报警管理器经过一段时间不工作 [英] Alarm manager don't work after some time
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问题描述
这是我的code。它工作正常,但一段时间后(约1小时),这是行不通的。怎么了?先谢谢了。
<使用-权限的Android:名称=android.permission.READ_PHONE_STATE>< /使用-许可>
公共类报警扩展的BroadcastReceiver
{
@覆盖
公共无效的onReceive(上下文的背景下,意图意图)
{
Toast.makeText(上下文,报警!!!!!!!!!!!!!,Toast.LENGTH_LONG).show();
}
公共无效SetAlarm(上下文的背景下)
{
AlarmManager AM =(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
意图I =新的意图(背景下,Alarm.class);
PendingIntent圆周率= PendingIntent.getBroadcast(上下文,0,I,0);
am.setRepeating(AlarmManager.RTC_WAKEUP,SystemClock.elapsedRealtime(),1000 * 60 * 10,PI);
}
公共无效StopAlarm(上下文的背景下)
{
意向意图=新的意图(背景下,Alarm.class);
PendingIntent发件人= PendingIntent.getBroadcast(上下文,0,意图,0);
AlarmManager alarmManager =(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(寄件人);
}
}
解决方案
这是工作code。它唤醒CPU每10分钟一班,并显示通知。
加入的Manifest.xml:
...
<使用-权限的Android:名称=android.permission.WAKE_LOCK>< /使用-许可>
...
<接收器安卓程序=:遥控机器人:NAME =报警>< /接收器>
...
code:
公共类报警扩展的BroadcastReceiver
{
@覆盖
公共无效的onReceive(上下文的背景下,意图意图)
{
电源管理器PM =(电源管理器)context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock WL = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,您的标记);
wl.acquire();
//这里把你的code。
Toast.makeText(背景下,报警!!!!!!!!!!,Toast.LENGTH_LONG).show(); // 例如
wl.release();
}
公共无效SetAlarm(上下文的背景下)
{
AlarmManager AM =(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
意图I =新的意图(背景下,Alarm.class);
PendingIntent圆周率= PendingIntent.getBroadcast(上下文,0,I,0);
am.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis的(),1000 * 60 * 10,PI); //毫秒*秒*分钟
}
公共无效CancelAlarm(上下文的背景下)
{
意向意图=新的意图(背景下,Alarm.class);
PendingIntent发件人= PendingIntent.getBroadcast(上下文,0,意图,0);
AlarmManager alarmManager =(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(寄件人);
}
}
This is my code. It works correctly, but after some time (about 1 hour) it doesn't work. Whats wrong? Thanks in advance.
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
public class Alarm extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Toast.makeText(context, "Alarm !!!!!!!!!!!!!", Toast.LENGTH_LONG).show();
}
public void SetAlarm(Context context)
{
AlarmManager am=(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, Alarm.class);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);
am.setRepeating(AlarmManager.RTC_WAKEUP, SystemClock.elapsedRealtime(), 1000 * 60 * 10, pi);
}
public void StopAlarm(Context context)
{
Intent intent = new Intent(context, Alarm.class);
PendingIntent sender = PendingIntent.getBroadcast(context, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(sender);
}
}
解决方案
This is working code. It wakes CPU every 10 minutes and shows notification.
Add to Manifest.xml:
...
<uses-permission android:name="android.permission.WAKE_LOCK"></uses-permission>
...
<receiver android:process=":remote" android:name="Alarm"></receiver>
...
Code:
public class Alarm extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "YOUR TAG");
wl.acquire();
// Put here YOUR code.
Toast.makeText(context, "Alarm !!!!!!!!!!", Toast.LENGTH_LONG).show(); // For example
wl.release();
}
public void SetAlarm(Context context)
{
AlarmManager am=(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, Alarm.class);
PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);
am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(), 1000 * 60 * 10, pi); // Millisec * Second * Minute
}
public void CancelAlarm(Context context)
{
Intent intent = new Intent(context, Alarm.class);
PendingIntent sender = PendingIntent.getBroadcast(context, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(sender);
}
}
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