i'm building festival app, can reminders specific concerts. don't have idea how this, hope can me out. made switches , layout. need switches activate alarms.
here of code:
package com.example.kjart.borkmusik; 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.webkit.websettings; import android.webkit.webview; import android.widget.button; public class mainactivity extends actionbaractivity { @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); webview mywebview = (webview) findviewbyid(r.id.webview); mywebview.loadurl("http://www.borkhavnmusikfestival.dk/"); websettings websettings = mywebview.getsettings(); websettings.setjavascriptenabled(true); } @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){ switch(item.getitemid()){ case r.id.action_settings: intent intent = new intent(); intent launchnewintent = new intent(mainactivity.this,pamindelse.class); startactivityforresult(launchnewintent, 0); return true; } return false; } }
package com.example.kjart.borkmusik; import android.support.v7.app.actionbaractivity; import android.os.bundle; import android.view.menu; import android.view.menuitem; public class pamindelse extends actionbaractivity { @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_pamindelse); } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.menu_pamindelse, 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.layout.activity_pamindelse) { return true; } return super.onoptionsitemselected(item); } }
package com.example.kjart.borkmusik; import android.support.v7.app.actionbaractivity; import android.os.bundle; import android.view.menu; import android.view.menuitem; public class pamindelse extends actionbaractivity { @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_pamindelse); } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.menu_pamindelse, 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.layout.activity_pamindelse) { return true; } return super.onoptionsitemselected(item); } }
you reminders using broadcastsreceivers, , can receive push notification when concert start.
// alarmreceiver called when user need reminded. // , using putextra can save concert data, e.g. concert name. intent intent = new intent(mcontext, alarmreceiver.class); string[] texts = new string[4]; texts[0] = concert_name; intent.putextra("alarm_message", texts); pendingintent sender = pendingintent.getbroadcast(mcontext, concert_id, intent, 0); // create alarm manager alarmmanager = (alarmmanager) mcontext.getsystemservice(context.alarm_service); am.set(alarmmanager.rtc_wakeup, concert_time_in_millis, sender); alarmreceiver.class
public class alarmreceiver extends broadcastreceiver { @override public void onreceive(context context, intent intent) { // retrieve concert data, e.g. concert title string[] message = intent.getstringarrayextra("alarm_message"); charsequence concerttitle = message[0]; charsequence messagetext = "the concert starting"; long when = system.currenttimemillis(); notificationmanager mnotificationmanager = (notificationmanager) context .getsystemservice(context.notification_service); notification notification = new notification(r.drawable.ic_launcher, concerttitle, when); notification.flags |= notification.flag_auto_cancel; // open activity open clicked on push notification intent = new intent(context, mainactivity.class); i.setflags(intent.flag_activity_new_task); pendingintent pendingintent = pendingintent.getactivity(context, (int) when, i, pendingintent.flag_one_shot); notification.setlatesteventinfo(context, concerttitle, messagetext, pendingintent); mnotificationmanager.notify(1, notification); } } 
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