Created grid span count slider in dialog

app/src/main/kotlin/com/simplemobiletools/dialer/adapters/ContactsAdapter.kt

@@ -31,6 +31,8 @@ import com.simplemobiletools.dialer.extensions.areMultipleSIMsAvailable
 import com.simplemobiletools.dialer.extensions.callContactWithSim
 import com.simplemobiletools.dialer.extensions.config
 import com.simplemobiletools.dialer.extensions.startContactDetailsIntent
+import com.simplemobiletools.dialer.helpers.GRID_MAX_SPAN_COUNT
+import com.simplemobiletools.dialer.helpers.GRID_MIN_SPAN_COUNT
 import com.simplemobiletools.dialer.interfaces.RefreshItemsListener
 import java.util.*
 
@@ -349,7 +351,7 @@ class ContactsAdapter(
         val layoutManager = recyclerView.layoutManager
         if (layoutManager is GridLayoutManager) {
             val currentSpanCount = layoutManager.spanCount
-            val newSpanCount = (currentSpanCount - 1).coerceIn(MIN_COLUMNS, MAX_COLUMNS)
+            val newSpanCount = (currentSpanCount - 1).coerceIn(GRID_MIN_SPAN_COUNT, GRID_MAX_SPAN_COUNT)
             layoutManager.spanCount = newSpanCount
             recyclerView.requestLayout()
             onSpanCountListener(newSpanCount)
@@ -360,17 +362,11 @@ class ContactsAdapter(
         val layoutManager = recyclerView.layoutManager
         if (layoutManager is GridLayoutManager) {
             val currentSpanCount = layoutManager.spanCount
-            val newSpanCount = (currentSpanCount + 1).coerceIn(MIN_COLUMNS, MAX_COLUMNS)
+            val newSpanCount = (currentSpanCount + 1).coerceIn(GRID_MIN_SPAN_COUNT, GRID_MAX_SPAN_COUNT)
             layoutManager.spanCount = newSpanCount
             recyclerView.requestLayout()
             onSpanCountListener(newSpanCount)
         }
     }
 
-    companion object {
-        private const val MIN_COLUMNS = 2
-        private const val MAX_COLUMNS = 6
-    }
-
-
 }

app/src/main/kotlin/com/simplemobiletools/dialer/dialogs/ChangeViewTypeDialog.kt

@@ -2,15 +2,19 @@ package com.simplemobiletools.dialer.dialogs
 
 import android.view.View
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
+import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.commons.extensions.getAlertDialogBuilder
 import com.simplemobiletools.commons.extensions.setupDialogStuff
 import com.simplemobiletools.commons.helpers.VIEW_TYPE_GRID
 import com.simplemobiletools.commons.helpers.VIEW_TYPE_LIST
 import com.simplemobiletools.dialer.R
 import com.simplemobiletools.dialer.extensions.config
+import com.simplemobiletools.dialer.helpers.GRID_MAX_SPAN_COUNT
+import com.simplemobiletools.dialer.helpers.GRID_MIN_SPAN_COUNT
 import kotlinx.android.synthetic.main.dialog_change_view_type.view.change_view_type_dialog_radio
 import kotlinx.android.synthetic.main.dialog_change_view_type.view.change_view_type_dialog_radio_grid
 import kotlinx.android.synthetic.main.dialog_change_view_type.view.change_view_type_dialog_radio_list
+import kotlinx.android.synthetic.main.dialog_change_view_type.view.grid_span_count_slider
 
 class ChangeViewTypeDialog(val activity: BaseSimpleActivity, val path: String = "", showFolderCheck: Boolean = true, val callback: () -> Unit) {
     private var view: View
@@ -22,6 +26,15 @@ class ChangeViewTypeDialog(val activity: BaseSimpleActivity, val path: String =
                 VIEW_TYPE_GRID -> change_view_type_dialog_radio_grid.id
                 else -> change_view_type_dialog_radio_list.id
             }
+
+            change_view_type_dialog_radio_grid.setOnCheckedChangeListener { buttonView, isChecked ->
+                grid_span_count_slider.beVisibleIf(isChecked)
+            }
+            grid_span_count_slider.value = config.gridLayoutSpanCount.toFloat()
+            grid_span_count_slider.stepSize = 1f
+            grid_span_count_slider.valueFrom = GRID_MIN_SPAN_COUNT.toFloat()
+            grid_span_count_slider.valueTo = GRID_MAX_SPAN_COUNT.toFloat()
+
             change_view_type_dialog_radio.check(viewToCheck)
         }
 
@@ -35,6 +48,7 @@ class ChangeViewTypeDialog(val activity: BaseSimpleActivity, val path: String =
 
     private fun dialogConfirmed() {
         val viewType = if (view.change_view_type_dialog_radio_grid.isChecked) {
+            config.gridLayoutSpanCount = view.grid_span_count_slider.value.toInt()
             VIEW_TYPE_GRID
         } else {
             VIEW_TYPE_LIST

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

@@ -96,7 +96,7 @@ class Config(context: Context) : BaseConfig(context) {
         set(viewType) = prefs.edit().putInt(VIEW_TYPE, viewType).apply()
 
     var gridLayoutSpanCount: Int
-        get() = prefs.getInt(GRID_LAYOUT_SPAN_COUNT, DEFAULT_GRID_SPAN_COUNT)
+        get() = prefs.getInt(GRID_LAYOUT_SPAN_COUNT, GRID_DEFAULT_SPAN_COUNT)
         set(gridLayoutSpanCount) = prefs.edit().putInt(GRID_LAYOUT_SPAN_COUNT, gridLayoutSpanCount).apply()
 
 }

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

@@ -35,4 +35,6 @@ const val DIALPAD_TONE_LENGTH_MS = 150L // The length of DTMF tones in milliseco
 
 const val MIN_RECENTS_THRESHOLD = 30
 
-const val DEFAULT_GRID_SPAN_COUNT = 3
+const val GRID_DEFAULT_SPAN_COUNT = 3
+const val GRID_MIN_SPAN_COUNT = 2
+const val GRID_MAX_SPAN_COUNT = 6

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

@@ -27,6 +27,13 @@
                 android:paddingBottom="@dimen/medium_margin"
                 android:text="@string/grid" />
 
+            <com.google.android.material.slider.Slider
+                android:id="@+id/grid_span_count_slider"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:stepSize="1.0"
+                android:visibility="gone" />
+
             <com.simplemobiletools.commons.views.MyCompatRadioButton
                 android:id="@+id/change_view_type_dialog_radio_list"
                 android:layout_width="match_parent"