How to display image from URL on Android

问题:

I want to display image on screen. Image should come from URL, and not drawable.

Code is here:

<ImageView android:id=\"@+id/ImageView01\" android:src = \"http://l.yimg.com/a/i/us/we/52/21.gif\"
    android:layout_width=\"wrap_content\" android:layout_height=\"wrap_content\"></ImageView>

but it gives error at compile time.

How do I display image from URL in Android?

回答1:

You can directly show image from web without downloading it. Please check the below function . It will show the images from the web into your image view.

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

then set image to imageview using code in your activity.

回答2:

You can try this which I find in another question.

Android, Make an image at a URL equal to ImageView's image

try {
  ImageView i = (ImageView)findViewById(R.id.image);
  Bitmap bitmap = BitmapFactory.decodeStream((InputStream)new URL(imageUrl).getContent());
  i.setImageBitmap(bitmap); 
} catch (MalformedURLException e) {
  e.printStackTrace();
} catch (IOException e) {
  e.printStackTrace();
}

回答3:

I tried this code working for me,get image directly from url

      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);
      }
    }

use inside onCreate() method

new DownloadImageTask((ImageView) findViewById(R.id.image)) .execute(\"http://scoopak.com/wp-content/uploads/2013/06/free-hd-natural-wallpapers-download-for-pc.jpg\");

回答4:

You can try with Picasso, it\'s really nice and easy. Don\'t forget to add the permissions in the manifest.

Picasso.with(context)
                     .load(\"http://ImageURL\")
                     .resize(width,height)
                     .into(imageView );

You can also take a look at a tutorial here : Youtube / Github

回答5:

For simple example,
http://www.helloandroid.com/tutorials/how-download-fileimage-url-your-device

You will have to use httpClient and download the image (cache it if required) ,

solution offered for displaying images in listview, essentially same code(check the code where imageview is set from url) for displaying.

Lazy load of images in ListView

回答6:

I retried an image from a URL and stored on my SD-card using the following code:

public String Downloadfromurl(String Url)
{

 String filepath=null;

 try {

  URL url = new URL(Url);

  //create the new connection

  HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

  //set up some things on the connection
  urlConnection.setRequestMethod(\"GET\");

  urlConnection.setDoOutput(true); 

   //and connect!

  urlConnection.connect();

  //set the path where we want to save the file
  //in this case, going to save it on the root directory of the
  //sd card.

  folder = new File(Environment.getExternalStorageDirectory().toString()+\"/img\");

  folder.mkdirs();

  //create a new file, specifying the path, and the filename
  //which we want to save the file as.

  String filename= \"page\"+no+\".PNG\";   

  file = new File(folder,filename);

  if(file.createNewFile())

  {

   file.createNewFile();

  }

  //this will be used to write the downloaded data into the file we created
  FileOutputStream fileOutput = new FileOutputStream(file);

  //this will be used in reading the data from the internet
  InputStream inputStream = urlConnection.getInputStream();

  //this is the total size of the file
  int totalSize = urlConnection.getContentLength();
  //variable to store total downloaded bytes
  int downloadedSize = 0;

  //create a buffer...
  byte[] buffer = new byte[1024];
  int bufferLength = 0; //used to store a temporary size of the buffer

  //now, read through the input buffer and write the contents to the file
  while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
   //add the data in the buffer to the file in the file output stream (the file on the sd card
   fileOutput.write(buffer, 0, bufferLength);
   //add up the size so we know how much is downloaded
   downloadedSize += bufferLength;
   //this is where you would do something to report the prgress, like this maybe
   Log.i(\"Progress:\",\"downloadedSize:\"+downloadedSize+\"totalSize:\"+ totalSize) ;
  }
  //close the output stream when done
  fileOutput.close();
  if(downloadedSize==totalSize)  
      filepath=file.getPath();

 //catch some possible errors...
 } catch (MalformedURLException e) {
  e.printStackTrace();
 } catch (IOException e) {
  filepath=null;
  e.printStackTrace();
 }
 Log.i(\"filepath:\",\" \"+filepath) ;


 return filepath;

}

回答7:

InputStream URLcontent = (InputStream) new URL(url).getContent();
Drawable image = Drawable.createFromStream(URLcontent, \"your source link\");

this has worked for me

回答8:

Write the code using ASyncTask for http handling.

Bitmap b;
ImageView img;
......
try
    {
        URL url = new URL(\"http://10.119.120.10:80/img.jpg\");
        InputStream is = new BufferedInputStream(url.openStream());
        b = BitmapFactory.decodeStream(is);
    } catch(Exception e){}
......
img.setImageBitmap(b);

回答9:

I\'ve same issue. I test this code and works well. This code Get Image from URL and put in - \"bmpImage\"

URL url = new URL(\"http://your URL\");
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setReadTimeout(60000 /* milliseconds */);
            conn.setConnectTimeout(65000 /* milliseconds */);
            conn.setRequestMethod(\"GET\");
            conn.setDoInput(true);
            conn.connect();
            int response = conn.getResponseCode();
            //Log.d(TAG, \"The response is: \" + response);
            is = conn.getInputStream();


            BufferedInputStream bufferedInputStream = new BufferedInputStream(is);

            Bitmap bmpImage = BitmapFactory.decodeStream(bufferedInputStream);