handle column count changing etc at the storage fragment

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/fragments/ItemsFragment.kt

@@ -538,22 +538,7 @@ class ItemsFragment(context: Context, attributeSet: AttributeSet) : MyViewPagerF
 
     override fun deleteFiles(files: ArrayList<FileDirItem>) {
         val hasFolder = files.any { it.isDirectory }
-        val firstPath = files.firstOrNull()?.path
-        if (firstPath == null || firstPath.isEmpty() || context == null) {
-            return
-        }
-
-        if (context!!.isPathOnRoot(firstPath)) {
-            RootHelpers(activity!!).deleteFiles(files)
-        } else {
-            (activity as SimpleActivity).deleteFiles(files, hasFolder) {
-                if (!it) {
-                    activity!!.runOnUiThread {
-                        activity!!.toast(R.string.unknown_error_occurred)
-                    }
-                }
-            }
-        }
+        handleFileDeleting(files, hasFolder)
     }
 
     override fun selectedPaths(paths: ArrayList<String>) {

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/fragments/MyViewPagerFragment.kt

@@ -5,10 +5,13 @@ import android.util.AttributeSet
 import android.widget.RelativeLayout
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.VIEW_TYPE_LIST
+import com.simplemobiletools.commons.models.FileDirItem
 import com.simplemobiletools.filemanager.pro.R
 import com.simplemobiletools.filemanager.pro.activities.MainActivity
 import com.simplemobiletools.filemanager.pro.activities.SimpleActivity
+import com.simplemobiletools.filemanager.pro.extensions.isPathOnRoot
 import com.simplemobiletools.filemanager.pro.extensions.tryOpenPathIntent
+import com.simplemobiletools.filemanager.pro.helpers.RootHelpers
 import kotlinx.android.synthetic.main.items_fragment.view.*
 
 abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet) : RelativeLayout(context, attributeSet) {
@@ -48,6 +51,25 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
         items_fab?.setImageDrawable(fabIcon)
     }
 
+    fun handleFileDeleting(files: ArrayList<FileDirItem>, hasFolder: Boolean) {
+        val firstPath = files.firstOrNull()?.path
+        if (firstPath == null || firstPath.isEmpty() || context == null) {
+            return
+        }
+
+        if (context!!.isPathOnRoot(firstPath)) {
+            RootHelpers(activity!!).deleteFiles(files)
+        } else {
+            (activity as SimpleActivity).deleteFiles(files, hasFolder) {
+                if (!it) {
+                    activity!!.runOnUiThread {
+                        activity!!.toast(R.string.unknown_error_occurred)
+                    }
+                }
+            }
+        }
+    }
+
     protected fun isProperMimeType(wantedMimeType: String, path: String, isDirectory: Boolean): Boolean {
         return if (wantedMimeType.isEmpty() || wantedMimeType == "*/*" || isDirectory) {
             true

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/fragments/RecentsFragment.kt

@@ -6,7 +6,6 @@ import android.provider.MediaStore.Files
 import android.provider.MediaStore.Files.FileColumns
 import android.util.AttributeSet
 import androidx.core.os.bundleOf
-import androidx.recyclerview.widget.GridLayoutManager
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.VIEW_TYPE_GRID
 import com.simplemobiletools.commons.helpers.VIEW_TYPE_LIST
@@ -15,14 +14,11 @@ import com.simplemobiletools.commons.helpers.isOreoPlus
 import com.simplemobiletools.commons.models.FileDirItem
 import com.simplemobiletools.commons.views.MyGridLayoutManager
 import com.simplemobiletools.commons.views.MyRecyclerView
-import com.simplemobiletools.filemanager.pro.R
 import com.simplemobiletools.filemanager.pro.activities.MainActivity
 import com.simplemobiletools.filemanager.pro.activities.SimpleActivity
 import com.simplemobiletools.filemanager.pro.adapters.ItemsAdapter
 import com.simplemobiletools.filemanager.pro.extensions.config
-import com.simplemobiletools.filemanager.pro.extensions.isPathOnRoot
 import com.simplemobiletools.filemanager.pro.helpers.MAX_COLUMN_COUNT
-import com.simplemobiletools.filemanager.pro.helpers.RootHelpers
 import com.simplemobiletools.filemanager.pro.interfaces.ItemOperationsListener
 import com.simplemobiletools.filemanager.pro.models.ListItem
 import kotlinx.android.synthetic.main.recents_fragment.view.*
@@ -52,7 +48,7 @@ class RecentsFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
                 filesIgnoringSearch = recents
                 addItems(recents, false)
 
-                if (context != null && currentViewType != context!!.config.getFolderViewType(currentPath)) {
+                if (context != null && currentViewType != context!!.config.getFolderViewType("")) {
                     setupLayoutManager()
                 }
             }
@@ -89,7 +85,7 @@ class RecentsFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
     }
 
     private fun setupLayoutManager() {
-        if (context!!.config.getFolderViewType(currentPath) == VIEW_TYPE_GRID) {
+        if (context!!.config.getFolderViewType("") == VIEW_TYPE_GRID) {
             currentViewType = VIEW_TYPE_GRID
             setupGridLayoutManager()
         } else {
@@ -106,16 +102,6 @@ class RecentsFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
     private fun setupGridLayoutManager() {
         val layoutManager = recents_list.layoutManager as MyGridLayoutManager
         layoutManager.spanCount = context?.config?.fileColumnCnt ?: 3
-
-        layoutManager.spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
-            override fun getSpanSize(position: Int): Int {
-                return if (getRecyclerAdapter()?.isASectionTitle(position) == true) {
-                    layoutManager.spanCount
-                } else {
-                    1
-                }
-            }
-        }
     }
 
     private fun setupListLayoutManager() {
@@ -125,7 +111,7 @@ class RecentsFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
     }
 
     private fun initZoomListener() {
-        if (context?.config?.getFolderViewType(currentPath) == VIEW_TYPE_GRID) {
+        if (context?.config?.getFolderViewType("") == VIEW_TYPE_GRID) {
             val layoutManager = recents_list.layoutManager as MyGridLayoutManager
             zoomListener = object : MyRecyclerView.MyZoomListener {
                 override fun zoomIn() {
@@ -240,22 +226,7 @@ class RecentsFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
     }
 
     override fun deleteFiles(files: ArrayList<FileDirItem>) {
-        val firstPath = files.firstOrNull()?.path
-        if (firstPath == null || firstPath.isEmpty() || context == null) {
-            return
-        }
-
-        if (context!!.isPathOnRoot(firstPath)) {
-            RootHelpers(activity!!).deleteFiles(files)
-        } else {
-            (activity as SimpleActivity).deleteFiles(files, false) {
-                if (!it) {
-                    activity!!.runOnUiThread {
-                        activity!!.toast(R.string.unknown_error_occurred)
-                    }
-                }
-            }
-        }
+        handleFileDeleting(files, false)
     }
 
     override fun searchQueryChanged(text: String) {

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/fragments/StorageFragment.kt

@@ -13,11 +13,9 @@ import android.util.AttributeSet
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.os.bundleOf
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.LOWER_ALPHA
-import com.simplemobiletools.commons.helpers.SHORT_ANIMATION_DURATION
-import com.simplemobiletools.commons.helpers.ensureBackgroundThread
-import com.simplemobiletools.commons.helpers.isOreoPlus
+import com.simplemobiletools.commons.helpers.*
 import com.simplemobiletools.commons.models.FileDirItem
+import com.simplemobiletools.commons.views.MyGridLayoutManager
 import com.simplemobiletools.filemanager.pro.R
 import com.simplemobiletools.filemanager.pro.activities.MimeTypesActivity
 import com.simplemobiletools.filemanager.pro.activities.SimpleActivity
@@ -59,9 +57,7 @@ class StorageFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
         others_holder.setOnClickListener { launchMimetypeActivity(OTHERS) }
 
         Handler().postDelayed({
-            val fileDirItems = getAllFiles()
-            allDeviceListItems = getListItemsFromFileDirItems(fileDirItems)
-            setupSearchResultsAdapter()
+            refreshFragment()
         }, 2000)
     }
 
@@ -261,7 +257,30 @@ class StorageFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
         }
     }
 
-    private fun setupSearchResultsAdapter() {
+    private fun setupLayoutManager() {
+        if (context!!.config.getFolderViewType("") == VIEW_TYPE_GRID) {
+            currentViewType = VIEW_TYPE_GRID
+            setupGridLayoutManager()
+        } else {
+            currentViewType = VIEW_TYPE_LIST
+            setupListLayoutManager()
+        }
+
+        search_results_list.adapter = null
+        addItems()
+    }
+
+    private fun setupGridLayoutManager() {
+        val layoutManager = search_results_list.layoutManager as MyGridLayoutManager
+        layoutManager.spanCount = context?.config?.fileColumnCnt ?: 3
+    }
+
+    private fun setupListLayoutManager() {
+        val layoutManager = search_results_list.layoutManager as MyGridLayoutManager
+        layoutManager.spanCount = 1
+    }
+
+    private fun addItems() {
         ItemsAdapter(context as SimpleActivity, allDeviceListItems, this, search_results_list, false, null, false) {
             clickedPath((it as FileDirItem).path)
         }.apply {
@@ -319,19 +338,40 @@ class StorageFragment(context: Context, attributeSet: AttributeSet) : MyViewPage
         return fileDirItems
     }
 
-    override fun refreshFragment() {}
+    private fun getRecyclerAdapter() = search_results_list.adapter as? ItemsAdapter
 
-    override fun deleteFiles(files: ArrayList<FileDirItem>) {}
+    override fun refreshFragment() {
+        val fileDirItems = getAllFiles()
+        allDeviceListItems = getListItemsFromFileDirItems(fileDirItems)
+        setupLayoutManager()
+    }
+
+    override fun deleteFiles(files: ArrayList<FileDirItem>) {
+        handleFileDeleting(files, false)
+    }
 
     override fun selectedPaths(paths: ArrayList<String>) {}
 
-    override fun setupDateTimeFormat() {}
+    override fun setupDateTimeFormat() {
+        getRecyclerAdapter()?.updateDateTimeFormat()
+    }
 
-    override fun setupFontSize() {}
+    override fun setupFontSize() {
+        getRecyclerAdapter()?.updateFontSizes()
+    }
 
-    override fun toggleFilenameVisibility() {}
+    override fun toggleFilenameVisibility() {
+        getRecyclerAdapter()?.updateDisplayFilenamesInGrid()
+    }
 
-    override fun columnCountChanged() {}
+    override fun columnCountChanged() {
+        (search_results_list.layoutManager as MyGridLayoutManager).spanCount = context!!.config.fileColumnCnt
+        getRecyclerAdapter()?.apply {
+            notifyItemRangeChanged(0, listItems.size)
+        }
+    }
 
-    override fun finishActMode() {}
+    override fun finishActMode() {
+        getRecyclerAdapter()?.finishActMode()
+    }
 }