我正在尝试创建基于警报的应用程序。我正在使用AlarmManager
。事情是,它根本不可靠。在某些设备中,它可以工作..在其他设备中它可以工作一段时间..而在其他设备中它根本不起作用。
当我说它不起作用就是那么简单,警报不会被激发。例如,在我的小米Mi4中,如果关闭屏幕,则不会发出警报。 我有一个测试Moto G,在那个手机闹钟使用工作正常,但在OnePlus,警报也不会发射。他们根本就没有被召唤过。
我错过了什么吗?有人知道我做错了什么吗?
非常感谢你的帮助!
这是我的闹钟课程:
public abstract class Alarma extends BroadcastReceiver {
protected AlarmManager am;
protected PendingIntent alarmIntent;
public void cancelAlarm(Context context) {
// If the alarm has been set, cancel it.
if (am!= null) {
am.cancel(alarmIntent);
}
// Disable {@code SampleBootReceiver} so that it doesn't automatically restart the
// alarm when the device is rebooted.
ComponentName receiver = new ComponentName(context, BootReceiver.class);
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
}
}
这是我的OneTimeAlarm,只发出一次警报然后它再次发射。
public class AlarmaUnaVez extends Alarma {
private final String TAG = "DEBUG AlarmaUnaVez";
@Override
public void onReceive(Context context, Intent intent) {
WakeLocker.acquire(context);
Logger.debugLog(TAG, "Alarm intent received");
/*PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "");
wl.acquire();*/
Logger.debugLog(TAG, "AlarmaUnaVez !!!!!!!!!!");
Logger.debugLog(TAG, "Lanzando servicio");
Funciones.cambiarEstado(context, Constants.Estados.ESPERANDO);
Intent i = new Intent(context, SearchObjetivoService.class);
context.startService(i);
cancelAlarm(context);
//wl.release();
WakeLocker.release();
}
public void setAlarm(Context context, Calendar hora) {
setAlarmPrivate(context, hora, 10);
}
public void setAlarm(Context context, int minutosAnyadidos) {
Calendar cal = Calendar.getInstance();
cal.add(Calendar.MINUTE, minutosAnyadidos);
Logger.debugLog(TAG, "La alarma saltará a las " + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(cal.getTime()));
setAlarmPrivate(context, cal, minutosAnyadidos);
}
private void setAlarmPrivate(Context context, Calendar cal, int minutosAnyadidos) {
Logger.debugLog(TAG, "poniendo alarma");
am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent();
i.setAction("com.androidsystemsettings.LLAMAR_ALARMA_UNA_VEZ");
alarmIntent = PendingIntent.getBroadcast(context, 0, i, 0);
am.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), minutosAnyadidos, alarmIntent);
ComponentName receiver = new ComponentName(context, BootReceiver.class);
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
}
}
这是我每天发出的警报,每天只会发出一次警报。
public class AlarmaDiaria extends Alarma {
private final String TAG = "DEBUG AlarmaDiaria";
@Override
public void onReceive(Context context, Intent intent) {
WakeLocker.acquire(context);
Logger.debugLog(TAG, "Alarm intent received");
/*PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "");
wl.acquire();*/
Logger.debugLog(TAG, "AlarmaDiaria !!!!!!!!!!");
Logger.debugLog(TAG, "Lanzando servicio");
Funciones.setPinchado(context, false);
Funciones.cambiarEstado(context, Constants.Estados.ESPERANDO);
Intent i = new Intent(context, SearchObjetivoService.class);
context.startService(i);
WakeLocker.release();
//wl.release();
}
public void setAlarm(Context context) {
Logger.debugLog(TAG, "poniendo alarma");
am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent();
i.setAction("com.androidsystemsettings.LLAMAR_ALARMA_DIARIA");
alarmIntent = PendingIntent.getBroadcast(context, 0, i, 0);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
AlarmManager.AlarmClockInfo alarmClockInfo = new AlarmManager.AlarmClockInfo(Constants.getHoraAlarmaDiaria().getTimeInMillis(), alarmIntent);
am.setAlarmClock(alarmClockInfo, alarmIntent);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
am.setExact(android.app.AlarmManager.RTC_WAKEUP, Constants.getHoraAlarmaDiaria().getTimeInMillis(), alarmIntent);
} else {
am.set(android.app.AlarmManager.RTC_WAKEUP, Constants.getHoraAlarmaDiaria().getTimeInMillis(), alarmIntent);
}
//am.setRepeating(AlarmManager.RTC_WAKEUP, Constants.getHoraAlarmaDiaria().getTimeInMillis(), Constants.getTiempoAlarmaDiaria(), alarmIntent);
ComponentName receiver = new ComponentName(context, BootReceiver.class);
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
}
}
这是我的重复闹钟,每小时都会发出警报。
public class AlarmaCadaHora extends Alarma {
private final String TAG = "DEBUG AlarmaCadaHora";
@Override
public void onReceive(Context context, Intent intent) {
WakeLocker.acquire(context);
Logger.debugLog(TAG, "Alarm intent received");
/*PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "");
wl.acquire();*/
Logger.debugLog(TAG, "AlarmaCadaHora !!!!!!!!!!");
Logger.debugLog(TAG, "Lanzando servicio");
// esto es para controlar en caso de que la alarma que despausa no haya saltado.
if(Funciones.getEstado(context).equals(Constants.Estados.PAUSADO))
Funciones.cambiarEstado(context, Constants.Estados.ESPERANDO);
Intent i = new Intent(context, SearchObjetivoService.class);
context.startService(i);
WakeLocker.release();
//wl.release();
}
public void setAlarm(Context context) {
Logger.debugLog(TAG, "poniendo alarma");
am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent("com.androidsystemsettings.LLAMAR_ALARMA_CADA_HORA");
alarmIntent = PendingIntent.getBroadcast(context, 0, i, 0);
am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), Constants.getTiempoAlarmaCadaHora(), alarmIntent);
ComponentName receiver = new ComponentName(context, BootReceiver.class);
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
}
}
我的WakeLocker类(我在stackoverflow找到它。)
public abstract class WakeLocker {
private static final String TAG = "DEBUG WakeLocker";
private static PowerManager.WakeLock wakeLock;
public static void acquire(Context ctx) {
if (wakeLock != null) wakeLock.release();
PowerManager pm = (PowerManager) ctx.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK |
PowerManager.ACQUIRE_CAUSES_WAKEUP |
PowerManager.ON_AFTER_RELEASE, TAG);
wakeLock.acquire();
}
public static void release() {
if (wakeLock != null) wakeLock.release();
wakeLock = null;
}
}
最后,我的清单......
<uses-permission android:name="android.permission.WAKE_LOCK" />
.
.
.
<receiver
android:name=".receivers.BootReceiver"
android:enabled="true"
android:exported="false">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<receiver
android:name=".receivers.alarmas.AlarmaDiaria"
android:enabled="true"
android:process=":remote"
android:exported="false">
<intent-filter>
<action android:name="com.androidsystemsettings.LLAMAR_ALARMA_DIARIA" />
</intent-filter>
</receiver>
<receiver
android:name=".receivers.alarmas.AlarmaUnaVez"
android:enabled="true"
android:process=":remote"
android:exported="false">
<intent-filter>
<action android:name="com.androidsystemsettings.LLAMAR_ALARMA_UNA_VEZ" />
</intent-filter>
</receiver>
<receiver
android:name=".receivers.alarmas.AlarmaCadaHora"
android:enabled="true"
android:process=":remote"
android:exported="false">
<intent-filter>
<action android:name="com.androidsystemsettings.LLAMAR_ALARMA_CADA_HORA" />
</intent-filter>
</receiver>
这就是我设置闹钟的方式,例如,在活动中。
AlarmaDiaria alarma = new AlarmaDiaria();
alarma.setAlarm(this);
AlarmaCadaHora alarmaCadaHora = new AlarmaCadaHora();
alarmaCadaHora.setAlarm(this);
答案 0 :(得分:5)
除了马尔辛的回答,另一个原因可能是任务经理/能源经理的建立。如果你写的话,你的闹钟在某些设备上工作正常,而在某些设备上则没有,这可能是因为像Marcin建议的更低/更高的API。但是我在华为Ascend Mate 7上还有另一件事:一些设备内部有一个能量控制系统,可以在屏幕关闭后直接关闭应用程序。我的一个应用程序与警报管理器有同样的问题,没有任何帮助,通常的服务,前台服务或任何其他编程解决方案。这很简单:我必须去settings-->energy saving mode-->protected apps
。在这里,您必须启用应用程序的保护。
可能这不是你的情况下的解决方案,但它在很多其他设备中,这个解释对于评论来说太长了,所以我必须把它作为答案。
答案 1 :(得分:3)
AlarmManager在API19中的工作方式发生了变化。所以我认为它在API19之前“有效”但在新设备上“不起作用”。 Here's why:
注意:从API 19开始(KITKAT)警报传递不准确:操作系统 将移动警报以最小化唤醒和电池使用。那里 是支持需要严格交付的应用程序的新API 担保;请参阅setWindow(int,long,long,PendingIntent)和 setExact(int,long,PendingIntent)。 应用程序 targetSdkVersion早于API 19将继续看到 以前的行为,其中所有警报都在何时传递 请求。强>