Develop Reference

BroadcastReceiver not being called by Alarm(Manager)

Can you spot any reason as to why BroadcastReceiver is not being called when the Alarm goes off? If I have the alarm launch an explicit intent, it works just fine and my activity opens. If I set the intent to open my BroadCastReceiver then nothing happens so I think there may be something wrong with my receiver class or the Manifest. Here's how I setup the alarm:
Intent intent = new Intent(this, AlarmBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 324, intent, PendingIntent.FLAG_UPDATE_CURRENT);
mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
mAlarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);
Here's my broadcast receiver:
public class AlarmBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.e("MJH", "Alarm called...");
Toast.makeText(context, "Alarm...", Toast.LENGTH_LONG).show();
}
}
And here is my manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest package="mjh.com.apod"
xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Required to act as a custom watch face. -->
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.SET_WALLPAPER"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:name="android.support.multidex.MultiDexApplication"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<receiver
android:name=".AlarmBroadcastReceiver"
android:enabled="true"
android:exported="true"
android:process=":remote">
</receiver>
</application>
Thank you so very much for your time.

I think you should be using PendingIntent.getBroadcast( instead of PendingIntent.getActivity(.

I had to call getBroadcast rather than getActivity to create the PendingIntent. That fixed it.

Android - alarm notification issue

I'm trying to configure an alarm notification in Android and unfortunately no alarm is generated.
Here is the creation of the alarm:
myDate = new SimpleDateFormat("dd/MM/yyyy HH:mm").parse(time_Date_str);
t.setDueDate(myDate);
t.setHasDate(true);
Intent alarmNotificationIntent = new Intent(this, ReminderNotification.class);
alarmNotificationIntent.putExtra("task", t);
PendingIntent pendingIntent =
PendingIntent.getBroadcast(this, (int) task_id, alarmNotificationIntent, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(t.getDueDate().getTime());
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
In addition I've created:
NotificationReceiver
import android.app.Activity;
import android.os.Bundle;
public class NotificationReceiver extends Activity
{
#Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
}
ReminderNotification
import android.content.Context;
import android.content.Intent;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
public class ReminderNotification extends BroadcastReceiver
{
public ReminderNotification()
{
// TODO Auto-generated constructor stub
}
#Override
public void onReceive(Context context, Intent intent) {
// The PendingIntent to launch our activity if the user selects this notification
Task task = (Task)intent.getSerializableExtra("task");
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 0);
// Set the info for the views that show in the notification panel.
Intent snzInt = new Intent(context, SnoozeReminderReceiver.class);
snzInt.putExtra("task", task);
PendingIntent snoozeIntent = PendingIntent.getBroadcast(context, 0,snzInt, PendingIntent.FLAG_CANCEL_CURRENT);
Intent doneInt = new Intent(context,DoneActionReceiver.class);
doneInt.putExtra("task", task);
PendingIntent doneIntent = PendingIntent.getBroadcast(context, 0,doneInt, PendingIntent.FLAG_CANCEL_CURRENT);
NotificationManager notificationManager =
(NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
}
}
The manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="il.ac.she.dd.todoli"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
<receiver android:name="ReminderNotification"/>
<receiver android:name="SnoozeReminderReceiver"/>
<receiver android:name="DoneActionReceiver"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:screenOrientation="portrait"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar" />
<activity
android:name=".ListNodeActivity"
android:label="#string/title_activity_list_node"
android:parentActivityName=".MainActivity"
android:theme="#style/AppTheme.NoActionBar">
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="il.ac.shenkar.david.todolistex2.MainActivity" />
</activity>
<activity
android:name=".Signup_Activity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar"></activity>
<activity
android:name=".create_team"
android:label="Create new task team"
android:theme="#style/AppTheme.NoActionBar" />
<activity
android:name=".invite_member"
android:label="Invite Members Your Team"
android:theme="#style/AppTheme.NoActionBar" />
<activity
android:name=".Login_activity"
android:label="Login to Wiggle"
android:theme="#style/AppTheme.NoActionBar" />
<activity
android:name=".SplashScreen"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".EditTaskActivity"
android:label="Edit Task"
android:theme="#style/AppTheme.NoActionBar"></activity>
</application>
I have a feeling that I'm missing something very small but cannot find the issue.
Please let me know what I'm doing wrong.
Thanks in advance.

you have to first build notification and then notify it...
NotificationManager _manager =(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
Notification notification = new Notification.Builder(this)
.setContentTitle("New")
.setContentText("hello")
.setSmallIcon(R.drawable.ic_launcher)
.setContentIntent(pintent)
.build();
notification.vibrate=new long[]{100,250,100,500};
_manager.notify(notification_id, notification);
You can find a complete example of Alarm and Notification in my this GitHub Repo

Scheduling alarm every 2 minutes android

In my activity class
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AlarmManager alarmManager=(AlarmManager) getSystemService(ALARM_SERVICE);
Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,System.currentTimeMillis(),2000, pendingIntent);
}
And My onrecieve function in alarmreciever class
#Override
public void onReceive(Context context, Intent intent)
{
//get and send location information
System.out.println("fired");
}
I am using nexus 4, kitkat version. I don't see any onreceive function fired every 2 minutes.nthg is happening...
any help? thank you
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.alarmexample"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="20" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<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>
<receiver
android:name="com.example.AlarmExample"
android:exported="false" >
</receiver>
</application>
</manifest>
I just put my manifest as well. ................................................

In your setRepeating function, you should use SystemClock.elapsedRealTime() for ELAPSED_REALTIME_WAKEUP.
Also, you need to change 2000 to 2*60*1000 to specify your interval time.
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime(),
2*60*1000,
pendingIntent);
Hope this helps.
Reference: ELAPSED_REALTIME_WAKEUP
EDIT:
In your manifest file, there is a typo in your receiver name.
Change ".AlarmReciever" to ".AlarmReceiver".
<receiver
android:name=".AlarmReceiver"
android:exported="true" >
</receiver>

in your code you set the alarm this way
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
System.currentTimeMillis(),
2000,
pendingIntent);
the interval time is wrong to run every two minutes you should write:
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
0,
1000 * 60 * 2,
pendingIntent);
EDIT
for your pending intent set flag PendingIntent.FLAG_UPDATE_CURRENT and see if it changes anything.
PendingIntent alarmIntent = PendingIntent.getBroadcast(context,
0,
intent,
PendingIntent.FLAG_UPDATE_CURRENT);

Alarmservice not working

In my application I need to run some code every midnight. This is the first time I am working on alarm service and Searched the internet for some snippets and examples.
Below is my code and its not working as expected, please help my pointing out my mistake:
SET A REPEATING ALARM
private static void initiateMidnightAlarm(Context context, AlarmManager alarmManager) {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
PendingIntent midnightIntent = PendingIntent.getService(context, 0,
new Intent("com.alarms.MidnightProcess"), 0);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, midnightIntent);
}
DECLARE THE RECEIVER IN THE MANIFEST:
<receiver
android:name=".receivers.MidnightProcessReceiver"
android:enabled="true"
android:exported="false">
<intent-filter>
<action android:name="com.alarms.MidnightProcess"/>
</intent-filter>
</receiver>
RECEIVER CODE:
public class MidnightProcessReceiver extends BroadcastReceiver {
public MidnightProcessReceiver() {
}
#Override
public void onReceive(Context context, Intent intent) {
processMidnightLogic(context);
}
public static void processMidnightLogic(Context context) {
Toast.makeText(context,"MidnightProcessReceiver",Toast.LENGTH_LONG).show();
}
}
UPDATE
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.appname">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"/>
<uses-permission android:name="android.permission.GET_TASKS"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<permission
android:name="com.appname.permission.C2D_MESSAGE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.appname.permission.C2D_MESSAGE"/>
<application
android:name=".BaseApplication"
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity
.
.
..
..
</activity>
<receiver
android:name=".receivers.MidnightProcessReceiver"
android:enabled="true">
<intent-filter>
<action android:name="com.alarms.MidnightProcess"/>
</intent-filter>
</receiver>
<receiver
android:name=".receivers.OnBootReceiver"
android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
</application>
</manifest>
Please help!
Thanks in advance.

Since you need to fire an implicit broadcast, rather than start a Service, you're retrieving the wrong type of PendingIntent. Change:
PendingIntent midnightIntent = PendingIntent.getService(context, 0,
new Intent("com.alarms.MidnightProcess"), 0);
to:
PendingIntent midnightIntent = PendingIntent.getBroadcast(context, 0,
new Intent("com.alarms.MidnightProcess"), 0);

Launching an intent from BroadcastReceiver?

Hi this is my first question on stackoverflow and I'm a beginner on Android programming. I've looked through numerous webpages but can't seem to find my solution. What I'm trying to do is launch a new activity when a button is pressed after 5 seconds with a BroadcastReceiver. This activity will have a new UI with graphics and sounds (eventually). I got the BroadcastReceiver to work but the program crashes when it tries to launch the new intent. What am I doing wrong?
The method in my MainActivity class:
public void setAlarm(){
Intent intent = new Intent(MainActivity.this, MyBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() + 5 * 1000, pendingIntent);
}
My BroadcastReceiver class:
public class MyBroadcastReceiver extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent){
Intent intent1 = new Intent(context, ShakeActivity.class);
context.startActivity(intent1);
Toast.makeText(context, "Broadcast works", Toast.LENGTH_LONG).show();
}
}
Manifest file:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.shakecounter"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.shakecounter.MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.shakecounter.ShakeActivity"
android:label="#string/title_activity_shake" >
</activity>
<receiver android:name="com.example.shakecounter.MyBroadcastReceiver">
</receiver>
</application>
</manifest>

Intent intent1 = new Intent(context, ShakeActivity.class);
intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent1);

Try this one.
Intent iAlarm = new Intent( mcontext1, Alertdialogclass.class );
iAlarm.addFlags(Intent.FLAG_FROM_BACKGROUND);
iAlarm.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mcontext1.startActivity(iAlarm);

You have to put the flag FLAG_ACTIVITY_NEW_TASK when You are starting from inside a Receiver:
Intent intent1 = new Intent(context, ShakeActivity.class);
intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent1);
If there is another problem, You should post the logcat.