trying to use recycle bitmap

Question

    for (int imageId : mImageIds) {
            Bitmap originalImage;
            originalImage= BitmapFactory.decodeResource(
                    getResources(), imageId);
            ImageView imageView=null;
            imageView = new ImageView(mContext);
            imageView.setImageBitmap(originalImage);
            imageView.setLayoutParams(new myView.LayoutParams(
                    (int) ((6 * width) / 10), MenuHeight));
            Log.i("MenuHeight", "" + MenuHeight);
            Log.i("MenuWidth", "" + (6 * width) / 10);

            imageView.setScaleType(ScaleType.MATRIX);
            mImages[index++] = imageView;
            originalImage.recycle();

        }

I am using this snippet and its giving exception trying to use recycle bitmap, if I didn't recycle the bitmap it will consume memory, so can you please tell me when and where it's best to use bitmap.recycle in any code.

check here [SoftReference](http://stackoverflow.com/questions/4580006/does-softreference-calls-recycle-on-bitmap-object) — zetsin, Oct 18 '12 at 12:06

score 0 · Answer 1 · answered Oct 18 '12 at 11:58

this will fix it:

     for (int imageId : mImageIds) {
         if(originalImage!=null && !originalImage.isRecycled()){             
                Bitmap originalImage;
                originalImage= BitmapFactory.decodeResource(
                        getResources(), imageId);
                ImageView imageView=null;
                imageView = new ImageView(mContext);
                imageView.setImageBitmap(originalImage);
                imageView.setLayoutParams(new myView.LayoutParams(
                        (int) ((6 * width) / 10), MenuHeight));
                Log.i("MenuHeight", "" + MenuHeight);
                Log.i("MenuWidth", "" + (6 * width) / 10);

                imageView.setScaleType(ScaleType.MATRIX);
                mImages[index++] = imageView;

                originalImage.recycle();
                originalImage = null;
           }
}

What if you don't use the recycle function here but implement it in the onDestroy function of the activity? — noxius, Oct 18 '12 at 12:14

score 0 · Answer 2 · edited May 23 '17 at 11:43

0

It throw an exception cause your bitmap is used in your ImageView. To call recycle, your bitmap doesn't have to be linked to a view.

As all your pictures seem to be displayed (or linked to a physic view object), you can't recycle.

A way to handle your problem is use less memory for each pictures.

See this post: how to compress image for imageview in android

edited May 23 '17 at 11:43

Community

1
1

answered Oct 18 '12 at 12:14

Astrorvald

223
1
9

trying to use recycle bitmap

2 Answers2