我对alarmmanager有一个小问题,但我找不到适合我的代码的答案。
我的问题很简单。我有一个设置为未来的警报列表。当我的应用运行时,我可以收到通知。
但是当我关闭我的应用时,它不会向我发送通知,如果我再次运行我的应用,可以在通知中心中看到过去的通知。
这是我的代码。在主活动中.java我使用这种方法,它可以获取人员列表并设置每个人的警报。我在onCreate()中运行此方法
private void createScheduledNotification(List<Person> people)
{
for(int i = 0; i<people.size();i++) {
// Get new calendar object
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.MONTH, people.get(i).getMonth());
calendar.set(Calendar.DAY_OF_MONTH, people.get(i).getDay());
calendar.set(Calendar.YEAR, Calendar.getInstance().get(Calendar.YEAR));
calendar.set(Calendar.HOUR_OF_DAY, people.get(i).getHour());
calendar.set(Calendar.MINUTE, people.get(i).getMinute());
calendar.set(Calendar.SECOND, 0);
// Retrieve alarm manager from the system
AlarmManager alarmManager = (AlarmManager) getApplicationContext().getSystemService(getBaseContext().ALARM_SERVICE);
// Every scheduled intent needs a different ID, else it is just executed once
int id = (int) System.currentTimeMillis();
// Prepare the intent which should be launched at the date
Intent intent = new Intent(this, TimeAlarm.class);
intent.putExtra("person", people.get(i));
// Prepare the pending intent
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), id, intent, PendingIntent.FLAG_UPDATE_CURRENT);
// Register the alert in the system. You have the option to define if the device has to wake up on the alert or not
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
}
}
我有一个TimeAlarm类,它扩展了BroadcastReciever。
public class TimeAlarm extends BroadcastReceiver {
private Person person;
@Override
public void onReceive(Context context, Intent paramIntent) {
Bundle bundle = paramIntent.getExtras();
person = (Person) bundle.getSerializable("person");
// Request the notification manager
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// Create a new intent which will be fired if you click on the notification
Intent intent = new Intent("android.intent.action.VIEW");
// Attach the intent to a pending intent
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
// Create the notification
Notification notification = new Notification(R.drawable.logo24px, "Never Forget", System.currentTimeMillis());
//
notification.setLatestEventInfo(context, "It's " + person.getName() + " " + person.getSname() + "'s Birthday!", "Celebrate his/her birthday! ",pendingIntent);
// Fire the notification
notificationManager.notify(1, notification);
}
}
此外,我还将这些行添加到AndroidManifest中.xml
<receiver android:name=".TimeAlarm" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
当应用程序运行时,它工作正常,但是当我在活动应用程序页面中关闭我的应用程序时,它不会发送任何通知。
在创建意图时尝试使用它
Bundle extras = new Bundle();
extras.putSerializable("person", people.get(i));
intent.putExtras(extras);
在你的BroadcastReciver中,检查该动作是否是启动完成的操作(它也可能是你的警报)。
@Override
public void onReceive(Context context, Intent paramIntent) {
//CHECK IF IS BOOT COPLETED
if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) {
/* Setting the alarm here Alarm are automatically cleaned on phone shutdown*/}
else{
Bundle bundle = paramIntent.getExtras();
person = (Person) bundle.getSerializable("person");
// Request the notification manager
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// Create a new intent which will be fired if you click on the notification
Intent intent = new Intent("android.intent.action.VIEW");
// Attach the intent to a pending intent
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
// Create the notification
Notification notification = new Notification(R.drawable.logo24px, "Never Forget", System.currentTimeMillis());
//
notification.setLatestEventInfo(context, "It's " + person.getName() + " " + person.getSname() + "'s Birthday!", "Celebrate his/her birthday! ",pendingIntent);
// Fire the notification
notificationManager.notify(1, notification);}
}
}
还要检查这个
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), id, intent, PendingIntent.FLAG_UPDATE_CURRENT);
因为您似乎在不断更新相同的意图,这是您想要的吗?
编辑:
对不起,我不记得插入它,你的 reciever 声明 sholuld 是这样的。
<receiver android:name=".TimeAlarm"
android:process=":remote"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>