Resize a large bitmap file to scaled output file on Android

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No. I’d love for someone to correct me, but I accepted the load/resize approach you tried as a compromise.

Here are the steps for anyone browsing:

  1. Calculate the maximum possible inSampleSize that still yields an image larger than your target.
  2. Load the image using BitmapFactory.decodeFile(file, options), passing inSampleSize as an option.
  3. Resize to the desired dimensions using Bitmap.createScaledBitmap().

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