Bitmap not loading in Imageview

Question

I am loading bitmap from a twitter feed. I am using below code

private class getBitmapFromLink extends AsyncTask<String, Void, Bitmap> {
    private ImageView imgView;

    public getBitmapFromLink(ImageView imgView) {
        this.imgView = imgView;
    }

    @Override
    protected Bitmap doInBackground(String... params) {
        Bitmap myBitmap;
        try {
            URL url = new URL(params[0]);
            HttpURLConnection connection = (HttpURLConnection) url
                    .openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStream input = connection.getInputStream();
            myBitmap = BitmapFactory.decodeStream(input);
            return myBitmap;
        } catch (IOException e) {
            Log.v("BITMAP", e.getMessage());
            return null;
        } catch (Exception e) {
            Log.v("BITMAP", e.getMessage());
            return null;
        }

    }

    @Override
    protected void onPostExecute(Bitmap result) {
        imgView.setImageBitmap(result);
        imgView.invalidate();
    }

}

When I debug myBitmap = BitmapFactory.decodeStream(input); line it directly come to catch block and on return null line. While debugging I tried printing error message on logs but it does not execute that line and directly come to return statement.

Thanks in Advance

is the url valid? Why don't you use Picasso or Fresco to deal with pictures ? — Blackbelt, Dec 21 '15 at 10:41
yes. url is valid - http://pbs.twimg.com/media/CWgUjyHUAAA7eZ3.jpg — unflagged.destination, Dec 21 '15 at 10:43
use picasso to load image from url, you can check examples here http://stackoverflow.com/questions/20181491/use-picasso-to-get-a-callback-with-a-bitmap — karan, Dec 21 '15 at 10:44
post the stacktrance of the exception, using `e.printStackTrace()` — Blackbelt, Dec 21 '15 at 10:45
That log line is not executing. It directly come to return statement in catch block — unflagged.destination, Dec 21 '15 at 10:48
@unflagged.destination ....Is my solution workable for you or not??Please let me know if there any concern — Ravindra Kushwaha, Dec 21 '15 at 11:12

Ravindra Kushwaha · Answer 1 · 2015-12-21T10:58:30.440

You can use the Universal Image Loader and than

  imageLoader = ImageLoader.getInstance(); // Get singleton instance
    ImageLoader.getInstance().init(ImageLoaderConfiguration.createDefault(ProfileScreen.this));
    imageLoader = com.nostra13.universalimageloader.core.ImageLoader.getInstance();
    imageOptions = new DisplayImageOptions.Builder()
            .showImageOnFail(R.drawable.user_icon)
            .showImageOnLoading(R.drawable.user_icon)
            .showImageForEmptyUri(R.drawable.user_icon)
            .cacheInMemory(true)
            .resetViewBeforeLoading(true)
            .build();

And than where you get the url use these lines of code

     iimageLoader.displayImage("your url", imgView, imageOptions);

                            imageLoader.loadImage("your url", new SimpleImageLoadingListener() {
                                @Override
                                public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                                    // Do whatever you want with Bitmap
                                    imgView.setImageBitmap(loadedImage);

                                }
                            });

You can also use the Picasso library to perform yours operation... for that you can use these lines of code for it

Picasso.with(getContext()).load("your url").into(new Target() {
                @Override
                public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
                    //do what ever you want with your bitmap 
                  imgView.setImageBitmap(loadedImage);
                }

                @Override
                public void onBitmapFailed(Drawable errorDrawable) {

                }

                @Override
                public void onPrepareLoad(Drawable placeHolderDrawable) {

                }
            });

@unflagged.destination ...Is these solution helpful for you...plz do up-vote or accept if it is helpful for you — Ravindra Kushwaha, Dec 29 '15 at 07:29

Bitmap not loading in Imageview

1 Answers1