Crop camera preview for TextureView

Question

I have a TextureView with a fixed width and height and I want to show a camera preview inside of it. I need to crop the camera preview so that it doesn\'t look stretched ins

Answer 1

I have just made a working app where I needed to show a preview with x2 of the actual input without getting a pixelated look. Ie. I needed to show the center part of a 1280x720 live preview in a 640x360 TextureView.

Here is what I did.

Set the camera preview to x2 resolution of what I needed:

params.setPreviewSize(1280, 720);

And then scale the texture view accordingly:

this.captureView.setScaleX(2f);
this.captureView.setScaleY(2f);

This runs without any hiccups on small devices.