add password protection for showing hidden items

app/build.gradle

@@ -32,7 +32,7 @@ android {
 }
 
 dependencies {
-    compile 'com.simplemobiletools:commons:2.22.7'
+    compile 'com.simplemobiletools:commons:2.25.3'
     compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

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

@@ -184,8 +184,19 @@ class MainActivity : SimpleActivity(), ItemsFragment.ItemInteractionListener, Br
     }
 
     private fun temporarilyShowHidden() {
-        config.temporarilyShowHidden = true
+        if (config.temporarilyShowHidden) {
+            toggleTemporarilyShowHidden(false)
+        } else {
+            handleHiddenFolderPasswordProtection {
+                toggleTemporarilyShowHidden(true)
+            }
+        }
+    }
+
+    private fun toggleTemporarilyShowHidden(show: Boolean) {
+        config.temporarilyShowHidden = show
         openPath(currentPath)
+        invalidateOptionsMenu()
     }
 
     private fun launchAbout() {

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

@@ -2,7 +2,10 @@ package com.simplemobiletools.filemanager.activities
 
 import android.content.Intent
 import android.os.Bundle
+import com.simplemobiletools.commons.dialogs.SecurityDialog
+import com.simplemobiletools.commons.extensions.handleHiddenFolderPasswordProtection
 import com.simplemobiletools.commons.extensions.updateTextColors
+import com.simplemobiletools.commons.helpers.SHOW_ALL_TABS
 import com.simplemobiletools.filemanager.R
 import com.simplemobiletools.filemanager.extensions.config
 import kotlinx.android.synthetic.main.activity_settings.*
@@ -19,6 +22,7 @@ class SettingsActivity : SimpleActivity() {
         setupCustomizeColors()
         setupManageFavorites()
         setupShowHidden()
+        setupPasswordProtection()
         updateTextColors(settings_holder)
     }
 
@@ -37,8 +41,32 @@ class SettingsActivity : SimpleActivity() {
     private fun setupShowHidden() {
         settings_show_hidden.isChecked = config.showHidden
         settings_show_hidden_holder.setOnClickListener {
+            if (config.showHidden) {
+                toggleShowHidden()
+            } else {
+                handleHiddenFolderPasswordProtection {
+                    toggleShowHidden()
+                }
+            }
+        }
+    }
+
+    private fun toggleShowHidden() {
         settings_show_hidden.toggle()
         config.showHidden = settings_show_hidden.isChecked
     }
+
+    private fun setupPasswordProtection() {
+        settings_password_protection.isChecked = config.isPasswordProtectionOn
+        settings_password_protection_holder.setOnClickListener {
+            val tabToShow = if (config.isPasswordProtectionOn) config.protectionType else SHOW_ALL_TABS
+            SecurityDialog(this, config.passwordHash, tabToShow) { hash, type ->
+                val hasPasswordProtection = config.isPasswordProtectionOn
+                settings_password_protection.isChecked = !hasPasswordProtection
+                config.isPasswordProtectionOn = !hasPasswordProtection
+                config.passwordHash = if (hasPasswordProtection) "" else hash
+                config.protectionType = type
+            }
+        }
     }
 }

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

@@ -68,5 +68,25 @@
                 android:text="@string/show_hidden"/>
 
         </RelativeLayout>
+
+        <RelativeLayout
+            android:id="@+id/settings_password_protection_holder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/medium_margin"
+            android:background="?attr/selectableItemBackground"
+            android:padding="@dimen/activity_margin">
+
+            <com.simplemobiletools.commons.views.MySwitchCompat
+                android:id="@+id/settings_password_protection"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@null"
+                android:clickable="false"
+                android:paddingLeft="@dimen/medium_margin"
+                android:paddingStart="@dimen/medium_margin"
+                android:text="@string/password_protect_hidden_items"/>
+
+        </RelativeLayout>
     </LinearLayout>
 </ScrollView>