我正在使用以下代码来提醒用户在特定时间使用有关应用程序中新更新的通知，一切正常，我们会在所需时间接收提醒
这是mainactivity.java
public void setAlarm(){
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmIntent = new Intent(MainActivity.this, AlarmReceiver.class);
pendingIntent = PendingIntent.getBroadcast( MainActivity.this, 0, alarmIntent, 0);
alarmStartTime.set(Calendar.HOUR_OF_DAY, 10);
alarmStartTime.set(Calendar.MINUTE, 00);
alarmStartTime.set(Calendar.SECOND, 0);
alarmManager.setRepeating(AlarmManager.RTC, alarmStartTime.getTimeInMillis(), getInterval(), pendingIntent);
}
private int getInterval(){
int days = 1;
int hours = 24;
int minutes = 60;
int seconds = 60;
int milliseconds = 1000;
int repeatMS = days * hours * minutes * seconds * milliseconds;
return repeatMS;
}
AlarmReceiver.java
public class AlarmReceiver extends BroadcastReceiver {
NotificationManager notificationManager;
@Override
public void onReceive(Context context, Intent intent) {
Intent service1 = new Intent(context, AlarmService.class);
context.startService(service1);
}
}
和AlarmService.java
public class AlarmService extends Service {
private static final int NOTIFICATION_ID = 1;
private NotificationManager notificationManager;
private PendingIntent pendingIntent;
@Override
public IBinder onBind(Intent arg0)
{
return null;
}
@SuppressWarnings("static-access")
@Override
public void onStart(Intent intent, int startId)
{
super.onStart(intent, startId);
Context context = this.getApplicationContext();
notificationManager = (NotificationManager)context.getSystemService(context.NOTIFICATION_SERVICE);
Intent mIntent = new Intent(this, MainActivity.class);
pendingIntent = PendingIntent.getActivity(context, 0, mIntent, PendingIntent.FLAG_CANCEL_CURRENT);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setContentTitle("Bananas");
builder.setContentText("get your bananas");
builder.setSmallIcon(R.drawable.ic_launcher);
builder.setContentIntent(pendingIntent);
notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
notificationManager.notify(NOTIFICATION_ID, builder.build());
}
}
我的问题是，如果我们重新启动电话后，先前有关警报的所有信息都丢失了，并且重新启动后下次没有收到警报，那该怎么办，这是警报管理器或通知出现问题。
您需要将此添加到您的AndroidManifest.xml：
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver
android:name="Your package name.AlarmReboot"
android:enabled="true"
android:exported="true" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>
并添加一个广播接收器，一旦电话重启，它将重新设置警报：
public class AlarmReboot extends BroadcastReceiver{
}
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我来说两句