我想在android中创建一个始终在后台运行的服务，并在我启动手机并定期发送消息后立即启动。我编写了如下代码
MainActivity.class
package test.sai;
public class MainActivity extends Activity {
Timer t;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
alrm();
Log.e("msg", "in main");
}
public void alrm() {
Intent myAlarm = new Intent(getApplicationContext(), AlarmReceiver.class);
Log.e("msg", "in alrm");
//myAlarm.putExtra("project_id", project_id); //Put Extra if needed
PendingIntent recurringAlarm = v PendingIntent.getBroadcast(getApplicationContext(), 0, myAlarm, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarms = (AlarmManager) this.getSystemService(Context.ALARM_SERVICE);
Calendar updateTime = Calendar.getInstance();
Log.e("msg", "in alrm1");
//updateTime.setWhatever(0);
alarms.setInexactRepeating(AlarmManager.RTC_WAKEUP, updateTime.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES, recurringAlarm); //you can modify the interval of course
}
}
此类正在调用 AlarmReceiver.class
package test.sai;
public class AlarmReceiver extends BroadcastReceiver
{
GPSTracker gps;
@Override
public void onReceive(Context context, Intent intent)
{
gps = new GPSTracker(context);
if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
Intent pushIntent = new Intent(context,MainActivity.class);
pushIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(pushIntent);
Log.e("pro", "alrmmanager");
}
Intent myService = new Intent(context, FirstService.class);
myService.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startService(myService);
Log.e("msg", "in alrmmanager1");
}
}
最后 AlarmReceiver 正在调用服务类
package test.sai;
public class FirstService extends Service{
Timer t;
int time = 0;
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onStart(Intent intent, int startId) {
Log.e("time", time++ +"");
Toast.makeText(this, time+1+"", 500).show();
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}
}
现在我想在服务开始后立即使用 GPS，然后我想使用 GPS 来跟踪手机的位置并向另一部手机发送消息。我也有 GPS 和短信发送的代码，但我不知道如何打电话和在哪里打电话调用这些方法，以便我的服务继续运行并以特定的时间间隔发送消息。请帮助。