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POResizing images to fit into ViewPager, outOfMemory exception
 

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  1. POResizing images to fit into ViewPager, outOfMemory exception
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    <p>I've setup a viewPager which should show around 50 images with a resolution of 1500,2100px. The images are provided by the user self. So I need to downscale the images which I do with this bit of code:</p> <pre><code>WindowManager wm = (WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE); Display display = wm.getDefaultDisplay(); Point size = new Point(); display.getSize(size); int width = size.x; int height = size.y; //imageFile is a string to the image location. Bitmap bm = BitmapFactory.decodeFile(imagefile); Bitmap scaledBitmap = Bitmap.createScaledBitmap(bm, width, height, true); </code></pre> <p>When the image is downscaled I add it to the viewpager in a arrayList which works perfectly with only a few images. But now I need to load in 50 images, how am I supposed to do this? I'm getting outOfMemory errors, even after I downscaled the images.</p> <p>The images are added with this code (to the ViewPager):</p> <pre><code> @Override public Object instantiateItem(ViewGroup container, int position) { ImageView imageView = new ImageView(context); //int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium); //imageView.setPadding(padding, padding, padding, padding); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); //imageView.setImageResource(pages.get(position)); imageView.setImageBitmap(pages.get(position)); ((ViewPager) container).addView(imageView, 0); return imageView; } </code></pre> <p>I hope to get a good suggestion. I was thinking myself of loading only a few images and adding them dynamicly, but I don't know how I can destroy loaded images once I don't need them anymore. I'm open to any suggestions!</p>
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