Wednesday, 3 April 2013

How to display image from URL in android ?

Now we have to explain how to display image from URL. ImageView is used to display image in android. Here we use AsyncTask for loading image from URL.  Now lets we explain it with Example.




Above is our final Screen shot  display image from URL.


 Create new Android Project AndroidAdvanceDisplayImageURL.
 Layout file main.xml looks like following.


 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello"
        android:text />

    <ImageView
        android:id="@+id/my_image"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />
</LinearLayout>



 -> Here we take imageview to display image. Now coding part.


  AndroidAdvanceImageLoad.java

 public class AndroidAdvanceImageLoad extends Activity {

    ImageView my_img;
    Bitmap mybitmap;
    ProgressDialog pd;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        new DisplayImageFromURL((ImageView) findViewById(R.id.my_image))
                .execute("http://www.tmonews.com/wp-content/uploads/2012/10/androidfigure.jpg");

    }
    private class DisplayImageFromURL extends AsyncTask<String, Void, Bitmap> {
        ImageView bmImage;
        @Override
        protected void onPreExecute() {
            // TODO Auto-generated method stub
            super.onPreExecute();
            pd = new ProgressDialog(AndroidAdvanceImageLoad.this);
            pd.setMessage("Loading...");
            pd.show();
        }
        public DisplayImageFromURL(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);
            pd.dismiss();
        }
    }
}


  -> Here we create DisplayImageFromURL class which loads image from URL and display it on imageview. It take 2 arguments one is image id and another is Image URL from which you display image. 

9 comments:

  1. I did the same as your code and it doesnt show anything. It loads when you start the app?

    ReplyDelete
    Replies
    1. This comment has been removed by the author.

      Delete
    2. I think you have not added this code in AndroidManifest.xml

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

      before application tag just add this one line code..
      then check weather Image is coming or not..

      Delete
  2. it doesnt work for me even after writing the permission , it just gives a blank page

    ReplyDelete
  3. I have read your blog its very attractive and impressive. I like it your blog.

    Java Training in Chennai Core Java Training in Chennai Core Java Training in Chennai

    ReplyDelete
  4. I have read your blog its very attractive and impressive. I like it your blog.

    Java Online Training Java Online Training JavaEE Training in Chennai Java EE Training in Chennai

    ReplyDelete
  5. The Android Certification Training blog is very interesting and will be much useful for us. Thank you for sharing the blog with us. Please keep on updating.

    ReplyDelete