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89
app/src/main/java/com/ztftrue/music/utils/CustomColorUtils.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| package com.ztftrue.music.utils | ||
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| import android.graphics.Color | ||
| import androidx.annotation.ColorInt | ||
| import androidx.annotation.FloatRange | ||
|
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| object CustomColorUtils { | ||
| fun isColorDark(color: Int): Boolean { | ||
| // 计算相对亮度 | ||
| // Color.luminance = (0.299 * R + 0.587 * G + 0.114 * B) / 255 | ||
| val darkness: Double = | ||
| 1 - (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255 | ||
| // 根据阈值判断是深色还是浅色 | ||
| return darkness >= 0.5 | ||
| } | ||
|
|
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| fun getContrastingColor(color1: Int, color2: Int): Int { | ||
| val averageColor = averageColor(color1, color2) | ||
| return averageColor | ||
| } | ||
|
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| fun averageColor(color1: Int, color2: Int): Int { | ||
| val red = ((Color.red(color1) + Color.red(color2)) / 2).toInt() | ||
| val green = (Color.green(color1) + Color.green(color2)) / 2.3 | ||
| val blue = (Color.blue(color1) + Color.blue(color2)) / 2 | ||
| return Color.rgb(red, green.toInt(), blue.toInt()) | ||
| } | ||
|
|
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| fun getContrastingColor(color: Int): Int { | ||
| val luminance = | ||
| (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255 | ||
|
|
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| return if (luminance > 0.5) { | ||
| blendARGB(color, Color.BLACK, 0.7f) | ||
| } else { | ||
| blendARGB(color, Color.WHITE, 0.7f) | ||
| } | ||
| } | ||
|
|
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| @ColorInt | ||
| fun blendARGB( | ||
| @ColorInt color1: Int, @ColorInt color2: Int, | ||
| @FloatRange(from = 0.0, to = 1.0) ratio: Float | ||
| ): Int { | ||
| val inverseRatio = 1 - ratio | ||
| val a = Color.alpha(color1) * inverseRatio + Color.alpha(color2) * ratio | ||
| val r = Color.red(color1) * inverseRatio + Color.red(color2) * ratio | ||
| val g = Color.green(color1) * inverseRatio + Color.green(color2) * ratio | ||
| val b = Color.blue(color1) * inverseRatio + Color.blue(color2) * ratio | ||
| return Color.argb(a.toInt(), r.toInt(), g.toInt(), b.toInt()) | ||
| } | ||
|
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| fun alpha(color: Int): Int { | ||
| return color ushr 24 | ||
| } | ||
|
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| /** | ||
| * Return the red component of a color int. This is the same as saying | ||
| * (color >> 16) & 0xFF | ||
| */ | ||
| fun red(color: Int): Int { | ||
| return color shr 16 and 0xFF | ||
| } | ||
|
|
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| /** | ||
| * Return the green component of a color int. This is the same as saying | ||
| * (color >> 8) & 0xFF | ||
| */ | ||
| fun green(color: Int): Int { | ||
| return color shr 8 and 0xFF | ||
| } | ||
|
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||
| /** | ||
| * Return the blue component of a color int. This is the same as saying | ||
| * color & 0xFF | ||
| */ | ||
| fun blue(color: Int): Int { | ||
| return color and 0xFF | ||
| } | ||
|
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| fun Int.toAndroidColor(): Int { | ||
| return Color.argb( | ||
| Color.alpha(this), | ||
| Color.red(this), | ||
| Color.green(this), | ||
| Color.blue(this) | ||
| ) | ||
| } | ||
| } |
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