I'm following this original CameraX Example for Android here: https://developer.android.com/codelabs/camerax-getting-started#5 and here: https://github.com/android/camera-samples/blob/main/CameraXBasic/app/src/main/java/com/android/example/cameraxbasic/fragments/CameraFragment.kt#L337
I want to instantiate my Preview like in the example:
val preview = Preview.Builder()
.build()
.also {
it.setSurfaceProvider(viewFinder.surfaceProvider)
}
But then i realize ... Well , what a pleasant surprise - viewFinder / androidx.camera.view.PreviewView is from a library which is only an alpha version
implementation 'androidx.camera:camera-view:1.0.0-alpha24'
(see here) https://github.com/android/camera-samples/blob/main/CameraXBasic/app/build.gradle
I of course don't want to use an alpha version! So i thought okay maybe i Can implement my own SurfaceProvider
documentation suggests i could do something like that:
* class MyGlSurfaceProvider implements Preview.SurfaceProvider {
* // This executor must have also been used with Preview.setSurfaceProvider() to
* // ensure onSurfaceRequested() is called on our GL thread.
* Executor mGlExecutor;
*
* {@literal @}Override
* public void onSurfaceRequested(@NonNull SurfaceRequest request) {
* // If our GL thread/context is shutting down. Signal we will not fulfill
* // the request.
* if (isShuttingDown()) {
* request.willNotProvideSurface();
* return;
* }
*
* // Create the surface and attempt to provide it to the camera.
* Surface surface = resetGlInputSurface(request.getResolution());
*
* // Provide the surface and wait for the result to clean up the surface.
* request.provideSurface(surface, mGlExecutor, (result) -> {
* // In all cases (even errors), we can clean up the state. As an
* // optimization, we could also optionally check for REQUEST_CANCELLED
* // since we may be able to reuse the surface on subsequent surface requests.
* closeGlInputSurface(surface);
* });
* }
* }
yeah but this example seems somewhat incomplete. And i don't know how to implement that properly... So any suggestions how i can implement my own SurfaceProvider?
