Question

我正在使用警报管理器发送一个消息，但警报没有正常工作。如果时间是18小时，我设置了8小时的警报，那么它会在那时发送消息。这是代码。

public class Time_Picker extends AppCompatActivity {
    TimePicker time_picker;
    String tag="pritesh";
    static AlarmManager[] alarmManager=new AlarmManager[5];
    static PendingIntent[] pendingIntent = new PendingIntent[5];
    EditText message;
    EditText phone;
    Intent myIntent;
  //  AlarmManager alarmManager;
    //PendingIntent pendingIntent;
    public static String Phone;
    public static String Message;
    public int i;
    array ob=new array();
    static ArrayList<PendingIntent> pendingarray=new ArrayList<>(5);      

    public void setAlarm(View view) {

                //      AlarmManager alarmManager[]=new AlarmManager[5];

//          if(prevention.timer==0) {
                Phone = phone.getText().toString();
                Message = message.getText().toString();
                phone.setText("");
                message.setText("");
                //Validating if any field empty
                if (Phone.length() >= 10 && Message.length() > 0) {
                    Toast.makeText(this.getApplicationContext(), "Your sms will be sent soon", Toast.LENGTH_SHORT).show();
                    //Getting Calender Reference
                    Calendar cal = Calendar.getInstance();
                    int currentApiVersion = android.os.Build.VERSION.SDK_INT;
                    if (currentApiVersion > android.os.Build.VERSION_CODES.LOLLIPOP_MR1) {
                        cal.set(Calendar.MINUTE, time_picker.getMinute());
                        cal.set(Calendar.HOUR_OF_DAY, time_picker.getHour());
                    } else {
                        //Setting the date and time from the time picker
                        cal.set(Calendar.MINUTE, time_picker.getCurrentMinute());
                        cal.set(Calendar.HOUR_OF_DAY, time_picker.getCurrentHour());
                    }
                    int a = (Calendar.getInstance().get(Calendar.SECOND) * 1000);
                    i=array.select;
                    myIntent = new Intent(this, MyReceiver.class);
                    myIntent.putExtra("pos",array.select);
                    //Pending Intent for sending the intent afterwards
                    pendingIntent[array.select] = PendingIntent.getBroadcast(this.getApplicationContext(), array.select, myIntent, 0);
                    alarmManager[array.select] = (AlarmManager) (this.getSystemService(Context.ALARM_SERVICE));
                    alarmManager[array.select].set(AlarmManager.RTC, cal.getTimeInMillis() - a, pendingIntent[array.select]);

                    pendingarray.add(pendingIntent[array.select]);
                    sms_list.Phone[array.select]=Phone;
                    Intent back = new Intent(this, sms_list.class);
                    back.putExtra("PHONE", Phone);
                    back.putExtra("Flag",2);
                    back.putExtra("MSG", Message);
                    back.putExtra("HOUR", (int) cal.get(Calendar.HOUR_OF_DAY));
                    back.putExtra("MIN", (int) cal.get(Calendar.MINUTE));

                    startActivity(back);

                    //int b;

                }
                else
                {
                    Toast.makeText(this.getApplicationContext(), "Please Fill Up All The Details", Toast.LENGTH_SHORT).show();
                    array.a[array.select]=false;
                    ob.sort();
                }


    }

}

代码，即使我设置的时间差别很大也不起作用。

我可以使用12时钟设置闹钟吗？

Answer 1

您无法将闹钟设置为已经过去的时间。

 alarmManager[array.select].set(AlarmManager.RTC, cal.getTimeInMillis() - a, pendingIntent[array.select]);

尝试将来的时间如下。

alarmMgr.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
    SystemClock.elapsedRealtime() +
    60 * 1000, alarmIntent);

报警管理器无法正常工作

1 个答案: