add a menu button for easier new folder creating

app/build.gradle

@@ -37,7 +37,7 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.27.8'
+    compile 'com.simplemobiletools:commons:2.27.9'
     compile 'com.davemorrissey.labs:subsampling-scale-image-view:3.6.0'
     compile 'com.theartofdev.edmodo:android-image-cropper:2.4.0'
     compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'

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

@@ -17,6 +17,8 @@ import android.view.MenuItem
 import android.view.ViewGroup
 import android.widget.FrameLayout
 import com.google.gson.Gson
+import com.simplemobiletools.commons.dialogs.CreateNewFolderDialog
+import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.models.Release
 import com.simplemobiletools.commons.views.MyScalableRecyclerView
@@ -55,6 +57,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     private var mLoadedInitialPhotos = false
     private var mLastMediaModified = 0
     private var mLastMediaHandler = Handler()
+    private var mNewFolderPath = ""
 
     private var mCurrAsyncTask: GetDirectoriesAsynctask? = null
 
@@ -105,6 +108,7 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
             R.id.show_all -> showAllMedia()
             R.id.temporarily_show_hidden -> tryToggleTemporarilyShowHidden()
             R.id.stop_showing_hidden -> tryToggleTemporarilyShowHidden()
+            R.id.create_new_folder -> createNewFolder()
             R.id.increase_column_count -> increaseColumnCount()
             R.id.reduce_column_count -> reduceColumnCount()
             R.id.settings -> launchSettings()
@@ -155,6 +159,13 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
     override fun onDestroy() {
         super.onDestroy()
         config.temporarilyShowHidden = false
+
+        val newFolder = File(mNewFolderPath)
+        if (newFolder.exists() && newFolder.isDirectory) {
+            if (newFolder.list()?.isEmpty() == true) {
+                deleteFileBg(newFolder, true) { }
+            }
+        }
     }
 
     private fun tryloadGallery() {
@@ -300,6 +311,14 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         }
     }
 
+    private fun createNewFolder() {
+        FilePickerDialog(this, internalStoragePath, false, config.shouldShowHidden) {
+            CreateNewFolderDialog(this, it) {
+                mNewFolderPath = it
+            }
+        }
+    }
+
     private fun increaseColumnCount() {
         config.dirColumnCnt = ++(directories_grid.layoutManager as GridLayoutManager).spanCount
         invalidateOptionsMenu()

app/src/main/res/menu/menu_main.xml

@@ -28,6 +28,10 @@
         android:id="@+id/stop_showing_hidden"
         android:title="@string/stop_showing_hidden"
         app:showAsAction="never"/>
+    <item
+        android:id="@+id/create_new_folder"
+        android:title="@string/create_new_folder"
+        app:showAsAction="never"/>
     <item
         android:id="@+id/increase_column_count"
         android:title="@string/increase_column_count"