Android: Retrieve images from OData Media Link Entry

gistfile1.txt

  
// cut down version
// for each customer
//   retrieve image from OData Media Link Entries  (Util.retrieveBitmap)
//   store image on file  (Util.writeBitmapToFile)
//
//   later on when showing customer retrieve image from file (readBitmapFromFile - drawable)
public List<Customer> getCustomers() throws ProxyException {

		List<Customer> customers = getContactsSVC().getCustomers();

		// images
		Bitmap image;
		String imageName;

		for (Customer c : customers) {
			imageName = c.getCustomerID() + Constants.JPG;

			image = Util.retrieveBitmap(c.getImageURI());

			// TODO use content provider
			File custDir = getDir(Constants.CUSTOMER, Context.MODE_WORLD_READABLE);
			Util.writeBitmapToFile(image, new File(custDir,imageName));
		}



package com.jasper.customer.contacts;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.util.Log;

public abstract class Util {
  public static Bitmap retrieveBitmap(final String urlString) {
		Log.d(Constants.TAG, "making HTTP trip for image:" + urlString);
		Bitmap bitmap = null;
		InputStream stream = null;
		try {
			URL url = new URL(urlString);
			stream = url.openConnection().getInputStream();
			bitmap = BitmapFactory.decodeStream(stream);
		} catch (MalformedURLException e) {
			Log.e(Constants.TAG, "Exception loading image, malformed URL",
					e);
		} catch (IOException e) {
			Log.e(Constants.TAG, "Exception loading image, IO error", e);
		} finally {
			try {
				if (stream != null) {
					stream.close();
				}
			} catch (IOException e) {
				Log.w(Constants.TAG, "Error closing stream", e);
			}
		}
		return bitmap;
	}


	public static BitmapDrawable readBitmapFromFile(File imageFile) {
		BitmapDrawable result = null;
		result = new BitmapDrawable(imageFile.getAbsolutePath());
		return result;
	}


	public static BitmapDrawable readBitmapFromInputStream(Resources resources,
			InputStream inputStream) {
		BitmapDrawable result = null;
		result = new BitmapDrawable(resources, inputStream);

		return result;
	}

	public static void writeBitmapToFile(Bitmap image, File location) {

		try {
			FileOutputStream out = new FileOutputStream(location);
			image.compress(Bitmap.CompressFormat.JPEG, 90, out);
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

}

		return customers;
	}