android-alarms

问题 I am having trouble to stop the alarm from ringing even after I have pressed the stopAlarm button. I cannot figure out how to get access to the same Ringtone instance and call stop(). This is my start alarm switch in MainActivity java class. public void switchClicked(View view) { if (((Switch) view).isChecked()) { Log.d("MainActivity", "Alarm On"); Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.HOUR_OF_DAY, alarmTimePicker.getHour()); calendar.set(Calendar.MINUTE,

问题 I'm trying to make Android fire a Alarm at a certain time the user specifies to check if the user has posted to the service. However, Android won't fire the intent. AndroidManifest.xml: <receiver android:name="me.kennydude.dailybooth.NoBoothNotify.AlarmReciever" /> <service android:name="me.kennydude.dailybooth.NoBoothNotify.AlarmService"> </service> NoBoothNotify.java function that sets the alarm: public static void settingsChanged(){ Context cntxt = DailyboothApplication.getInstance();

问题 I am new to android. I am making an alarm clock. Its working perfectly until the user clears the app from the RAM. On searching, I found that broadcast receivers don't work if the app is cleared from the RAM. So, what exactly should I do? Will sending the broadcast from a service help? Also if you have a link to a good tutorial to Services in android, pls do share. Also let me know if there is some other way to solve my problem. 回答1: In Xiaomi devices, you just have to add your app to

问题 I have been successfully using the following construct to start an AlarmManager in some of my apps upto Android 5: Intent serviceIntent = new Intent(context, MyService.class); PendingIntent pi = PendingIntent.getService(context, alarmId, serviceIntent, PendingIntent.FLAG_UPDATE_CURRENT); DateTime inMinutes = (new DateTime()).plusMinutes(60); AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); am.set(AlarmManager.RTC_WAKEUP, inMinutes.getMillis(), pi); But since

问题 i have a service getting started by Alarm Manager set to be repeated: AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE); serviceSaveSample = new Intent(RunActivity.this,SaveSampleService.class); alarmSaveSample = PendingIntent.getService(getApplicationContext(), 9988766, serviceSaveSample, PendingIntent.FLAG_CANCEL_CURRENT); alarm.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (secondsToSample*1000) , secondsToSample*1000, alarmSaveSample); my

问题 I whould like to create a alarm (AlarmManager) in Android. The alarm must show the left time until its finish. So the user click on "set alarm at 11 pm" and see in a TextView "alarm in xy hours/minuts/seconds". How can I achieve this? Thanks. 回答1: Try like this Calendar calendar = Calendar.getInstance(); Long preTime = calendar.getTimeInMillis(); // set alarm after 5 minute calendar.add(Calendar.MINUTE, 5); Long postTime = calendar.getTimeInMillis(); Long delay = postTime - preTime;

问题 Assume I set an alarm using the AlarmManager.set(int type, long triggerAtMillis, PendingIntent operation) method for 2pm today and the current time is 1pm. Now, if I change the time on the device to be 3pm (i.e. 3pm today or any day in the future), what should happen to my alarm? Should it trigger? 回答1: No that will not triggered by AlarmManager . So you should listen about time change actions and re-create the alarm. Those actions are Intent.ACTION_TIME_TICK Intent.ACTION_TIMEZONE_CHANGED

问题 My question is I want to verify every two hour that there is new data in the database, for that I create this user interface : <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <EditText android:id="@+id/speedAlert" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ems="10" android:gravity="center" android:hint="km/h" android:inputType=

问题 I need to know if this is possible, and if it is, how I should proceed. I'd like to make an app that will create a repeating alarm within the stock Android Clock App. It should go off at 8am each morning and should only take one button to activate within my app. Thanks in advance 回答1: Try this: public void createAlarm(String message, int hour, int minutes) { Intent intent = new Intent(AlarmClock.ACTION_SET_ALARM) .putExtra(AlarmClock.EXTRA_MESSAGE, message) .putExtra(AlarmClock.EXTRA_HOUR,

问题 i have a timer app, which wakes up the device with system alarms (RTC_WAKEUP) and opens my app. after thousands of successful alarms, it just happend, that the set alarm was not completely successful. it died during onReceive() and did not start my app, nor it fired a system notification. here is the BroadcastReceiver's onReceive() method: public void onReceive(Context context, Intent intent) { Log.i("timer", "timer's end broadcast received at: " + (System.currentTimeMillis() / 1000) ); m