java 在 10 分钟内触发活动的简单 AlarmManager 示例
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Simple AlarmManager example for firing an activity in 10 minutes
提问by good_evening
I've found many similar questions to this, but they're too complicated (too much code), at least I think.
我发现了许多与此类似的问题，但它们太复杂了（代码太多），至少我认为。
Can this thing be done in a few code of lines? I want to fire an activity in 10 (let's say) minutes, that's it. Thank you.
这件事可以在几行代码中完成吗？我想在 10（假设）分钟内触发一个活动，就是这样。谢谢你。
回答by vinothp
To Set Alarm for 10 Minutes(let's say) Use this code
设置闹钟 10 分钟（比方说）使用此代码
AlarmManager alarmMgr = (AlarmManager)getSystemService(ALARM_SERVICE);
Intent intent = new Intent(this, ShortTimeEntryReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),10*60*1000, pendingIntent);
To Start Activity
开始活动
public class ShortTimeEntryReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
try {
Bundle bundle = intent.getExtras();
String message = bundle.getString("alarm_message");
// Your activity name
Intent newIntent = new Intent(context, ReminderPopupMessage.class);
newIntent.putExtra("alarm_message", message);
newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(newIntent);
} catch (Exception e) {
e.printStackTrace();
}
}
}
In your Manifest File Add the following
在您的清单文件中添加以下内容
<receiver android:name=".ShortTimeEntryReceiver"
android:enabled="true"
android:process=":remote">
</receiver>
回答by Kuffs
This function I use sets or cancels an alarm depending on the "Set" parameter
我使用的此功能根据“设置”参数设置或取消警报
public static void SetAlarm(Context c, long AlarmTime, int ItemID, String Message, Boolean Set) {
Intent intent = new Intent(c, AlarmReceiver.class);
intent.putExtra("Message", Message);
intent.putExtra("ItemID", ItemID);
PendingIntent sender = PendingIntent.getBroadcast(c, 8192 + ItemID, intent, PendingIntent.FLAG_UPDATE_CURRENT);
// Clear the seconds to 0 for neatness
Calendar ca = Calendar.getInstance();
ca.setTimeInMillis(AlarmTime);
ca.set(Calendar.SECOND, 0);
AlarmTime = ca.getTimeInMillis();
// Get the AlarmManager service
AlarmManager am = (AlarmManager) c.getSystemService(Context.ALARM_SERVICE);
if (Set) {
am.set(AlarmManager.RTC_WAKEUP, AlarmTime, sender);
} else {
am.cancel(sender);
}
}
You would then need a Broadcast Receiver to handle the alarm and do whatever it is you want to do.
然后你需要一个广播接收器来处理警报并做你想做的任何事情。
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
try {
Bundle bundle = intent.getExtras();
String Message = bundle.getString("Message");
int ItemID = bundle.getInt("ItemID");
// Do what you want to do, start an activity etc
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
