How to load an ImageView by URL in Android? [closed]

Answer 1

From Android developer:

// show The Image in a ImageView
new DownloadImageTask((ImageView) findViewById(R.id.imageView1))
            .execute("http://java.sogeti.nl/JavaBlog/wp-content/uploads/2009/04/android_icon_256.png");

public void onClick(View v) {
    startActivity(new Intent(this, IndexActivity.class));
    finish();

}

private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
    ImageView bmImage;

    public DownloadImageTask(ImageView bmImage) {
        this.bmImage = bmImage;
    }

    protected Bitmap doInBackground(String... urls) {
        String urldisplay = urls[0];
        Bitmap mIcon11 = null;
        try {
            InputStream in = new java.net.URL(urldisplay).openStream();
            mIcon11 = BitmapFactory.decodeStream(in);
        } catch (Exception e) {
            Log.e("Error", e.getMessage());
            e.printStackTrace();
        }
        return mIcon11;
    }

    protected void onPostExecute(Bitmap result) {
        bmImage.setImageBitmap(result);
    }
}

Make sure you have the following permissions set in your AndroidManifest.xml to access the internet.

<uses-permission android:name="android.permission.INTERNET" />

Answer 2

The best modern library for such a task in my opinion is Picasso by Square. It allows to load an image to an ImageView by URL with one-liner:

Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);

Answer 3

A simple and clean way to do this is to use the open source library Prime.

Answer 4

This is a late reply, as suggested above AsyncTask will will and after googling a bit i found one more way for this problem.

Drawable drawable = Drawable.createFromStream((InputStream) new URL("url").getContent(), "src");

imageView.setImageDrawable(drawable);

Here is the complete function:

public void loadMapPreview () {
    //start a background thread for networking
    new Thread(new Runnable() {
        public void run(){
            try {
                //download the drawable
                final Drawable drawable = Drawable.createFromStream((InputStream) new URL("url").getContent(), "src");
                //edit the view in the UI thread
                imageView.post(new Runnable() {
                    public void run() {
                        imageView.setImageDrawable(drawable);
                    }
                });
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }).start();
}

Don't forget to add the following permissions in your AndroidManifest.xml to access the internet.

<uses-permission android:name="android.permission.INTERNET" />

I tried this myself and i have not face any issue yet.

Answer 5

I wrote a class to handle this, as it seems to be a recurring need in my various projects:

https://github.com/koush/UrlImageViewHelper

UrlImageViewHelper will fill an ImageView with an image that is found at a URL.

The sample will do a Google Image Search and load/show the results asynchronously.

UrlImageViewHelper will automatically download, save, and cache all the image urls the BitmapDrawables. Duplicate urls will not be loaded into memory twice. Bitmap memory is managed by using a weak reference hash table, so as soon as the image is no longer used by you, it will be garbage collected automatically.

Answer 6

    private Bitmap getImageBitmap(String url) {
        Bitmap bm = null;
        try {
            URL aURL = new URL(url);
            URLConnection conn = aURL.openConnection();
            conn.connect();
            InputStream is = conn.getInputStream();
            BufferedInputStream bis = new BufferedInputStream(is);
            bm = BitmapFactory.decodeStream(bis);
            bis.close();
            is.close();
       } catch (IOException e) {
           Log.e(TAG, "Error getting bitmap", e);
       }
       return bm;
    }