Question

我使用alarmManager来控制Locationmanager以始终检查距离。我使用setRepeating闹钟总是10秒（用于检查）

我想在用户外出区域时第一次提醒应用程序（距离> 100米）但它每隔10秒就会发出警报（用户熄灭）。

第一次提醒时如何取消？

非常感谢你。

活动

        trackchk.setOnCheckedChangeListener(new OnCheckedChangeListener() {     
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                // TODO Auto-generated method stub
                if(trackchk.isChecked())
                {
                    Intent intrack = new Intent(hatebug.this,trackservice.class);
                    intrack.putExtra("LT", lattointent);
                    intrack.putExtra("LN", lontointent);

                    Calendar calendartrack = Calendar.getInstance();
                    calendartrack.setTimeInMillis(System.currentTimeMillis());
                    calendartrack.add(Calendar.SECOND, 3);
                    getPreferences(MODE_PRIVATE).edit().putBoolean("CHECKTRACK", true).commit();
                    tracklocal = PendingIntent.getService(hatebug.this, 0, intrack, PendingIntent.FLAG_UPDATE_CURRENT);
                    alarmtrack = (AlarmManager)getSystemService(ALARM_SERVICE);
                    alarmtrack.setRepeating(AlarmManager.RTC_WAKEUP, calendartrack.getTimeInMillis(), 6000, tracklocal);
                }
                else {
                    getPreferences(MODE_PRIVATE).edit().putBoolean("CHECKTRACK", false).commit();
                    alarmtrack = (AlarmManager)getSystemService(ALARM_SERVICE);
                    alarmtrack.cancel(tracklocal);
                }
            }
        });

服务（onStart）

public void onStart(Intent intent,int startId){
            // TODO Auto-generated method stub
        float latserv = intent.getFloatExtra("LT", 0);
        float lonserv  =intent.getFloatExtra("LN", 0);      
        String slat = String.valueOf(latserv);
        String slon = String.valueOf(lonserv);
        LocationManager locate = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
        Location lm = locate.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        float lat = (float) lm.getLatitude();
        float lon = (float) lm.getLongitude();
        float dlat = (float) Math.toRadians(lat - latserv);
        float dlon = (float) Math.toRadians(lon - lonserv);
        float a1 = (float) ((Math.sin(dlat/2))*(Math.sin(dlat/2)));
        float a2 = (float) ((Math.cos(Math.toRadians(lon)))*(Math.cos(Math.toRadians(100.546652)))*(Math.sin(dlon/2))*(Math.sin(dlon/2)));
        float a = a1+a2;
        float c = (float) (2*Math.atan2(Math.sqrt(a), Math.sqrt(1-a)));
        float d = 6371000*c;

        String lool = String.format("Latitude\t\t: %1$s\nLongitude\t: %2$s\nDistance\t\t: %3$f",slat,slon,d);
        Toast.makeText(getApplicationContext(), lool, Toast.LENGTH_SHORT).show();
        if(d>100)
        {

                            Vibrator vibrator = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
                            vibrator.vibrate(1000);                     
        }
}

Answer 1

致电AlarmManager.cancel(PendingIntent operation)

如何取消服务android中的alarmmanager

1 个答案: