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我有檢查數據庫的代碼,如果用戶想讓GPS運行。我需要運行這個每隔幾分鐘我可以使用Intentservice來運行該方法。我已經嘗試過實現Looper,但是最終代碼再也沒有運行檢查。沒有Looper我得到Looper錯誤,我不能在線程中創建一個沒有調用Looper.prepare()的處理程序;從intentservice切換位置更新
Timer timer = new Timer();
TimerTask gpsTask = new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
gpsPlotter();
}
};
// schedule the task to run starting now and then every hour...
timer.schedule(gpsTask, 0, 200);
private void gpsPlotter(){
// TODO Auto-generated method stub
try{
BeaconHandler dbg = new BeaconHandler(Ping.this);
List<Beacon> beacons = dbg.getAllBeacons();
int activecheck = 0;
for(Beacon bn : beacons){
activecheck = activecheck + bn.getStatus();
}
//db.close();
if(activecheck > 0 && updateset == 0){
pinger.requestLocationUpdates(LocationManager.GPS_PROVIDER, 60000, 10, reciever);
updateset = 1;
Log.d("GPS RESET", "Listener Set");
}
else if(activecheck == 0 && updateset == 1){
pinger.removeUpdates(reciever);
updateset = 0;
Log.d("GPS RESET", "Listener Removed");
}
else{
Log.d("GPS RESET", "No Modifications");
}
}
catch(Exception e){
Log.e("GPS RESET ERROR", e.getMessage(), e);
}
}