CODEWITHSUNDEEP
android
AndroidDev
AndroidDev

Reputation: 4559

Split image into chunks

I am attempting to split an image into pieces, lets say for example 16 chunks (4x4).Once i split the image how can i display these chunk image as a whole.

Should I use a bitmap or a drawable? Is there a method to split or will I have to make a custom method?

Upvotes: 6

Views: 2449

Answers (2)

Rocker
Rocker

Reputation: 681

Use bitmap because it holds pixel of the image which will be good for you for future use, if you are willing to display that image.

for example ---->

 Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.icon);
   ImageView iv = (ImageView) findViewById(R.id.imageView1);
   iv.setImageBitmap(bm);

------------------------------------EDITED PART--------------------------------------------

if you want to send image from place to another(one device to another), you to convert it into byte array like this --->

Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.icon);
 ByteArrayOutputStream baos = new ByteArrayOutputStream();
 bm.compress(Bitmap.Compress.JPEG, 100, baos);
 byte[] b = baos.toByteArray();

and then send this to the other device.

Upvotes: 1

Pete Houston
Pete Houston

Reputation: 15089

You can make use of Canvas, with drawing functionality, splitting it into chunks and set each to 4x4 ImageView.

@note:

  • as in my experiences, Bitmap will give better performance than Drawable.
  • reduce image size and quality enough to display on screen first, then splitting and setting to ImageView.

You can refer to my list of image processing article to get some idea about it. Practically, it's not so hard :)

Upvotes: 0

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