我正在开发一个短信调度程序App。在这里，用户可以设置时间，数字和消息。只要我只需要安排一条消息，我的代码就可以正常工作。但是，如果我想拥有多个时间表，那么新的时间表将取代旧的时间表。
我正在使用的技术是创建一个具有不同请求代码的待处理意图数组，正如我读过的其他一些帖子所建议的那样，但是新的计划取代了旧计划。
以下是我的代码：
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_zax_sms_scheduler);
Button dateSet=(Button) findViewById(R.id.dateSetBtn);
Button timeSet=(Button) findViewById(R.id.timeSetBtn);
dateSet.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
DatePickerDialog.OnDateSetListener d=new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthodyear, int dayofmonth) {
// TODO Auto-generated method stub
mMonth=monthodyear;
mYear=year;
mDay=dayofmonth;
Toast.makeText(getBaseContext(), "Date Set is :"+mDay+"/"+(mMonth+1)+"/"+mYear, Toast.LENGTH_SHORT).show();
}
};
// TODO Auto-generated method stub
new DatePickerDialog(ZaxSmsScheduler.this,d,Calendar.YEAR,Calendar.MONTH,Calendar.DAY_OF_MONTH).show();
}
});
timeSet.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
TimePickerDialog.OnTimeSetListener t=new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker view2, int hour, int min) {
// TODO Auto-generated method stub
mHour=hour;
mMin=min;
if(mHour>=12)
mHour=mHour-12;
Log.d("MYAPP", "hh:"+mHour+"\nmm:"+mMin);
Toast.makeText(getBaseContext(), "Time Set is:"+mHour+":"+mMin+":00", Toast.LENGTH_SHORT).show();
}
};
Calendar cal=Calendar.getInstance();
new TimePickerDialog(ZaxSmsScheduler.this,t,cal.get(Calendar.HOUR_OF_DAY),cal.get(Calendar.MINUTE),true).show();
}
});
Button saveAndClearBtn=(Button) findViewById(R.id.saveBtn);
saveAndClearBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Calendar myCal=Calendar.getInstance();
long timeToTrigger;
/*myCal.set(Calendar.DAY_OF_MONTH, mDay);
myCal.set(Calendar.MONTH,mMonth);
myCal.set(Calendar.YEAR, mYear);*/
myCal.set(Calendar.HOUR, mHour);
myCal.set(Calendar.MINUTE, mMin);
myCal.set(Calendar.SECOND, 0);
long setTime=myCal.getTimeInMillis();
if(setTime>System.currentTimeMillis())
{
timeToTrigger=setTime-System.currentTimeMillis();
EditText edt1=(EditText) findViewById(R.id.editText1);
EditText edt2=(EditText) findViewById(R.id.editText2);
msg=edt2.getText().toString();
telno=edt1.getText().toString();
SQLiteDatabase db=openOrCreateDatabase("MYDB", MODE_PRIVATE, null);
db.execSQL("CREATE TABLE IF NOT EXISTS mySmsScheduler(SlNo VARCHAR,Number VARCHAR,Msg VARCHAR);");
String s="INSERT INTO mySmsScheduler VALUES ('"+count+"','"+telno+"','"+msg+"');";
db.execSQL(s);
Log.d("MYREC", "Insertion of data successfull");
db.close();
edt1.setText("");
edt2.setText("");
Intent intent = new Intent();
intent.setClass(ZaxSmsScheduler.this, MyBroadcastReceiver.class);
Bundle b = new Bundle();
b.putString("index", Integer.toString(count));
intent.putExtras(b);
PendingIntent pendingIntent = PendingIntent.getBroadcast(ZaxSmsScheduler.this, (int)Math.random(), intent, 0);
intentArray.add(pendingIntent);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()
+ timeToTrigger, intentArray.get(count));
count++;
Toast.makeText(getBaseContext(), "Sms Scheduled after:"+(timeToTrigger/1000)+" sec.", Toast.LENGTH_SHORT).show();
Log.d("MYAPP", "Set Time:"+(setTime/1000)+"Sec. \n"+"Cur time:"+System.currentTimeMillis()/1000);
Log.d("MYAPP", "Time to trigger:"+(timeToTrigger/1000)+"sec.");
}
else
{
Toast.makeText(getBaseContext(), "Please Enter a valid time", Toast.LENGTH_SHORT).show();
Calendar calendar =Calendar.getInstance();
int h=calendar.get(Calendar.HOUR);
int m=calendar.get(Calendar.MINUTE);
Log.d("MYAPP", "cur HH:"+h+"\ncur MM:"+m);
}
}
});
}
我的广播接收器的代码是：
@Override
public void onReceive(Context arg0, Intent intent) {
// TODO Auto-generated method stub
int myCount;
String cnt=intent.getStringExtra("index");
if(cnt==null)
Log.d("MYAPP","Data not received");
Log.d("MYAPP", "Count:"+cnt);
myCount=Integer.parseInt(cnt);
Log.d("MYAPP","Broadcast receiver called...");
SQLiteDatabase db=arg0.openOrCreateDatabase("MYDB",Context.MODE_PRIVATE, null);
Cursor c=db.rawQuery("SELECT Number, Msg FROM mySmsScheduler WHERE SlNo=="+myCount, null);
Log.d("MYAPP", "Cursor reference obtained...");
if(c!=null)
{
c.moveToFirst();
}
else
Log.d("MYAPP", "cursor is null");
/* c.moveToFirst();*/
String num=c.getString(c.getColumnIndex("Number"));
String myMsg=c.getString(c.getColumnIndex("Msg"));
Log.d("MYAPP", "number:"+num+"\nMsg:"+myMsg);
SmsManager sm = SmsManager.getDefault();
sm.sendTextMessage(num, null, myMsg, null, null);
Log.d("MYAPP", "Message Sent");
Toast.makeText(arg0, "Msg sent successfully", Toast.LENGTH_LONG).show();
String table="mySmsScheduler";
String whereClause = "SlNo = ?";
String[] whereArgs = new String[] { Integer.toString(ZaxSmsScheduler.count) };
db.delete(table, whereClause, whereArgs);
db.close();
Log.d("MYAPP", "Entry deleted..");
//sm.sendTextMessage(ZaxSmsScheduler.telno, null, ZaxSmsScheduler.msg, null, null);
}
我已在我的清单中设置了所需的权限，并已注册我的广播接收器。我恳请您提供宝贵的建议来解决这个问题。
提前致谢。
答案 0 :(得分：1)
为多个警报使用不同的通知ID
@Override
public void onReceive(Context c, Intent i) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
Bundle bundle = i.getExtras();
String title = bundle.getString("title");
String text = bundle.getString("text");
String billno = bundle.getString("billno");
int id = bundle.getInt("id");
Toast.makeText(c, text, Toast.LENGTH_LONG).show();
final int NOTIF_ID = id;
// final int NOTIF_ID = 1;
NotificationManager notofManager = (NotificationManager) c
.getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(c, AyyappaGoldActivity.class);
//notificationIntent.putExtra("billno", billno);
PendingIntent contentIntent = PendingIntent.getActivity(c, 0,
notificationIntent, 0);
Notification notification = new Notification(icon, title, when);
notification.setLatestEventInfo(c, title, text, contentIntent);
//notification.flags = Notification.FLAG_INSISTENT;
notification.defaults |= Notification.DEFAULT_SOUND;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notofManager.notify(NOTIF_ID, notification);
}
}
setAlarm的代码;
int NOTIF_ID = (int) cal.getTimeInMillis();
NOTIF_ID++;
Intent intent = new Intent(getApplicationContext(), AlarmActivity.class);
intent.putExtra("title", title);
intent.putExtra("text", text);
intent.putExtra("billno", billno);
intent.putExtra("id", NOTIF_ID);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
getApplicationContext(), NOTIF_ID, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
@SuppressWarnings("static-access")
AlarmManager alarmManager = (AlarmManager) getApplicationContext()
.getSystemService(getApplicationContext().ALARM_SERVICE);
alarmManager.cancel(pendingIntent); // cancel any existing alarms
alarmManager.set(AlarmManager.RTC_WAKEUP,
cal.getTimeInMillis(), pendingIntent);