我试图设置3个特定时间的闹钟,并且每天都会重复这些闹钟。
我有2个Arraylists,一个持有pendingIntents,另一个持有Calendar时间。
ArrayList<PendingIntent>intentarray = new ArrayList<PendingIntent>();
ArrayList<Calendar>calTimes = new ArrayList<Calendar>();
我已经设置了以下时间
Calendar cal = Calendar.getInstance();
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
cal.set(Calendar.HOUR_OF_DAY,9);
cal.set(Calendar.MINUTE,00);
calTimes.add(cal);
cal1.setTimeInMillis(System.currentTimeMillis());
cal1.set(Calendar.HOUR_OF_DAY,15);
cal1.set(Calendar.MINUTE,00);
calTimes.add(cal1);
cal2.setTimeInMillis(System.currentTimeMillis());
cal2.set(Calendar.HOUR_OF_DAY,21);
cal2.set(Calendar.MINUTE,00);
calTimes.add(cal2);
后面跟一个数组来保存AlarmManagers
AlarmManager[] alarmManager=new AlarmManager[3];
然后在循环中,我将每个警报分配给警报管理器。
for(int i =0; i < calTimes.size(); i++){
Intent alarmIntent = new Intent(this,AlarmReceiver.class);
pendingIntent = pendingIntent.getBroadcast(this,i,alarmIntent,0);
alarmManager[i] = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager[i].setInexactRepeating(AlarmManager.RTC_WAKEUP,calTimes.get(i).getTimeInMillis(),AlarmManager.INTERVAL_DAY,alarmIntent);
intentarray.add(pendingIntent);
}
`
当我运行应用程序并更改时间以触发警报时。什么都没发生。
这是我的BroadcastReceiver。
public class AlarmReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context,"starting App",Toast.LENGTH_LONG).show();
startApp(context,"com.example.myapp");
}
public void startApp(Context context, String packageName){
Intent intent = context.getPackageManager().getLaunchIntentForPackage(packageName);
if (intent != null){
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}
}
答案 0 :(得分:1)
您要向Intent
添加AlarmManager
。您需要添加PendingIntent
。
替换
alarmManager[i].setInexactRepeating(AlarmManager.RTC_WAKEUP,calTimes.get(i).getTimeInMillis(),AlarmManager.INTERVAL_DAY,alarmIntent);
与
alarmManager[i].setInexactRepeating(AlarmManager.RTC_WAKEUP,calTimes.get(i).getTimeInMillis(),AlarmManager.INTERVAL_DAY,pendingIntent);
另一件事:您不需要使用AlarmManager
对象数组来添加重复警报。 AlarmManager
的单个实例可以。
答案 1 :(得分:0)
如果要设置许多警报,则必须为您的意图指定不同的ID(否则新警报将取代之前的警报)。
for(int i =0; i < calTimes.size(); i++){
Intent alarmIntent = new Intent(this,AlarmReceiver.class);
intent.setData(Uri.parse("timer:" + i));
pendingIntent = pendingIntent.getBroadcast(this,i,alarmIntent,0);
alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP,calTimes.get(i).getTimeInMillis(),AlarmManager.INTERVAL_DAY,alarmIntent);
intentarray.add(pendingIntent);
}
答案 2 :(得分:0)
这有效:
AlarmManager alarmManager;
alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
private void alarms(){
ArrayList<Integer> intentarray = new ArrayList<>();
ArrayList<Calendar> calTimes = new ArrayList<>();
Calendar cal = Calendar.getInstance();
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
cal.set(Calendar.HOUR_OF_DAY, 9);
cal.set(Calendar.MINUTE, 00);
calTimes.add(cal);
cal1.setTimeInMillis(System.currentTimeMillis());
cal1.set(Calendar.HOUR_OF_DAY, 15);
cal1.set(Calendar.MINUTE, 00);
calTimes.add(cal1);
cal2.setTimeInMillis(System.currentTimeMillis());
cal2.set(Calendar.HOUR_OF_DAY, 21);
cal2.set(Calendar.MINUTE,00);
calTimes.add(cal2);
Intent alarmIntent = new Intent(this, AlarmReceiver.class);
for(int i = 0; i < calTimes.size(); i++){
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, i, alarmIntent,0);
//Wake up the device to fire the alarm at approximately
alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP, calTimes.get(i).getTimeInMillis(),AlarmManager.INTERVAL_DAY, pendingIntent);
intentarray.add(i);
}
}
<强>编辑:强>
如果你需要在不使用startActivity的情况下唤醒你的Activity,你需要这样的东西:
<uses-permission android:name="android.permission.WAKE_LOCK"/>
import android.content.Context;
import android.content.Intent;
import android.os.PowerManager;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.widget.Toast;
public class AlarmReceiver extends WakefulBroadcastReceiver {
public static PowerManager.WakeLock wakeLock;
public AlarmReceiver() {
}
@Override
public void onReceive(Context context, Intent intent) {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock((PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP), "TAG");
wakeLock.acquire();
Toast.makeText(context, "starting App", Toast.LENGTH_LONG).show();
startApp(context,"com.example.myapp");
wakeLock.release();
}
public void startApp(Context context, String packageName){
Intent intent = context.getPackageManager().getLaunchIntentForPackage(packageName);
if (intent != null){
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}
}