display image resolution at the properties dialog

app/src/main/kotlin/com/simplemobiletools/filemanager/dialogs/PropertiesDialog.kt

@@ -41,7 +41,9 @@ class PropertiesDialog : DialogFragment() {
                 properties_files_count.visibility = View.VISIBLE
                 properties_files_count.text = mFilesCnt.toString()
             } else if (mItem.isImage()) {
-
+                properties_resolution_label.visibility = View.VISIBLE
+                properties_resolution.visibility = View.VISIBLE
+                properties_resolution.text = mItem.resolution
             }
 
             val file = File(mItem.path)

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

@@ -85,4 +85,21 @@
         android:textColor="@android:color/black"
         android:visibility="gone"/>
 
+    <TextView
+        android:id="@+id/properties_resolution_label"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/smtfp_activity_margin"
+        android:text="@string/resolution"
+        android:textSize="@dimen/smtfp_details_text_size"
+        android:visibility="gone"/>
+
+    <TextView
+        android:id="@+id/properties_resolution"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="@dimen/smtfp_small_margin"
+        android:textColor="@android:color/black"
+        android:visibility="gone"/>
+
 </LinearLayout>

app/src/main/res/values-de/strings.xml

@@ -44,6 +44,7 @@
     <string name="size">Size</string>
     <string name="last_modified">Last modified</string>
     <string name="files_count">Files inside</string>
+    <string name="resolution">Resolution</string>
 
     <plurals name="items_deleted">
         <item quantity="one">1 Datei/Ordner gelöscht</item>

app/src/main/res/values-it/strings.xml

@@ -44,6 +44,7 @@
     <string name="size">Dimensione</string>
     <string name="last_modified">Ultima modifica</string>
     <string name="files_count">File contenuti</string>
+    <string name="resolution">Resolution</string>
 
     <plurals name="items_deleted">
         <item quantity="one">1 elemento eliminato</item>

app/src/main/res/values-ja/strings.xml

@@ -44,6 +44,7 @@
     <string name="size">Size</string>
     <string name="last_modified">Last modified</string>
     <string name="files_count">Files inside</string>
+    <string name="resolution">Resolution</string>
 
     <plurals name="items_deleted">
         <item quantity="one">1 アイテムを削除しました</item>

app/src/main/res/values-pt-rPT/strings.xml

@@ -44,6 +44,7 @@
     <string name="size">Tamanho</string>
     <string name="last_modified">Última modificação</string>
     <string name="files_count">Ficheiros no interior</string>
+    <string name="resolution">Resolution</string>
 
     <plurals name="items_deleted">
         <item quantity="one">1 item eliminado</item>

app/src/main/res/values-sv/strings.xml

@@ -44,6 +44,7 @@
     <string name="size">Size</string>
     <string name="last_modified">Last modified</string>
     <string name="files_count">Files inside</string>
+    <string name="resolution">Resolution</string>
 
     <plurals name="items_deleted">
         <item quantity="one">1 objekt borttagen</item>

app/src/main/res/values/strings.xml

@@ -44,6 +44,7 @@
     <string name="size">Size</string>
     <string name="last_modified">Last modified</string>
     <string name="files_count">Files inside</string>
+    <string name="resolution">Resolution</string>
 
     <plurals name="items_deleted">
         <item quantity="one">1 item deleted</item>

library/src/main/kotlin/com/simplemobiletools/filepicker/models/FileDirItem.kt

@@ -1,5 +1,6 @@
 package com.simplemobiletools.filepicker.models
 
+import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 
 class FileDirItem(val path: String, val name: String, val isDirectory: Boolean, val children: Int, val size: Long) :
@@ -22,6 +23,16 @@ class FileDirItem(val path: String, val name: String, val isDirectory: Boolean,
     fun isImage(): Boolean {
         val options = BitmapFactory.Options()
         options.inJustDecodeBounds = true
-        return options.outWidth !== -1 && options.outHeight !== -1
+        BitmapFactory.decodeFile(path, options)
+        return options.outWidth != -1 && options.outHeight != -1
     }
+
+    val resolution: String
+        get () {
+            val bitmap: Bitmap? = BitmapFactory.decodeFile(path)
+            if (bitmap == null)
+                return ""
+
+            return "${bitmap.width} x ${bitmap.height}"
+        }
 }