Reduce Bit地图 size using Bit地图Factory.Options.inSampleSize

Reduce Bitmap size using BitmapFactory.Options.inSampleSize

In the post "Load ImageView with JPG file in SD Card", the ImageView is loaded with bitmap in full-size. It cost too much resources for a mobile device, and easy to make the app closed unexpectly.

We can generate a shrinked bitmap using?BitmapFactory.Optionswith inSampleSize; such that to reduce the needed resources greatly.