fix preview size selection

[YeungKC]

matchRatio may get unexpected size when implementation of getSupportedPreviewSizes() decides to return values in a non-descending order.

[codecov]

Codecov Report

Merging #133 into master will decrease coverage by 0.2%.
The diff coverage is 0%.

Impacted Files	Coverage Δ	Complexity Δ
...com/otaliastudios/cameraview/CameraController.java	25.8% <0%> (-0.2%)	23 <0> (ø)
...otaliastudios/cameraview/TextureCameraPreview.java	43.4% <0%> (-26.1%)	4% <0%> (-1%)

[natario1]

I see your point. Thanks for fixing this!

[YeungKC]

Are you think need how about provide control the actual preview size?
Sometimes need the feature.

My English isn't very good, please don't mind.

[natario1]

I'll be away from keyboard for two months. If you really need this, you can open a PR. Take a look at the commit history, there are commits called Bump version.

You should replicate the same for a new version. Bump the version in Gradle, in the README file, and write a proper change log in CHANGELOG file. If you do this we can release to 1.4.2.

[YeungKC]

I this paragraph of time work is very busy, but I will try.

[ychescale9]

I'm also interested in being able to configure the preview size for frame processing. @YeungKC will you be working on this? if not I'd be happy to take a look.