CODEWITHSUNDEEP
javaandroidmemoryimageview
kmell96
kmell96

Reputation: 1465

Android Load Many Images Efficiently

I have a lot of PNG images contained in the various Drawable folders (Drawable-xhdpi, Drawable-mdpi, etc.) They are all relatively small (at most like 10KB) but at one point I need to load about 50 of them onto the screen. When I do this, it causes an OutOfMemoryError. Ideally, I would like to be able to load these images by simply calling setContentView once (the content view has a bunch of ImageViews with their src attribute already set to the corresponding images). That's what I'm doing now, but of course this isn't working because of the memory error. Besides reducing the size of the images, is there any way to prevent the OutOfMemoryError?

Upvotes: 0

Views: 1154

Answers (1)

android.dev
android.dev

Reputation: 26

Avoid loading this number of images all at once, instead you can load them in a GridView as described here.

Use Picasso with GridView for memory efficiency

public View getView(int position, View convertView, ViewGroup container) {
   ImageView imageView;
   if (convertView == null) { // if it's not recycled, initialize some attributes
      imageView = new ImageView(mContext);
      imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
      imageView.setLayoutParams(new GridView.LayoutParams(
      LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
      } else {
         imageView = (ImageView) convertView;
      }
   // Load image into ImageView "using Picasso"         
   Picasso.with(mContext).load(imageResIds[position]).into(imageView);
   return imageView;
}

Upvotes: 1

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