cannerycoders opened a new issue #663:
URL: https://github.com/apache/cordova-plugin-camera/issues/663
# Bug Report
## Problem
When camera.getPicture is invoked, a long-ish delay (5 sec) occurs before
successfully
presenting the camera view. In the xcode console I see these messages:
```
020-09-20 10:42:22.828828-0700 myApp[1069:319363] [reports] Main Thread
Checker: UI API called on a background thread: -[UINavigationController
setDelegate:]
PID: 1069, TID: 319363, Thread name: (none), Queue name:
com.apple.root.default-qos, QoS: 0
Backtrace:
4 myApp 0x0000000100411804 -[CDVCamera
showCameraPicker:withOptions:] + 184
5 myApp 0x0000000100410e74 __25-[CDVCamera
takePicture:]_block_invoke_2 + 324
6 TCC 0x00000001cccb840c
503BE2BA-F75C-3D90-83A6-3A941D77C334 + 13324
7 TCC 0x00000001cccbc95c
503BE2BA-F75C-3D90-83A6-3A941D77C334 + 31068
8 libxpc.dylib 0x00000001d479d8ec
71E5302F-09BE-3116-8D43-EC2D4C27BE10 + 104684
9 libxpc.dylib 0x00000001d4791598
71E5302F-09BE-3116-8D43-EC2D4C27BE10 + 54680
10 libdispatch.dylib 0x000000010080d678
_dispatch_client_callout3 + 20
11 libdispatch.dylib 0x000000010082ab80
_dispatch_mach_msg_async_reply_invoke + 396
12 libdispatch.dylib 0x0000000100821270
_dispatch_kevent_worker_thread + 1416
13 libsystem_pthread.dylib 0x00000001d476c940 _pthread_wqthread
+ 332
14 libsystem_pthread.dylib 0x00000001d477377c start_wqthread + 8
2020-09-20 10:42:23.103711-0700 myApp[1069:319150] [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}
2020-09-20 10:42:23.670110-0700 myApp[1069:319150] [Presentation] Attempt to
present <CDVCameraPicker: 0x10187d800> on <MainViewController: 0x100b0cf80>
(from <MainViewController: 0x100b0cf80>) whose view is not in the window
hierarchy.
2020-09-20 10:42:33.640598-0700 myApp[1069:319150] [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?
Click a button to start the camera, within 1sec the camera appears.
In plugin version 4.1.1, there is no lag, and the message doesn't appear.
### What does actually happen?
Click a button to start the camera, 5 seconds go by, then the camera appears.
## Information
<!-- Include all relevant information that might help understand and
reproduce the problem -->
Here's my invocation:
navigator.camera.getPicture(onSuccess, onFail, getCamOpts());
here are the camera options i'm using:
```
{
quality: 95,
destinationType: Camera.DestinationType.FILE_URI,
sourceType: fromlib ? Camera.PictureSourceType.PHOTOLIBRARY :
Camera.PictureSourceType.CAMERA,
encodingType: Camera.EncodingType.JPEG,
mediaType: Camera.MediaType.PICTURE,
correctOrientation: true,
};
```
The stack reported above is associated with the sourceType of CAMERA
When sourceType is PHOTOLIBRARY, i also get a long delay and _several_ stack
traces like this:
```
Main Thread Checker: UI API called on a background thread:
-[UIImagePickerController init]
PID: 1104, TID: 326131, Thread name: (none), Queue name:
com.apple.root.default-qos, QoS: 0
Backtrace:
4 myApp 0x0000000100db7040 +[CDVCameraPicker
createFromPictureOptions:] + 112
5 myApp 0x0000000100db17c0 -[CDVCamera
showCameraPicker:withOptions:] + 116
6 myApp 0x0000000100db0cf4 __25-[CDVCamera
takePicture:]_block_invoke + 1024
```
### Command or Code
<!-- What command or code is needed to reproduce the problem? -->
navigator.camera.getPicture(onSuccess, onFail, getCamOpts()); // (above)
### Environment, Platform, Device
<!-- In what environment, on what platform or on which device are you
experiencing the issue? -->
IOS14 from macos catalina, xcode 12.0.0
### Version information
<!--
What are relevant versions you are using?
For example:
Cordova: Cordova CLI, Cordova Platforms, Cordova Plugins
Other Frameworks: Ionic Framework and CLI version
Operating System, Android Studio, Xcode etc.
-->
IOS14 iPhone XR
cordova 10.0.0
cordova-plugin-camera: 5.0.0
cordova-ios: 6.1.1
xcode: 12.0.0
## Checklist
<!-- Please check the boxes by putting an x in the [ ] like so: [x] -->
- [ x] I searched for existing GitHub issues
- [ x] I updated all Cordova tooling to most recent version
- [ x] I included all the necessary information above
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