所以我有这个代码设置在每天上午9点30分运行服务
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
cal.set(Calendar.HOUR_OF_DAY, 9);
cal.set(Calendar.MINUTE,30);
Intent start = new Intent(getActivity(), Services.class);
PendingIntent PI = PendingIntent.getService(getActivity(), 0, start, 0);
AlarmManager am = (AlarmManager)getActivity().getSystemService(getActivity().ALARM_SERVICE);
//am.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 1000*60*60*24, PI);
am.setInexactRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),AlarmManager.INTERVAL_DAY, PI);
getActivity().startService(new Intent(getActivity(), Services.class));
当我打开应用程序时它起作用，但当我关闭应用程序时，该服务根本没有运行。该服务应该根据此代码显示通知
package apps.skripsi.petvac.Services;
import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.ProgressDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AlertDialog;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import org.apache.http.client.ClientProtocolException;
import org.joda.time.DateTime;
import org.joda.time.Days;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import apps.skripsi.petvac.MainMenu.MainMenuAdapter;
import apps.skripsi.petvac.R;
import apps.skripsi.petvac.navigationmenu.MainMenu;
import apps.skripsi.petvac.notification.NotificationButtonReceiver;
import apps.skripsi.petvac.parser.JSONParser;
import apps.skripsi.petvac.petinformation.MainPetInformation;
import apps.skripsi.petvac.preference.PreferencesHelper;
public class Services extends IntentService {
Handler handler = new Handler();
PreferencesHelper ph;
MainMenu mm;
JSONObject json;
JSONObject jsonObject;
NotificationManager mNotificationManager;
int days;
String result, result2;
String sisaWaktu, sisa_hari;
String ID_USER, ID_BINATANG, NAMA_BINATANG, JENIS_BINATANG, FOTO_BINATANG, RAS_BINATANG, TANGGAL_VAKSIN, NAMA_VAKSIN, STATUS_VAKSIN, ID_DATA_WAKTU_VAKSINASI;
ArrayList<HashMap<String, String>> listBinatang = new ArrayList<HashMap<String, String>>();
public static String id_user = "id_user";
public static String id_binatang = "id_binatang";
public static String nama_binatang = "nama_binatang";
public static String jenis_binatang = "jenis_binatang";
public static String foto_binatang = "foto_binatang";
public static String ras_binatang = "ras_binatang";
public static String tanggal_vaksin = "tanggal_vaksin";
public static String nama_vaksin = "nama_vaksin";
public static String jumlah_hari;
public static String status_vaksin = "status_vaksin";
public static String id_data_waktu_vaksinasi = "id_data_waktu_vaksinasi";
private Context context;
private static String url = "http://petvaccination.hol.es/api/data_menu_utama_vaksinasi.php";
public Services() {
super("Services");
}
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
protected void onHandleIntent(Intent intent) {
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
System.out.println("create");
}
@SuppressWarnings("static-access")
@Override
public void onStart(Intent intent, int startId) {
ph = new PreferencesHelper(getApplicationContext());
mm = new MainMenu();
/* // TODO Auto-generated method stub
new Handler().postDelayed(new Thread() {
public void run() {
super.run();
handler.postDelayed(this, 30000);*/
new DataBinatangOperation().execute(url);
Toast.makeText(Services.this,"Muncul",Toast.LENGTH_SHORT).show();
/*
}
}, 5000);*/
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
handler.removeCallbacks(null);
System.out.println("destroy");
super.onDestroy();
}
public class DataBinatangOperation extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
JSONArray json;
try {
result = JSONParser.getPage(url);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
@Override
protected void onPostExecute(String result) {
try {
System.out.print("result = " + result);
json = new JSONObject(result);
//progress.dismiss();
JSONArray objek = json.getJSONArray("data_vaksinasi_menu");
for (int i = 0; i < objek.length(); i++) {
JSONObject jo = objek.getJSONObject(i);
ID_USER = jo.getString(id_user);
ID_BINATANG = jo.getString(id_binatang);
NAMA_BINATANG = jo.getString(nama_binatang);
JENIS_BINATANG = jo.getString(jenis_binatang);
FOTO_BINATANG = jo.getString(foto_binatang);
RAS_BINATANG = jo.getString(ras_binatang);
ID_DATA_WAKTU_VAKSINASI = jo.getString(id_data_waktu_vaksinasi);
TANGGAL_VAKSIN = jo.getString(tanggal_vaksin);
NAMA_VAKSIN = jo.getString(nama_vaksin);
STATUS_VAKSIN = jo.getString(status_vaksin);
if (ph.getPreferences("ID").equals(ID_USER)) {
DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
Calendar waktuSekarang = Calendar.getInstance();
Date date1 = waktuSekarang.getTime();
Date date2 = new Date();
date2 = formatter.parse(TANGGAL_VAKSIN);
if (date2.after(date1)) {
days = Days.daysBetween(new DateTime(date1), new DateTime(date2)).getDays();
if (days > 7 && days <= 30) {
int weeks = days / 7;
sisa_hari = String.valueOf(days);
sisaWaktu = String.valueOf(weeks) + " minggu";
} else if (days > 30 && days <= 365) {
int months = days / 30;
sisa_hari = String.valueOf(days);
sisaWaktu = String.valueOf(months) + " bulan";
} else if (days > 365) {
int years = days / 365;
sisa_hari = String.valueOf(days);
sisaWaktu = String.valueOf(years) + " tahun";
} else {
sisaWaktu = String.valueOf(days) + " hari";
if (days <= 5) {
sisa_hari = String.valueOf(days);
/*if(!result.equals(result2)) {*/
createSimpleNotification(context, NAMA_BINATANG, sisa_hari, ID_BINATANG);
/* }*/
}
}
} else if (date2.before(date1)) {
days = Days.daysBetween(new DateTime(date2), new DateTime(date1)).getDays();
if (days == 0) {
sisaWaktu = "sekarang";
sisa_hari = String.valueOf(days);
if (STATUS_VAKSIN.equals("belum")) {
/*if(!result.equals(result2)) {*/
createButtonNotification(context, NAMA_BINATANG, sisaWaktu, sisa_hari, ID_BINATANG, ID_DATA_WAKTU_VAKSINASI);
/*}else {
return;
}*/
}/*else{
return;
}*/
} else {
sisaWaktu = "lewat " + String.valueOf(days) + " hari";
sisa_hari = String.valueOf(days);
if (STATUS_VAKSIN.equals("belum")) {
/*if(!result.equals(result2)){*/
createButtonNotification(context, NAMA_BINATANG, sisaWaktu, sisa_hari, ID_BINATANG, ID_DATA_WAKTU_VAKSINASI);
/*}else{
return;
}*/
}
}
}
}
}
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
}
}
@Override
protected void onPreExecute() {
}
@Override
protected void onProgressUpdate(Void... values) {
}
}
public void createSimpleNotification(Context context, String nama_binatang, String sisa_hari, String id) {
Intent resultIntent = new Intent(getApplicationContext(), MainPetInformation.class);
resultIntent.putExtra("IDB", id);
resultIntent.putExtra("SW", sisa_hari);
resultIntent.putExtra("IDVAK", "");
mNotificationManager = (NotificationManager) getApplicationContext().getSystemService(this.NOTIFICATION_SERVICE);
int IntID = Integer.valueOf(id);
Uri uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
PendingIntent resultPending = PendingIntent.getActivity(getApplicationContext(), IntID, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.logo)
.setContentTitle(nama_binatang)
.setContentText(sisa_hari + " hari lagi")
.setSound(uri)
.setContentIntent(resultPending);
mNotificationManager.notify(IntID, mBuilder.build());
}
public void createButtonNotification(Context context, String nama_binatang, String sisa_waktu, String sisa_hari, String idb, String idv) {
Log.d("idb", idb);
int IntID = Integer.valueOf(idb);
int sisaHari = Integer.valueOf(sisa_hari);
String sisa_hari2;
Intent intent = new Intent(getApplicationContext(), MainPetInformation.class);
intent.putExtra("IDB", idb);
intent.putExtra("IDVAK", idv);
if (sisaHari > 0) {
sisa_hari2 = "-" + sisa_hari;
intent.putExtra("SW", sisa_hari2);
} else if (sisaHari == 0) {
intent.putExtra("SW", sisa_hari);
}
Intent cancelIntent = new Intent(getApplicationContext(), NotificationButtonReceiver.class);
cancelIntent.putExtra("notifID", IntID);
mNotificationManager = (NotificationManager) getApplicationContext().getSystemService(this.NOTIFICATION_SERVICE);
Uri uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
PendingIntent IntentAccept = PendingIntent.getActivity(getApplicationContext(), IntID, intent, PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntent IntentCancel = PendingIntent.getActivity(getApplicationContext(), IntID, cancelIntent, 0);
// Building the notifcation
NotificationCompat.Builder nBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.logo)
.setContentTitle(nama_binatang)
.setContentText(sisa_waktu)
.setSound(uri)
.addAction(R.drawable.accept, "Accept", IntentAccept)
.addAction(R.drawable.cancel, "Cancel", IntentCancel);
nBuilder.setAutoCancel(true);
mNotificationManager.notify(IntID, nBuilder.build());
}
}
即使应用已关闭，任何使其在后台运行的解决方案？
答案 0 :(得分：0)
您可以使用闹钟管理器来执行此操作
Calendar cur_cal = Calendar.getInstance();
cur_cal.setTimeInMillis(System.currentTimeMillis());
cur_cal.add(Calendar.SECOND, 50);
Intent intent = new Intent(YourActivity.this, ServiceClass.class);
PendingIntent pintent = PendingIntent.getService(YourActivity.this, 0, intent, 0);
AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
alarm.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 30*1000, pintent);
另外，您确保在manifestet文件中声明了服务类，如此
<service android:enabled="true" android:name=".ServiceClass" />
希望这会对你有所帮助