我正在创建一个简单的应用程序，它在一天中的8个不同时间生成通知。服务使用警报管理器生成警报，我使用广播接收器捕获警报并显示吐司/创建通知。
问题在于我无法创建多个警报。我用来创建多个警报的方法对于每个警报都是一个不同的意图..但是一旦我在模拟器上启动应用程序，所有消息一次同时显示.. 我不知道这是不是正确的方法.. 如果有，请帮我纠正 如果没有，请提出一些替代方法
我附加了服务和接收器的代码
package com.example.firstapp;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Calendar;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class MyService extends Service {
private static final String tag = null;
int number = 0;
// MediaPlayer player;
String str, bread;
StringBuffer buf1, buf2, buf3, buf4, buf5, buf6, buf7, buf8;
Calendar time1, time2, time3, time4, time5, time6, time7, time8;
Bundle basket;;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Toast.makeText(this, "Service created", Toast.LENGTH_LONG).show();
Log.i(tag, "service created");
// player=MediaPlayer.create(this, R.raw.song);
// player.setLooping(false);
try {
createalarm();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void createalarm() throws IOException {
// TODO Auto-generated method stub
AlarmManager alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent i1 = new Intent(this, MyAlarmReceiver.class);
Intent i2 = new Intent(this, MyAlarmReceiver.class);
Intent i3 = new Intent(this, MyAlarmReceiver.class);
Intent i4 = new Intent(this, MyAlarmReceiver.class);
Intent i5 = new Intent(this, MyAlarmReceiver.class);
Intent i6 = new Intent(this, MyAlarmReceiver.class);
Intent i7 = new Intent(this, MyAlarmReceiver.class);
Intent i8 = new Intent(this, MyAlarmReceiver.class);
fillbuffers();
/*
* fillbread(4); Bundle basket = new Bundle(); basket.putString("key",
* bread); i.putExtras(basket);
*/
PendingIntent pendingi1,pendingi2,pendingi3,pendingi4,pendingi5,pendingi6,pendingi7,pendingi8;
time1 = Calendar.getInstance();
time2 = Calendar.getInstance();
time3 = Calendar.getInstance();
time4 = Calendar.getInstance();
time5 = Calendar.getInstance();
time6 = Calendar.getInstance();
time7 = Calendar.getInstance();
time8 = Calendar.getInstance();
time1.setTimeInMillis(System.currentTimeMillis());
time1.set(Calendar.HOUR_OF_DAY, 16);
time1.set(Calendar.MINUTE, 40);
time1.set(Calendar.SECOND, 0);
time1.set(Calendar.MILLISECOND, 0);
time2.setTimeInMillis(System.currentTimeMillis());
time2.set(Calendar.HOUR_OF_DAY, 16);
time2.set(Calendar.MINUTE, 41);
time2.set(Calendar.SECOND, 0);
time2.set(Calendar.MILLISECOND, 0);
time3.setTimeInMillis(System.currentTimeMillis());
time3.set(Calendar.HOUR_OF_DAY, 16);
time3.set(Calendar.MINUTE, 42);
time3.set(Calendar.SECOND, 0);
time3.set(Calendar.MILLISECOND, 0);
time4.setTimeInMillis(System.currentTimeMillis());
time4.set(Calendar.HOUR_OF_DAY, 16);
time4.set(Calendar.MINUTE, 43);
time4.set(Calendar.SECOND, 0);
time4.set(Calendar.MILLISECOND, 0);
time5.setTimeInMillis(System.currentTimeMillis());
time5.set(Calendar.HOUR_OF_DAY, 16);
time5.set(Calendar.MINUTE, 44);
time5.set(Calendar.SECOND, 0);
time5.set(Calendar.MILLISECOND, 0);
time6.setTimeInMillis(System.currentTimeMillis());
time6.set(Calendar.HOUR_OF_DAY, 16);
time6.set(Calendar.MINUTE,45);
time6.set(Calendar.SECOND, 0);
time6.set(Calendar.MILLISECOND, 0);
time7.setTimeInMillis(System.currentTimeMillis());
time7.set(Calendar.HOUR_OF_DAY, 16);
time7.set(Calendar.MINUTE, 46);
time7.set(Calendar.SECOND, 0);
time7.set(Calendar.MILLISECOND, 0);
time8.setTimeInMillis(System.currentTimeMillis());
time8.set(Calendar.HOUR_OF_DAY, 16);
time8.set(Calendar.MINUTE, 47);
time8.set(Calendar.SECOND, 0);
time8.set(Calendar.MILLISECOND, 0);
// fillbread();
//if (true) {
fillbread(1);
basket = new Bundle();
basket.putString("key", bread);
i1.putExtras(basket);
pendingi1 = PendingIntent.getBroadcast(this, 0, i1,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, time1.getTimeInMillis(),
pendingi1);
//}
//if (System.currentTimeMillis() == time2.getTimeInMillis()) {
fillbread(2);
basket = new Bundle();
basket.putString("key", bread);
i2.putExtras(basket);
pendingi2 = PendingIntent.getBroadcast(this, 0, i2,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, time2.getTimeInMillis(),
pendingi2);
// }
// if (System.currentTimeMillis() == time3.getTimeInMillis()) {
fillbread(3);
basket = new Bundle();
basket.putString("key", bread);
i3.putExtras(basket);
pendingi3 = PendingIntent.getBroadcast(this, 0, i3,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, time3.getTimeInMillis(),
pendingi3);
// }
//if (System.currentTimeMillis() == time4.getTimeInMillis()) {
fillbread(4);
basket = new Bundle();
basket.putString("key", bread);
i4.putExtras(basket);
pendingi4 = PendingIntent.getBroadcast(this, 0, i4,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
pendingi4);
// }
//else if (System.currentTimeMillis() == time5.getTimeInMillis()) {
fillbread(5);
basket = new Bundle();
basket.putString("key", bread);
i5.putExtras(basket);
pendingi5 = PendingIntent.getBroadcast(this, 0, i5,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
pendingi5);
// } else if (System.currentTimeMillis() == time6.getTimeInMillis()) {
fillbread(6);
basket = new Bundle();
basket.putString("key", bread);
i6.putExtras(basket);
pendingi6 = PendingIntent.getBroadcast(this, 0, i6,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
pendingi6);
// } else if (System.currentTimeMillis() == time7.getTimeInMillis()) {
fillbread(7);
basket = new Bundle();
basket.putString("key", bread);
i7.putExtras(basket);
pendingi7 = PendingIntent.getBroadcast(this, 0, i7,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
pendingi7);
//} else if (System.currentTimeMillis() == time8.getTimeInMillis()) {
fillbread(8);
basket = new Bundle();
basket.putString("key", bread);
i8.putExtras(basket);
pendingi8 = PendingIntent.getBroadcast(this, 0, i8,PendingIntent.FLAG_UPDATE_CURRENT);
alarmMgr.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
pendingi8);
// }
}
private void fillbread(int number) {
// TODO Auto-generated method stub
switch (number) {
case 1:
bread = buf1.toString();
break;
case 2:
bread = buf2.toString();
break;
case 3:
bread = buf3.toString();
break;
case 4:
bread = buf4.toString();
break;
case 5:
bread = buf5.toString();
break;
case 6:
bread = buf6.toString();
break;
case 7:
bread = buf7.toString();
break;
case 8:
bread = buf8.toString();
break;
}
}
private void fillbuffers() throws IOException {
// TODO Auto-generated method stub
StringBuffer buf = new StringBuffer();
buf1 = new StringBuffer();
buf2 = new StringBuffer();
buf3 = new StringBuffer();
buf4 = new StringBuffer();
buf5 = new StringBuffer();
buf6 = new StringBuffer();
buf7 = new StringBuffer();
buf8 = new StringBuffer();
InputStream is = this.getResources().openRawResource(R.drawable.yo);
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
int index = 1, tcount = 0;
String line;
if (is != null) {
while ((line = reader.readLine()) != null && tcount < 8) {
switch (index) {
case 1:
buf1.append(line + "\n");
break;
case 2:
buf2.append(line + "\n");
break;
case 3:
buf3.append(line + "\n");
break;
case 4:
buf4.append(line + "\n");
break;
case 5:
buf5.append(line + "\n");
break;
case 6:
buf6.append(line + "\n");
break;
case 7:
buf7.append(line + "\n");
break;
case 8:
buf8.append(line + "\n");
break;
}
buf.append(line + "\n");
tcount = tcount + 1;
index = index + 1;
}
}
// bread=buf1.toString();
is.close();
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
Toast.makeText(this, "service destoryed", Toast.LENGTH_LONG).show();
// player.stop();
}
@SuppressWarnings("deprecation")
@Override
public void onStart(Intent intent, int startId) {
// TODO Auto-generated method stub
super.onStart(intent, startId);
Log.i(tag, "service started");
// player.start();
}
}
接收码::
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class MyAlarmReceiver extends BroadcastReceiver {
@SuppressWarnings("deprecation")
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Bundle gotBasket = intent.getExtras();
String msg = gotBasket.getString("key");
Toast.makeText(context, msg, Toast.LENGTH_LONG).show();
NotificationManager nm =(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
@SuppressWarnings("deprecation")
Notification notify=new Notification(android.R.drawable.stat_notify_missed_call, msg, System.currentTimeMillis());
Intent intent1= new Intent(context, DisplayMessage.class);
Bundle basket = new Bundle();
basket.putString("msg", msg);
intent1.putExtras(basket);
PendingIntent pending= PendingIntent.getActivity(context, 0, intent1, 0);
notify.setLatestEventInfo(context, msg, "just a greeting message for you", pending);
Notification noti = new Notification.Builder(context)
.setContentTitle("just a greeting message for you")
.setContentText(msg)
.setSmallIcon(android.R.drawable.alert_dark_frame)
.build();
nm.notify(0, notify);
/*
* Intent ourIntent= new Intent(context, Menu.class);
* context.startActivity(ourIntent); //startAcTivity(ourIntent);
*/
/*
* AlertDialog.Builder builder = new AlertDialog.Builder(context);
* builder.setMessage(msg); builder.setCancelable(false);
* builder.setPositiveButton("ok", new DialogInterface.OnClickListener()
* {
*
* @Override public void onClick(DialogInterface dialog, int which) { //
* TODO Auto-generated method stub } }); AlertDialog alert=
* builder.create(); alert.show();
*/
}
}
答案 0 :(得分：0)
我想这是因为你正在使用FLAG_UPDATE_CURRENT标志
pendingi1 = PendingIntent.getBroadcast(this, 0, i1,PendingIntent.FLAG_UPDATE_CURRENT);
如果您不希望替换先前的pendingIntent，请在任何地方使用FLAG_ONE_SHOT。
pendingi1 = PendingIntent.getBroadcast(this, 0, i1,PendingIntent.FLAG_ONE_SHOT);
答案 1 :(得分：0)
我认为这种情况正在发生，因为您对所有重叠的用户使用相同的通知ID 因此对所有使用不同的ID是nm.notify（0，notify）; 将0替换为1,2,3 ...
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