fun Context.assetsToBitmap(fileName: String): Bitmap?{
return try {
with(assets.open(fileName)){
BitmapFactory.decodeStream(this)
}
} catch (e: IOException) { null }
}
更新 Android Studio 为你制作的
onCreate
函数以根据其 ID 查找ImageView 控件,并将
资产文件夹中的图像之一加载到其中:
val img: ImageView = findViewById(R.id.imageToLabel)
// assets folder image file name with extension
val fileName = "figure4-1.jpg"
// get bitmap from assets folder
val bitmap: Bitmap? = assetsToBitmap(fileName)
bitmap?.apply {
img.setImageBitmap(this)
}
你现在可以运行应用程序来测试它是否正确加载了图像 ...
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