how to solve this problem with calendar alarm?
<p>I am trying to make alarm ring when the time of calendar event is reached. I use to set AlertDialog when the alarm time is reached. But event when the application is closed, i need to notify the user through Alert Dialog. I have started the intent to the AlarmReceiver which extends BroadCastReceiver.My code is here in this link.
AlarmReceiver.java: 
<a href="http://pastebin.com/0ch5hjp9" rel="nofollow">http://pastebin.com/0ch5hjp9</a>
Alert.java:
<a href="http://pastebin.com/bJAPAUV2" rel="nofollow">http://pastebin.com/bJAPAUV2</a>
I am not getting alarm since i use to call alertdialog intent.</p>

<p>I am getting following exception when i reach the AlertDialog intent:</p>

<p>android.content.ActivityNotFoundException: Unable to find explicit activity class {com.android.todoapplication/android.todoapplication.Alert}; have you declared this activity in your AndroidManifest.xml?</p>
