PicassoDrawable cannot be cast to BitmapDrawable

[sdqhzhm]

onDraw() in my CustomImageView

Drawable drawable = getDrawable();
Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();

java.lang.ClassCastException: com.squareup.picasso.PicassoDrawable cannot be cast to android.graphics.drawable.BitmapDrawable

[JakeWharton]

If you want access to the Bitmap directly then you'll need to use the Target callbacks. The PicassoDrawable is used to allow fading and the debug indicator.

[hboregio]

Hey @JakeWharton I'm having the same issue (I need to access the Drawable after loading the image to apply some effects). What exactly do you mean by the Target callbacks? Thanks.

[dnkoutso]

private Target target = new Target() {
      @Override
      public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {       
      }

      @Override
      public void onBitmapFailed() {
      }
    }

private void someMethod() {
   Picasso.with(this).load("url").into(target);
}

@Override public void onDestroy() {  // could be in onPause or onStop
   Picasso.with(this).cancelRequest(target);
}

Don't create anonymous class of Target when calling Picasso as might get garbage collected. Keep a member field as a strong reference to prevent it from being gc'ed.

[hboregio]

Perfect, thanks!

[trietbui85]

So, if I load image into an ImageView first. And later, I want to retrieve its Bitmap to share/save..., then I must call Picasso.with(this).load("url").into() twice? One for into(imageview), and one for into(target)?

[JakeWharton]

If you know you want the Bitmap then you should always use Target and set
it on the ImageView yourself.
On Dec 19, 2013 7:38 AM, "anticafe" notifications@github.com wrote:

So, if I load image into an ImageView first. And later, I want to retrieve
its Bitmap to share/save..., then I must call
Picasso.with(this).load("url").into() twice? One for into(imageview), and
one for into(target)?

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[kjakah08]

I am trying to download, insert the image into a Drawable and append to an EditText. I have the following configuration. I do not believe the method onBitmapLoaded, is being called, How can I call that method so the functionality works?

Code:

                        @Override
                        public void onBitmapLoaded(Bitmap bitmap,
                                LoadedFrom loaded) {
                            Drawable drawImage = new BitmapDrawable(
                                    getBaseContext().getResources(), bitmap);


                            messageHistoryText.append(Html.fromHtml("<b>"
                                    + username + ":" + "</b>" + "<br>"));
                            messageHistoryText.append(Html.fromHtml(message
                                    + "<hr>" + "<br>")
                                    + System.getProperty("line.separator") + "");

                            messageHistoryText.append(Html
                                    .fromHtml("<img src = '" + drawImage
                                            + "'/>"));
                        }

[MizzleDK]

First of all, that's a horrible design. It would never work, but even if it did, it'd be a horrible way of doing things. You can't use a Drawable as the source of an image in HTML. That's just not possible.

I'd suggest you start from scratch and work on a better design that uses Android's native components, i.e. layouts of Views and ViewGroups, rather than what you're trying to do. It'll be easier to deal with, it'll be much better performance-wise and you'll be doing something that feels home on the platform.

Also, this is rather off-topic. Not related to this issue. Ask questions on sites like StackOverflow if you have any issues.

[dallasgutauckis]

Whoa. Not exactly the worst in the world. After all this concept does
exist. Consider what an emoji is. See
http://developer.android.com/reference/android/text/style/ImageSpan.html
On Aug 8, 2014 8:32 PM, "Michell Bak" notifications@github.com wrote:

First of all, that's a horrible design. It would never work, but even if
it did, it'd be a horrible way of doing things. You can't use a Drawable as
the source of an image in HTML. That's just not possible.

I'd suggest you start from scratch and work on a better design that uses
Android's native components, i.e. layouts of Views and ViewGroups, rather
than what you're trying to do. It'll be easier to deal with, it'll be much
better performance-wise and you'll be doing something that feels home on
the platform.

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#38 (comment).

[kjakah08]

Yes, I'm simply building a prototype. Is there a simple configuration to do what I am trying to do. ie. Download image from a URL and then append to an EditText? Either using Picasso or another straightforward configuration?

[MizzleDK]

@dallasgutauckis There's a big difference between ImageSpan and what he's trying to achieve. He's mixing HTML code and Java objects, expecting it to work.

@kjakah08 Like I said, this isn't really the place for this kind of support. Anyway, you could probably make it work by converting the image data to base64 and use that in your HTML code. It's rather hacky and nasty, though. I wonder if there's not a better way to do what you're looking to do. Downloading an image to display in an EditText seems rather odd.

[dnkoutso]

Are you using an anonymous Target? Please make your view implement target otherwise it gets gc'ed.

What you do in onBitmapLoaded() is up to you!

[kjakah08]

@dnkoutso Yes I am using an anonymous target. How can I get the view to implement target?

[dnkoutso]

public class MyView extends something implements Target

[kjakah08]

@dnkoutso How can I implement target if the view is within the onCreate in Android? as

protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        setContentView(R.layout.message); // messaging_screen);

        messageHistoryText = (EditText) findViewById(R.id.messageHistory);

        messageText = (EditText) findViewById(R.id.message);

[dnkoutso]

Either update your XML to return your custom view that implements the Target or just have a private field on top of your class that is the target.

Please look online for a short tutorial on how to do this and/or learn about WeakReferences.

[kjakah08]

@dnkoutso Thank you for the help! Any suggestions for the tutorial?

[kjakah08]

@dnkoutso Thank you, I discovered the method below, and putting that on another thread seamlessly allowed me to do exactly what I was attempting, no Picasso required:

public static Drawable LoadImageFromWebOperations(String url) {
        try {
            InputStream is = (InputStream) new URL(url).getContent();
            Drawable d = Drawable.createFromStream(is, "src name");
            return d;
        } catch (NullPointerException e) {
            e.printStackTrace();

        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }

[akadouri]

@kjakah08 Using InputStream won't include image caching

[kjakah08]

@akadouri Will there be an issue if caching is not enabled?

[akadouri]

@kjakah08 you're going to be redowloading the images every time, you also have to wrap that call in an AsyncTask or something or it'll be running on the main thread, and you're also going to have to cancel the call if its not complete by the time the user leaves the screen. The whole point of the Picasso library is that it does the call, cache, transformations, etc for you. If you look at https://github.com/square/picasso/blob/master/picasso/src/main/java/com/squareup/picasso/Downloader.java you can see that they use InputStream to download as well.

[sanatpandey]

@kjakah08 I am having the same problem, that I want to use the drawables that are generated by the Picasso for Image Caching Purpose, but I am not able to get the same. Here is the code which I am using to access the Bitmap Drawables :

Target targetBitmap = new Target() {

            @Override
            public void onPrepareLoad(Drawable arg0) {

            }

            @Override
            public void onBitmapLoaded(Bitmap arg0, Picasso.LoadedFrom arg1) {
                mBitmap = arg0;
                BitmapDrawable d = new BitmapDrawable(context.getResources(), arg0);

                int margin = 2;
                int border = 0;

                Rect r = new Rect(margin, margin, width - margin, height - margin);

                int imageWidth = r.width();
                int imageHeight = r.height();

                if (imageHeight > r.height() - (border * 2)) {
                    imageHeight = r.height() - (border * 2);
                }

                r.left += ((r.width() - imageWidth) / 2) - border;
                r.right = r.left + imageWidth + border + border;
                r.top += ((r.height() - imageHeight) / 2) + border;
                r.bottom = r.top + imageHeight + border + border;

                Paint p = new Paint();
                p.setColor(0xFFFFFF);

                c.drawRect(r, p);
                r.left += border;
                r.right -= border;
                r.top += border;
                r.bottom -= border;
                d.setBounds(r);
                d.draw(c);
            }

            @Override
            public void onBitmapFailed(Drawable arg0) {

            }
        };

        Picasso.with(context).load(app.getListBookDetails().get(img_num).getImage_150x225()).into(targetBitmap);

But here onBitmapLoaded method is never called. How can I access this method ? Please help if you can. I have scratched everything but has gone all in vain.

Thanks
Sanat

[kjakah08]

I went away from Picasso and used a java method to pull straight from the
internet, in Android it turned out to be allot easier!

On Mon, Sep 22, 2014 at 9:06 AM, sanatpandey notifications@github.com
wrote:

@kjakah08 https://github.com/kjakah08 I am having the same problem,
that I want to use the drawables that are generated by the Picasso for
Image Caching Purpose, but I am not able to get the same. Here is the code
which I am using to access the Bitmap Drawables :

Target targetBitmap = new Target() {

        @Override
        public void onPrepareLoad(Drawable arg0) {

        }

        @Override
        public void onBitmapLoaded(Bitmap arg0, Picasso.LoadedFrom arg1) {
            mBitmap = arg0;
            BitmapDrawable d = new BitmapDrawable(context.getResources(), arg0);

            int margin = 2;
            int border = 0;

            Rect r = new Rect(margin, margin, width - margin, height - margin);

            int imageWidth = r.width();
            int imageHeight = r.height();

            if (imageHeight > r.height() - (border * 2)) {
                imageHeight = r.height() - (border * 2);
            }

            r.left += ((r.width() - imageWidth) / 2) - border;
            r.right = r.left + imageWidth + border + border;
            r.top += ((r.height() - imageHeight) / 2) + border;
            r.bottom = r.top + imageHeight + border + border;

            Paint p = new Paint();
            p.setColor(0xFFFFFF);

            c.drawRect(r, p);
            r.left += border;
            r.right -= border;
            r.top += border;
            r.bottom -= border;
            d.setBounds(r);
            d.draw(c);
        }

        @Override
        public void onBitmapFailed(Drawable arg0) {

        }
    };

    Picasso.with(context).load(app.getListBookDetails().get(img_num).getImage_150x225()).into(targetBitmap);

But here onBitmapLoaded method is never called. How can I access this
method ? Please help if you can. I have scratched everything but has gone
all in vain.

Thanks
Sanat

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#38 (comment).

Kimiebi J. Akah
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