03b9246afe
* Adds KTLint as a GitHub action * Adds KTLint to the gradle project for IDE integration * Adds .editorconfig to configure KTLint (android/)
29 lines
927 B
Kotlin
29 lines
927 B
Kotlin
package com.mrousavy.camera.utils
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import androidx.camera.core.AspectRatio
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import kotlin.math.abs
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import kotlin.math.max
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import kotlin.math.min
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private const val RATIO_4_3_VALUE = 4.0 / 3.0
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private const val RATIO_16_9_VALUE = 16.0 / 9.0
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/**
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* [androidx.camera.core.ImageAnalysisConfig] requires enum value of
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* [androidx.camera.core.AspectRatio]. Currently it has values of 4:3 & 16:9.
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*
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* Detecting the most suitable ratio for dimensions provided in @params by counting absolute
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* of preview ratio to one of the provided values.
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*
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* @param width - preview width
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* @param height - preview height
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* @return suitable aspect ratio
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*/
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fun aspectRatio(width: Int, height: Int): Int {
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val previewRatio = max(width, height).toDouble() / min(width, height)
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if (abs(previewRatio - RATIO_4_3_VALUE) <= abs(previewRatio - RATIO_16_9_VALUE)) {
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return AspectRatio.RATIO_4_3
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}
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return AspectRatio.RATIO_16_9
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}
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