CameraView freezes when using the front camera (Device: Sony Xperia XZ (F8332))

07-28 17:32:15.780: E/camera-hal(2518): camera_device.cpp(3750):validateCaptureSettings: Unsupported ae mode 2.
07-28 17:32:15.780: E/camera-hal(2518): camera_device.cpp(5565):validateCaptureSettings: validateCaptureSettings failed.
07-28 17:32:15.780: E/camera-hal(2518): camera_device.cpp(2869):processRequest: Invalid settings for capture. Device:1 Frame Number:0
07-28 17:32:15.442: I/CameraService(2518): disconnect: Disconnected client for camera 0 for PID 25183
07-28 17:32:15.447: I/CameraService(2518): CameraService::connect call (PID -1 "city.alley.alleycity", camera ID 1) for HAL version default and Camera API version 2
07-28 17:32:15.448: I/Camera2ClientBase(2518): Camera 1: Opened. Client: city.alley.alleycity (PID 25183, UID 10250)
07-28 17:32:15.448: I/CameraDeviceClient(2518): CameraDeviceClient 1: Opened
07-28 17:32:15.450: D/audio_hw_primary(2466): adev_set_parameters: enter: camera_sub=on
07-28 17:32:15.450: D/audio_hw_extn(2466): audio_extn_set_anc_parameters: anc_enabled:0
07-28 17:32:15.451: W/ServiceManager(2518): Permission failure: com.sonyericsson.permission.CAMERA_EXTENDED from uid=10250 pid=25183
07-28 17:32:15.451: W/ServiceManager(2518): Permission failure: com.sonymobile.permission.CAMERA_DUAL_OPEN from uid=10250 pid=25183
07-28 17:32:15.452: W/ServiceManager(2518): Permission failure: com.sonymobile.permission.CAMERA_LOW_POWER from uid=10250 pid=25183
07-28 17:32:15.452: I/camera-hal(2518): camera_module.cpp(120):registerCamera: open was requested by non Sony camera app

I’ve tried to assign front facing by using both setFacing method and app:facing XML attribute, the CameraView freezes all the time and cannot take a picture.

PS. The back camera works well. Camera API v1 + SurfaceView seems to be quite normal with the front camera.

[kraa]

What helps me is app:flash="off" (problem with that in Front facing) Thats all! After that facing is working in xml and in code. Error 1:(4) disappear

[crontab]

CameraView has a problem with pretty much all Sony Xperia compact series phones: closing and re-opening the camera causes the API to return an error (4) and consequently crashing because the internal camera object becomes null. This happens e.g. when you switch the cameras from back to front, change aspect ratio etc. The OP’s problem here may or may not be related though.

My workaround was to force Camera1 API on these phones. It may be that camera hardware on these phones are not fully Camera2 compliant despite that the phone itself officially supports API 21+.