set the timer to 5 minutes by default

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

@@ -6,14 +6,19 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import com.simplemobiletools.clock.R
+import com.simplemobiletools.clock.extensions.config
+import com.simplemobiletools.commons.extensions.getFormattedDuration
 import com.simplemobiletools.commons.extensions.updateTextColors
-import kotlinx.android.synthetic.main.fragment_timer.*
+import kotlinx.android.synthetic.main.fragment_timer.view.*
 
 class TimerFragment : Fragment() {
     lateinit var view: ViewGroup
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
-        view = inflater.inflate(R.layout.fragment_timer, container, false) as ViewGroup
+        view = (inflater.inflate(R.layout.fragment_timer, container, false) as ViewGroup).apply {
+            timer_time.text = context!!.config.lastTimerSeconds.getFormattedDuration()
+        }
+
         return view
     }
 
@@ -26,6 +31,7 @@ class TimerFragment : Fragment() {
         view.apply {
             context!!.updateTextColors(timer_fragment)
         }
+        setupTimer()
     }
 
     private fun setupTimer() {

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

@@ -23,4 +23,8 @@ class Config(context: Context) : BaseConfig(context) {
     var editedTimeZoneTitles: Set<String>
         get() = prefs.getStringSet(EDITED_TIME_ZONE_TITLES, HashSet())
         set(editedTimeZoneTitles) = prefs.edit().putStringSet(EDITED_TIME_ZONE_TITLES, editedTimeZoneTitles).apply()
+
+    var lastTimerSeconds: Int
+        get() = prefs.getInt(LAST_TIMER_SECONDS, 300)
+        set(lastTimerSeconds) = prefs.edit().putInt(LAST_TIMER_SECONDS, lastTimerSeconds).apply()
 }

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

@@ -7,6 +7,7 @@ const val SHOW_SECONDS = "show_seconds"
 const val DISPLAY_OTHER_TIME_ZONES = "display_other_time_zones"
 const val SELECTED_TIME_ZONES = "selected_time_zones"
 const val EDITED_TIME_ZONE_TITLES = "edited_time_zone_titles"
+const val LAST_TIMER_SECONDS = "last_timer_seconds"
 
 const val TABS_COUNT = 4
 const val EDITED_TIME_ZONE_SEPARATOR = ":"

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

@@ -1,8 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
 <android.support.design.widget.CoordinatorLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/timer_fragment"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <com.simplemobiletools.commons.views.MyTextView
+        android:id="@+id/timer_time"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/normal_margin"
+        android:background="?attr/selectableItemBackground"
+        android:gravity="center_horizontal"
+        android:padding="@dimen/small_margin"
+        android:textSize="@dimen/stopwatch_text_size"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="00:00"/>
+
 </android.support.design.widget.CoordinatorLayout>