add a menu item for Adding favorites at the manage favorites screen

app/build.gradle

@@ -32,7 +32,7 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.12.7'
+    compile 'com.simplemobiletools:commons:2.12.8'
     compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

app/src/main/kotlin/com/simplemobiletools/filemanager/activities/FavoritesActivity.kt

@@ -2,6 +2,9 @@ package com.simplemobiletools.filemanager.activities
 
 import android.graphics.PorterDuff
 import android.os.Bundle
+import android.view.Menu
+import android.view.MenuItem
+import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.extensions.beVisibleIf
 import com.simplemobiletools.filemanager.R
 import com.simplemobiletools.filemanager.extensions.config
@@ -38,4 +41,24 @@ class FavoritesActivity : SimpleActivity() {
             }
         }
     }
+
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+        menuInflater.inflate(R.menu.menu_favorites, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            R.id.add_favorite -> addFavorite()
+            else -> return super.onOptionsItemSelected(item)
+        }
+        return true
+    }
+
+    private fun addFavorite() {
+        FilePickerDialog(this, pickFile = false, showHidden = config.showHidden) {
+            config.addFavorite(it)
+            updateFavorites()
+        }
+    }
 }

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

@@ -57,6 +57,7 @@ class MainActivity : SimpleActivity(), ItemsFragment.ItemInteractionListener, Br
             breadcrumbs.setTextColor(mStoredTextColor)
             openPath(currentPath)
         }
+        invalidateOptionsMenu()
     }
 
     override fun onPause() {
@@ -82,12 +83,13 @@ class MainActivity : SimpleActivity(), ItemsFragment.ItemInteractionListener, Br
     }
 
     private fun openPath(path: String) {
-        breadcrumbs.setBreadcrumb(path)
+        val realPath = path.trimEnd('/')
+        breadcrumbs.setBreadcrumb(realPath)
         val bundle = Bundle()
-        bundle.putString(PATH, path)
+        bundle.putString(PATH, realPath)
 
-        if (mScrollStates.containsKey(path.trimEnd('/'))) {
-            bundle.putParcelable(SCROLL_STATE, mScrollStates[path.trimEnd('/')])
+        if (mScrollStates.containsKey(realPath)) {
+            bundle.putParcelable(SCROLL_STATE, mScrollStates[realPath])
         }
 
         if (latestFragment != null) {
@@ -97,9 +99,9 @@ class MainActivity : SimpleActivity(), ItemsFragment.ItemInteractionListener, Br
         latestFragment = ItemsFragment().apply {
             arguments = bundle
             setListener(this@MainActivity)
-            supportFragmentManager.beginTransaction().replace(R.id.fragment_holder, this).addToBackStack(path).commitAllowingStateLoss()
+            supportFragmentManager.beginTransaction().replace(R.id.fragment_holder, this).addToBackStack(realPath).commitAllowingStateLoss()
         }
-        currentPath = path
+        currentPath = realPath
         invalidateOptionsMenu()
     }
 

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

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/add_favorite"
+        android:icon="@drawable/ic_plus"
+        android:title="@string/add_to_favorites"
+        app:showAsAction="ifRoom"/>
+</menu>