How to change or transform an ImageView to a object or a string?

Question

How to change or transform an ImageView to a object or a string? So, I can send that imagview as a String to API.

Example, I have 4 id imageview from xml :

@+id/q1
@+id/q2
@+id/q3
@+id/q4

and i want to change all those imageviews to be a string in Java. So, i can send them to API as a JSON like this :

 {
     option_code: 'rp001o001', 
     option_value: 'Likuiditas dan keamanan investasi'
    }

option_code: 'rp001o001' is the paramater that i get from ImageView. How to make it possible?

Thank you.

do you want to send the `ImageView`, or an image from `ImageView`? There is no sense sending ImageView. — Vladyslav Matviienko, Jan 30 '17 at 06:27
send image and seperate parameter id of Imageview if required in json — pkgrover, Jan 30 '17 at 06:29
the logic is I have 1 question with 4 answers, each answer is a ImageView or ImageButton. I want to send each image with different id to API as a value of paramater "option_code" @VladMatvienko — Pandu Abbiyuarsyah, Jan 30 '17 at 06:35
i want to send an image as a object, like change a image to be a string or a object. So, the image that i send to API is option_code: 'rp001o001'. 'rp001o001' is the value of the image that i send. is it possible? @VladMatvienko — Pandu Abbiyuarsyah, Jan 30 '17 at 06:42

score 0 · Accepted Answer · edited May 23 '17 at 12:16

byte[] is best way to send data from android phone to server , You need to convert Image into byte[] check below method

// convert from bitmap to byte array

public byte[] getBytesFromBitmap(Bitmap bitmap) {
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bitmap.compress(CompressFormat.JPEG, 70, stream);
    return stream.toByteArray();
}

// get the base 64 string

String imgString = Base64.encodeToString(getBytesFromBitmap(someImg), 
                       Base64.NO_WRAP);

Thank for this guy -https://stackoverflow.com/a/5333971/4741746

score 0 · Answer 2 · answered Jan 30 '17 at 07:23

First get the image as an bitmap from the imageview and convert them into base64 string. Here's how you do it:

BitmapDrawable drawable = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmapOrg= drawable.getBitmap();
ByteArrayOutputStream bao = new ByteArrayOutputStream();
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 100, bao);
byte [] ba = bao.toByteArray();
String ba1=Base64.encodeToString(ba,Base64.DEFAULT);

Here ba1 is your image string.

score -1 · Answer 3 · edited May 23 '17 at 12:16

-1

just convert your image to a base 64 string and store it in your server and do the reverse to show the image in your app later

how to convert an image into base64 string

edited May 23 '17 at 12:16

Community

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answered Jan 30 '17 at 06:55

saravanan r

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How to change or transform an ImageView to a object or a string?

3 Answers3