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Code Issues Packages Projects Releases Wiki Activity

优化

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This commit is contained in:
gedoor 2021-10-19 15:59:56 +08:00
parent 7eae45460b
commit abc043f38f
4 changed files with 85 additions and 84 deletions
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2
app/src/main/java/io/legado/app/help/ReadBookConfig.kt
View File

@ -92,7 +92,7 @@ object ReadBookConfig {
val height = dm.heightPixels
bg = durConfig.curBgDrawable(width, height).apply {
if (this is BitmapDrawable) {
bgMeanColor = BitmapUtils.getMeanColor(bitmap)
bgMeanColor = bitmap.getMeanColor()
} else if (this is ColorDrawable) {
bgMeanColor = color
}

2
app/src/main/java/io/legado/app/help/ThemeConfig.kt
View File

@ -63,7 +63,7 @@ object ThemeConfig {
if (bgCfg.second == 0) {
return bgImage
}
return BitmapUtils.stackBlur(bgImage, bgCfg.second.toFloat())
return bgImage.stackBlur(bgCfg.second.toFloat())
}
fun upConfig() {

163
app/src/main/java/io/legado/app/utils/BitmapUtils.kt
View File

@ -1,3 +1,5 @@
@file:Suppress("unused")
package io.legado.app.utils
import android.content.Context
@ -14,7 +16,7 @@ import java.io.IOException
import kotlin.math.*
@Suppress("unused", "WeakerAccess", "MemberVisibilityCanBePrivate")
@Suppress("WeakerAccess", "MemberVisibilityCanBePrivate")
object BitmapUtils {
/**
@ -142,7 +144,6 @@ object BitmapUtils {
return BitmapFactory.decodeStream(inputStream, null, op)
}
//图片不被压缩
fun convertViewToBitmap(view: View, bitmapWidth: Int, bitmapHeight: Int): Bitmap {
val bitmap = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Config.ARGB_8888)
@ -150,7 +151,6 @@ object BitmapUtils {
return bitmap
}
/**
* @param options
* @param minSideLength
@ -220,89 +220,90 @@ object BitmapUtils {
}
}
fun changeBitmapSize(bitmap: Bitmap, newWidth: Int, newHeight: Int): Bitmap {
}
val width = bitmap.width
val height = bitmap.height
fun Bitmap.changeSize(newWidth: Int, newHeight: Int): Bitmap {
val width = this.width
val height = this.height
//计算压缩的比率
var scaleWidth = newWidth.toFloat() / width
var scaleHeight = newHeight.toFloat() / height
if (scaleWidth > scaleHeight) {
scaleWidth = scaleHeight
} else {
scaleHeight = scaleWidth
}
//获取想要缩放的matrix
val matrix = Matrix()
matrix.postScale(scaleWidth, scaleHeight)
//获取新的bitmap
return Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true)
//计算压缩的比率
var scaleWidth = newWidth.toFloat() / width
var scaleHeight = newHeight.toFloat() / height
if (scaleWidth > scaleHeight) {
scaleWidth = scaleHeight
} else {
scaleHeight = scaleWidth
}
/**
* 高斯模糊
*/
fun stackBlur(srcBitmap: Bitmap?, radius: Float = 8f): Bitmap? {
if (srcBitmap == null) return null
val rs = RenderScript.create(appCtx)
val blurredBitmap = srcBitmap.copy(Config.ARGB_8888, true)
//获取想要缩放的matrix
val matrix = Matrix()
matrix.postScale(scaleWidth, scaleHeight)
//分配用于渲染脚本的内存
val input = Allocation.createFromBitmap(
rs,
blurredBitmap,
Allocation.MipmapControl.MIPMAP_FULL,
Allocation.USAGE_SHARED
)
val output = Allocation.createTyped(rs, input.type)
//加载我们想要使用的特定脚本的实例。
val script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs))
script.setInput(input)
//设置模糊半径
script.setRadius(radius)
//启动 ScriptIntrinsicBlur
script.forEach(output)
//将输出复制到模糊的位图
output.copyTo(blurredBitmap)
return blurredBitmap
}
fun getMeanColor(bitmap: Bitmap): Int {
val width: Int = bitmap.width
val height: Int = bitmap.height
var pixel: Int
var pixelSumRed = 0
var pixelSumBlue = 0
var pixelSumGreen = 0
for (i in 0..99) {
for (j in 70..99) {
pixel = bitmap.getPixel(
(i * width / 100.toFloat()).roundToInt(),
(j * height / 100.toFloat()).roundToInt()
)
pixelSumRed += Color.red(pixel)
pixelSumGreen += Color.green(pixel)
pixelSumBlue += Color.blue(pixel)
}
}
val averagePixelRed = pixelSumRed / 3000
val averagePixelBlue = pixelSumBlue / 3000
val averagePixelGreen = pixelSumGreen / 3000
return Color.rgb(
averagePixelRed + 3,
averagePixelGreen + 3,
averagePixelBlue + 3
)
}
//获取新的bitmap
return Bitmap.createBitmap(this, 0, 0, width, height, matrix, true)
}
/**
* 高斯模糊
*/
fun Bitmap.stackBlur(radius: Float = 8f): Bitmap? {
val rs = RenderScript.create(appCtx)
val blurredBitmap = this.copy(Config.ARGB_8888, true)
//分配用于渲染脚本的内存
val input = Allocation.createFromBitmap(
rs,
blurredBitmap,
Allocation.MipmapControl.MIPMAP_FULL,
Allocation.USAGE_SHARED
)
val output = Allocation.createTyped(rs, input.type)
//加载我们想要使用的特定脚本的实例。
val script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs))
script.setInput(input)
//设置模糊半径
script.setRadius(radius)
//启动 ScriptIntrinsicBlur
script.forEach(output)
//将输出复制到模糊的位图
output.copyTo(blurredBitmap)
return blurredBitmap
}
/**
* 取平均色
*/
fun Bitmap.getMeanColor(): Int {
val width: Int = this.width
val height: Int = this.height
var pixel: Int
var pixelSumRed = 0
var pixelSumBlue = 0
var pixelSumGreen = 0
for (i in 0..99) {
for (j in 70..99) {
pixel = this.getPixel(
(i * width / 100.toFloat()).roundToInt(),
(j * height / 100.toFloat()).roundToInt()
)
pixelSumRed += Color.red(pixel)
pixelSumGreen += Color.green(pixel)
pixelSumBlue += Color.blue(pixel)
}
}
val averagePixelRed = pixelSumRed / 3000
val averagePixelBlue = pixelSumBlue / 3000
val averagePixelGreen = pixelSumGreen / 3000
return Color.rgb(
averagePixelRed + 3,
averagePixelGreen + 3,
averagePixelBlue + 3
)
}

2
app/src/main/java/io/legado/app/utils/QRCodeUtils.kt
View File

@ -182,7 +182,7 @@ object QRCodeUtils {
hints: Map<DecodeHintType?, Any?> = DecodeFormatManager.ALL_HINTS
): Result? {
if (bitmap.width > reqWidth || bitmap.height > reqHeight) {
val bm = BitmapUtils.changeBitmapSize(bitmap, reqWidth, reqHeight)
val bm = bitmap.changeSize(reqWidth, reqHeight)
return parseCodeResult(getRGBLuminanceSource(bm), hints)
}
return parseCodeResult(getRGBLuminanceSource(bitmap), hints)