added clear video cache

app/src/main/java/com/lagradost/cloudstream3/ui/settings/SettingsFragment.kt

@@ -204,6 +204,20 @@ class SettingsFragment : PreferenceFragmentCompat() {
         }
     }
 
+    fun getFolderSize(dir: File): Long {
+        var size: Long = 0
+        dir.listFiles()?.let {
+            for (file in it) {
+                size += if (file.isFile) {
+                    // System.out.println(file.getName() + " " + file.length());
+                    file.length()
+                } else getFolderSize(file)
+            }
+        }
+
+        return size
+    }
+
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         hideKeyboard()
         setPreferencesFromResource(R.xml.settings, rootKey)
@@ -249,6 +263,31 @@ class SettingsFragment : PreferenceFragmentCompat() {
             return@setOnPreferenceClickListener true
         }
 
+        getPref(R.string.video_buffer_clear_key)?.let { pref ->
+            val cacheDir = context?.cacheDir ?: return@let
+
+            fun updateSummery() {
+                try {
+                    pref.summary =
+                        getString(R.string.mb_format).format(getFolderSize(cacheDir) / (1024L * 1024L))
+                } catch (e: Exception) {
+                    logError(e)
+                }
+            }
+
+            updateSummery()
+
+            pref.setOnPreferenceClickListener {
+                try {
+                    cacheDir.deleteRecursively()
+                    updateSummery()
+                } catch (e: Exception) {
+                    logError(e)
+                }
+                return@setOnPreferenceClickListener true
+            }
+        }
+
         getPref(R.string.video_buffer_disk_key)?.setOnPreferenceClickListener {
             val prefNames = resources.getStringArray(R.array.video_buffer_size_names)
             val prefValues = resources.getIntArray(R.array.video_buffer_size_values)

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

@@ -15,6 +15,7 @@
     <string name="quality_pref_key" translatable="false">quality_pref_key</string>
     <string name="video_buffer_size_key" translatable="false">video_buffer_size_key</string>
     <string name="video_buffer_length_key" translatable="false">video_buffer_length_key</string>
+    <string name="video_buffer_clear_key" translatable="false">video_buffer_clear_key</string>
     <string name="video_buffer_disk_key" translatable="false">video_buffer_disk_key</string>
     <string name="prerelease_commit_hash" translatable="false">unknown_prerelease</string>
     <string name="use_system_brightness_key" translatable="false">use_system_brightness_key</string>
@@ -44,6 +45,7 @@
     <string name="extra_info_format" translatable="false" formatted="true">%d %s | %sMB</string>
     <string name="storage_size_format" translatable="false" formatted="true">%s • %sGB</string>
     <string name="download_size_format" translatable="false" formatted="true">%sMB / %sMB</string>
+    <string name="mb_format" translatable="false" formatted="true">%dMB</string>
     <string name="episode_name_format" translatable="false" formatted="true">%s %s</string>
     <string name="ffw_text_format" translatable="false" formatted="true">+%d</string>
     <string name="rew_text_format" translatable="false" formatted="true">-%d</string>
@@ -324,6 +326,8 @@
     <string name="video_buffer_size_settings">Video buffer size</string>
     <string name="video_buffer_length_settings">Video buffer length</string>
     <string name="video_buffer_disk_settings">Video cache on disk</string>
+    <string name="video_buffer_clear_settings">Clear video and image cache</string>
+
     <string name="video_buffer_description">May cause problems on systems with low ram or storage such as Android TV devices or old phones if you set it too high</string>
 
     <string name="dns_pref">DNS over HTTPS</string>

app/src/main/res/xml/settings.xml

@@ -80,6 +80,11 @@
                 android:title="@string/video_buffer_length_settings"
                 android:summary="@string/video_buffer_description"
                 android:icon="@drawable/ic_baseline_storage_24" />
+
+        <Preference
+                android:key="@string/video_buffer_clear_key"
+                android:title="@string/video_buffer_clear_settings"
+                android:icon="@drawable/ic_baseline_autorenew_24" />
         <!--
         <SwitchPreference
                 android:icon="@drawable/ic_baseline_brightness_7_24"