properly handle adding a new alarmsound from edit alarm dialog too

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

@@ -61,7 +61,7 @@ class MainActivity : SimpleActivity() {
 
         val configTextColor = config.textColor
         if (storedTextColor != configTextColor) {
-            getInactiveTabIndexes(viewpager.currentItem).forEach {
+            getInactiveTabIndexes(view_pager.currentItem).forEach {
                 main_tabs_holder.getTabAt(it)?.icon?.applyColorFilter(configTextColor)
             }
         }
@@ -74,7 +74,7 @@ class MainActivity : SimpleActivity() {
         val configPrimaryColor = config.primaryColor
         if (storedPrimaryColor != configPrimaryColor) {
             main_tabs_holder.setSelectedTabIndicatorColor(getAdjustedPrimaryColor())
-            main_tabs_holder.getTabAt(viewpager.currentItem)?.icon?.applyColorFilter(getAdjustedPrimaryColor())
+            main_tabs_holder.getTabAt(view_pager.currentItem)?.icon?.applyColorFilter(getAdjustedPrimaryColor())
         }
 
         if (config.preventPhoneFromSleeping) {
@@ -92,7 +92,7 @@ class MainActivity : SimpleActivity() {
 
     override fun onDestroy() {
         super.onDestroy()
-        config.lastUsedViewPagerPage = viewpager.currentItem
+        config.lastUsedViewPagerPage = view_pager.currentItem
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
@@ -111,7 +111,7 @@ class MainActivity : SimpleActivity() {
 
     override fun onNewIntent(intent: Intent) {
         if (intent.extras?.containsKey(OPEN_TAB) == true) {
-            viewpager.setCurrentItem(intent.getIntExtra(OPEN_TAB, TAB_CLOCK), false)
+            view_pager.setCurrentItem(intent.getIntExtra(OPEN_TAB, TAB_CLOCK), false)
         }
     }
 
@@ -153,27 +153,30 @@ class MainActivity : SimpleActivity() {
             contentResolver.takePersistableUriPermission(uri, takeFlags)
         }
 
-        when (viewpager.currentItem) {
-            TAB_TIMER -> (viewpager.adapter as? ViewPagerAdapter)?.updateTimerAlarmSound(newAlarmSound)
+        when (view_pager.currentItem) {
+            TAB_ALARM -> getViewPagerAdapter()?.updateAlarmTabAlarmSound(newAlarmSound)
+            TAB_TIMER -> getViewPagerAdapter()?.updateTimerTabAlarmSound(newAlarmSound)
         }
     }
 
+    private fun getViewPagerAdapter() = view_pager.adapter as? ViewPagerAdapter
+
     private fun initFragments() {
-        viewpager.adapter = ViewPagerAdapter(supportFragmentManager)
-        viewpager.onPageChangeListener {
+        view_pager.adapter = ViewPagerAdapter(supportFragmentManager)
+        view_pager.onPageChangeListener {
             main_tabs_holder.getTabAt(it)?.select()
         }
 
         val tabToOpen = intent.getIntExtra(OPEN_TAB, config.lastUsedViewPagerPage)
         intent.removeExtra(OPEN_TAB)
-        viewpager.currentItem = tabToOpen
-        viewpager.offscreenPageLimit = TABS_COUNT - 1
+        view_pager.currentItem = tabToOpen
+        view_pager.offscreenPageLimit = TABS_COUNT - 1
         main_tabs_holder.onTabSelectionChanged(
                 tabUnselectedAction = {
                     it.icon?.applyColorFilter(config.textColor)
                 },
                 tabSelectedAction = {
-                    viewpager.currentItem = it.position
+                    view_pager.currentItem = it.position
                     it.icon?.applyColorFilter(getAdjustedPrimaryColor())
                 }
         )

app/src/main/kotlin/com/simplemobiletools/clock/adapters/ViewPagerAdapter.kt

@@ -9,6 +9,7 @@ import com.simplemobiletools.clock.fragments.ClockFragment
 import com.simplemobiletools.clock.fragments.StopwatchFragment
 import com.simplemobiletools.clock.fragments.TimerFragment
 import com.simplemobiletools.clock.helpers.TABS_COUNT
+import com.simplemobiletools.clock.helpers.TAB_ALARM
 import com.simplemobiletools.clock.helpers.TAB_TIMER
 import com.simplemobiletools.clock.models.AlarmSound
 
@@ -36,7 +37,11 @@ class ViewPagerAdapter(fm: FragmentManager) : FragmentStatePagerAdapter(fm) {
         else -> throw RuntimeException("Trying to fetch unknown fragment id $position")
     }
 
-    fun updateTimerAlarmSound(alarmSound: AlarmSound) {
+    fun updateAlarmTabAlarmSound(alarmSound: AlarmSound) {
+        (fragments[TAB_ALARM] as AlarmFragment).updateAlarmSound(alarmSound)
+    }
+
+    fun updateTimerTabAlarmSound(alarmSound: AlarmSound) {
         (fragments[TAB_TIMER] as TimerFragment).updateAlarmSound(alarmSound)
     }
 }

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

@@ -12,6 +12,7 @@ import com.simplemobiletools.clock.extensions.config
 import com.simplemobiletools.clock.extensions.dbHelper
 import com.simplemobiletools.clock.extensions.getFormattedTime
 import com.simplemobiletools.clock.models.Alarm
+import com.simplemobiletools.clock.models.AlarmSound
 import com.simplemobiletools.commons.extensions.*
 import kotlinx.android.synthetic.main.dialog_edit_alarm.view.*
 
@@ -32,9 +33,7 @@ class EditAlarmDialog(val activity: SimpleActivity, val alarm: Alarm, val callba
             edit_alarm_sound.setOnClickListener {
                 SelectAlarmSoundDialog(activity, alarm.soundUri, AudioManager.STREAM_ALARM) {
                     if (it != null) {
-                        alarm.soundTitle = it.title
-                        alarm.soundUri = it.uri
-                        edit_alarm_sound.text = it.title
+                        alarmSoundUpdated(it)
                     }
                 }
             }
@@ -123,4 +122,14 @@ class EditAlarmDialog(val activity: SimpleActivity, val alarm: Alarm, val callba
         drawable.applyColorFilter(textColor)
         return drawable
     }
+
+    private fun alarmSoundUpdated(alarmSound: AlarmSound) {
+        alarm.soundTitle = alarmSound.title
+        alarm.soundUri = alarmSound.uri
+        view.edit_alarm_sound.text = alarmSound.title
+    }
+
+    fun updateSelectedAlarmSound(alarmSound: AlarmSound) {
+        alarmSoundUpdated(alarmSound)
+    }
 }

app/src/main/kotlin/com/simplemobiletools/clock/fragments/AlarmFragment.kt

@@ -13,6 +13,7 @@ import com.simplemobiletools.clock.extensions.*
 import com.simplemobiletools.clock.helpers.DEFAULT_ALARM_MINUTES
 import com.simplemobiletools.clock.interfaces.ToggleAlarmInterface
 import com.simplemobiletools.clock.models.Alarm
+import com.simplemobiletools.clock.models.AlarmSound
 import com.simplemobiletools.commons.extensions.toast
 import com.simplemobiletools.commons.extensions.updateTextColors
 import kotlinx.android.synthetic.main.fragment_alarm.view.*
@@ -20,6 +21,7 @@ import java.util.*
 
 class AlarmFragment : Fragment(), ToggleAlarmInterface {
     private var alarms = ArrayList<Alarm>()
+    private var currentEditAlarmDialog: EditAlarmDialog? = null
 
     private var storedTextColor = 0
 
@@ -79,10 +81,12 @@ class AlarmFragment : Fragment(), ToggleAlarmInterface {
     }
 
     private fun openEditAlarm(alarm: Alarm) {
-        EditAlarmDialog(activity as SimpleActivity, alarm) {
+        currentEditAlarmDialog = EditAlarmDialog(activity as SimpleActivity, alarm) {
+            currentEditAlarmDialog = null
             setupAlarms()
             checkAlarmState(alarm)
         }
+
     }
 
     override fun alarmToggled(id: Int, isEnabled: Boolean) {
@@ -103,4 +107,8 @@ class AlarmFragment : Fragment(), ToggleAlarmInterface {
             context!!.cancelAlarmClock(alarm)
         }
     }
+
+    fun updateAlarmSound(alarmSound: AlarmSound) {
+        currentEditAlarmDialog?.updateSelectedAlarmSound(alarmSound)
+    }
 }

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

@@ -42,7 +42,7 @@
     </android.support.design.widget.TabLayout>
 
     <com.booking.rtlviewpager.RtlViewPager
-        android:id="@+id/viewpager"
+        android:id="@+id/view_pager"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_below="@+id/main_tabs_holder"/>