java - I am attempting to store user input in one activity to a listview in another activity. It wont work -
i have been attempting store data listview separate items isn't working. if understands android studio , issue me helpful. think organization in mainactivity.java might why doesn't work. mainactivity.java has listview while newtask.java user inputs data such name of task , due date. have used startactivityforresult() still having issue. please help.
mainactivity.java
package com.example.shaan.todoer; import android.app.activity; import android.content.context; import android.content.intent; import android.support.v7.app.actionbaractivity; import android.os.bundle; import android.view.menu; import android.view.menuitem; import android.view.view; import android.widget.arrayadapter; import android.widget.button; import android.widget.edittext; import android.widget.listview; import android.widget.textview; import java.util.arraylist; import java.util.list; public class mainactivity extends activity { arraylist<string> list = new arraylist<string>(); arrayadapter<string> adapter; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); //things still left do: //prevent overriding of items //activate delete tasks on hard click of items //fit name, date, , priority on 1 line of list //attempt able sort items in listview button firstbutton = (button) findviewbyid(r.id.add_task_group); firstbutton.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { startactivity(new intent(mainactivity.this, calendarviewactivity.class)); } }); } protected void onactivityresult(int requestcode, int resultcode, intent data) { adapter = new arrayadapter<string>(this, android.r.layout.simple_list_item_multiple_choice, list); listview listviewtodo = (listview) findviewbyid(r.id.listviewtodo); listviewtodo.setadapter(adapter); intent = new intent(this, newtask.class); startactivityforresult(i, 1); if(requestcode == 1) { if(resultcode == result_ok) { string str = data.getstringextra("type_task_name"); string str1 = data.getstringextra("text_date"); int seek = data.getintextra("seekbar", 0); adapter.add(str); } adapter.notifydatasetchanged(); } } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.menu_main, menu); return true; } @override public boolean onoptionsitemselected(menuitem item) { // handle action bar item clicks here. action bar // automatically handle clicks on home/up button, long // specify parent activity in androidmanifest.xml. int id = item.getitemid(); //noinspection simplifiableifstatement if (id == r.id.action_settings) { return true; } return super.onoptionsitemselected(item); } } newtask.java
package com.example.shaan.todoer; import java.util.calendar; import android.app.activity; import android.app.datepickerdialog; import android.content.intent; import android.os.bundle; import android.view.view; import android.view.view.onclicklistener; import android.widget.button; import android.widget.datepicker; import android.widget.edittext; import android.widget.listview; import android.widget.seekbar; import android.widget.seekbar.onseekbarchangelistener; import android.widget.textview; import android.widget.toast; public class newtask extends activity implements onclicklistener { button set_date; private int calyear, calmonth, calday; private seekbar slider; private textview sliderlevel; public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_new_task); initialize(); button cancel_new_task = (button) findviewbyid(r.id.cancel_new_task); cancel_new_task.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { startactivity(new intent(newtask.this, mainactivity.class)); } }); sliderlevel.settext("priority level: " + slider.getprogress() + "/" + slider.getmax()); slider.setonclicklistener(this); slider.setonseekbarchangelistener(new onseekbarchangelistener() { int work = 0; @override public void onprogresschanged(seekbar seekbar, int progress, boolean fromuser) { work = progress; toast.maketext(getapplicationcontext(), "priority level changing", toast.length_short); } @override public void onstarttrackingtouch(seekbar seekbar) { toast.maketext(getapplicationcontext(), "started tracking slider", toast.length_short); } @override public void onstoptrackingtouch(seekbar seekbar) { sliderlevel.settext("priority level: " + work + "/" + slider.getmax()); toast.maketext(getapplicationcontext(), "stopped tracking slider", toast.length_short); } }); } private void initialize() { slider = (seekbar) findviewbyid(r.id.seekbar); sliderlevel = (textview) findviewbyid(r.id.textview7); set_date = (button) findviewbyid(r.id.set_date); text_date = (edittext) findviewbyid(r.id.text_date); set_date.setonclicklistener(this); text_date.setonclicklistener(this); create_task = (button) findviewbyid(r.id.create_task); type_task_name = (edittext) findviewbyid(r.id.type_task_name); seekbar = (seekbar) findviewbyid(r.id.seekbar); text_date = (edittext) findviewbyid(r.id.text_date); } button create_task; edittext type_task_name; seekbar seekbar; edittext text_date; @override public void onclick(view v) { if (v == set_date) { final calendar cal = calendar.getinstance(); calyear = cal.get(calendar.year); calmonth = cal.get(calendar.month); calday = cal.get(calendar.day_of_month); datepickerdialog date = new datepickerdialog(this, new datepickerdialog.ondatesetlistener() { @override public void ondateset(datepicker look, int year, int month, int day) { text_date.settext((month + 1) + "/" + (day) + "/" + year); } }, calyear, calmonth, calday); date.show(); } } public void buttonaddclick(view v) { startactivity(new intent(newtask.this, mainactivity.class)); intent = new intent(); i.putextra("type_task_name", type_task_name.gettext().tostring()); i.putextra("text_date", text_date.gettext().tostring()); i.putextra("seekbar", seekbar.getprogress()); setresult(result_ok, i); finish(); } }
you don't need data in onactivityresults because calles when returns activity if activity new in stack can it's bumndle data in oncreate method put follwing code-
newtask.java
public void buttonaddclick(view v) { intent = new intent(newtask.this, mainactivity.class); i.putextra("type_task_name", type_task_name.gettext().tostring()); i.putextra("text_date", text_date.gettext().tostring()); i.putextra("seekbar", seekbar.getprogress()); startactivity(i); } in mainactivity.java
@override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); // data activity called it. bundle data = getintent().getextras(); if (data != null) { string str = data.getstring("type_task_name"); string str1 = data.getstring("text_date"); int value = data.getint("seekbar"); } // whatever want data
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