Enable customization of column count for application drawer

app/src/main/kotlin/com/simplemobiletools/launcher/activities/HiddenIconsActivity.kt

@@ -11,7 +11,7 @@ import com.simplemobiletools.commons.interfaces.RefreshRecyclerViewListener
 import com.simplemobiletools.commons.views.MyGridLayoutManager
 import com.simplemobiletools.launcher.R
 import com.simplemobiletools.launcher.adapters.HiddenIconsAdapter
-import com.simplemobiletools.launcher.extensions.getColumnCount
+import com.simplemobiletools.launcher.extensions.getDrawerColumnCount
 import com.simplemobiletools.launcher.extensions.getDrawableForPackageName
 import com.simplemobiletools.launcher.extensions.hiddenIconsDB
 import com.simplemobiletools.launcher.models.HiddenIcon
@@ -28,7 +28,7 @@ class HiddenIconsActivity : SimpleActivity(), RefreshRecyclerViewListener {
         setupMaterialScrollListener(manage_hidden_icons_list, manage_hidden_icons_toolbar)
 
         val layoutManager = manage_hidden_icons_list.layoutManager as MyGridLayoutManager
-        layoutManager.spanCount = getColumnCount()
+        layoutManager.spanCount = getDrawerColumnCount()
     }
 
     override fun onResume() {

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

@@ -208,6 +208,8 @@ class MainActivity : SimpleActivity(), FlingListener {
         if (window.navigationBarColor != resources.getColor(R.color.semitransparent_navigation)) {
             window.navigationBarColor = Color.TRANSPARENT
         }
+
+        (all_apps_fragment as? AllAppsFragment)?.onResume()
     }
 
     override fun onStop() {

app/src/main/kotlin/com/simplemobiletools/launcher/activities/SettingsActivity.kt

@@ -2,15 +2,19 @@ package com.simplemobiletools.launcher.activities
 
 import android.content.Intent
 import android.os.Bundle
+import com.simplemobiletools.commons.dialogs.RadioGroupDialog
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.NavigationIcon
 import com.simplemobiletools.commons.helpers.isTiramisuPlus
 import com.simplemobiletools.commons.models.FAQItem
+import com.simplemobiletools.commons.models.RadioItem
 import com.simplemobiletools.launcher.BuildConfig
 import com.simplemobiletools.launcher.R
 import com.simplemobiletools.launcher.extensions.config
+import com.simplemobiletools.launcher.extensions.getDrawerColumnCount
+import com.simplemobiletools.launcher.helpers.MAX_COLUMN_COUNT
 import kotlinx.android.synthetic.main.activity_settings.*
-import java.util.*
+import java.util.Locale
 import kotlin.system.exitProcess
 
 class SettingsActivity : SimpleActivity() {
@@ -32,6 +36,7 @@ class SettingsActivity : SimpleActivity() {
         setupPurchaseThankYou()
         setupCustomizeColors()
         setupUseEnglish()
+        setupDrawerColumnCount()
         setupLanguage()
         setupManageHiddenIcons()
         updateTextColors(settings_holder)
@@ -82,6 +87,29 @@ class SettingsActivity : SimpleActivity() {
         }
     }
 
+    private fun setupDrawerColumnCount() {
+        val currentColumnCount = getDrawerColumnCount()
+        settings_drawer_column_count.text = currentColumnCount.toString()
+        settings_drawer_column_count_holder.setOnClickListener {
+            val items = ArrayList<RadioItem>()
+            for (i in 1..MAX_COLUMN_COUNT) {
+                items.add(RadioItem(i, resources.getQuantityString(R.plurals.column_counts, i, i)))
+            }
+
+            RadioGroupDialog(this, items, currentColumnCount) {
+                val newColumnCount = it as Int
+                if (currentColumnCount != newColumnCount) {
+                    if (portrait) {
+                        config.portraitDrawerColumnCount = newColumnCount
+                    } else {
+                        config.landscapeDrawerColumnCount = newColumnCount
+                    }
+                    setupDrawerColumnCount()
+                }
+            }
+        }
+    }
+
     private fun setupLanguage() {
         settings_language.text = Locale.getDefault().displayLanguage
         settings_language_holder.beVisibleIf(isTiramisuPlus())

app/src/main/kotlin/com/simplemobiletools/launcher/adapters/LaunchersAdapter.kt

@@ -11,10 +11,10 @@ import com.bumptech.glide.request.transition.DrawableCrossFadeFactory
 import com.qtalk.recyclerviewfastscroller.RecyclerViewFastScroller
 import com.simplemobiletools.commons.extensions.getColoredDrawableWithColor
 import com.simplemobiletools.commons.extensions.getProperTextColor
-import com.simplemobiletools.commons.extensions.portrait
 import com.simplemobiletools.commons.extensions.realScreenSize
 import com.simplemobiletools.launcher.R
 import com.simplemobiletools.launcher.activities.SimpleActivity
+import com.simplemobiletools.launcher.extensions.getDrawerColumnCount
 import com.simplemobiletools.launcher.interfaces.AllAppsListener
 import com.simplemobiletools.launcher.models.AppLauncher
 import com.simplemobiletools.launcher.models.HomeScreenGridItem
@@ -47,13 +47,7 @@ class LaunchersAdapter(
     override fun getItemCount() = launchers.size
 
     private fun calculateIconWidth() {
-        val currentColumnCount = activity.resources.getInteger(
+        val currentColumnCount = activity.getDrawerColumnCount()
-            if (activity.portrait) {
-                R.integer.portrait_column_count
-            } else {
-                R.integer.landscape_column_count
-            }
-        )
 
         val iconWidth = activity.realScreenSize.x / currentColumnCount
         iconPadding = (iconWidth * 0.1f).toInt()

app/src/main/kotlin/com/simplemobiletools/launcher/extensions/Context.kt

@@ -23,11 +23,11 @@ val Context.homeScreenGridItemsDB: HomeScreenGridItemsDao get() = AppsDatabase.g
 
 val Context.hiddenIconsDB: HiddenIconsDao get() = AppsDatabase.getInstance(applicationContext).HiddenIconsDao()
 
-fun Context.getColumnCount(): Int {
+fun Context.getDrawerColumnCount(): Int {
     return if (portrait) {
-        resources.getInteger(R.integer.portrait_column_count)
+        config.portraitDrawerColumnCount
     } else {
-        resources.getInteger(R.integer.landscape_column_count)
+        config.landscapeDrawerColumnCount
     }
 }
 

app/src/main/kotlin/com/simplemobiletools/launcher/fragments/AllAppsFragment.kt

@@ -13,7 +13,7 @@ import com.simplemobiletools.commons.views.MyGridLayoutManager
 import com.simplemobiletools.launcher.R
 import com.simplemobiletools.launcher.activities.MainActivity
 import com.simplemobiletools.launcher.adapters.LaunchersAdapter
-import com.simplemobiletools.launcher.extensions.getColumnCount
+import com.simplemobiletools.launcher.extensions.getDrawerColumnCount
 import com.simplemobiletools.launcher.extensions.launchApp
 import com.simplemobiletools.launcher.helpers.ITEM_TYPE_ICON
 import com.simplemobiletools.launcher.interfaces.AllAppsListener
@@ -40,6 +40,20 @@ class AllAppsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
         }
     }
 
+    @SuppressLint("NotifyDataSetChanged")
+    fun onResume() {
+        if (all_apps_grid?.layoutManager == null || all_apps_grid?.adapter == null) {
+            return
+        }
+
+        val layoutManager = all_apps_grid.layoutManager as MyGridLayoutManager
+        if (layoutManager.spanCount != context.getDrawerColumnCount()) {
+            onConfigurationChanged()
+            // Force redraw due to changed item size
+            (all_apps_grid.adapter as LaunchersAdapter).notifyDataSetChanged()
+        }
+    }
+
     fun onConfigurationChanged() {
         if (all_apps_grid == null) {
             return
@@ -50,7 +64,7 @@ class AllAppsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
         setupViews()
 
         val layoutManager = all_apps_grid.layoutManager as MyGridLayoutManager
-        layoutManager.spanCount = context.getColumnCount()
+        layoutManager.spanCount = context.getDrawerColumnCount()
         val launchers = (all_apps_grid.adapter as LaunchersAdapter).launchers
         setupAdapter(launchers)
     }
@@ -100,7 +114,7 @@ class AllAppsFragment(context: Context, attributeSet: AttributeSet) : MyFragment
     private fun setupAdapter(launchers: ArrayList<AppLauncher>) {
         activity?.runOnUiThread {
             val layoutManager = all_apps_grid.layoutManager as MyGridLayoutManager
-            layoutManager.spanCount = context.getColumnCount()
+            layoutManager.spanCount = context.getDrawerColumnCount()
 
             val currAdapter = all_apps_grid.adapter
             if (currAdapter == null) {

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

@@ -2,6 +2,7 @@ package com.simplemobiletools.launcher.helpers
 
 import android.content.Context
 import com.simplemobiletools.commons.helpers.BaseConfig
+import com.simplemobiletools.launcher.R
 
 class Config(context: Context) : BaseConfig(context) {
     companion object {
@@ -11,4 +12,12 @@ class Config(context: Context) : BaseConfig(context) {
     var wasHomeScreenInit: Boolean
         get() = prefs.getBoolean(WAS_HOME_SCREEN_INIT, false)
         set(wasHomeScreenInit) = prefs.edit().putBoolean(WAS_HOME_SCREEN_INIT, wasHomeScreenInit).apply()
+
+    var portraitDrawerColumnCount: Int
+        get() = prefs.getInt(PORTRAIT_DRAWER_COLUMN_COUNT, context.resources.getInteger(R.integer.portrait_column_count))
+        set(portraitDrawerColumnCount) = prefs.edit().putInt(PORTRAIT_DRAWER_COLUMN_COUNT, portraitDrawerColumnCount).apply()
+
+    var landscapeDrawerColumnCount: Int
+        get() = prefs.getInt(LANDSCAPE_DRAWER_COLUMN_COUNT, context.resources.getInteger(R.integer.landscape_column_count))
+        set(landscapeDrawerColumnCount) = prefs.edit().putInt(LANDSCAPE_DRAWER_COLUMN_COUNT, landscapeDrawerColumnCount).apply()
 }

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

@@ -5,10 +5,13 @@ const val WIDGET_LIST_ITEMS_HOLDER = 1
 
 // shared prefs
 const val WAS_HOME_SCREEN_INIT = "was_home_screen_init"
+const val PORTRAIT_DRAWER_COLUMN_COUNT = "portrait_drawer_column_count"
+const val LANDSCAPE_DRAWER_COLUMN_COUNT = "landscape_drawer_column_count"
 
 // default home screen grid size
 const val ROW_COUNT = 6
 const val COLUMN_COUNT = 5
+const val MAX_COLUMN_COUNT = 15
 
 const val UNINSTALL_APP_REQUEST_CODE = 50
 const val REQUEST_CONFIGURE_WIDGET = 51

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

@@ -120,6 +120,30 @@
 
             </RelativeLayout>
 
+            <RelativeLayout
+                android:id="@+id/settings_drawer_column_count_holder"
+                style="@style/SettingsHolderTextViewOneLinerStyle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@drawable/ripple_bottom_corners">
+
+                <com.simplemobiletools.commons.views.MyTextView
+                    android:id="@+id/settings_drawer_column_count_label"
+                    style="@style/SettingsTextLabelStyle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="Drawer column count" />
+
+                <com.simplemobiletools.commons.views.MyTextView
+                    android:id="@+id/settings_drawer_column_count"
+                    style="@style/SettingsTextValueStyle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_below="@+id/settings_drawer_column_count_label"
+                    tools:text="3" />
+
+            </RelativeLayout>
+
             <RelativeLayout
                 android:id="@+id/settings_manage_hidden_icons_holder"
                 style="@style/SettingsHolderTextViewOneLinerStyle"