From b64f1647420ad6a882efdf2e28bf8130cc45a09f Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Tue, 11 Dec 2018 12:47:18 +0100
Subject: [PATCH] delete invalid files from cache at loading thumbnails

---
 .../gallery/pro/activities/MediaActivity.kt          | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt
index 791cabd78..a8390793d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/MediaActivity.kt
@@ -585,7 +585,15 @@ class MediaActivity : SimpleActivity(), MediaOperationsListener {
         mCurrAsyncTask?.stopFetching()
         mCurrAsyncTask = GetMediaAsynctask(applicationContext, mPath, mIsGetImageIntent, mIsGetVideoIntent, mShowAll) {
             Thread {
-                gotMedia(it)
+                val oldMedia = mMedia.clone() as ArrayList<ThumbnailItem>
+                val newMedia = it
+                gotMedia(newMedia, false)
+                try {
+                    oldMedia.filter { !newMedia.contains(it) }.mapNotNull { it as? Medium }.filter { !File(it.path).exists() }.forEach {
+                        mMediumDao.deleteMediumPath(it.path)
+                    }
+                } catch (e: Exception) {
+                }
             }.start()
         }
 
@@ -820,7 +828,7 @@ class MediaActivity : SimpleActivity(), MediaOperationsListener {
         }
     }
 
-    private fun gotMedia(media: ArrayList<ThumbnailItem>, isFromCache: Boolean = false) {
+    private fun gotMedia(media: ArrayList<ThumbnailItem>, isFromCache: Boolean) {
         mIsGettingMedia = false
         checkLastMediaChanged()
         mMedia = media