java - Cannot find symbol method - tabbed acivity -


i want create live timer for tabbed activity.

however, error get:

error:(29, 38) error: cannot find symbol method runonunithread()

this code:

package com.example.sci.livetimeanddate;  import android.icu.text.simpledateformat; import android.os.build; import android.support.annotation.nullable; import android.support.annotation.requiresapi; import android.support.v4.app.fragment; import android.os.bundle; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.button; import android.widget.textview; import android.widget.toast;  public class sub_page01 extends fragment {     private static final string tag = "sub_page01";      @nullable     @override     public view oncreateview(layoutinflater inflater, @nullable viewgroup container, @nullable bundle savedinstancestate) {         final view view = inflater.inflate(r.layout.fragment_sub_page01,container,false);          thread t = new thread() {             public void run() {                 try {                     while (!isinterrupted()) {                         thread.sleep(1000);                         getactivity().runonunithread(new runnable() {                             @requiresapi(api = build.version_codes.n)                             public void run() {                                 textview tdate = (textview) view.findviewbyid(r.id.date);                                 long date = system.currenttimemillis();                                 simpledateformat sdf = new simpledateformat("mmm dd yyyy\nhh-mm-ss a");                                 string datestring = sdf.format(date);                                 tdate.settext(datestring);                             }                         });                     }                 } catch (interruptedexception e) {                 }             }         };         t.start();         return view;     } }

i'm not sure problem is.

you have typo in runonunithread. there should runonuithread


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