime(21257): at java.io.FileOutputStream.(FileOutputStream.java:186) E/AndroidRuntime(21257): at com.sample.edgedetection.crop.CropPresenter.save(CropPresenter.kt:129) E/AndroidRuntime(21257): at com.sample.edgedetection.crop.CropActivity.onOptionsItemSelected(CropActivity.kt:55) E/AndroidRuntime(21257): at android.app.Activity.onMenuItemSelected(Activity.java:4155) E/AndroidRuntime(21257): at androidx.fragment.app.FragmentActivity.onMenuItemSelected(FragmentActivity.java:384) E/AndroidRuntime(21257): at androidx.appcompat.app.AppCompatActivity.onMenuItemSelected(AppCompatActivity.java:219) E/AndroidRuntime(21257): at androidx.appcompat.view.WindowCallbackWrapper.onMenuItemSelected(WindowCallbackWrapper.java:109) E/AndroidRuntime(21257): at androidx.appcompat.app.AppCompatDelegateImpl.onMenuItemSelected(AppCompatDelegateImpl.java:1030) E/AndroidRuntime(21257): at androidx.appcompat.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:840) E/AndroidRuntime(21257): at androidx.appcompat.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:158) E/AndroidRuntime(21257): at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:991) E/AndroidRuntime(21257): at androidx.appcompat.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:981) E/AndroidRuntime(21257): at androidx.appcompat.widget.ActionMenuView.invokeItem(ActionMenuView.java:625) E/AndroidRuntime(21257): at androidx.appcompat.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:151) E/AndroidRuntime(21257): at android.view.View.performClick(View.java:7201) E/AndroidRuntime(21257): at android.view.View.performClickInternal(View.java:7170) E/AndroidRuntime(21257): at android.view.View.access$3500(View.java:806) E/AndroidRuntime(21257): at android.view.View$PerformClick.run(View.java:27582) E/AndroidRuntime(21257): at android.os.Handler.handleCallback(Handler.java:883) E/AndroidRuntime(21257): at android.os.Handler.dispatchMessage(Handler.java:100) E/AndroidRuntime(21257): at android.os.Looper.loop(Looper.java:214) E/AndroidRuntime(21257): at android.app.ActivityThread.main(ActivityThread.java:7710) E/AndroidRuntime(21257): ... 3 more E/AndroidRuntime(21257): Caused by: android.system.ErrnoException: open failed: EACCES (Permission denied) E/AndroidRuntime(21257): at libcore.io.Linux.open(Native Method) E/AndroidRuntime(21257): at libcore.io.ForwardingOs.open(ForwardingOs.java:167) E/AndroidRuntime(21257): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:252) E/AndroidRuntime(21257): at libcore.io.ForwardingOs.open(ForwardingOs.java:167) E/AndroidRuntime(21257): at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:7609) E/AndroidRuntime(21257): at libcore.io.IoBridge.open(IoBridge.java:482) E/AndroidRuntime(21257): ... 26 more

because of https://developer.android.com/training/data-storage#scoped-storage.

Google Play will require app updates to have targetSdk 29+ from 2 November 2020 https://developer.android.com/distribute/best-practices/develop/target-sdk#pre10 , so the plugin will become essentially unusable if the bug is not fixed

Fatal Exception: java.lang.RuntimeException takePicture failed

android.hardware.Camera.native_takePicture (Camera.java) android.hardware.Camera.takePicture (Camera.java:1564) android.hardware.Camera.takePicture (Camera.java:1506) com.sample.edgedetection.scan.ScanPresenter$shut$1.onAutoFocus (ScanPresenter.kt:67) android.hardware.Camera$EventHandler.handleMessage (Camera.java:1238) android.os.Handler.dispatchMessage (Handler.java:107) android.os.Looper.loop (Looper.java:237) android.app.ActivityThread.main (ActivityThread.java:7860) java.lang.reflect.Method.invoke (Method.java) com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:493) com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1075)

Hello, I have the following problem: When I integrate the plugin I get the error message:

_Attributes application@theme value=(@style/AppTheme) from [:edge_detection] AndroidManifest.xml:13:9-40
	is also present at [:flutter_barcode_scanner]_

The solution offered:

Suggestion: add 'tools:replace="android:theme"' to <application> element at AndroidManifest.xml:16:5-45:19 to override

doesn't work.

How can I fix the problem?

sometimes in Android the scanner gets only 3 points instead of 4 and is not possible to crop a document, user need to start scanning again. also it detects very small objects. is it possible to have a bigger minimun square area?

When you run the git example file, an error appears when you select a picture in the gallery. Android has not been tested.

The code in Pub.dev works.

The following FileSystemException was thrown resolving an image codec:
Cannot open file, path = '/var/mobile/Containers/Data/Application/10A55998-891A-47DB-B98D-CCA0BAEC312E/Library/Application Support/1668071559.jpeg' (OS Error: No such file or directory, errno = 2)

When the exception was thrown, this was the stack
#0      _File.open.<anonymous closure> (dart:io/file_impl.dart:356:9)
<asynchronous suspension>
#1      FileImage._loadAsync
package:flutter/…/painting/image_provider.dart:994
<asynchronous suspension>
Path: /var/mobile/Containers/Data/Application/10A55998-891A-47DB-B98D-CCA0BAEC312E/Library/Application Support/1668071559.jpeg

Is there a way, we could just bound the camera to detect rectangles within the given range of width and height? As of now, it's detecting small rectangles within the same rectangle, which is useless.

ava.lang.RuntimeException: Canvas: trying to draw too large(136666408bytes) bitmap. at android.graphics.RecordingCanvas.throwIfCannotDraw(RecordingCanvas.java:280) at android.graphics.BaseRecordingCanvas.drawBitmap(BaseRecordingCanvas.java:88) at android.graphics.drawable.BitmapDrawable.draw(BitmapDrawable.java:548) at android.widget.ImageView.onDraw(ImageView.java:1434) at android.view.View.draw(View.java:21440) at android.view.View.updateDisplayListIfDirty(View.java:20317) at android.view.View.draw(View.java:21172) at android.view.ViewGroup.drawChild(ViewGroup.java:4388) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4149) at android.view.View.updateDisplayListIfDirty(View.java:20308) at android.view.View.draw(View.java:21172) at android.view.ViewGroup.drawChild(ViewGroup.java:4388) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4149) at android.view.View.updateDisplayListIfDirty(View.java:20308) at android.view.View.draw(View.java:21172) at android.view.ViewGroup.drawChild(ViewGroup.java:4388) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4149) at android.view.View.updateDisplayListIfDirty(View.java:20308) at android.view.View.draw(View.java:21172) at android.view.ViewGroup.drawChild(ViewGroup.java:4388) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4149) at android.view.View.updateDisplayListIfDirty(View.java:20308) at android.view.View.draw(View.java:21172) at android.view.ViewGroup.drawChild(ViewGroup.java:4388) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4149) at android.view.View.updateDisplayListIfDirty(View.java:20308) at android.view.View.draw(View.java:21172) at android.view.ViewGroup.drawChild(ViewGroup.java:4388) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4149) at android.view.View.draw(View.java:21443) at com.android.internal.policy.DecorView.draw(DecorView.java:806) at android.view.View.updateDisplayListIfDirty(View.java:20317) at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:575) at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:581) at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:654) at android.view.ViewRootImpl.draw(ViewRootImpl.java:3608) at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:3416) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2753) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1719) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7602) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1029) at android.view.Choreographer.doCallbacks(Choreographer.java:852) at android.view.Choreographer.doFrame(Choreographer.java:787) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1014) at android.os.Handler.handleCallback(Handler.java:883) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:214) at android.app.ActivityThread.main(ActivityThread.java:7403) at java.lang.reflect.Method.invoke(Method.java:-2) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)

Hi All,

i have this lines of code

EdgeDetection.useInternalStorage(true); String? imagePath = await EdgeDetection.detectEdge;

that give me to the log "File does not exist"

someone can help?