show the image at the widget

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

@@ -145,6 +145,8 @@ class MainActivity : SimpleActivity(), DirectoryOperationsListener {
                 config.filterMedia += TYPE_SVGS
             }
         }
+
+        updateWidgets()
     }
 
     override fun onStart() {

app/src/main/kotlin/com/simplemobiletools/gallery/pro/extensions/Context.kt

@@ -1,5 +1,7 @@
 package com.simplemobiletools.gallery.pro.extensions
 
+import android.appwidget.AppWidgetManager
+import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.res.Configuration
@@ -487,3 +489,14 @@ fun Context.getUpdatedDeletedMedia(mediumDao: MediumDao): ArrayList<Medium> {
 fun Context.deleteDBPath(mediumDao: MediumDao, path: String) {
     mediumDao.deleteMediumPath(path.replaceFirst(recycleBinPath, RECYCLE_BIN))
 }
+
+fun Context.updateWidgets() {
+    val widgetIDs = AppWidgetManager.getInstance(applicationContext).getAppWidgetIds(ComponentName(applicationContext, MyWidgetProvider::class.java))
+    if (widgetIDs.isNotEmpty()) {
+        Intent(applicationContext, MyWidgetProvider::class.java).apply {
+            action = AppWidgetManager.ACTION_APPWIDGET_UPDATE
+            putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, widgetIDs)
+            sendBroadcast(this)
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/gallery/pro/helpers/MyWidgetProvider.kt

@@ -3,13 +3,23 @@ package com.simplemobiletools.gallery.pro.helpers
 import android.app.PendingIntent
 import android.appwidget.AppWidgetManager
 import android.appwidget.AppWidgetProvider
+import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
+import android.os.Handler
+import android.os.Looper
+import android.util.Log
 import android.widget.RemoteViews
+import com.bumptech.glide.Glide
+import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.bumptech.glide.request.RequestOptions
+import com.bumptech.glide.request.target.AppWidgetTarget
 import com.simplemobiletools.commons.extensions.setBackgroundColor
 import com.simplemobiletools.gallery.pro.R
 import com.simplemobiletools.gallery.pro.activities.MediaActivity
 import com.simplemobiletools.gallery.pro.extensions.config
+import com.simplemobiletools.gallery.pro.extensions.directoryDB
+import com.simplemobiletools.gallery.pro.extensions.getFileSignature
 import com.simplemobiletools.gallery.pro.extensions.widgetsDB
 import com.simplemobiletools.gallery.pro.models.Widget
 
@@ -29,9 +39,28 @@ class MyWidgetProvider : AppWidgetProvider() {
             context.widgetsDB.getWidgets().forEach {
                 val views = RemoteViews(context.packageName, R.layout.widget)
                 views.setBackgroundColor(R.id.widget_holder, context.config.widgetBgColor)
+
+                val path = context.directoryDB.getDirectoryThumbnail(it.folderPath)
+                val options = RequestOptions()
+                        .signature(path!!.getFileSignature())
+                        .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
+                if (context.config.cropThumbnails) options.centerCrop() else options.fitCenter()
+
+                Handler(Looper.getMainLooper()).post {
+                    val widgetSize = context.resources.getDimension(R.dimen.widget_initial_width).toInt()
+                    val componentName = ComponentName(context, MyWidgetProvider::class.java)
+                    val appWidgetTarget = object : AppWidgetTarget(context, widgetSize, widgetSize, R.id.widget_imageview, views, componentName) {}
+
+                    Glide.with(context)
+                            .asBitmap()
+                            .load(path)
+                            .apply(options)
+                            .into(appWidgetTarget)
+
                     setupAppOpenIntent(context, views, R.id.widget_holder, it)
                     appWidgetManager.updateAppWidget(it.widgetId, views)
                 }
+            }
         }.start()
     }
 }

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

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/widget_holder"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -9,6 +10,6 @@
         android:id="@+id/widget_imageview"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:src="@mipmap/ic_launcher"/>
+        tools:src="@mipmap/ic_launcher"/>
 
 </RelativeLayout>

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

@@ -33,9 +33,10 @@
 
     <RelativeLayout
         android:id="@+id/config_image_holder"
-        android:layout_width="110dp"
-        android:layout_height="110dp"
-        android:layout_below="@+id/folder_picker_holder">
+        android:layout_width="134dp"
+        android:layout_height="134dp"
+        android:layout_below="@+id/folder_picker_holder"
+        android:padding="@dimen/normal_margin">
 
         <com.simplemobiletools.gallery.pro.views.MySquareImageView
             android:id="@+id/config_image"

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

@@ -15,4 +15,5 @@
     <dimen name="bottom_filters_height">90dp</dimen>
     <dimen name="bottom_editor_actions_shadow_height">180dp</dimen>
     <dimen name="default_status_action_height">86dp</dimen>
+    <dimen name="widget_initial_width">110dp</dimen>
 </resources>

app/src/main/res/xml/widget_info.xml

@@ -3,7 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:configure="com.simplemobiletools.gallery.pro.activities.WidgetConfigureActivity"
     android:initialLayout="@layout/widget"
-    android:minWidth="40dp"
+    android:minWidth="@dimen/widget_initial_width"
     android:minHeight="40dp"
     android:minResizeWidth="40dp"
     android:minResizeHeight="40dp"