如何保存共享偏好的通知？

Question

我有一个通知（带有广播接收器）、警报管理器和一个计时员。一切都运行良好，但我想将时间争吵者提供的时间保存到共享偏好中，因此当用户从时间争吵者中选择时间时，它将始终在那个时候发送通知。但在此之前，我想设置一个默认时间（在该默认时间向用户发送通知，直到用户通过时间争吵者将其更改为所选时间）并将其保存到共享偏好中的相同键。

所以我想要的是：

1. 将默认时间保存到共享首选项，以便每天在默认时间通知用户。
2. 将用户从时间选择器中选择的时间保存到与 #1 相同的键，因此它将成为默认时间。

我不知道如何将共享首选项与警报管理器一起使用，因此我们将不胜感激...

PC可以只使用 Java 和 Koltin

Android Manifast.xml

        <receiver android:name=".AthanBrodcasts.fajrBroadcastReceiver"/>

我的广播接收器

class fajrBroadcastReceiver : BroadcastReceiver() {

val CHANNEL_ID = "أذان الفجر"

override fun onReceive(context: Context?, intent: Intent?) {

    val intent = Intent(context, MainActivity::class.java).apply {
        flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
    }
    val pendingIntent : PendingIntent = PendingIntent.getActivity(context,0,intent,0)

    val builder = NotificationCompat.Builder(context!!, CHANNEL_ID)
        .setSmallIcon(R.drawable.ic_fajr_icon)
        .setContentTitle("صلاة الفجر قد حلت")
        .setContentText("بسم الله الرحمن الرحيم")
        .setPriority(NotificationCompat.PRIORITY_HIGH)
        .setDefaults(NotificationCompat.DEFAULT_ALL)
        .setContentIntent(pendingIntent)
        .setAutoCancel(true)

    with(NotificationManagerCompat.from(context)) {
        notify(123, builder.build())
    }

}
}

我的设置活动

private lateinit var picker : MaterialTimePicker
private lateinit var calender : Calendar

val CHANNEL_ID = "أذان الفجر"

private lateinit var alarmManager: AlarmManager
private lateinit var pendingIntent: PendingIntent

fajrEditTxt.setOnClickListener {
        showTimePicker()
    }
    fajrSalah.setOnCheckedChangeListener { buttonView, isChecked ->

        if (isChecked){

        }else{

        }
    }
private fun showTimePicker(){
    val  fajrtime = getSharedPreferences("saveSettingData", Context.MODE_PRIVATE)
    picker = MaterialTimePicker.Builder()
        .setTimeFormat(TimeFormat.CLOCK_12H)
        .setHour(fajrtime.getInt("fajrTimeHour", 0)) // I took it from a library I use
        .setMinute(fajrtime.getInt("fajrTimeMinutes",0)) // I took it from a library I use
        .setTitleText("حدد الموعد الذي تريدة")
        .build()

    picker.show(supportFragmentManager, "AdhanNotifacations")

    picker.addOnPositiveButtonClickListener {

        if(picker.hour > 12){

            fajrEditTxt.setHint(String.format("%02d",picker.hour - 12) + ":"
                    + String.format("%02d", picker.minute) + " PM")
        }else{
            fajrEditTxt.setHint(String.format("%02d",picker.hour) + ":"
                    + String.format("%02d", picker.minute) + " AM")
        }


        calender = Calendar.getInstance()
        calender[Calendar.HOUR_OF_DAY] = picker.hour
        calender[Calendar.MINUTE] = picker.minute
        calender[Calendar.SECOND] = 0
        calender[Calendar.MILLISECOND] = 0

        alarmFajr()

    }
}

private fun createNotificationChannel(){
    val channelName = "مؤذن الفجر"
    val DESCRIPTION_TEXT = "أشعار لأذان الفجر"
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
        val name = channelName
        val description_text = DESCRIPTION_TEXT
        val importance = NotificationManager.IMPORTANCE_HIGH
        val channel = NotificationChannel(CHANNEL_ID, name, importance).apply {
            description = description_text
        }

        val notificationManager: NotificationManager =
            getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        notificationManager.createNotificationChannel(channel)
    }

}
fun alarmFajr(){
    alarmManager = getSystemService(ALARM_SERVICE) as AlarmManager
    val i = Intent(this, fajrBroadcastReceiver::class.java)

    pendingIntent = PendingIntent.getBroadcast(this, 0, i,0)

    alarmManager.setInexactRepeating(
        AlarmManager.RTC_WAKEUP, calender.timeInMillis,
        AlarmManager.INTERVAL_DAY, pendingIntent
    )
}

Answer 1

以下是有关如何在共享首选项中写入数据的示例字节代码：

// Storing data into SharedPreferences
SharedPreferences sharedPreferences = getSharedPreferences("MySharedPref",MODE_PRIVATE);
 
// Creating an Editor object to edit(write to the file)
SharedPreferences.Editor myEdit = sharedPreferences.edit();
 
// Storing the key and its value as the data fetched from edittext
myEdit.putString("name", name.getText().toString());
myEdit.putInt("age", Integer.parseInt(age.getText().toString()));
 
// Once the changes have been made,
// we need to commit to apply those changes made,
// otherwise, it will throw an error
myEdit.commit();

以下是有关如何读取共享首选项中的数据的示例字节码：

 // Retrieving the value using its keys the file name
// must be same in both saving and retrieving the data
SharedPreferences sh = getSharedPreferences("MySharedPref", MODE_APPEND);
 
// The value will be default as empty string because for
// the very first time when the app is opened, there is nothing to show
String s1 = sh.getString("name", "");
int a = sh.getInt("age", 0);
 
// We can then use the data
name.setText(s1);
age.setText(String.valueOf(a));