added clear temporary files

.idea/assetWizardSettings.xml

@@ -320,7 +320,7 @@
                                 <PersistentState>
                                   <option name="values">
                                     <map>
-                                      <entry key="url" value="file:/$USER_HOME$/AppData/Local/Android/Sdk/icons/material/materialicons/video_file/baseline_video_file_24.xml" />
+                                      <entry key="url" value="file:/$USER_HOME$/AppData/Local/Android/Sdk/icons/material/materialicons/folder_delete/baseline_folder_delete_24.xml" />
                                     </map>
                                   </option>
                                 </PersistentState>
@@ -330,8 +330,7 @@
                         </option>
                         <option name="values">
                           <map>
-                            <entry key="assetSourceType" value="FILE" />
-                            <entry key="outputName" value="ic_translate" />
+                            <entry key="outputName" value="ic_folder_delete" />
                             <entry key="sourceFile" value="C:\Users\denis\Desktop\FREKUENCA\icons8-google-translate.svg" />
                           </map>
                         </option>

app/src/main/java/com/deniscerri/ytdlnis/ui/more/settings/SettingsFragment.kt

@@ -12,6 +12,8 @@ import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.os.LocaleListCompat
 import androidx.preference.*
+import androidx.work.WorkInfo
+import androidx.work.WorkManager
 import com.deniscerri.ytdlnis.BuildConfig
 import com.deniscerri.ytdlnis.R
 import com.deniscerri.ytdlnis.util.FileUtil
@@ -26,6 +28,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
     private var videoPath: Preference? = null
     private var commandPath: Preference? = null
     private var accessAllFiles : Preference? = null
+    private var clearCache: Preference? = null
     private var incognito: SwitchPreferenceCompat? = null
     private var preferredDownloadType : ListPreference? = null
     private var downloadCard: SwitchPreferenceCompat? = null
@@ -56,12 +59,21 @@ class SettingsFragment : PreferenceFragmentCompat() {
 
     private var updateUtil: UpdateUtil? = null
     private var fileUtil: FileUtil? = null
+    private var activeDownloadCount = 0
 
     private val jsonFormat = Json { prettyPrint = true }
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.root_preferences, rootKey)
         updateUtil = UpdateUtil(requireContext())
         fileUtil = FileUtil()
+
+        WorkManager.getInstance(requireContext()).getWorkInfosByTagLiveData("download").observe(this){
+            activeDownloadCount = 0
+            it.forEach {w ->
+                if (w.state == WorkInfo.State.RUNNING) activeDownloadCount++
+            }
+        }
+
         initPreferences()
         initListeners()
     }
@@ -75,6 +87,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
         videoPath = findPreference("video_path")
         commandPath = findPreference("command_path")
         accessAllFiles = findPreference("access_all_files")
+        clearCache = findPreference("clear_cache")
         incognito = findPreference("incognito")
         preferredDownloadType = findPreference("preferred_download_type")
         downloadCard = findPreference("download_card")
@@ -210,6 +223,20 @@ class SettingsFragment : PreferenceFragmentCompat() {
                 true
             }
 
+        var cacheSize = requireContext().cacheDir.walkBottomUp().fold(0L) { acc, file -> acc + file.length() }
+        clearCache!!.summary = "(${fileUtil!!.convertFileSize(cacheSize)}) ${resources.getString(R.string.clear_temporary_files_summary)}"
+        clearCache!!.onPreferenceClickListener =
+            Preference.OnPreferenceClickListener {
+                if (activeDownloadCount == 0){
+                    requireContext().cacheDir.deleteRecursively()
+                    Toast.makeText(requireContext(), getString(R.string.cache_cleared), Toast.LENGTH_SHORT).show()
+                    cacheSize = requireContext().cacheDir.walkBottomUp().fold(0L) { acc, file -> acc + file.length() }
+                    clearCache!!.summary = "(${fileUtil!!.convertFileSize(cacheSize)}) ${resources.getString(R.string.clear_temporary_files_summary)}"
+                }else{
+                    Toast.makeText(requireContext(), getString(R.string.downloads_running_try_later), Toast.LENGTH_SHORT).show()
+                }
+                true
+            }
         incognito!!.onPreferenceChangeListener =
             Preference.OnPreferenceChangeListener { _: Preference?, newValue: Any ->
                 val enable = newValue as Boolean

app/src/main/res/drawable/ic_folder_delete.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="?android:colorAccent" android:pathData="M22,8v10c0,1.1 -0.9,2 -2,2H4c-1.1,0 -2,-0.9 -2,-2L2.01,6C2.01,4.9 2.9,4 4,4h6l2,2h8C21.1,6 22,6.9 22,8zM16.5,10V9h-2v1H12v1.5h1v4c0,0.83 0.67,1.5 1.5,1.5h2c0.83,0 1.5,-0.67 1.5,-1.5v-4h1V10H16.5zM16.5,15.5h-2v-4h2V15.5z"/>
+</vector>

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

@@ -221,4 +221,8 @@
     <string name="restart">Restart</string>
     <string name="download_rescheduled_to">Download rescheduled to:</string>
     <string name="file_size">File size</string>
+    <string name="clear_temporary_files">Clear temporary files</string>
+    <string name="clear_temporary_files_summary">Delete cached files from crashed/errored/cancelled downloads</string>
+    <string name="cache_cleared">Temporary files cleared</string>
+    <string name="downloads_running_try_later">Download worker is running. Try again later</string>
 </resources>

app/src/main/res/xml/root_preferences.xml

@@ -36,6 +36,12 @@
             android:summary="@string/access_all_directories_summary"
             app:title="@string/access_all_directories" />
 
+        <Preference
+            app:icon="@drawable/ic_folder_delete"
+            app:key="clear_cache"
+            android:summary="@string/clear_temporary_files_summary"
+            app:title="@string/clear_temporary_files" />
+
     </PreferenceCategory>
 
     <PreferenceCategory app:title="@string/downloading">