How to reuse fragments in a viewpager in Android? -

say have viewpager multiple fragments hold bitmaps. use setoffscreenlimit(numberofpagesinviewpager) make sure fragments instantly available @ time (this requirement of app). quite, more fragments have, more memory use because of bitmaps inside fragments , fragments being kept in memory.

now, suppose fragments show same content , therefore hold same bitmaps.

would possible create 1 fragment , reuse in viewpager pages (and hence reducing memory footprint 1 fragment)?

in code thinking this:

public class myadapter extends fragmentpageradapter {  private myfragment mfragment;  public myadapter(fragmentmanager fragmentmanager) {     super(fragmentmanager);      mfragment = myfragment.newinstance(); }  @override public fragment getitem(int position) {     // reuse mfragment pages in viewpager     return mfragment; } }  

this approach not work however, getting type of error:

java.lang.illegalstateexception: can't change tag of fragment myfragment{4259a4d0 id=0x7f0a0074 android:switcher:2131361908:0}: android:switcher:2131361908:0 android:switcher:2131361908:1 

would possible create 1 fragment , reuse in viewpager pages (and hence reducing memory footprint 1 fragment)?

not fragmentpageradapter , fragmentstatepageradapter. , doubt work own custom pageradapter.

if use app has viewpager, notice viewpager animates when swiping, see parts of 2 pages @ 1 time. difficult 1 page. why viewpager requires @ least 3 pages @ times, can handle swipes in either direction.

beyond that, cannot quite understand why users want flip through series of identical pages in viewpager.