implement the intent for picking audio file as an alarm sound

app/build.gradle

@@ -45,6 +45,7 @@ dependencies {
     implementation 'com.facebook.stetho:stetho:1.5.0'
     implementation 'com.android.support.constraint:constraint-layout:1.0.2'
     implementation 'com.shawnlin:number-picker:2.4.6'
+    implementation 'com.google.code.gson:gson:2.8.2'
 }
 
 Properties props = new Properties()

app/src/main/kotlin/com/simplemobiletools/clock/activities/MainActivity.kt

@@ -2,10 +2,13 @@ package com.simplemobiletools.clock.activities
 
 import android.content.Intent
 import android.graphics.drawable.ColorDrawable
+import android.net.Uri
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import android.view.WindowManager
+import com.google.gson.Gson
+import com.google.gson.reflect.TypeToken
 import com.simplemobiletools.clock.BuildConfig
 import com.simplemobiletools.clock.R
 import com.simplemobiletools.clock.adapters.ViewPagerAdapter
@@ -13,14 +16,14 @@ import com.simplemobiletools.clock.extensions.config
 import com.simplemobiletools.clock.extensions.dbHelper
 import com.simplemobiletools.clock.extensions.getNextAlarm
 import com.simplemobiletools.clock.extensions.rescheduleEnabledAlarms
-import com.simplemobiletools.clock.helpers.OPEN_TAB
-import com.simplemobiletools.clock.helpers.TABS_COUNT
-import com.simplemobiletools.clock.helpers.TAB_CLOCK
+import com.simplemobiletools.clock.helpers.*
+import com.simplemobiletools.clock.models.AlarmSound
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.LICENSE_NUMBER_PICKER
 import com.simplemobiletools.commons.helpers.LICENSE_STETHO
 import com.simplemobiletools.commons.models.FAQItem
 import kotlinx.android.synthetic.main.activity_main.*
+import java.util.*
 
 class MainActivity : SimpleActivity() {
     private var storedUseEnglish = false
@@ -118,6 +121,26 @@ class MainActivity : SimpleActivity() {
         }
     }
 
+    override fun onActivityResult(requestCode: Int, resultCode: Int, resultData: Intent?) {
+        super.onActivityResult(requestCode, resultCode, resultData)
+        if (requestCode == PICK_AUDIO_FILE_INTENT_ID && resultCode == RESULT_OK && resultData != null) {
+            storeNewAlarmSound(resultData.data)
+        }
+    }
+
+    private fun storeNewAlarmSound(uri: Uri) {
+        var filename = getFilenameFromUri(uri)
+        if (filename.isEmpty()) {
+            filename = getString(R.string.alarm)
+        }
+
+        val token = object : TypeToken<LinkedHashSet<AlarmSound>>() {}.type
+        val yourAlarmSounds = Gson().fromJson<LinkedHashSet<AlarmSound>>(config.yourAlarmSounds, token) ?: LinkedHashSet()
+        val newAlarmSoundId = (yourAlarmSounds.maxBy { it.id }?.id ?: YOUR_ALARM_SOUNDS_MIN_ID)
+        yourAlarmSounds.add(AlarmSound(newAlarmSoundId, filename, uri.toString()))
+        config.yourAlarmSounds = Gson().toJson(yourAlarmSounds)
+    }
+
     private fun initFragments() {
         viewpager.adapter = ViewPagerAdapter(supportFragmentManager)
         viewpager.onPageChangeListener {

app/src/main/kotlin/com/simplemobiletools/clock/dialogs/SelectAlarmSoundDialog.kt

@@ -1,5 +1,6 @@
 package com.simplemobiletools.clock.dialogs
 
+import android.content.Intent
 import android.media.MediaPlayer
 import android.net.Uri
 import android.support.v7.app.AlertDialog
@@ -9,6 +10,7 @@ import com.simplemobiletools.clock.R
 import com.simplemobiletools.clock.activities.SimpleActivity
 import com.simplemobiletools.clock.extensions.config
 import com.simplemobiletools.clock.extensions.getAlarmSounds
+import com.simplemobiletools.clock.helpers.PICK_AUDIO_FILE_INTENT_ID
 import com.simplemobiletools.clock.models.AlarmSound
 import com.simplemobiletools.commons.extensions.getAdjustedPrimaryColor
 import com.simplemobiletools.commons.extensions.setupDialogStuff
@@ -23,6 +25,7 @@ class SelectAlarmSoundDialog(val activity: SimpleActivity, val currentUri: Strin
     private var alarmSounds = ArrayList<AlarmSound>()
     private var mediaPlayer = MediaPlayer()
     private val config = activity.config
+    private val dialog: AlertDialog
 
     init {
         activity.getAlarmSounds {
@@ -36,7 +39,7 @@ class SelectAlarmSoundDialog(val activity: SimpleActivity, val currentUri: Strin
         val newAlarmSound = AlarmSound(ADD_NEW_SOUND_ID, activity.getString(R.string.add_new_sound), "")
         addAlarmSound(newAlarmSound, view.dialog_select_alarm_your_radio)
 
-        AlertDialog.Builder(activity)
+        dialog = AlertDialog.Builder(activity)
                 .setOnDismissListener { mediaPlayer.stop() }
                 .setPositiveButton(R.string.ok, { dialog, which -> dialogConfirmed() })
                 .setNegativeButton(R.string.cancel, null)
@@ -68,7 +71,11 @@ class SelectAlarmSoundDialog(val activity: SimpleActivity, val currentUri: Strin
 
     private fun alarmClicked(alarmSound: AlarmSound) {
         if (alarmSound.id == ADD_NEW_SOUND_ID) {
-
+            Intent(Intent.ACTION_GET_CONTENT).apply {
+                type = "audio/*"
+                activity.startActivityForResult(this, PICK_AUDIO_FILE_INTENT_ID)
+            }
+            dialog.dismiss()
         } else {
             try {
                 mediaPlayer.stop()

app/src/main/kotlin/com/simplemobiletools/clock/helpers/Config.kt

@@ -49,4 +49,8 @@ class Config(context: Context) : BaseConfig(context) {
     var useTextShadow: Boolean
         get() = prefs.getBoolean(USE_TEXT_SHADOW, true)
         set(useTextShadow) = prefs.edit().putBoolean(USE_TEXT_SHADOW, useTextShadow).apply()
+
+    var yourAlarmSounds: String
+        get() = prefs.getString(YOUR_ALARM_SOUNDS, "")
+        set(yourAlarmSounds) = prefs.edit().putString(YOUR_ALARM_SOUNDS, yourAlarmSounds).apply()
 }

app/src/main/kotlin/com/simplemobiletools/clock/helpers/Constants.kt

@@ -14,6 +14,7 @@ const val TIMER_SOUND_TITLE = "timer_sound_title"
 const val TIMER_MAX_REMINDER_SECS = "timer_max_reminder_secs"
 const val ALARM_MAX_REMINDER_SECS = "alarm_max_reminder_secs"
 const val USE_TEXT_SHADOW = "use_text_shadow"
+const val YOUR_ALARM_SOUNDS = "your_alarm_sounds"
 
 const val TABS_COUNT = 4
 const val EDITED_TIME_ZONE_SEPARATOR = ":"
@@ -23,7 +24,9 @@ const val DAY_MINUTES = 1440
 const val DEFAULT_MAX_ALARM_REMINDER_SECS = 300
 const val DEFAULT_MAX_TIMER_REMINDER_SECS = 60
 const val HIDE_REMINDER_ACTIVITY = "hide_reminder_activity"
+const val YOUR_ALARM_SOUNDS_MIN_ID = 1000
 
+const val PICK_AUDIO_FILE_INTENT_ID = 9994
 const val REMINDER_ACTIVITY_INTENT_ID = 9995
 const val OPEN_ALARMS_TAB_INTENT_ID = 9996
 const val UPDATE_WIDGET_INTENT_ID = 9997

app/src/main/res/layout/dialog_select_alarm_sound.xml

@@ -32,7 +32,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:paddingLeft="@dimen/bigger_margin"
-            android:paddingTop="@dimen/bigger_margin"
+            android:paddingTop="@dimen/medium_margin"
             android:text="@string/system_sounds"/>
 
         <RadioGroup