这是我关于SO的第一个问题。我正在制作一个Android应用程序,它将计算自动天数,通过给生日来唤醒警报。每个预定日期我都有一个comman闹钟时间。
c8.add(Calendar.MONTH, 18);
sdf = new SimpleDateFormat("yyyy-dd-MM");
//String output = sdf.format(c.getTime());
Date eighteendtmonth= new Date(c8.getTimeInMillis());
dteighteenmonth = sdf.format(eighteendtmonth);
System.out.println("Eighteen Month date is--->"+dteighteenmonth);
c8.set(Calendar.HOUR_OF_DAY, bhour);
c8.set(Calendar.MINUTE, bminute);
try {
Date date1 = df.parse(dteighteenmonth); //birthdate
Date date2 = df.parse(currentdate); //
if(date1.equals(date2) || date1.after(date2))
{
setAlarm(c8, eighteenmonth, dteighteenmonth, alarmtime, name );
}
} catch (ParseException e) {
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
}
private void setAlarm(Calendar targetCal, String detail, String vdate, String vtime, String childname){
alarmid =(int) System.currentTimeMillis();
System.out.println("vdate is--->"+vdate);
System.out.println("alarm time is--->"+vtime);
System.out.println("Alarm is set----->");
Intent intent = new Intent(getApplicationContext(), AlarmReceiver.class);
intent.setAction("android.intent.action.MAIN");
intent.putExtra("detail", detail);
intent.putExtra("childname", name);
PendingIntent pendingIntent = PendingIntent.getBroadcast(getBaseContext(), alarmid, intent, PendingIntent.FLAG_ONE_SHOT);
AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(), pendingIntent);
}
...广播接收器
public void onReceive(Context context, Intent intent) {
Intent pushIntent = new Intent(context, Childlist.class);
pushIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startService(pushIntent);
Toast.makeText(context,detail,Toast.LENGTH_LONG).show();
的AndroidManifest.xml
<uses-permission android:name='android.permission.WAKE_LOCK'/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<receiver
android:name=".AlarmReceiver"
android:enabled="true"
android:exported="true"
android:label="AlarmReceiver">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<receiver android:name=".AlarmReceiver" android:process=":remote" />
所以我的问题是我的调度程序工作得很好。但重启设备后没有一个报警工作。帮帮我:))
答案 0 :(得分:7)
为此,我们需要一个应该接收“BOOT_COMPLETED”广播的广播接收器。我们必须知道,当设备完成启动时,Android系统会发送“BOOT_COMPLTED”广播。
在android清单文件中注册BootReciever
<receiver android:name=".BootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.HOME" />
</intent-filter>
</receiver>
并且不要忘记在清单中添加以下权限。
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
需要此权限才能听取/谴责BOOT_COMPLETED操作
BootReceiver.java
public class BootReceiver extends BroadcastReceiver
{
public void onReceive(Context context, Intent intent)
{
// Your code to execute when Boot Completd
**Schedule your Alarm Here**
Toast.makeText(context, "Booting Completed", Toast.LENGTH_LONG).show();
}
}
BootReceiver的onRecieve()方法将在引导完成时执行,因此我们需要在onreceive()方法中编写代码
答案 1 :(得分:0)
重启时清除警报。您可以在启动时重新安排它们,方法是将它们存储在数据库中或以某种方式对它们进行序列化,并使用带有<action android:name="android.intent.action.BOOT_COMPLETED" />
操作的BroadcastReceiver启动一个在引导完成时设置警报的服务。