android - How to set OnPageChangeListener for Multiple ViewPagers -

i using loop define viewpagers:

linearlayout llmain; pageradapter[] padapter = new pageradapter[20]; viewpager[] pager = new viewpager[20];     for(int i=0;i<20;i++){     padapter[i] = new awesomepageradapter();     pager[i] = new viewpager(this);     pager[i].setadapter(padapter[i]);     ifinawesomepager[i].setonpagechangelistener(new onpagechangelistener() {         @override         public void onpagescrollstatechanged(int arg0) {}         @override         public void onpagescrolled(int arg0, float arg1, int arg2) {}          @override         public void onpageselected(int arg0) {             //which 1 of viewpagers has been changed here?         }     });     llmain.addview(pager[i]); } 

how know 1 of viewpagers changed in onpagechangelistener() ?

thanks!

i using loop define viewpagers

that unusual pattern.

how know 1 of viewpagers changed in onpagechangelistener() ?

create class implements onpagechangelistener. have class take viewpager in constructor , hold onto value in data member. use class instead of current anonymous inner class attaching listener pager.