CameraX preview issues in camera-view alpha09 & alpha10

[mgarciaguerrero]

Description

I'm facing some issues of your CameraX sample app when running on my testing device. The problem is that the preview is not fully displayed (screenshot below).

After some investigation, I can confirm it happens in both camera-view versions alpha09 and alpha10 (alpha08 works fine). If I set the preferredImplementationMode to use TextureView (as recommended in the documentation), then the issue disappears.

val camera = cameraProvider.bindToLifecycle(lifecycleOwner, cameraSelector, preview)
previewView.preferredImplementationMode = ImplementationMode.TEXTURE_VIEW
preview.setSurfaceProvider(previewView.createSurfaceProvider(camera.cameraInfo))

However, taking into account this comment, seems that it is not recommended:

• CameraX beta2 #198 (comment)

Screenshot

Device information

• Device name: Samsung Galaxy Note5
• Model: SM-N920C
• Android version: 7

[TheMelody]

previewView.preferredImplementationMode = ImplementationMode.TEXTURE_VIEW

Great, solved the official bug。

[mgarciaguerrero]

@owahltinez any advice on this? Is previewView.preferredImplementationMode = ImplementationMode.TEXTURE_VIEW the official solution to solve this issue?

[owahltinez]

Forcing TextureView implementation is only a temporary workaround, which I would discourage for production apps. The long-term plan is for the CameraX library to choose the appropriate implementation for all devices. I reported the issue in the library's tracker, and I'm closing it here since it's not an issue with the sample (but feel free to continue the conversation).

[mgarciaguerrero]

Thanks @owahltinez for the clarification 👍

[clhols]

@owahltinez Can you provide a link to the issue you created on the library's tracker, so we can monitor when this is fixed?