Android从URL加载图像并显示imageview

Question

i try to load image fro url and show imageview.i wrote code witch can download image and show it.but now i want to download facebook user image and show it.i know how i can check facebook user image "like this http://graph.facebook.com/user id /picture?width=80&height=80 when i run programm i have RuntimeException this is a my source

private class GetXMLTask extends AsyncTask<String, Void, Bitmap> {
    @Override
    protected Bitmap doInBackground(String... urls) {
        Bitmap map = null;
        for (String url : urls) {
            map = downloadImage(url);
        }
        return map;
    }

    // Sets the Bitmap returned by doInBackground
    @Override
    protected void onPostExecute(Bitmap result) {
        user_img.setImageBitmap(result);
    }

    // Creates Bitmap from InputStream and returns it
    private Bitmap downloadImage(String url) {
        Bitmap bitmap = null;
        InputStream stream = null;
        BitmapFactory.Options bmOptions = new BitmapFactory.Options();
        bmOptions.inSampleSize = 1;

        try {
            stream = getHttpConnection(url);
            bitmap = BitmapFactory.decodeStream(stream, null, bmOptions);
            stream.close();
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        return bitmap;
    }

    // Makes HttpURLConnection and returns InputStream
    private InputStream getHttpConnection(String urlString)
            throws IOException {
        InputStream stream = null;
        URL url = new URL(urlString);
        URLConnection connection = url.openConnection();

        try {
            HttpURLConnection httpConnection = (HttpURLConnection) connection;
            httpConnection.setRequestMethod("GET");
            httpConnection.connect();

            if (httpConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
                stream = httpConnection.getInputStream();
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return stream;
    }
}



new GetXMLTask().execute((new String[] { URL }));

if my url would be for example http://mywebsite./pic.jpg then program working perfect but i want show facebook user image

Answer 1

You should be using picasso. Add dependency into your project. And further just a singe line of code will do the task. Picasso.with(context).load(" http://somepath/someimage.png ").into(imageView); No need of writing thread and optimizing bitmaps.

You can refer : http://square.github.io/picasso/