null drawable from Picasso ImageView

Question

Basically, I am trying to convert a URI -> ImageView (via Picasso) -> Drawable.

var tempimg = ImageView(this)
var a: String
var d: Drawable

    a = pageURIFd + page
    Picasso.get().load(a).into(tempimg)
    d = tempimg.getDrawable() as BitmapDrawable
    bitmaps.add(d)

I know the ImageView is not empty after Picasso loads it because I can display the image. But the line below is returning null. I'm trying to add each drawable to an arraylist.

d = tempimg.getDrawable() as BitmapDrawable

tempimg= findViewById(R.id.ImageView) initilization is missing — Atif AbbAsi, Apr 17 '18 at 06:29
Alternatively, Get bitmap from `Picasso` and convert into `BitmapDrawable`. — Paresh P., Apr 17 '18 at 06:34
`tempimg.getDrawable()` is not null but `tempimg.getDrawable() as BitmapDrawable` is null? — Peter Samokhin, Apr 17 '18 at 06:35
why do you use ImageView at all, if you don't need it, and want only a Bitmap? — Vladyslav Matviienko, Apr 17 '18 at 06:35
Sorry, new to android and kotlin. They're both null. I think Wizard has the best suggestion so far. — Zim, Apr 17 '18 at 06:46

score 0 · Accepted Answer · answered Apr 17 '18 at 11:21

First, Picasso.get().load(a).into(tempimg) is asynchronous. Picasso will do the request in a thread and when it get the result, set it to the ImageView. The next lines of code can't get the result of Picasso.

If you would like to get a Bitmap, you can ask Picasso to return it. See Use Picasso to get a callback with a Bitmap

null drawable from Picasso ImageView

1 Answers1