每次打开应用程序时，警报管理器都会显示通知
Alarm manager show notification every time when i open the app
我正在使用 requestj api 从服务器发送和接收数据，并按时设置我从服务器收到的警报和从接收时间起两个小时前的警报呼叫，但问题是当警报时在准确的时间触发它也会在每次 api 调用时触发，直到 2 小时未完成。有谁知道如何预防吗？
1.API代码在这里
fun getAllFriendsReminders(context: Context) {
val getReminderHttpRequest = HttpRequest()
// val myList = ArrayList<FriendsRemindersListModel>()
getReminderHttpRequest.setOnResponseListener { getReminderListResponse ->
Log.e("getReminders List", getReminderListResponse.code.toString())
Log.e("getReminders List", getReminderListResponse.text)
if (getReminderListResponse.code == HttpResponse.HTTP_OK) {
Log.e("getReminders List", getReminderListResponse.code.toString())
val jsonArray = getReminderListResponse.toJSONArray()
getReminderListModel.clear()
Log.e("list", jsonArray.length().toString())
Log.e("list", jsonArray.toString())
val loggedInUser = appGlobals.getValueString("loginUsername")
for (i in 0 until jsonArray!!.length()) {
if (!onForeGround) {
progressBar!!.progress = i
}
Log.e("listi", i.toString())
val jsonObject = jsonArray.getJSONObject(i)
friendReminderText = jsonObject.getString("reminder")
friendReminderFromName = jsonObject.getString("reminder_from")
friendReminderToName = jsonObject.getString("reminder_to")
friendReminderDate = jsonObject.getString("date")
friendReminderStatus = jsonObject.getString("status")
friendReminderId = jsonObject.getString("id")
if (friendReminderFromName != loggedInUser) {
getReminderListModel.add(FriendsRemindersListModel(0, friendReminderId.toInt(),friendReminderText,
friendReminderDate, friendReminderFromName, friendReminderToName, friendReminderStatus))
//Received date time from server
val dateTimeFormatter = DateTimeFormatter.ofPattern("dd-MM-yyyy hh:mm:ss a")
// val dateFormatter = DateTimeFormatter.ofPattern("dd-MM-yyyy")
// val timeFormatter = DateTimeFormatter.ofPattern("hh:mm:ss a")
val instant = Instant.ofEpochMilli(friendReminderDate.toLong())
val instant1 = Instant.ofEpochMilli(friendReminderDate.toLong() - (120 * 60 * 1000))
val date = LocalDateTime.ofInstant(instant, ZoneId.systemDefault())
val date1 = LocalDateTime.ofInstant(instant1, ZoneId.systemDefault())
// val exactDate = dateFormatter.format(date)
// val exactTime = timeFormatter.format(date)
val exactDateTime = dateTimeFormatter.format(date)
val alarmDate = Date(friendReminderDate.toLong())
//Current date time
val dates = Date()
val stringFormat = SimpleDateFormat("dd-MM-yyyy hh:mm:ss a")
val dateTimeTo = stringFormat.format(dates.time)
//Set Alarm
if (alarmDate.after(dates)) {
Log.d("D", dates.toString())
Log.d("AlarmDate", alarmDate.toString())
Log.e("2 hour ago", dateTimeFormatter.format(date1))
println(friendReminderDate.toLong() - (120 * 60 * 1000))
Log.e("Set", exactDateTime)
val alarmManager: AlarmManager = context.getSystemService(
AppCompatActivity.ALARM_SERVICE) as AlarmManager
val alarmIntent = Intent(requireContext(), AlarmReceiver::class.java)
val pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0)
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
Log.e("Alarm", "Alarm")
alarmManager.setAlarmClock(AlarmManager.AlarmClockInfo(friendReminderDate.toLong() - 120*60*1000,
pendingIntent), pendingIntent)
} else {
Log.e("Alarm1", "${friendReminderDate.toLong() - (120 * 60 * 1000)}")
alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,
(friendReminderDate.toLong()) - 120 * 60 * 1000,
pendingIntent)
Log.e("Alarm2", "Alarm")
}
}
// if (exactDateTime > dateTimeTo) {
//
// }
}
}
if (friendReminderFromName != loggedInUser) {
if (friendReminderId != "") {
reminder = FriendsRemindersListModel(0, friendReminderId.toInt(), friendReminderText, friendReminderDate,
friendReminderFromName, friendReminderToName, friendReminderStatus)
}
}
if (getReminderListModel.size.toString() > remindersListModel.size.toString()) {
Log.e("serverListSize", getReminderListModel.size.toString())
Log.e("dbListSize", remindersListModel.size.toString())
Log.e("JsonListSize", jsonArray.length().toString())
for (i in 0 until getReminderListModel.size - 1) {
Log.e("present", getReminderListModel[i].reminderId.toString())
var isPresent = false
for (j in 0 until remindersListModel.size - 1) {
Log.e("present", remindersListModel.toString())
if (remindersListModel.isNotEmpty()) {
if (getReminderListModel[i].reminderId == remindersListModel[i].reminderId) {
isPresent = true
}
}
}
Log.e("presenting", "${!isPresent}")
if (isPresent) {
remindersViewModel.addingReminder(reminder)
}
}
}
else if (getReminderListModel.size.toString() < remindersListModel.size.toString()) {
for (i in 0 until remindersListModel.size - 1) {
for (j in 0 until getReminderListModel.size - 1) {
// var isRemoved = false
// Log.e("i's", i.toString())
Log.e("i's", getReminderListModel.size.toString())
Log.e("i'ss", remindersListModel.size.toString())
if (remindersListModel.isNotEmpty()) {
Log.e("delete3", remindersListModel[i].reminderId.toString())
Log.e("delete3", remindersListModel[i].reminderText)
Log.e("delete4", getReminderListModel[j].reminderId.toString())
Log.e("delete4", getReminderListModel[j].reminderText)
if (remindersListModel[i].reminderId != getReminderListModel[i].reminderId ) {
Log.e("delete2", remindersListModel[i].reminderId.toString())
remindersViewModel.deleteReminder(remindersListModel[i].reminderId)
// getReminderListAdapter.notifyItemRemoved(i)
}
}
}
}
}
// if (getReminderListModel.size.toString() != getRemindersDBList.size.toString()) {
// remindersViewModel.deleteReceivedReminders()
// remindersViewModel.addReminder(getReminderListModel)
// }
if (progressBar!= null) {
progressBar!!.visibility = View.GONE
}
}
}
getReminderHttpRequest.setOnErrorListener {
if (progressBar != null) {
progressBar!!.visibility = View.GONE
}
Log.e("getReminders error", "$it")
Log.e("Alarm1", "${friendReminderDate.toLong() - (120 * 60 * 1000)}")
}
val token = appGlobals.getValueString("userToken")
val headers = HttpHeaders("Authorization", "Token $token")
getReminderHttpRequest.get(AppGlobals.GET_REMINDERS_LIST_API, headers)
}
2。报警接收器class:
class AlarmReceiver: BroadcastReceiver() {
@RequiresApi(Build.VERSION_CODES.O)
@SuppressLint("UnsafeProtectedBroadcastReceiver")
override fun onReceive(context: Context?, intent: Intent?) {
showNotification(context!!, MessagingServiceFirebase.title, MessagingServiceFirebase.body)
Log.e("Checking notify", "Notification")
// Toast.makeText(context, "Alarm", Toast.LENGTH_SHORT).show()
Log.e("Checking ", "Notification")
// ringTone(context)
}
// private fun ringTone(context: Context) {
// val alert: Uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM)
// val ringtone: Ringtone = RingtoneManager.getRingtone(context, alert)
//
// ringtone.play()
// Toast.makeText(context, "Alarm Called", Toast.LENGTH_SHORT).show()
// }
fun showNotification(ctx: Context, title: String, message: String) {
val notificationManager =
ctx.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
val channelId = "channel"
val name: CharSequence = "channel"
val description = "The channel"
val importance = NotificationManager.IMPORTANCE_HIGH
val mChannel = NotificationChannel(channelId, name, importance)
mChannel.description = description
mChannel.enableLights(true)
mChannel.lightColor = Color.RED
mChannel.enableVibration(true)
mChannel.vibrationPattern = longArrayOf(100, 200, 300, 400, 500, 400, 300, 200, 400)
mChannel.setShowBadge(false)
notificationManager.createNotificationChannel(mChannel)
}
val builder: NotificationCompat.Builder = NotificationCompat.Builder(ctx, "channel")
.setSmallIcon(R.drawable.ic_baseline_access_alarm_24)
.setContentTitle(title)
.setContentText(message)
val resultIntent = Intent(ctx, HomeActivity::class.java)
val stackBuilder: TaskStackBuilder = TaskStackBuilder.create(ctx)
stackBuilder.addParentStack(HomeActivity::class.java)
resultIntent.putExtra("NotifyTitle", title)
resultIntent.putExtra("NotifyMessage", message)
stackBuilder.addNextIntent(resultIntent)
val resultPendingIntent: PendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT)
builder.setContentIntent(resultPendingIntent)
builder.setAutoCancel(true)
notificationManager.notify(12, builder.build())
}
}
3。清单代码
<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<receiver
android:name=".AlarmReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
</intent-filter>
</receiver>
你从 JSON 中拉出 date，并在此之前设置了 2 小时的闹钟？那么如果 date 是下午 6 点，您将闹钟设置为下午 4 点？
alarmManager.setExactAndAllowWhileIdle(
AlarmManager.RTC_WAKEUP,
friendReminderDate.toLong()) - 120 * 60 * 1000, // date - 2hrs
pendingIntent)
如果现在是下午 5 点，而您将闹钟设置为下午 4 点，it will still set, and fire immediately:
If the stated trigger time is in the past, the alarm will be triggered immediately. If there is already an alarm for this Intent scheduled (with the equality of two intents being defined by Intent#filterEquals), then it will be removed and replaced by this one.
因此，如果您只想在 now <= alarmTime 时设置闹钟，而在 now > alarmTime 时跳过它，则需要在设置闹钟之前进行检查。
看起来你正试图这样做：
if (alarmDate.after(dates)) {
但 alarmDate 是“日期”，而不是“日期 - 2 小时”（您使用的是下午 6 点而不是下午 4 点）：
val alarmDate = Date(friendReminderDate.toLong())
因此，在这 2 小时内，您总是设置立即触发的警报。您需要改用实际的闹钟时间：
// seriously, just do this calculation once and refer to the variable
val alarmTime = friendReminderDate.toLong() - (120 * 60 * 1000)
val alarmDate = Date(alarmTime)
你有很多日期变量堆积在那里，令人困惑并且很难说出发生了什么 - 这可能就是这个 alarmDate 错误悄悄进入的原因。
此外以防万一，您知道您的“警报接收器”也会在设备启动和首次解锁时触发并显示通知，对吗？
我正在使用 requestj api 从服务器发送和接收数据，并按时设置我从服务器收到的警报和从接收时间起两个小时前的警报呼叫，但问题是当警报时在准确的时间触发它也会在每次 api 调用时触发，直到 2 小时未完成。有谁知道如何预防吗？ 1.API代码在这里
fun getAllFriendsReminders(context: Context) {
val getReminderHttpRequest = HttpRequest()
// val myList = ArrayList<FriendsRemindersListModel>()
getReminderHttpRequest.setOnResponseListener { getReminderListResponse ->
Log.e("getReminders List", getReminderListResponse.code.toString())
Log.e("getReminders List", getReminderListResponse.text)
if (getReminderListResponse.code == HttpResponse.HTTP_OK) {
Log.e("getReminders List", getReminderListResponse.code.toString())
val jsonArray = getReminderListResponse.toJSONArray()
getReminderListModel.clear()
Log.e("list", jsonArray.length().toString())
Log.e("list", jsonArray.toString())
val loggedInUser = appGlobals.getValueString("loginUsername")
for (i in 0 until jsonArray!!.length()) {
if (!onForeGround) {
progressBar!!.progress = i
}
Log.e("listi", i.toString())
val jsonObject = jsonArray.getJSONObject(i)
friendReminderText = jsonObject.getString("reminder")
friendReminderFromName = jsonObject.getString("reminder_from")
friendReminderToName = jsonObject.getString("reminder_to")
friendReminderDate = jsonObject.getString("date")
friendReminderStatus = jsonObject.getString("status")
friendReminderId = jsonObject.getString("id")
if (friendReminderFromName != loggedInUser) {
getReminderListModel.add(FriendsRemindersListModel(0, friendReminderId.toInt(),friendReminderText,
friendReminderDate, friendReminderFromName, friendReminderToName, friendReminderStatus))
//Received date time from server
val dateTimeFormatter = DateTimeFormatter.ofPattern("dd-MM-yyyy hh:mm:ss a")
// val dateFormatter = DateTimeFormatter.ofPattern("dd-MM-yyyy")
// val timeFormatter = DateTimeFormatter.ofPattern("hh:mm:ss a")
val instant = Instant.ofEpochMilli(friendReminderDate.toLong())
val instant1 = Instant.ofEpochMilli(friendReminderDate.toLong() - (120 * 60 * 1000))
val date = LocalDateTime.ofInstant(instant, ZoneId.systemDefault())
val date1 = LocalDateTime.ofInstant(instant1, ZoneId.systemDefault())
// val exactDate = dateFormatter.format(date)
// val exactTime = timeFormatter.format(date)
val exactDateTime = dateTimeFormatter.format(date)
val alarmDate = Date(friendReminderDate.toLong())
//Current date time
val dates = Date()
val stringFormat = SimpleDateFormat("dd-MM-yyyy hh:mm:ss a")
val dateTimeTo = stringFormat.format(dates.time)
//Set Alarm
if (alarmDate.after(dates)) {
Log.d("D", dates.toString())
Log.d("AlarmDate", alarmDate.toString())
Log.e("2 hour ago", dateTimeFormatter.format(date1))
println(friendReminderDate.toLong() - (120 * 60 * 1000))
Log.e("Set", exactDateTime)
val alarmManager: AlarmManager = context.getSystemService(
AppCompatActivity.ALARM_SERVICE) as AlarmManager
val alarmIntent = Intent(requireContext(), AlarmReceiver::class.java)
val pendingIntent = PendingIntent.getBroadcast(context, 0, alarmIntent, 0)
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
Log.e("Alarm", "Alarm")
alarmManager.setAlarmClock(AlarmManager.AlarmClockInfo(friendReminderDate.toLong() - 120*60*1000,
pendingIntent), pendingIntent)
} else {
Log.e("Alarm1", "${friendReminderDate.toLong() - (120 * 60 * 1000)}")
alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,
(friendReminderDate.toLong()) - 120 * 60 * 1000,
pendingIntent)
Log.e("Alarm2", "Alarm")
}
}
// if (exactDateTime > dateTimeTo) {
//
// }
}
}
if (friendReminderFromName != loggedInUser) {
if (friendReminderId != "") {
reminder = FriendsRemindersListModel(0, friendReminderId.toInt(), friendReminderText, friendReminderDate,
friendReminderFromName, friendReminderToName, friendReminderStatus)
}
}
if (getReminderListModel.size.toString() > remindersListModel.size.toString()) {
Log.e("serverListSize", getReminderListModel.size.toString())
Log.e("dbListSize", remindersListModel.size.toString())
Log.e("JsonListSize", jsonArray.length().toString())
for (i in 0 until getReminderListModel.size - 1) {
Log.e("present", getReminderListModel[i].reminderId.toString())
var isPresent = false
for (j in 0 until remindersListModel.size - 1) {
Log.e("present", remindersListModel.toString())
if (remindersListModel.isNotEmpty()) {
if (getReminderListModel[i].reminderId == remindersListModel[i].reminderId) {
isPresent = true
}
}
}
Log.e("presenting", "${!isPresent}")
if (isPresent) {
remindersViewModel.addingReminder(reminder)
}
}
}
else if (getReminderListModel.size.toString() < remindersListModel.size.toString()) {
for (i in 0 until remindersListModel.size - 1) {
for (j in 0 until getReminderListModel.size - 1) {
// var isRemoved = false
// Log.e("i's", i.toString())
Log.e("i's", getReminderListModel.size.toString())
Log.e("i'ss", remindersListModel.size.toString())
if (remindersListModel.isNotEmpty()) {
Log.e("delete3", remindersListModel[i].reminderId.toString())
Log.e("delete3", remindersListModel[i].reminderText)
Log.e("delete4", getReminderListModel[j].reminderId.toString())
Log.e("delete4", getReminderListModel[j].reminderText)
if (remindersListModel[i].reminderId != getReminderListModel[i].reminderId ) {
Log.e("delete2", remindersListModel[i].reminderId.toString())
remindersViewModel.deleteReminder(remindersListModel[i].reminderId)
// getReminderListAdapter.notifyItemRemoved(i)
}
}
}
}
}
// if (getReminderListModel.size.toString() != getRemindersDBList.size.toString()) {
// remindersViewModel.deleteReceivedReminders()
// remindersViewModel.addReminder(getReminderListModel)
// }
if (progressBar!= null) {
progressBar!!.visibility = View.GONE
}
}
}
getReminderHttpRequest.setOnErrorListener {
if (progressBar != null) {
progressBar!!.visibility = View.GONE
}
Log.e("getReminders error", "$it")
Log.e("Alarm1", "${friendReminderDate.toLong() - (120 * 60 * 1000)}")
}
val token = appGlobals.getValueString("userToken")
val headers = HttpHeaders("Authorization", "Token $token")
getReminderHttpRequest.get(AppGlobals.GET_REMINDERS_LIST_API, headers)
}
2。报警接收器class:
class AlarmReceiver: BroadcastReceiver() {
@RequiresApi(Build.VERSION_CODES.O)
@SuppressLint("UnsafeProtectedBroadcastReceiver")
override fun onReceive(context: Context?, intent: Intent?) {
showNotification(context!!, MessagingServiceFirebase.title, MessagingServiceFirebase.body)
Log.e("Checking notify", "Notification")
// Toast.makeText(context, "Alarm", Toast.LENGTH_SHORT).show()
Log.e("Checking ", "Notification")
// ringTone(context)
}
// private fun ringTone(context: Context) {
// val alert: Uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM)
// val ringtone: Ringtone = RingtoneManager.getRingtone(context, alert)
//
// ringtone.play()
// Toast.makeText(context, "Alarm Called", Toast.LENGTH_SHORT).show()
// }
fun showNotification(ctx: Context, title: String, message: String) {
val notificationManager =
ctx.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
val channelId = "channel"
val name: CharSequence = "channel"
val description = "The channel"
val importance = NotificationManager.IMPORTANCE_HIGH
val mChannel = NotificationChannel(channelId, name, importance)
mChannel.description = description
mChannel.enableLights(true)
mChannel.lightColor = Color.RED
mChannel.enableVibration(true)
mChannel.vibrationPattern = longArrayOf(100, 200, 300, 400, 500, 400, 300, 200, 400)
mChannel.setShowBadge(false)
notificationManager.createNotificationChannel(mChannel)
}
val builder: NotificationCompat.Builder = NotificationCompat.Builder(ctx, "channel")
.setSmallIcon(R.drawable.ic_baseline_access_alarm_24)
.setContentTitle(title)
.setContentText(message)
val resultIntent = Intent(ctx, HomeActivity::class.java)
val stackBuilder: TaskStackBuilder = TaskStackBuilder.create(ctx)
stackBuilder.addParentStack(HomeActivity::class.java)
resultIntent.putExtra("NotifyTitle", title)
resultIntent.putExtra("NotifyMessage", message)
stackBuilder.addNextIntent(resultIntent)
val resultPendingIntent: PendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT)
builder.setContentIntent(resultPendingIntent)
builder.setAutoCancel(true)
notificationManager.notify(12, builder.build())
}
}
3。清单代码
<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<receiver
android:name=".AlarmReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
</intent-filter>
</receiver>
你从 JSON 中拉出 date，并在此之前设置了 2 小时的闹钟？那么如果 date 是下午 6 点，您将闹钟设置为下午 4 点？
alarmManager.setExactAndAllowWhileIdle(
AlarmManager.RTC_WAKEUP,
friendReminderDate.toLong()) - 120 * 60 * 1000, // date - 2hrs
pendingIntent)
如果现在是下午 5 点，而您将闹钟设置为下午 4 点，it will still set, and fire immediately:
If the stated trigger time is in the past, the alarm will be triggered immediately. If there is already an alarm for this Intent scheduled (with the equality of two intents being defined by
Intent#filterEquals), then it will be removed and replaced by this one.
因此，如果您只想在 now <= alarmTime 时设置闹钟，而在 now > alarmTime 时跳过它，则需要在设置闹钟之前进行检查。
看起来你正试图这样做：
if (alarmDate.after(dates)) {
但 alarmDate 是“日期”，而不是“日期 - 2 小时”（您使用的是下午 6 点而不是下午 4 点）：
val alarmDate = Date(friendReminderDate.toLong())
因此，在这 2 小时内，您总是设置立即触发的警报。您需要改用实际的闹钟时间：
// seriously, just do this calculation once and refer to the variable
val alarmTime = friendReminderDate.toLong() - (120 * 60 * 1000)
val alarmDate = Date(alarmTime)
你有很多日期变量堆积在那里，令人困惑并且很难说出发生了什么 - 这可能就是这个 alarmDate 错误悄悄进入的原因。
此外以防万一，您知道您的“警报接收器”也会在设备启动和首次解锁时触发并显示通知，对吗？