JeetuChoudhary opened a new issue #704:
URL: https://github.com/apache/cordova-plugin-camera/issues/704
We have an ionic 3 application that uses a camera and gallery to select
images. I am showing an action sheet and the user can select either gallery or
camera to select an image.
## Error
Selecting the camera disappears the status bar and make the application
lagging. It throws the following stacktrace;
```
Main Thread Checker: UI API called on a background thread:
-[UIImagePickerController init]
PID: 3140, TID: 1450459, Thread name: (none), Queue name:
com.apple.root.default-qos, QoS: 0
Backtrace:
4 ManyTutors 0x00000001027a87a4 +[CDVCameraPicker
createFromPictureOptions:] + 112
5 ManyTutors 0x00000001027a2d1c __25-[CDVCamera
takePicture:]_block_invoke + 1148
6 libdispatch.dylib 0x00000001030c3bcc
_dispatch_call_block_and_release + 32
7 libdispatch.dylib 0x00000001030c56c0
_dispatch_client_callout + 20
8 libdispatch.dylib 0x00000001030c80ec
_dispatch_queue_override_invoke + 952
9 libdispatch.dylib 0x00000001030d8ae0
_dispatch_root_queue_drain + 364
10 libdispatch.dylib 0x00000001030d9488
_dispatch_worker_thread2 + 140
11 libsystem_pthread.dylib 0x00000001f6dbb7c8 _pthread_wqthread
+ 216
12 libsystem_pthread.dylib 0x00000001f6dc275c start_wqthread + 8
2021-01-11 17:13:01.703428+0800 ManyTutors[3140:1450459] [reports] Main
Thread Checker: UI API called on a background thread: -[UIImagePickerController
init]
PID: 3140, TID: 1450459, Thread name: (none), Queue name:
com.apple.root.default-qos, QoS: 0
Backtrace:
4 ManyTutors 0x00000001027a87a4 +[CDVCameraPicker
createFromPictureOptions:] + 112
5 ManyTutors 0x00000001027a2d1c __25-[CDVCamera
takePicture:]_block_invoke + 1148
6 libdispatch.dylib 0x00000001030c3bcc
_dispatch_call_block_and_release + 32
7 libdispatch.dylib 0x00000001030c56c0
_dispatch_client_callout + 20
8 libdispatch.dylib 0x00000001030c80ec
_dispatch_queue_override_invoke + 952
9 libdispatch.dylib 0x00000001030d8ae0
_dispatch_root_queue_drain + 364
10 libdispatch.dylib 0x00000001030d9488
_dispatch_worker_thread2 + 140
11 libsystem_pthread.dylib 0x00000001f6dbb7c8 _pthread_wqthread
+ 216
12 libsystem_pthread.dylib 0x00000001f6dc275c start_wqthread + 8
[Camera] Failed to read exposureBiasesByMode dictionary: Error
Domain=NSCocoaErrorDomain Code=4864 "* -[NSKeyedUnarchiver
_initForReadingFromData:error:throwLegacyExceptions:]: data is NULL"
UserInfo={NSDebugDescription=* -[NSKeyedUnarchiver
_initForReadingFromData:error:throwLegacyExceptions:]: data is NULL}
```
### What is expected to happen?
When I select a camera for the first time, it should ask permission right
away, and after giving the permission it should take a photo and use that photo
in the app.
## What does actually happen?
When I click on the camera for the first time, It takes more than 2 minutes
to show the permission dialog and after clicking the picture when we come back
to the app, the app header disappears and the app starts lagging and doesn't
work properly.
### Environment, Platform, Device
I only face this issue in IOS apps. Android works fine. For IOS, I have
tested it on an emulator, on a real device in debugging mode, and also by
uploading it to test flight.
### Version information
```
cli packages: (C:\nvm\v10.15.1\node_modules)
@ionic/cli-utils : 1.19.2
ionic (Ionic CLI) : 3.20.0
global packages:
cordova (Cordova CLI) : not installed
local packages:
@ionic/app-scripts : 3.2.4
Cordova Platforms : android 7.0.0 ios 5.0.1
Ionic Framework : ionic-angular 3.9.10
System:
Android SDK Tools : 26.1.1
Node : v10.15.1
npm : 6.4.1
OS : Windows 10
Versions:
Xcode Version : 12
IOS Version : 14
```
Any Suggestion will be appreciated.
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