Convert Layout to bmp and download kotlin - kotlin

Question

How to convert a layout into bitmap and download using kotlin in android
i have tried this code but it doesn't work
private fun saveBitMap(context: Context, drawView: View): File {
val pictureFileDir = File(
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
"paymento"
)
//val pictureFileDir = File(cacheDir, "images")
if (!pictureFileDir.exists()) {
val isDirectoryCreated: Boolean = pictureFileDir.mkdirs()
if (!isDirectoryCreated) Log.i("TAG", "Can't create directory to save the image")
}
// val filename: String =
// pictureFileDir.getPath() + File.separator + System.currentTimeMillis()
// .toString() + ".jpg"
val filename:String= "shared_image.png"
val pictureFile = File(filename)
val bitmap = getBitmapFromView(drawView)
try {
pictureFile.createNewFile()
val oStream = FileOutputStream(pictureFile)
bitmap!!.compress(Bitmap.CompressFormat.PNG, 100, oStream)
oStream.flush()
oStream.close()
} catch (e: IOException) {
e.printStackTrace()
Log.i("TAG", "There was an issue saving the image.")
}
scanGallery(context, pictureFile.absolutePath)
return pictureFile
}
private fun scanGallery(cntx: Context, path: String) {
try {
MediaScannerConnection.scanFile(
cntx, arrayOf(path), null
) { path, uri -> }
} catch (e: Exception) {
e.printStackTrace()
Log.i("TAG", "There was an issue scanning gallery.")
}
}
and inside the download button setonclickListener i tried
saveBitMap(this#Fastag,bill_recipt)

Answer 1

Pass your layout as a view to this function. It will return a picture of it as a bitmap:
fun getBitmap(view: View): Bitmap {
val bitmap = Bitmap.createBitmap(view.width, view.height, Bitmap.Config.ARGB_8888)
val canvas = Canvas(bitmap)
view.draw(canvas)
return bitmap
}
You can also save this bitmap to the storage using this function:
fun savePhotoToInternalStorageAsPng(
context: Context,
fileName: String,
bmp: Bitmap
): Boolean {
return try {
context.openFileOutput("$fileName.png", BaseActivity.MODE_PRIVATE)
.use { stream ->
if (!bmp.compress(Bitmap.CompressFormat.PNG, 100, stream)) {
throw IOException("Couldn't save bitmap.")
}
}
true
} catch (e: IOException) {
e.printStackTrace()
false
}
}