Android – how to use bitmaps to avoid memory overload?

My application uses bitmaps that display images the second time a user enters a specific activity

Bitmap bm = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory()+"//Pics/"Image.jpg");

I've tried something like

BitmapFactory.Options options = new BitmapFactory.Options();
     options.inTempStorage = new byte[16*1024];

I don't know how to set it. But it doesn't help. Once the user leaves this activity, is there a way to clear the bitmap, etc? thank you

resolvent:

When you use the bitmap to release memory, you call Bitmap.recycle ().