Cameraview: Handling rotation

[HD-AD]

As the title says, the view is taking to long to be displayed. When the activity is created/rotated it takes time to load resulting in a white screen (background) to be displayed till cameraView is loaded.

[natario1]

It's much better if you don't recreate your camera activity for rotations. This is basic Android stuff, just Google it 🙂

The loading time is needed to connect to the hardware, allocate buffers etc.

[HD-AD]

@natario1 But when I disable screen orientation by adding this to my Activity in the Manifest android:configChanges="keyboardHidden|orientation|screenSize" the camera orientation is wrong when I rotate the device.

[natario1]

With this flag the preview won't change, like every camera app does. Rotating the device will have no effect and that's generally good

[HD-AD]

@natario1 but the preview does change even if I use that flag. The only way I get to lock the orientation is to call android:screenOrientation="portrait" but how will I the rotate the buttons if the screen is locked to portrait

[natario1]

Using button.setRotation() and the orientation callback in the CameraListener

[HD-AD]

@natario1 android:configChanges="keyboardHidden|orientation|screenSize" still doesn't work for me, the screen still rotates, the Activity is not recreated but CameraView still rotates (in the wrong orientation) and if I set android:screenOrientation="portrait" then rotation is not picked up in CameraListner callback

[natario1]

You must use both lines!

[HD-AD]

Haaa! I got it working, thank you for taking the time to help me and creating a AWSOME library!