Android RecyclerView: How to avoid scroll interruption(scroll twice) when scroll state is not IDLE? -

-

how avoid recyclerview being scrolled when scrollstate not idle ?

i have tried ideas overriding canscrollhorizontally() in linearlayoutmanager , return false when scrollstate != idle or same concept applied dispatchtouchevent() in activity, stuck screen forever.

i tried asyntask method while loop made never escape doinbackground , go onpostexercute:

 @override         public void onscrollstatechanged(recyclerview recyclerview, int newstate) {             super.onscrollstatechanged(recyclerview, newstate);              if (previousscrollstate != 0) {                  new asynctask<void, void, boolean>() {                      @override                     protected boolean doinbackground(void... params) {                          while (previousscrollstate != 0) {                             log.i(tag, "doinbackground " + previousscrollstate);                         }                          return true;                     }                      @override                     protected void onpreexecute() {                         super.onpreexecute();                         reclist.settouchenabled(false);                     }                      @override                     protected void onpostexecute(boolean avoid) {                         super.onpostexecute(avoid);                         reclist.settouchenabled(true);                         log.i(tag, "onpostexecute " + previousscrollstate);                     }                 }.execute();              }              previousscrollstate = newstate; }

my purpose avoid user skip page(scroll twice or more @ same time). how can achieve it? sharing.

not sure if bad solution before better answer come out:

 @override         public void onscrollstatechanged(recyclerview recyclerview, int newstate) {             super.onscrollstatechanged(recyclerview, newstate);              if (previousscrollstate != recyclerview.scroll_state_idle) {                  if (asynccheckscrollstate == null || asynccheckscrollstate.iscancelled()) {                      asynccheckscrollstate = new asynccheckscrollstate();                     asynccheckscrollstate.execute();                  }             }          // ...          previousscrollstate = newstate; }

and:

public class asynccheckscrollstate extends asynctask<void, void, void> {      @override     protected void onpreexecute() {         super.onpreexecute();         reclist.settouchenabled(false);     }      @override     protected void doinbackground(void... params) {          try {              while (previousscrollstate != 0) {                 if (iscancelled()) {                     log.i(tag, "canceled ");                     break;                 }             }          } catch (exception e) {         } {             this.cancel(true);         }          return null;     }      @override     protected void oncancelled() {         super.oncancelled();         reclist.settouchenabled(true);     } }

Comments

Post a Comment

Popular posts from this blog

Hatching array of circles in AutoCAD using c# -

-
i beginner in autocad plugins .i have created array of circle using following code. now, have hatch circles in array .how that??how hatch circles @ once? moreover, how can return hatch method , use hatch objects.sorry language.thanks in advance. [assembly: commandclass(typeof(beamsection.class1))] namespace beamsection { public class class1 { //class1 obj = new class1(); [commandmethod("beamatsupport")] public void addlightweightpolyline() { // current document , database document acdoc = application.documentmanager.mdiactivedocument; database accurdb = acdoc.database; promptpointresult ppr = acdoc.editor.getpoint("\nselect starting point "); var ucs = acdoc.editor.currentusercoordinatesystem; point3d startingpt = ppr.value.transformby(ucs); list<double> radius = new list<double>(); radius.add(0.5);
Read more

ios - UITEXTFIELD InputView Uipicker not working in swift -

-
hello trying pop uipickerview view programmatically when user clicks on textfield. have tried doesn't doing anything. isn't working. nothing happening when click textfield class userprofiletableviewcontroller: uitableviewcontroller,uitextfielddelegate,uipickerviewdelegate,uipickerviewdatasource { var itempicker: uipickerview! = uipickerview() @iboutlet weak var gendertxtfield: uitextfield! var gender = ["male","female"] override func viewdidload() { super.viewdidload() gendertxtfield.delegate = self itempicker!.delegate = self itempicker!.datasource = self itempicker!.backgroundcolor = uicolor.blackcolor() self.gendertxtfield.inputview = itempicker } func numberofcomponentsinpickerview(pickerview: uipickerview) -> int{ return 1 } // returns # of rows in each component.. func pickerview(pickerview: uipickerview, numberofrowsincomponent component:
Read more

Python Pig Latin Translator -

-
so have been working on @ codecademy.com while trying learn python. don't know if blind , can't see why won't work or what. here's code won't let me use. function print variable if had typed in , print "empty" if didn't type anything. print "welcome english pig latin translator!" original = raw_input("what's name?") if len(original) > 0 print original else print "empty" if len(original) > 0 else the above lines contains syntax errors. try: if len(original) > 0: else: note added colons, ( : ).
Read more