Retrieve data from mysql php to Android

Question

This is how normally we retrieve raw data from server with httppost or get. This is one of the tutorial from google search Tutorial link

use a HttpPost to get the data,
convert response to string parse
JSON data, and use it as you want

But what if i want retrieve data and together with related image into my android apps?What is the appropriate method to go for?

This is example of my data.

id    image_name  caption
 1      01.jpg     Abcd

and my image store in somewhere of my server.

upload/background_image/01.jpg

Pramod J George · Accepted Answer · 2013-01-24 08:39:09Z

2

Convert the image in base64 string in the server side, and retrieve it from the application. then use the following to decode the base64 string into bitmap

public static String encodeTobase64(Bitmap image)
{
    Bitmap immagex=image;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();  
    immagex.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    byte[] b = baos.toByteArray();
    String imageEncoded = Base64.encodeToString(b,Base64.DEFAULT);

   // Log.e("LOOK", imageEncoded);
    return imageEncoded;
}
public static Bitmap decodeBase64(String input) 
{
    byte[] decodedByte = Base64.decode(input, 0);
    return BitmapFactory.decodeByteArray(decodedByte, 0, decodedByte.length); 
}

answered Jan 24, 2013 at 8:39

Pramod J George

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4 Comments

Leon Armstrong Over a year ago

Thanks , i think this is what i want , can this conversion done in php(client side)? what if i want to do caching in my apps, will it be difficult?

Pramod J George Over a year ago

do you want to cache the images in the android device

Leon Armstrong Over a year ago

Yes , I want to cache it , will it be a problem if i follow your way?

Pramod J George Over a year ago

It depends on the size and count of the image.

goosman.lei · Accepted Answer · 2013-01-24 07:44:12Z

2

you can response them as url, and when you need the image content, issue another request.

or

you can read the image content, base64_encode it and response as string

answered Jan 24, 2013 at 7:44

goosman.lei

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