DateUtils: make duration rounded up to minutes

Make the UI more flexible and
slightly easier to understand.

app/src/main/java/it/danieleverducci/lunatracker/MainActivity.kt

@@ -148,19 +148,23 @@ class MainActivity : AppCompatActivity() {
         val eventTypeStats = mutableMapOf<LunaEvent.Type, Int>()
 
         if (dynamicMenu) {
-            val sampleSize = 100
-            // populate frequency map from first 100 events
-            allEvents.take(sampleSize.coerceAtMost(allEvents.size)).forEach {
+            // populate frequency map from all events of the last two weeks
+            val lastWeekTime = (System.currentTimeMillis() / 1000) - (14 * 24 * 60 * 60)
+            allEvents.forEach {
+                if (it.time > lastWeekTime) {
                     eventTypeStats[it.type] = 1 + (eventTypeStats[it.type] ?: 0)
                 }
             }
+        }
 
         // sort all event types by frequency and ordinal
         val eventTypesSorted = LunaEvent.Type.entries.toList().sortedWith(
             compareBy({ -1 * (eventTypeStats[it] ?: 0) }, { it.ordinal })
         ).filter { it != LunaEvent.Type.UNKNOWN }
 
-        fun setupMenu(maxButtonCount: Int, sortedEventTypes: List<LunaEvent.Type>): Int {
+        val usedEventCount = eventTypeStats.count { it.value > 0 }
+        val maxButtonCount = if (dynamicMenu) { usedEventCount } else { 7 }
+
         val row1 = findViewById<View>(R.id.linear_layout_row1)
         val row1Button1 = findViewById<TextView>(R.id.button1_row1)
         val row1Button2 = findViewById<TextView>(R.id.button2_row1)
@@ -186,7 +190,7 @@ class MainActivity : AppCompatActivity() {
 
         fun show(vararg tvs: TextView) {
             for (tv in tvs) {
-                    val type = sortedEventTypes[showCounter]
+                val type = eventTypesSorted[showCounter]
                 tv.text = LunaEvent.getHeaderEmoji(applicationContext, type)
                 tv.setOnClickListener { showCreateDialog(type) }
                 tv.visibility = View.VISIBLE
@@ -205,15 +209,8 @@ class MainActivity : AppCompatActivity() {
             else -> show(row1Button1, row1Button2, row2Button1, row2Button2, row2Button3, row3Button1, row3Button2)
         }
 
-            return showCounter
-        }
-
-        val usedEventCount = eventTypeStats.count { it.value > 0 }
-        val maxButtonCount = if (dynamicMenu) { usedEventCount } else { 7 }
-        val eventsShown = setupMenu(maxButtonCount, eventTypesSorted)
-
         // store left over events for popup menu
-        currentPopupItems = eventTypesSorted.subList(eventsShown, eventTypesSorted.size)
+        currentPopupItems = eventTypesSorted.subList(showCounter, eventTypesSorted.size)
     }
 
     override fun onStart() {
@@ -276,7 +273,7 @@ class MainActivity : AppCompatActivity() {
         numberPicker.value = event.quantity / 10
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -314,7 +311,7 @@ class MainActivity : AppCompatActivity() {
         weightET.setText(event.quantity.toString())
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -365,7 +362,7 @@ class MainActivity : AppCompatActivity() {
         }
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -389,7 +386,8 @@ class MainActivity : AppCompatActivity() {
         alertDialog.show()
     }
 
-    fun datePickerHelper(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
+    // Pick a date/time.
+    fun dateTimePicker(time: Long, dateTextView: TextView, onChange: (Long) -> Unit = {}): Calendar {
         dateTextView.text = DateUtils.formatDateTime(time)
 
         val dateTime = Calendar.getInstance()
@@ -420,97 +418,122 @@ class MainActivity : AppCompatActivity() {
         return dateTime
     }
 
-    fun saveEvent(event: LunaEvent) {
-        if (!allEvents.contains(event)) {
-            // new event
-            logEvent(event)
+    fun addDurationEvent(event: LunaEvent) {
+        askDurationEvent(event, true) { saveEvent(event) }
     }
 
-        logbook?.sort()
-        recyclerView.adapter?.notifyDataSetChanged()
-        saveLogbook()
-    }
-
-    fun addSleepEvent(event: LunaEvent) {
-        askSleepValue(event, true) { saveEvent(event) }
-    }
-
-    fun askSleepValue(event: LunaEvent, hideDurationButtons: Boolean, onPositive: () -> Unit) {
+    fun askDurationEvent(event: LunaEvent, showTime: Boolean, onPositive: () -> Unit) {
         val d = AlertDialog.Builder(this)
         val dialogView = layoutInflater.inflate(R.layout.dialog_edit_duration, null)
         d.setTitle(event.getDialogTitle(this))
-        d.setMessage(event.getDialogMessage(this))
         d.setView(dialogView)
 
         val durationTextView = dialogView.findViewById<TextView>(R.id.dialog_date_duration)
-        val datePicker = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
+        val datePickerBegin = dialogView.findViewById<TextView>(R.id.dialog_date_picker_begin)
+        val datePickerEnd = dialogView.findViewById<TextView>(R.id.dialog_date_picker_end)
+        val dateDelimiter = dialogView.findViewById<TextView>(R.id.dialog_date_range_delimiter)
         val durationButtons = dialogView.findViewById<LinearLayout>(R.id.duration_buttons)
         val durationNowButton = dialogView.findViewById<Button>(R.id.dialog_date_duration_now)
+        val durationClearButton = dialogView.findViewById<Button>(R.id.dialog_date_duration_clear)
         val durationMinus5Button = dialogView.findViewById<Button>(R.id.dialog_date_duration_minus5)
         val durationPlus5Button = dialogView.findViewById<Button>(R.id.dialog_date_duration_plus5)
 
         val currentDurationTextColor = durationTextView.currentTextColor
         val invalidDurationTextColor = ContextCompat.getColor(this, R.color.danger)
 
-        var duration = event.quantity
+        // in seconds
+        var durationStart = event.getStartTime()
+        var durationEnd = event.getEndTime()
 
-        fun isValidTime(timeSeconds: Long, durationSeconds: Int): Boolean {
+        fun isValidTime(timeUnix: Long): Boolean {
             val now = System.currentTimeMillis() / 1000
-            return (timeSeconds + durationSeconds) <= now && durationSeconds < (24 * 60 * 60)
+            return timeUnix in 1..now
         }
 
-        val onDateChange = { time: Long ->
-            durationTextView.setTextColor(currentDurationTextColor)
+        fun isValidTimeSpan(timeBeginUnix: Long, timeEndUnix: Long): Boolean {
+            return (timeBeginUnix <= timeEndUnix) && (timeEndUnix - timeBeginUnix) < (24 * 60 * 60)
+        }
 
-            if (duration == 0) {
-                // baby is sleeping
+        fun updateFields() {
+            datePickerBegin.text = DateUtils.formatDateTime(durationStart)
+            datePickerEnd.text = DateUtils.formatDateTime(durationEnd)
+
+            durationTextView.setTextColor(currentDurationTextColor)
+            val duration = durationEnd - durationStart
+            if (duration == 0L) {
+                // event is ongoing
                 durationTextView.text = "💤"
+                dateDelimiter.visibility = View.GONE
+                datePickerEnd.visibility = View.GONE
             } else {
-                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration.toLong())
-                if (!isValidTime(time, duration)) {
+                durationTextView.text = DateUtils.formatTimeDuration(applicationContext, duration)
+                if (!isValidTimeSpan(durationStart, durationEnd)) {
                     durationTextView.setTextColor(invalidDurationTextColor)
                 }
-            }
+                dateDelimiter.visibility = View.VISIBLE
+                datePickerEnd.visibility = View.VISIBLE
             }
 
-        val pickedDateTime = datePickerHelper(event.time, datePicker, onDateChange)
+            datePickerBegin.setTextColor(if (isValidTime(durationStart)) { currentDurationTextColor } else { invalidDurationTextColor })
+            datePickerEnd.setTextColor(if (isValidTime(durationEnd)) { currentDurationTextColor } else { invalidDurationTextColor })
+        }
 
-        onDateChange(pickedDateTime.time.time / 1000)
+        val pickedDateTimeBegin = dateTimePicker(event.time, datePickerBegin) { pickedTime: Long ->
+            durationStart = pickedTime
+            if (datePickerEnd.visibility == View.GONE) {
+                durationEnd = pickedTime
+            }
+            updateFields()
+        }
 
-        if (hideDurationButtons) {
+        val pickedDateTimeEnd = dateTimePicker(event.time + event.quantity, datePickerEnd) { pickedTime: Long ->
+            durationEnd = pickedTime
+            updateFields()
+        }
+
+        if (showTime) {
+            dateDelimiter.visibility = View.GONE
+            datePickerEnd.visibility = View.GONE
+            durationTextView.visibility = View.GONE
             durationButtons.visibility = View.GONE
-            d.setMessage(getString(R.string.log_sleep_dialog_description_start))
+            //d.setMessage("")
         } else {
+            dateDelimiter.visibility = View.VISIBLE
+            datePickerEnd.visibility = View.VISIBLE
+            durationTextView.visibility = View.VISIBLE
             durationButtons.visibility = View.VISIBLE
             d.setMessage(event.getDialogMessage(this))
-
-            fun adjust(minutes: Int) {
-                duration += minutes * 60
-                if (duration < 0) {
-                    duration = 0
-                }
-                onDateChange(pickedDateTime.time.time / 1000)
         }
 
-            durationMinus5Button.setOnClickListener { adjust(-5) }
-            durationPlus5Button.setOnClickListener { adjust(5) }
+        durationStart = pickedDateTimeBegin.time.time / 1000
+        durationEnd = pickedDateTimeEnd.time.time / 1000
+
+        updateFields()
+
+        durationMinus5Button.setOnClickListener {
+            durationEnd = (durationEnd - 300).coerceAtLeast(durationStart)
+            updateFields()
+        }
+
+        durationPlus5Button.setOnClickListener {
+            durationEnd = (durationEnd + 300).coerceAtLeast(durationStart)
+            updateFields()
+        }
+
+        durationClearButton.setOnClickListener {
+            durationEnd = durationStart
+            updateFields()
+        }
 
         durationNowButton.setOnClickListener {
-                val now = System.currentTimeMillis() / 1000
-                val start = pickedDateTime.time.time / 1000
-                if (now > start) {
-                    duration = (now - start).toInt()
-                    duration -= duration % 60 // prevent printing of seconds
-                    onDateChange(pickedDateTime.time.time / 1000)
-                }
-            }
+            durationEnd = System.currentTimeMillis() / 1000
+            updateFields()
         }
 
         d.setPositiveButton(android.R.string.ok) { dialogInterface, i ->
-            val time = pickedDateTime.time.time / 1000
-            if (isValidTime(time, duration)) {
-                event.time = time
-                event.quantity = duration
+            if (isValidTime(durationStart) && isValidTime(durationEnd) && isValidTimeSpan(durationStart, durationEnd)) {
+                event.time = durationStart
+                event.quantity = (durationEnd - durationStart).toInt()
                 onPositive()
             } else {
                 Toast.makeText(this, R.string.toast_date_error, Toast.LENGTH_SHORT).show()
@@ -548,7 +571,7 @@ class MainActivity : AppCompatActivity() {
         spinner.setSelection(event.quantity.coerceIn(0, spinner.count - 1))
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -581,7 +604,7 @@ class MainActivity : AppCompatActivity() {
         d.setView(dialogView)
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedDateTime = datePickerHelper(event.time, dateTV)
+        val pickedDateTime = dateTimePicker(event.time, dateTV)
         if (!showTime) {
             dateTV.visibility = View.GONE
         }
@@ -616,7 +639,7 @@ class MainActivity : AppCompatActivity() {
         val qtyET = dialogView.findViewById<EditText>(R.id.notes_qty_edittext)
 
         val dateTV = dialogView.findViewById<TextView>(R.id.dialog_date_picker)
-        val pickedTime = datePickerHelper(event.time, dateTV)
+        val pickedTime = dateTimePicker(event.time, dateTV)
 
         if (!showTime) {
             dateTV.visibility = View.GONE
@@ -828,7 +851,7 @@ class MainActivity : AppCompatActivity() {
             quantityTextView.text = NumericUtils(this).formatEventQuantity(event)
             notesTextView.text = event.notes
             if (event.type == LunaEvent.Type.SLEEP && event.quantity > 0) {
-                dateEndTextView.text = DateUtils.formatDateTime(event.time + event.quantity)
+                dateEndTextView.text = DateUtils.formatDateTime(event.getEndTime())
                 dateEndTextView.visibility = View.VISIBLE
             } else {
                 dateEndTextView.visibility = View.GONE
@@ -842,7 +865,7 @@ class MainActivity : AppCompatActivity() {
         }
         updateValues()
 
-        datePickerHelper(event.time, dateTextView, { newTime: Long ->
+        dateTimePicker(event.time, dateTextView, { newTime: Long ->
             event.time = newTime
             updateValues()
         })
@@ -856,7 +879,7 @@ class MainActivity : AppCompatActivity() {
                 LunaEvent.Type.PUKE -> askAmountValue(event, false, updateValues)
                 LunaEvent.Type.TEMPERATURE -> askTemperatureValue(event, false, updateValues)
                 LunaEvent.Type.NOTE -> askNotes(event, false, updateValues)
-                LunaEvent.Type.SLEEP -> askSleepValue(event, false, updateValues)
+                LunaEvent.Type.SLEEP -> askDurationEvent(event, false, updateValues)
                 else -> {
                     Log.w(TAG, "Unexpected type: ${event.type}")
                 }
@@ -886,7 +909,7 @@ class MainActivity : AppCompatActivity() {
         val previousEvent = getPreviousSameEvent(event, allEvents)
         if (previousEvent != null) {
             val emoji = previousEvent.getHeaderEmoji(applicationContext)
-            val time = DateUtils.formatTimeDuration(applicationContext, event.time - previousEvent.time)
+            val time = DateUtils.formatTimeDuration(applicationContext, event.getStartTime() - previousEvent.getEndTime())
             previousTextView.text = String.format("⬅️ %s %s", emoji, time)
             previousTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -901,7 +924,7 @@ class MainActivity : AppCompatActivity() {
         val nextEvent = getNextSameEvent(event, allEvents)
         if (nextEvent != null) {
             val emoji = nextEvent.getHeaderEmoji(applicationContext)
-            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.time - event.time)
+            val time = DateUtils.formatTimeDuration(applicationContext, nextEvent.getStartTime() - event.getEndTime())
             nextTextView.text = String.format("%s %s ➡️", time, emoji)
             nextTextView.setOnClickListener {
                 alertDialog.cancel()
@@ -1126,23 +1149,6 @@ class MainActivity : AppCompatActivity() {
         })
     }
 
-    fun logEvent(event: LunaEvent) {
-        savingEvent(true)
-
-        event.signature = signature
-
-        setLoading(true)
-        logbook?.logs?.add(0, event)
-        recyclerView.adapter?.notifyItemInserted(0)
-        recyclerView.smoothScrollToPosition(0)
-        saveLogbook(event)
-
-        // Check logbook size to avoid OOM errors
-        if (logbook?.isTooBig() == true) {
-            askToTrimLogbook()
-        }
-    }
-
     fun deleteEvent(event: LunaEvent) {
         // Update view
         savingEvent(true)
@@ -1154,6 +1160,32 @@ class MainActivity : AppCompatActivity() {
         saveLogbook()
     }
 
+    fun saveEvent(event: LunaEvent) {
+        if (allEvents.contains(event)) {
+            // event was modified
+            logbook?.sort()
+            recyclerView.adapter?.notifyDataSetChanged()
+            saveLogbook()
+        } else {
+            // add new event
+            savingEvent(true)
+            setLoading(true)
+            if (signature.isNotEmpty()) {
+                event.signature = signature
+            }
+            logbook?.logs?.add(0, event)
+            logbook?.sort()
+            recyclerView.adapter?.notifyDataSetChanged()
+            recyclerView.smoothScrollToPosition(0)
+            saveLogbook(event)
+
+            // Check logbook size to avoid OOM errors
+            if (logbook?.isTooBig() == true) {
+                askToTrimLogbook()
+            }
+        }
+    }
+
     /**
      * Saves the logbook. If saving while adding an event, please specify the event so in case
      * of error can be removed from the list.
@@ -1274,7 +1306,7 @@ class MainActivity : AppCompatActivity() {
             LunaEvent.Type.FOOD -> addNoteEvent(event)
             LunaEvent.Type.PUKE -> addAmountEvent(event)
             LunaEvent.Type.BATH -> addPlainEvent(event)
-            LunaEvent.Type.SLEEP -> addSleepEvent(event)
+            LunaEvent.Type.SLEEP -> addDurationEvent(event)
             LunaEvent.Type.UNKNOWN -> {} // ignore
         }
     }

app/src/main/java/it/danieleverducci/lunatracker/adapters/LunaEventRecyclerAdapter.kt

@@ -58,12 +58,7 @@ class LunaEventRecyclerAdapter: RecyclerView.Adapter<LunaEventRecyclerAdapter.Lu
             LunaEvent.Type.NOTE -> item.notes
             else -> item.getRowItemTitle(context)
         }
-        val endTime = if (item.type == LunaEvent.Type.SLEEP) {
-            item.quantity + item.time
-        } else {
-            item.time
-        }
-        holder.time.text = DateUtils.formatTimeAgo(context, endTime)
+        holder.time.text = DateUtils.formatTimeAgo(context, item.getEndTime())
         var quantityText = numericUtils.formatEventQuantity(item)
 
         // if the event is weight, show difference with the last one

app/src/main/java/it/danieleverducci/lunatracker/entities/LunaEvent.kt

@@ -115,6 +115,18 @@ class LunaEvent: Comparable<LunaEvent> {
         return getDialogMessage(context, type)
     }
 
+    fun getStartTime(): Long {
+        return time
+    }
+
+    fun getEndTime(): Long {
+        return if (type == Type.SLEEP) {
+            time + quantity
+        } else {
+            time
+        }
+    }
+
     fun toJson(): JSONObject {
         return jo
     }
@@ -162,7 +174,7 @@ class LunaEvent: Comparable<LunaEvent> {
                     Type.DIAPERCHANGE_PEE,
                     Type.PUKE -> R.string.log_amount_dialog_description
                     Type.WEIGHT -> R.string.log_weight_dialog_description
-                    Type.SLEEP -> R.string.log_sleep_dialog_description
+                    Type.SLEEP -> R.string.log_duration_dialog_description
                     else -> R.string.log_unknown_dialog_description
                 }
             )

app/src/main/java/utils/DateUtils.kt

@@ -9,10 +9,15 @@ import java.util.Date
 class DateUtils {
     companion object {
         /**
-         * Format time duration in seconds as e.g. "2 hours, 1 min".
+         * Format time duration in seconds as e.g. "2 hours, 1 min", rounded to minutes.
          * Used for the duration to the next/previous event in the event details dialog.
          */
         fun formatTimeDuration(context: Context, secondsDiff: Long): String {
+            val adjusted = (secondsDiff + 30) - (secondsDiff + 30) % 60
+            return formatTimeDurationExact(context, adjusted)
+        }
+
+        fun formatTimeDurationExact(context: Context, secondsDiff: Long): String {
             var seconds = secondsDiff
 
             val years = (seconds / (365 * 24 * 60 * 60F)).toLong()
@@ -56,11 +61,11 @@ class DateUtils {
                 return builder.toString()
             }
 
-            if (years > 0) {
+            if (years != 0L) {
                 return format(years, days, R.string.year_ago, R.string.years_ago, R.string.day_ago, R.string.days_ago)
-            } else if (days > 0) {
+            } else if (days != 0L) {
                 return format(days, hours, R.string.day_ago, R.string.days_ago, R.string.hour_ago, R.string.hours_ago)
-            } else if (hours > 0) {
+            } else if (hours != 0L) {
                 return format(hours, minutes, R.string.hour_ago, R.string.hours_ago, R.string.minute_ago, R.string.minutes_ago)
             } else {
                 return format(minutes, seconds, R.string.minute_ago, R.string.minute_ago, R.string.second_ago, R.string.seconds_ago)

app/src/main/res/drawable/ic_more.xml

@@ -1,5 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
-      
-    <path android:fillColor="@android:color/white" android:pathData="M12,8c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2zM12,16c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z"/>
-    
-</vector>

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

@@ -177,15 +177,16 @@
                     android:gravity="center_horizontal"
                     android:textSize="30sp"/>
 
-                <ImageView
+                <TextView
                     android:id="@+id/button_more"
-                    android:layout_width="60dp"
-                    android:layout_height="match_parent"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
                     android:layout_margin="5dp"
-                    android:layout_weight="0"
+                    android:layout_weight="1"
                     android:background="@drawable/button_background"
                     android:gravity="center_horizontal"
-                    android:src="@drawable/ic_more"
+                    android:textSize="30sp"
+                    android:text="☰"
                     app:tint="@android:color/darker_gray"/>
 
             </LinearLayout>

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

@@ -21,7 +21,7 @@
             android:layout_height="match_parent"
             android:visibility="gone"
             android:gravity="center"
-            android:text="No Data"/>
+            android:text="@string/statistics_no_data"/>
 
     </FrameLayout>
 
@@ -32,25 +32,18 @@
         android:orientation="horizontal">
 
         <Spinner
-            android:id="@+id/type_selection"
+            android:id="@+id/graph_type_selection"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:gravity="center"
-            android:layout_weight="1" />
+            android:layout_weight="1"
+            android:gravity="center"/>
 
         <Spinner
-            android:id="@+id/data_selection"
+            android:id="@+id/time_range_selection"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:gravity="center"
-            android:layout_weight="1"/>
-
-        <Spinner
-            android:id="@+id/time_selection"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:gravity="center"
-            android:layout_weight="1"/>
+            android:layout_weight="1"
+            android:gravity="center"/>
 
     </LinearLayout>
 

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

@@ -11,13 +11,14 @@
         android:id="@+id/dialog_date_duration"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
         android:textSize="20sp"
         android:text="💤"/>
 
     <LinearLayout
         android:id="@+id/duration_buttons"
-        android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:layout_width="match_parent"
         android:gravity="center"
         android:layout_marginTop="20dp"
         android:layout_marginHorizontal="10dp"
@@ -28,29 +29,61 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:text="-5"/>
+            android:text="@string/dialog_duration_button_minus_5"/>
 
         <Button
             android:id="@+id/dialog_date_duration_now"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:text="@string/now"/>
+            android:text="@string/dialog_duration_button_now"/>
+
+        <Button
+            android:id="@+id/dialog_date_duration_clear"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="@string/dialog_duration_button_clear"/>
 
         <Button
             android:id="@+id/dialog_date_duration_plus5"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:text="+5"/>
+            android:text="@string/dialog_duration_button_plus_5"/>
 
     </LinearLayout>
 
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:gravity="center"
+        android:layout_marginTop="20dp"
+        android:layout_marginHorizontal="10dp"
+        android:orientation="horizontal">
+
         <TextView
-        android:id="@+id/dialog_date_picker"
+            android:id="@+id/dialog_date_picker_begin"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:layout_marginTop="20dp"/>
+            android:gravity="center"
+            android:layout_weight="1"/>
+
+        <TextView
+            android:id="@+id/dialog_date_range_delimiter"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1"
+            android:text="－"/>
+
+        <TextView
+            android:id="@+id/dialog_date_picker_end"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:layout_weight="1"/>
+
+    </LinearLayout>
 
 </LinearLayout>

app/src/main/res/values/arrays.xml

@@ -8,23 +8,19 @@
     </string-array>
 
     <string-array name="StatisticsTypeLabels">
-        <item>Bottle</item>
-        <item>Sleep</item>
+        <item>@string/statistics_bottle_sum</item>
+        <item>@string/statistics_bottle_events</item>
+        <item>@string/statistics_sleep_sum</item>
+        <item>@string/statistics_sleep_events</item>
+        <item>@string/statistics_sleep_pattern</item>
     </string-array>
 
     <string-array name="StatisticsTypeValues">
-        <item>BOTTLE</item>
-        <item>SLEEP</item>
-    </string-array>
-
-    <string-array name="StatisticsDataLabels">
-        <item>Event</item>
-        <item>Amount</item>
-    </string-array>
-
-    <string-array name="StatisticsDataValues">
-        <item>EVENT</item>
-        <item>AMOUNT</item>
+        <item>BOTTLE_SUM</item>
+        <item>BOTTLE_EVENTS</item>
+        <item>SLEEP_SUM</item>
+        <item>SLEEP_EVENTS</item>
+        <item>SLEEP_PATTERN</item>
     </string-array>
 
     <string-array name="StatisticsTimeLabels">
@@ -38,5 +34,4 @@
         <item>WEEK</item>
         <item>MONTH</item>
     </string-array>
-
 </resources>

app/src/main/res/values/strings.xml

@@ -89,6 +89,7 @@
     <string name="no_connection_retry">Retry</string>
 
     <string name="statistics_title">Statistics</string>
+    <string name="statistics_no_data">No Data</string>
 
     <string name="settings_dynamic_menu">Dynamic Menu</string>
     <string name="settings_dynamic_menu_desc">Populate the header menu with the most used events.</string>
@@ -129,8 +130,7 @@
     <string name="log_temperature_dialog_description">Select the temperature:</string>
     <string name="log_unknown_dialog_description"></string>
     <string name="log_weight_dialog_description">Insert the weight:</string>
-    <string name="log_sleep_dialog_description">Set sleep duration:</string>
-    <string name="log_sleep_dialog_description_start">Start sleep cycle:</string>
+    <string name="log_duration_dialog_description">Set duration:</string>
 
     <string name="measurement_unit_liquid_base_metric" translatable="false">ml</string>
     <string name="measurement_unit_weight_base_metric" translatable="false">g</string>
@@ -141,6 +141,13 @@
     <string name="measurement_unit_temperature_base_imperial" translatable="false">°F</string>
     <string name="measurement_unit_temperature_base_metric" translatable="false">°C</string>
 
+    <string name="statistics_bottle_events">Bottle Events</string>
+    <string name="statistics_bottle_sum">Bottle Per Day</string>
+    <string name="statistics_medicine_events">Medicine Events</string>
+    <string name="statistics_sleep_sum">Sleep Per Day</string>
+    <string name="statistics_sleep_events">Sleep Events</string>
+    <string name="statistics_sleep_pattern">Sleep Pattern</string>
+
     <string name="row_luna_event_description">Description</string>
     <string name="row_luna_event_quantity">Qty</string>
     <string name="row_luna_event_time">Time</string>
@@ -153,6 +160,11 @@
     <string name="dialog_event_detail_notes">Notes</string>
     <string name="dialog_event_detail_signature">by %s</string>
 
+    <string name="dialog_duration_button_clear">Clear</string>
+    <string name="dialog_duration_button_minus_5">-5 min</string>
+    <string name="dialog_duration_button_now">Now</string>
+    <string name="dialog_duration_button_plus_5">+5 min</string>
+
     <string name="dialog_add_logbook_title">Add logbook</string>
     <string name="dialog_add_logbook_logbookname">👶 Logbook name</string>
     <string name="dialog_add_logbook_message">Write a name to identify this logbook. This name will appear on top of the screen and, if you use WebDAV, will be in the save file name as well.</string>