How to convert int array to bitmap array list

Question

I have an int array list which is used in an adapter to display images in gallery component.

int[] images = { R.drawable.hm1, R.drawable.hm2, R.drawable.hm3,
        R.drawable.hm4, R.drawable.hm5, R.drawable.hm6, R.drawable.hm7,
        R.drawable.hm8, R.drawable.hm9, R.drawable.hm10, R.drawable.hm11,
        R.drawable.hm12, R.drawable.hm13, R.drawable.hm14, R.drawable.hm15,
        R.drawable.hm16, R.drawable.hm17, R.drawable.hm18, R.drawable.hm19,
        R.drawable.hm20 };

Also i have a link to camera from my application, where we r saving the image to bitmap..i want to update the bitmap image to gallery component everytime i save it. Can u help me for this..?

Thanks in advance.

Fetch all the images taken from that "your" camera link that you have, and then call adapter.notifyDataSetChanged() method. — Paresh Mayani
– Paresh Mayani, Commented Oct 31, 2011 at 5:47
iam not knowing how to add bitmap image (saved from camera to my app) to the int array list, do i need to convert int array to bitmap array.. or can we get the int value of the bitmap to add it to the array?? — bharath
– bharath, Commented Oct 31, 2011 at 5:48

MKJParekh · Accepted Answer · 2011-10-31 06:23:17Z

1

To Make Bitmap from the Resource

Bitmap b = BitmapFactory.decodeResource(getResources(), R.drawable.icon);

If you need can make array of the bitmap like this decoding each element.

When you take new image you can add that image to your array/list and update the adapter using notifyDataSetChanged.

Bitmap[] images = { BitmapFactory.decodeResource(getResources
(),R.drawable.hm1),BitmapFactory.decodeResource(getResources   
(),R.drawable.hm2),BitmapFactory.decodeResource(getResources(),R.drawable.hm3)};

edited Oct 31, 2011 at 6:23

answered Oct 31, 2011 at 5:46

MKJParekh

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4 Comments

bharath Over a year ago

So, do i need to change every image's resource id (all) to bitmap and create a bitmap list..??

MKJParekh Over a year ago

yeh, if you using your Resource then this is the way to make drawable image to Bitmap object.

bharath Over a year ago

Initially, i have 50-60 images.. Can we create a loop or method to convert all drawable images to bitmap object at once..??

MKJParekh Over a year ago

you can make Bitmap array as you are creating int Array. just use the above method to create Bitmap instance..if gets OOM error then use createScaledBitmap() to minimize the size of bitmap BUT i will suggest you to do some RnD on Your App Requirement and find minimal and efficient way to do the thing.

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