android - how to get back to fragment from activity? -


i have 4 fragments in activity c. behaving tabs. have go fragment new activity x. want come fragment activity x fragment.

here main activity

'public class maininterface extends actionbaractivity {

viewpager pager; pagertabstrip tab_strp;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main_interface);     mainpageradapter mapager = new mainpageradapter(getsupportfragmentmanager());     pager = (viewpager) findviewbyid(r.id.pager);      pager.setadapter(mapager);     tab_strp = (pagertabstrip) findviewbyid(r.id.tab_strip);     //tab_strp.settextcolor(color.white);     //tab_strp.settextsize(14,14);      //tab_strp.settabindicatorcolor(color.white);     getsupportactionbar().setbackgrounddrawable(new colordrawable(color.parsecolor("#2196f3")));     getsupportactionbar().settitle("instructor");     getsupportactionbar().setdisplayhomeasupenabled(true);     //getsupportactionbar().sethomebuttonenabled(true); }  @override public boolean onoptionsitemselected(menuitem item) {     switch (item.getitemid()) {         case android.r.id.home:             // app icon in action bar clicked; goto parent activity.             this.finish();             return true;         default:             return super.onoptionsitemselected(item);     } }

} '

here activity
'public class discussions extends fragment implements view.onclicklistener {

imagebutton post; textview dtitle;   @override public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {      view view =inflater.inflate(r.layout.discussions,container,false);     post=(imagebutton)view.findviewbyid(r.id.ibdisc);     post.setonclicklistener(this);      dtitle=(textview)view.findviewbyid(r.id.tvdisctitle);      return view; }  @override public void onclick(view view) {     intent in=new intent(getactivity(),postdiscussion.class);     startactivity(in);  }

}'

enter image description heresave name of fragment in sharedpreferences before navigating new activity , onbackpressed of new activity or when want come same fragment name sharedpreferences , add particular fragment earlier activity


Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more