Question

我正在做一个示例警报应用程序。

设置时间后，设置广播但是当时没有调用接收方法

ReminderMainActivity：

public class ReminderMainActivity extends Activity implements OnClickListener, TimePicker.OnTimeChangedListener                                                 {

    DatePicker          _datePicker         = null;
    TimePicker          _timePicker         = null;
    EditText            _taskEditText       = null;
    Button              _setButton          = null;
    String              _st_time            = null;
    String              _st_date            = null;
    Calendar            _calendar           = null;
    Calendar            _calendarNow        = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.reminder_view);
        init();
    }


    private void init() {
        // TODO Auto-generated method stub
        _datePicker   = (DatePicker) findViewById(R.id.date_picker);
        _timePicker   = (TimePicker) findViewById(R.id.time_picker);
        _taskEditText = (EditText) findViewById(R.id.task_desc);
        _setButton    = (Button) findViewById(R.id.set_button);
         _calendarNow  = Calendar.getInstance();
        _calendar = (Calendar) _calendarNow.clone();

        _timePicker.setOnTimeChangedListener(this);
        _setButton.setOnClickListener(this);


    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        String st_taskDescription = _taskEditText.getText().toString();
        int year = _datePicker.getYear();
        int monthOfYear = _datePicker.getMonth();
        int dayOfMonth = _datePicker.getDayOfMonth();


        _calendar.set(Calendar.YEAR, year);
        _calendar.set(Calendar.MONTH, monthOfYear);
        _calendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
        _calendar.set(Calendar.SECOND, 0);
        _calendar.set(Calendar.MILLISECOND, 0);

        Log.i("", "Alarm Set:  " + _calendar.getTimeInMillis());
         if(_calendar.compareTo(_calendarNow) <= 0){
                //Today Set time passed, count to tomorrow
                _calendar.add(Calendar.DATE, 1);
                Log.i("", "Time passed : " + _calendar.getTimeInMillis());
                Toast.makeText(this, "Time passed" + _calendar.getTimeInMillis(), Toast.LENGTH_SHORT).show();

               }



        Intent intent = new Intent(this,AlarmReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(ReminderMainActivity.this, 0, intent, 0);
        AlarmManager alarm_manager = (AlarmManager) getSystemService(ALARM_SERVICE);        
        alarm_manager.set(AlarmManager.RTC_WAKEUP, _calendar.getTimeInMillis(), pendingIntent);
        Toast.makeText(this, "Alarm Set:  " + _calendar.getTimeInMillis(), Toast.LENGTH_SHORT).show();

    }

    @Override
    public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
        // TODO Auto-generated method stub
        _calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
        _calendar.set(Calendar.MINUTE, minute);
        _st_time = hourOfDay + " : " + minute;
    }

}

接收者类

public class AlarmReceiver extends BroadcastReceiver{
    @Override
    public void onReceive(Context arg0, Intent arg1) {
        // TODO Auto-generated method stub
        Log.i("AlarmActivity", "Receiver");
        Toast.makeText(arg0, "Intent Received", Toast.LENGTH_SHORT).show();
    }

}

如果我用_calendar.getTimeInMillis()替换 System.CurrentTimeInMillis()然后它起作用..但那不是我想要的

清单中也提到了Receiver类。我无法找到错误。有人可以帮忙吗？我错过了什么吗？

Answer 1

获得解决方案。获取日历实例后，清除值。

_calendarNow  = Calendar.getInstance();
_calendar = (Calendar) _calendarNow.clone();
_calendar.clear();

广播没有达到接收方法

1 个答案: