DownloadImageActivity.java

package com.godoro.androidclients;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import java.io.BufferedInputStream;
import java.net.URL;
import java.net.URLConnection;


public class DownloadImageActivity extends Activity {

    private TextView messageView;
    private ImageView imageView;
    private String imageAddress="http://www.godoro.com/images/GodoroSymbolAndNameSmall.jpg";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_download_image);
        messageView=(TextView) findViewById(R.id.messageView);
        imageView=(ImageView) findViewById(R.id.imageView);
    }
    public void onClickDownloadImage(View view){
        Runnable runnable=new Runnable() {
            @Override
            public void run() {
                retrieveImage();
            }
        };
        Thread thread=new Thread(runnable);
        thread.start();
    }

    private void retrieveImage(){
        try {
            final Bitmap bitmap=downloadBitmap(imageAddress);
            Runnable action=new Runnable() {
                @Override
                public void run() {
                    showImage(bitmap);
                }
            };
            runOnUiThread(action);
        }catch(Exception e){
            Log.e("GodoroAndroid","İndirme yanlışı",e);
        }
    }
    private void showImage(Bitmap bitmap){
        imageView.setImageBitmap(bitmap);
        messageView.setText(R.string.imageDownloaded);
    }
    private static Bitmap downloadBitmap(String imageAddress){
        try {
            URL url = new URL(imageAddress);
            URLConnection conn = url.openConnection();
            BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());
            Bitmap bitmap = BitmapFactory.decodeStream(bis);
            return bitmap;
        }catch (Exception e){
            Log.e("GodoroAndroid", "Görüntü indirme yanlışı", e);
            return null;
        }
    }

}