Delete cache image

DeleteFile.kt

val outputDirectory = File(applicationContext.filesDir, OUTPUT_PATH)
            if (outputDirectory.exists()) {
                val entries = outputDirectory.listFiles()
                if (entries != null) {
                    for (entry in entries) {
                        val name = entry.name
                        if (name.isNotEmpty() && name.endsWith(".png")) {
                            val deleted = entry.delete()
                            Timber.i("Deleted $name - $deleted")
                        }
                    }
                }
            }

source https://developer.android.com/codelabs/android-workmanager#5