Converting bitmap into Base64 not encoding correctly in android.. I not getting image back when decoding

Question

This is my code and I tried lot of code varieties already...

public String getStringImage(Bitmap bmp){ 
    ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
    bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos); 
    byte[] imageBytes = baos.toByteArray(); 
    String encodedImage = Base64.encodeToString(imageBytes,Base64.DEFAULT); 
    return encodedImage; 
}

Yea sir I have tried that too... But result is same.. The conversion is taking place but i think it is not well formatted.. — Sayandh
– Sayandh, Commented Jul 17, 2017 at 5:45
what do you need Base64.encodeToString for? why cannot you use raw bytes instead? — pskink
– pskink, Commented Jul 17, 2017 at 6:24

Shruti · Accepted Answer · 2017-07-17 05:44:14Z

0

You can try following code to encode and decode image:

//Compress img and save
private String encodeBitmapAndSave(Bitmap bitmap1) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bitmap1.compress(Bitmap.CompressFormat.PNG, 100, baos);
    return Base64.encodeToString(baos.toByteArray(), Base64.DEFAULT);
}

//Decompress img 
private Bitmap decodeFromFirebaseBase64(String image) throws IOException {
    byte[] decodedByteArray = Base64.decode(image, Base64.DEFAULT);
    return BitmapFactory.decodeByteArray(decodedByteArray, 0, decodedByteArray.length);
}

answered Jul 17, 2017 at 5:44

Shruti

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10 Comments

Shruti Over a year ago

yup !but you didn't post how you decoding it. And make sure your Bitmap is not empty.

Sayandh Over a year ago

I have checked bitmap is ok its displaying correctly.. But the encoded string is not getting well formatted

Sayandh Over a year ago

hello.... The encoding is correct , i can decode that image from same activity and gets image back... But i need to upload this data string into my sql ... but when uploaded if the original image size is less than 100 kb, But it shows around 1mb in mysql.. Can u please help.

Anshul Tyagi Over a year ago

@Sayandh you must be doing something wrong while saving Base64 into mysql. You should use blobe type for it as shown here

Sayandh Over a year ago

The data type on database is currect is medium blob... and i am sending the data as string to the php page using nameValuepair...

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