diff --git a/app/build.gradle b/app/build.gradle
index fad5dd9..737e3ec 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,7 +15,7 @@ android {
         minSdkVersion 21
         targetSdkVersion 29
         versionCode 1
-        versionName "1.1.4"
+        versionName "1.1.5"
 
         ndk {
             abiFilters 'x86_64', 'armeabi-v7a', 'arm64-v8a'
@@ -41,7 +41,7 @@ dependencies {
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation "androidx.core:core-ktx:1.3.1"
-    implementation "androidx.appcompat:appcompat:1.1.0"
+    implementation "androidx.appcompat:appcompat:1.2.0"
     implementation "androidx.constraintlayout:constraintlayout:1.1.3"
 
     implementation "androidx.sqlite:sqlite:2.1.0"
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 324019b..63a706d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -20,7 +20,7 @@
         android:requestLegacyExternalStorage="true"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".CameraActivity"/>
+        <activity android:name=".CameraActivity" android:screenOrientation="nosensor"/>
         <activity
             android:name=".SettingsActivity"
             android:label="@string/title_activity_settings"
diff --git a/app/src/main/java/sushi/hardcore/droidfs/CameraActivity.kt b/app/src/main/java/sushi/hardcore/droidfs/CameraActivity.kt
index 87b2fa0..7728823 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/CameraActivity.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/CameraActivity.kt
@@ -11,6 +11,9 @@ import com.otaliastudios.cameraview.CameraListener
 import com.otaliastudios.cameraview.PictureResult
 import com.otaliastudios.cameraview.controls.Facing
 import com.otaliastudios.cameraview.controls.Flash
+import com.otaliastudios.cameraview.controls.Grid
+import com.otaliastudios.cameraview.controls.Hdr
+import com.otaliastudios.cameraview.filter.Filters
 import kotlinx.android.synthetic.main.activity_camera.*
 import sushi.hardcore.droidfs.provider.RestrictedFileProvider
 import sushi.hardcore.droidfs.util.GocryptfsVolume
@@ -24,12 +27,16 @@ import java.util.*
 class CameraActivity : BaseActivity() {
     companion object {
         private val flashModes = listOf(Flash.AUTO, Flash.ON, Flash.OFF)
+        private val gridTitles = listOf(R.string.grid_none, R.string.grid_3x3, R.string.grid_4x4)
+        private val gridValues = listOf(Grid.OFF, Grid.DRAW_3X3, Grid.DRAW_4X4)
+        private val filterNames = Filters.values().map { it.toString().toLowerCase(Locale.ROOT).replace("_", " ").capitalize() as CharSequence }.toTypedArray()
         private const val fileNameRandomMin = 100000
         private const val fileNameRandomMax = 999999
         private val dateFormat = SimpleDateFormat("yyyyMMdd_HHmmss")
         private val random = Random()
     }
     private var currentFlashModeIndex = 0
+    private var currentFilterIndex = 0
     private var timerDuration = 0
         set(value) {
             field = value
@@ -68,6 +75,14 @@ class CameraActivity : BaseActivity() {
         take_photo_button.onClick = ::onClickTakePhoto
     }
 
+    private fun takePhoto() {
+        if (currentFilterIndex != 0){
+            camera.takePictureSnapshot()
+        } else {
+            camera.takePicture()
+        }
+    }
+
     private fun onClickTakePhoto() {
         val baseName = "IMG_"+dateFormat.format(Date())+"_"
         do {
@@ -81,12 +96,12 @@ class CameraActivity : BaseActivity() {
                     Thread.sleep(1000)
                 }
                 runOnUiThread {
-                    camera.takePicture()
+                    takePhoto()
                     text_timer.visibility = View.GONE
                 }
             }.start()
         } else {
-            camera.takePicture()
+            takePhoto()
         }
     }
 
@@ -113,13 +128,26 @@ class CameraActivity : BaseActivity() {
         }
     }
 
+    fun onClickHDR(view: View) {
+        camera.hdr = when (camera.hdr){
+            Hdr.ON -> {
+                image_hdr.setImageResource(R.drawable.icon_hdr_off)
+                Hdr.OFF
+            }
+            Hdr.OFF -> {
+                image_hdr.setImageResource(R.drawable.icon_hdr_on)
+                Hdr.ON
+            }
+        }
+    }
+
     fun onClickTimer(view: View) {
         val dialogEditTextView = layoutInflater.inflate(R.layout.dialog_edit_text, null)
         val dialogEditText = dialogEditTextView.findViewById<EditText>(R.id.dialog_edit_text)
         dialogEditText.inputType = InputType.TYPE_CLASS_NUMBER
         val dialog = ColoredAlertDialogBuilder(this)
             .setView(dialogEditTextView)
-            .setTitle("Enter the timer duration (in s)")
+            .setTitle(getString(R.string.enter_timer_duration))
             .setPositiveButton(R.string.ok) { _, _ ->
                 timerDuration = dialogEditText.text.toString().toInt()
             }
@@ -134,6 +162,29 @@ class CameraActivity : BaseActivity() {
         dialog.show()
     }
 
+    fun onClickGrid(view: View) {
+        ColoredAlertDialogBuilder(this)
+            .setTitle(getString(R.string.choose_grid))
+            .setSingleChoiceItems(gridTitles.map { getString(it) as CharSequence }.toTypedArray(), gridValues.indexOf(camera.grid)){ dialog, which ->
+                camera.grid = gridValues[which]
+                dialog.dismiss()
+            }
+            .setNegativeButton(R.string.cancel, null)
+            .show()
+    }
+
+    fun onClickFilter(view: View) {
+        ColoredAlertDialogBuilder(this)
+            .setTitle(getString(R.string.choose_filter))
+            .setSingleChoiceItems(filterNames, currentFilterIndex){ dialog, which ->
+                camera.filter = Filters.values()[which].newInstance()
+                currentFilterIndex = which
+                dialog.dismiss()
+            }
+            .setNegativeButton(R.string.cancel, null)
+            .show()
+    }
+
     override fun onDestroy() {
         super.onDestroy()
         if (!isFinishingIntentionally) {
diff --git a/app/src/main/java/sushi/hardcore/droidfs/adapters/ExplorerElementAdapter.kt b/app/src/main/java/sushi/hardcore/droidfs/adapters/ExplorerElementAdapter.kt
index cfff818..5a28216 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/adapters/ExplorerElementAdapter.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/adapters/ExplorerElementAdapter.kt
@@ -12,15 +12,15 @@ import android.widget.ImageView
 import android.widget.TextView
 import androidx.core.content.ContextCompat
 import sushi.hardcore.droidfs.ConstValues.Companion.getAssociatedDrawable
-import sushi.hardcore.droidfs.explorers.ExplorerElement
 import sushi.hardcore.droidfs.R
+import sushi.hardcore.droidfs.explorers.ExplorerElement
 import sushi.hardcore.droidfs.util.PathUtils
 import sushi.hardcore.droidfs.widgets.ThemeColor
 import java.text.DateFormat
 import java.util.*
 
 class ExplorerElementAdapter(private val context: Context) : BaseAdapter() {
-    private val dateFormat: DateFormat = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, context.resources.configuration.locale)
+    private val dateFormat: DateFormat = DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT, Locale.getDefault())
     private lateinit var explorerElements: List<ExplorerElement>
     private val inflater: LayoutInflater = LayoutInflater.from(context)
     val selectedItems: MutableList<Int> = ArrayList()
@@ -44,7 +44,11 @@ class ExplorerElementAdapter(private val context: Context) : BaseAdapter() {
         textElementName.text = currentElement.name
         val textElementMtime = view.findViewById<TextView>(R.id.text_element_mtime)
         val textElementSize = view.findViewById<TextView>(R.id.text_element_size)
-        textElementSize.text = ""
+        if (!currentElement.isParentFolder){
+            textElementSize.text = PathUtils.formatSize(currentElement.size)
+        } else {
+            textElementSize.text = ""
+        }
         var drawableId = R.drawable.icon_folder
         when {
             currentElement.isDirectory -> {
@@ -55,12 +59,11 @@ class ExplorerElementAdapter(private val context: Context) : BaseAdapter() {
             }
             else -> {
                 textElementMtime.text = dateFormat.format(currentElement.mTime)
-                textElementSize.text = PathUtils.formatSize(currentElement.size)
                 drawableId = getAssociatedDrawable(currentElement.name)
             }
         }
         val elementIcon = view.findViewById<ImageView>(R.id.icon_element)
-        val icon = context.getDrawable(drawableId)
+        val icon = ContextCompat.getDrawable(context, drawableId)
         icon?.colorFilter = PorterDuffColorFilter(themeColor, PorterDuff.Mode.SRC_IN)
         elementIcon.setImageDrawable(icon)
         if (selectedItems.contains(position)) {
diff --git a/app/src/main/java/sushi/hardcore/droidfs/explorers/BaseExplorerActivity.kt b/app/src/main/java/sushi/hardcore/droidfs/explorers/BaseExplorerActivity.kt
index 97ed57c..5a25184 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/explorers/BaseExplorerActivity.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/explorers/BaseExplorerActivity.kt
@@ -141,7 +141,6 @@ open class BaseExplorerActivity : BaseActivity() {
                             }
                             .setTitle(getString(R.string.open_as))
                             .setNegativeButton(R.string.cancel, null)
-                            .create()
                             .show()
                     }
                 }
@@ -180,9 +179,18 @@ open class BaseExplorerActivity : BaseActivity() {
         current_path_text.text = getString(R.string.location, currentDirectoryPath)
         Thread{
             var totalSize: Long = 0
-            for (e in gocryptfsVolume.recursiveMapFiles(currentDirectoryPath)){
-                if (e.isRegularFile){
-                    totalSize += e.size
+            for (element in explorerElements){
+                if (element.isDirectory){
+                    var dirSize: Long = 0
+                    for (subFile in gocryptfsVolume.recursiveMapFiles(element.fullPath)){
+                        if (subFile.isRegularFile){
+                            dirSize += subFile.size
+                        }
+                    }
+                    element.size = dirSize
+                    totalSize += dirSize
+                } else if (element.isRegularFile) {
+                    totalSize += element.size
                 }
             }
             total_size_text.text = getString(R.string.total_size, PathUtils.formatSize(totalSize))
@@ -432,4 +440,4 @@ open class BaseExplorerActivity : BaseActivity() {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerActivity.kt b/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerActivity.kt
index 64b36a5..3f5864f 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerActivity.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerActivity.kt
@@ -129,7 +129,6 @@ class ExplorerActivity : BaseExplorerActivity() {
                 }
                 .setTitle(getString(R.string.fab_dialog_title))
                 .setNegativeButton(R.string.cancel, null)
-                .create()
                 .show()
         }
     }
@@ -728,4 +727,4 @@ class ExplorerActivity : BaseExplorerActivity() {
         unselectAll()
         setCurrentPath(currentDirectoryPath) //refresh
     }
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerElement.kt b/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerElement.kt
index 173f5d4..796b0dd 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerElement.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/explorers/ExplorerElement.kt
@@ -3,7 +3,7 @@ package sushi.hardcore.droidfs.explorers
 import sushi.hardcore.droidfs.util.PathUtils
 import java.util.*
 
-class ExplorerElement(val name: String, val elementType: Short, val size: Long, mtime: Long, private val parentPath: String) {
+class ExplorerElement(val name: String, val elementType: Short, var size: Long, mtime: Long, parentPath: String) {
     val mTime = Date((mtime * 1000).toString().toLong())
     val fullPath: String = PathUtils.path_join(parentPath, name)
 
diff --git a/app/src/main/java/sushi/hardcore/droidfs/file_viewers/ImageViewer.kt b/app/src/main/java/sushi/hardcore/droidfs/file_viewers/ImageViewer.kt
index 897992e..4b4d81d 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/file_viewers/ImageViewer.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/file_viewers/ImageViewer.kt
@@ -65,6 +65,7 @@ class ImageViewer: FileViewerActivity() {
                             for ((i, e) in mappedImages.withIndex()){
                                 if (filePath == e.fullPath){
                                     currentMappedImageIndex = i
+                                    break
                                 }
                             }
                             wasMapped = true
diff --git a/app/src/main/java/sushi/hardcore/droidfs/util/MiscUtils.kt b/app/src/main/java/sushi/hardcore/droidfs/util/MiscUtils.kt
index 3abe8df..46f3fe0 100644
--- a/app/src/main/java/sushi/hardcore/droidfs/util/MiscUtils.kt
+++ b/app/src/main/java/sushi/hardcore/droidfs/util/MiscUtils.kt
@@ -10,7 +10,7 @@ object MiscUtils {
     }
     fun decrementIndex(index: Int, list: List<Any>): Int {
         var i = index-1
-        if (i <= 0){
+        if (i < 0){
             i = list.size-1
         }
         return i
diff --git a/app/src/main/res/drawable/icon_grid_on.xml b/app/src/main/res/drawable/icon_grid_on.xml
new file mode 100644
index 0000000..7bfc825
--- /dev/null
+++ b/app/src/main/res/drawable/icon_grid_on.xml
@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M20,2L4,2c-1.1,0 -2,0.9 -2,2v16c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,4c0,-1.1 -0.9,-2 -2,-2zM8,20L4,20v-4h4v4zM8,14L4,14v-4h4v4zM8,8L4,8L4,4h4v4zM14,20h-4v-4h4v4zM14,14h-4v-4h4v4zM14,8h-4L10,4h4v4zM20,20h-4v-4h4v4zM20,14h-4v-4h4v4zM20,8h-4L16,4h4v4z"/>
+</vector>
diff --git a/app/src/main/res/drawable/icon_hdr_off.xml b/app/src/main/res/drawable/icon_hdr_off.xml
new file mode 100644
index 0000000..550f633
--- /dev/null
+++ b/app/src/main/res/drawable/icon_hdr_off.xml
@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M17.5,15v-2h1.1l0.9,2L21,15l-0.9,-2.1c0.5,-0.2 0.9,-0.8 0.9,-1.4v-1c0,-0.8 -0.7,-1.5 -1.5,-1.5L16,9v4.9l1.1,1.1h0.4zM17.5,10.5h2v1h-2v-1zM13,10.5v0.4l1.5,1.5v-1.9c0,-0.8 -0.7,-1.5 -1.5,-1.5h-1.9l1.5,1.5h0.4zM9.5,9.5l-7,-7 -1.1,1L6.9,9h-0.4v2h-2L4.5,9L3,9v6h1.5v-2.5h2L6.5,15L8,15v-4.9l1.5,1.5L9.5,15h3.4l7.6,7.6 1.1,-1.1 -12.1,-12z"/>
+</vector>
diff --git a/app/src/main/res/drawable/icon_hdr_on.xml b/app/src/main/res/drawable/icon_hdr_on.xml
new file mode 100644
index 0000000..4e10da5
--- /dev/null
+++ b/app/src/main/res/drawable/icon_hdr_on.xml
@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M21,11.5v-1c0,-0.8 -0.7,-1.5 -1.5,-1.5L16,9v6h1.5v-2h1.1l0.9,2L21,15l-0.9,-2.1c0.5,-0.3 0.9,-0.8 0.9,-1.4zM19.5,11.5h-2v-1h2v1zM6.5,11h-2L4.5,9L3,9v6h1.5v-2.5h2L6.5,15L8,15L8,9L6.5,9v2zM13,9L9.5,9v6L13,15c0.8,0 1.5,-0.7 1.5,-1.5v-3c0,-0.8 -0.7,-1.5 -1.5,-1.5zM13,13.5h-2v-3h2v3z"/>
+</vector>
diff --git a/app/src/main/res/drawable/icon_photo_filter.xml b/app/src/main/res/drawable/icon_photo_filter.xml
new file mode 100644
index 0000000..81dc7e1
--- /dev/null
+++ b/app/src/main/res/drawable/icon_photo_filter.xml
@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M19.02,10v9L5,19L5,5h9L14,3L5.02,3c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2v-9h-2zM17,10l0.94,-2.06L20,7l-2.06,-0.94L17,4l-0.94,2.06L14,7l2.06,0.94zM13.25,10.75L12,8l-1.25,2.75L8,12l2.75,1.25L12,16l1.25,-2.75L16,12z"/>
+</vector>
diff --git a/app/src/main/res/layout/activity_camera.xml b/app/src/main/res/layout/activity_camera.xml
index f751227..afe5493 100644
--- a/app/src/main/res/layout/activity_camera.xml
+++ b/app/src/main/res/layout/activity_camera.xml
@@ -11,24 +11,62 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         app:cameraGesturePinch="zoom"
+        app:cameraGestureTap="autoFocus"
+        app:cameraAutoFocusMarker="@string/cameraview_default_autofocus_marker"
+        app:cameraHdr="on"
         app:cameraPictureFormat="jpeg"
         app:cameraAudio="off"/>
 
-    <RelativeLayout
+    <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="40dp"
-        android:layout_alignParentTop="true"
         android:layout_marginTop="20dp">
 
+        <ImageView
+            android:id="@+id/image_hdr"
+            android:layout_width="30dp"
+            android:layout_height="30dp"
+            android:onClick="onClickHDR"
+            android:src="@drawable/icon_hdr_on"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/image_timer"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
         <ImageView
             android:id="@+id/image_timer"
             android:layout_width="30dp"
             android:layout_height="30dp"
+            android:onClick="onClickTimer"
             android:src="@drawable/icon_timer"
-            android:layout_centerInParent="true"
-            android:onClick="onClickTimer"/>
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/image_grid"
+            app:layout_constraintStart_toEndOf="@id/image_hdr"
+            app:layout_constraintTop_toTopOf="parent" />
 
-    </RelativeLayout>
+        <ImageView
+            android:id="@+id/image_grid"
+            android:layout_width="30dp"
+            android:layout_height="30dp"
+            android:onClick="onClickGrid"
+            android:src="@drawable/icon_grid_on"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/image_filter"
+            app:layout_constraintStart_toEndOf="@+id/image_timer"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ImageView
+            android:id="@+id/image_filter"
+            android:layout_width="30dp"
+            android:layout_height="30dp"
+            android:onClick="onClickFilter"
+            android:src="@drawable/icon_photo_filter"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/image_grid"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
 
     <TextView
         android:id="@+id/text_timer"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 99a2b06..1a1e34c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -155,4 +155,10 @@
     <string name="move_failed">Move of %s failed.</string>
     <string name="move_success_msg">The selected items have been successfully moved.</string>
     <string name="move_success">Move successful !</string>
+    <string name="enter_timer_duration">Enter the timer duration (in s)</string>
+    <string name="grid_none">None</string>
+    <string name="grid_3x3">3x3</string>
+    <string name="grid_4x4">4x4</string>
+    <string name="choose_grid">Choose grid</string>
+    <string name="choose_filter">Choose filter</string>
 </resources>