Android : AlarmManager is not working properly. It is not able to set the alarm -


here code code set alarm. code tried, unfortunately won't set alarm @ all. please me this. alarmmanager way know set alarm. tell me if there other way. have given necessary permissions in manifest also.

  public class nextalarm extends activity {              datepicker pickerdate;             timepicker pickertime;             button buttonsetalarm;             textview info;              final static int rqs_1 = 1; method date picker , time picker              @override             protected void oncreate(bundle savedinstancestate) {                 super.oncreate(savedinstancestate);                 setcontentview(r.layout.activity_next_alarm);                  info = (textview)findviewbyid(r.id.info);                 pickerdate = (datepicker)findviewbyid(r.id.pickerdate);                 pickertime = (timepicker)findviewbyid(r.id.pickertime);                  calendar = calendar.getinstance();                  pickerdate.init(                         now.get(calendar.year),                         now.get(calendar.month),                         now.get(calendar.day_of_month),                         null);                  pickertime.setcurrenthour(now.get(calendar.hour_of_day));                 pickertime.setcurrentminute(now.get(calendar.minute));                  buttonsetalarm = (button)findviewbyid(r.id.setalarm);                 buttonsetalarm.setonclicklistener(new view.onclicklistener(){                      @override                     public void onclick(view arg0) {                         calendar current = calendar.getinstance();                          calendar cal = calendar.getinstance();                         cal.set(pickerdate.getyear(),                                 pickerdate.getmonth(),                                 pickerdate.getdayofmonth(),                                 pickertime.getcurrenthour(),                                 pickertime.getcurrentminute(),                                 00);                          if(cal.compareto(current) <= 0){                             //the set date/time passed                             toast.maketext(getapplicationcontext(),                                     "invalid date/time",                                     toast.length_long).show();                         }else{                             setalarm(cal);                         }                      }});             }              private void setalarm(calendar targetcal){                  info.settext("\n\n***\n"                         + "alarm set@ " + targetcal.gettime() + "\n"                         + "***\n");                  intent intent = new intent(nextalarm.this, alarmreceiver.class);                 pendingintent pendingintent = pendingintent.getbroadcast(nextalarm.this, rqs_1, intent, 0);                 alarmmanager alarmmanager = (alarmmanager)getsystemservice(context.alarm_service);                 alarmmanager.set(alarmmanager.rtc_wakeup, targetcal.gettimeinmillis(), pendingintent);                  finish();             }          }          _________________________________________________________________          receiver class          public class alarmreceiver extends broadcastreceiver {              @override             public void onreceive(context arg0, intent arg1) {                  notificationstatus(arg0); }  private void notificationstatus(context context) {     final notificationmanager mnotificationmanager = (notificationmanager)             context.getsystemservice(context.notification_service);      final int icon = r.drawable.ic_launcher;     final notification notification = new notification(icon, "test", system.currenttimemillis());     final intent notificationintent = new intent(context.getapplicationcontext(), nextalarm.class);     final pendingintent pintent = pendingintent.getactivity(context.getapplicationcontext(), 0, notificationintent, 0);      notification.setlatesteventinfo(context, "ticker", "title", pintent);     mnotificationmanager.notify(1, notification); }          }  manifest: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.ctsprojects.com.alarmapp" >      <uses-permission android:name="android.permission.read_external_storage" />     <uses-permission android:name="android.permission.wake_lock" />     <uses-permission android:name="android.permission.write_external_storage" />     <uses-permission android:name="android.permission.write_settings" />     <uses-permission android:name="android.permission.receive_boot_completed" />       <uses-permission android:name="android.permission.internet"/>     <uses-permission android:name="android.permission.access_network_state" />      <uses-permission android:name="android.permission.camera" />     <uses-permission android:name="com.android.alarm.permission.set_alarm" />      <uses-permission android:name="android.permission.vibrate" />      <application         android:allowbackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/apptheme" >         <activity             android:name=".mainactivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.main" />                  <category android:name="android.intent.category.launcher" />             </intent-filter>         </activity>         <activity             android:name=".songlist"             android:label="@string/title_activity_song_list" >         </activity>         <activity             android:name=".nextalarm"             android:label="@string/title_activity_next_alarm" >         </activity>          <receiver android:name=".alarmreceiver" android:enabled="true" >             <intent-filter>                 <action android:name="android.intent.action.phone_state"></action>             </intent-filter>         </receiver>     </application>  </manifest>

code set alarm alarm manager:

  alarmmanager alarmmanager = (alarmmanager) getbasecontext().getsystemservice(alarm_service);   intent i1 = new intent(this, receivealarmactivity.class);   i1.putextra("key", "value");   pendingintent operation = pendingintent.getactivity(getbasecontext(), 0, i1, pendingintent.flag_one_shot);   if (build.version.sdk_int >= 19){     alarmmanager.setexact(alarmmanager.rtc_wakeup, targetcal.gettimeinmillis(), operation);    }else{     alarmmanager.set(alarmmanager.rtc_wakeup, targetcal.gettimeinmillis(), operation);    }

done


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