kotlin - 如何在 Kotlin Compose 桌面中加载图像？

Question

在桌面上使用 Kotlin compose 时如何从硬盘加载图像？

Answer 1

您可以使用此功能获取 ImageAsset

fun imageFromFile(file: File): ImageAsset {
    return org.jetbrains.skia.Image.makeFromEncoded(file.readBytes()).asImageAsset()
}

完整示例:

import androidx.compose.desktop.Window
import androidx.compose.foundation.Image
import androidx.compose.runtime.remember
import androidx.compose.ui.graphics.ImageAsset
import androidx.compose.ui.graphics.asImageAsset
import java.io.File

fun main() = Window {
   val file = File("D:\\images\\my_image.PNG")
   val image = remember { imageFromFile(file) }

   Image(asset = image)
}

fun imageFromFile(file: File): ImageAsset {
   return org.jetbrains.skia.Image.makeFromEncoded(file.readBytes()).asImageAsset()
}