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Description:

camera android camerax

camera_android_camerax #
The Android implementation of camera built with the CameraX library.
Note: If any of the limitations prevent you from using
using camera_android_camerax or if you run into any problems, please report
report these issues under flutter/flutter with [camerax] in the title.
You may also opt back into the camera_android implementation if you need.
Usage #
As of camera: ^0.11.0, this package is endorsed, which means you can
simply use camera normally. This package will be automatically be included
in your app when you do, so you do not need to add it to your pubspec.yaml.
However, if you import this package to use any of its APIs directly, you
should add it to your pubspec.yaml as usual.
Limitations #
Concurrent preview display, video recording, image capture, and image streaming #
The CameraX plugin only supports the concurrent camera use cases supported by Camerax; see
their documentation for more information. To avoid the usage of unsupported concurrent
use cases, the plugin behaves according to the following:

If the preview is paused (via pausePreview), concurrent video recording and image capture
and/or image streaming (via startVideoCapturing(cameraId, VideoCaptureOptions(streamCallback:...)))
is supported.
If the preview is not paused

and the camera device is at least supported hardware LIMITED, then concurrent
image capture and video recording is supported.
and the camera device is at least supported hardware LEVEL_3, then concurrent
video recording and image streaming is supported, but concurrent video recording, image
streaming, and image capture is not supported.

setDescriptionWhileRecording is unimplemented Issue #148013 #
setDescriptionWhileRecording, used to switch cameras while recording video, is currently unimplemented
due to this not currently being supported by CameraX.
240p resolution configuration for video recording #
240p resolution configuration for video recording is unsupported by CameraX, and thus,
the plugin will fall back to target 480p (ResolutionPreset.medium) if configured with
ResolutionPreset.low.
Setting stream options for video capture #
Calling startVideoCapturing with VideoCaptureOptions configured with
streamOptions is currently unsupported do to
limitations of the platform interface,
and thus that parameter will silently be ignored.
What requires Android permissions #
Writing to external storage to save image files #
In order to save captured images and videos to files on Android 10 and below, CameraX
requires specifying the WRITE_EXTERNAL_STORAGE permission (see the CameraX documentation).
This is already done in the plugin, so no further action is required on your end. To understand
the implications of specificying this permission, see the WRITE_EXTERNAL_STORAGE documentation.
Allowing image streaming in the background #
As of Android 14, to allow for background image streaming, you will need to specify the foreground
TYPE_CAMERA foreground service permission in your app's manifest. Specifically, in
your_app/android/app/src/main/AndroidManifest.xml add the following:
<manifest ...>
<uses-permission android:name="android.permission.FOREGROUND_SERVICE_CAMERA" />
...
</manifest>
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Contributing #
For more information on contributing to this plugin, see CONTRIBUTING.md.