|  | @@ -9,7 +9,6 @@ import android.os.Build
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				|  |  |  import android.os.Bundle
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				|  |  |  import android.os.PowerManager
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				|  |  |  import android.provider.Settings
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				|  |  | -import android.view.View
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				|  |  |  import androidx.preference.PreferenceScreen
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				|  |  |  import com.afollestad.materialdialogs.MaterialDialog
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				|  |  |  import com.bluelinelabs.conductor.RouterTransaction
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				|  | @@ -117,10 +116,6 @@ class SettingsAdvancedController : SettingsController() {
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				|  |  |  
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				|  |  |          var deletedFiles = 0
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				|  |  |  
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				|  |  | -        val ctrl = DeletingFilesDialogController()
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				|  |  | -        ctrl.total = files.size
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				|  |  | -        ctrl.showDialog(router)
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				|  |  | -
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				|  |  |          Observable.defer { Observable.from(files) }
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				|  |  |                  .doOnNext { file ->
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				|  |  |                      if (chapterCache.removeFileFromCache(file.name)) {
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				|  | @@ -129,50 +124,15 @@ class SettingsAdvancedController : SettingsController() {
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				|  |  |                  }
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				|  |  |                  .subscribeOn(Schedulers.io())
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				|  |  |                  .observeOn(AndroidSchedulers.mainThread())
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				|  |  | -                .subscribe({
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				|  |  | -                    ctrl.setProgress(deletedFiles)
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				|  |  | -                }, {
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				|  |  | +                .doOnError {
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				|  |  |                      activity?.toast(R.string.cache_delete_error)
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				|  |  | -                }, {
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				|  |  | -                    ctrl.finish()
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				|  |  | +                }
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				|  |  | +                .doOnCompleted {
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				|  |  |                      activity?.toast(resources?.getString(R.string.cache_deleted, deletedFiles))
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				|  |  |                      findPreference(CLEAR_CACHE_KEY)?.summary =
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				|  |  | -                            resources?.getString(R.string.used_cache, chapterCache.readableSize)
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				|  |  | -                })
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				|  |  | -    }
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				|  |  | -
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				|  |  | -    class DeletingFilesDialogController : DialogController() {
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				|  |  | -
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				|  |  | -        var total = 0
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				|  |  | -
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				|  |  | -        private var materialDialog: MaterialDialog? = null
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				|  |  | -
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				|  |  | -        override fun onCreateDialog(savedViewState: Bundle?): Dialog {
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				|  |  | -            return MaterialDialog.Builder(activity!!)
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				|  |  | -                    .title(R.string.deleting)
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				|  |  | -                    .progress(false, total, true)
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				|  |  | -                    .cancelable(false)
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				|  |  | -                    .build()
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				|  |  | -                    .also { materialDialog = it }
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				|  |  | -        }
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				|  |  | -
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				|  |  | -        override fun onDestroyView(view: View) {
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				|  |  | -            super.onDestroyView(view)
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				|  |  | -            materialDialog = null
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				|  |  | -        }
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				|  |  | -
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				|  |  | -        override fun onRestoreInstanceState(savedInstanceState: Bundle) {
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				|  |  | -            super.onRestoreInstanceState(savedInstanceState)
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				|  |  | -            finish()
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				|  |  | -        }
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				|  |  | -
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				|  |  | -        fun setProgress(deletedFiles: Int) {
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				|  |  | -            materialDialog?.setProgress(deletedFiles)
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				|  |  | -        }
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				|  |  | -
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				|  |  | -        fun finish() {
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				|  |  | -            router.popController(this)
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				|  |  | -        }
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				|  |  | +                        resources?.getString(R.string.used_cache, chapterCache.readableSize)
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				|  |  | +                }
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				|  |  | +                .subscribe()
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				|  |  |      }
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				|  |  |  
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				|  |  |      class ClearDatabaseDialogController : DialogController() {
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