Core Operational Logic

• Access the root directory containing the target files.
• Iterate through entries and apply extension-based filters.
• Execute removal commmands and handle potential I/O failures.

Implementation Details

To achieve robust performence, the following utility method consolidates the scanning and deletion workflow. It utilizes the Java File API to traverse directories and verify file attributes before attempting any modification.

public void executeDiskMaintenance(Context context) {
    // Retrieve the public external storage path safely
    File baseDirectory = Environment.getExternalStorageDirectory();
    
    if (baseDirectory != null && baseDirectory.canRead()) {
        String[] extensionsToRemove = { ".tmp", ".cache", ".log" };
        
        // Traverse all items in the directory
        File[] candidateEntries = baseDirectory.listFiles();
        
        if (candidateEntries != null) {
            for (File currentEntry : candidateEntries) {
                String fileName = currentEntry.getName();
                
                // Apply filter logic to select removable candidates
                boolean shouldBeRemoved = false;
                for (String ext : extensionsToRemove) {
                    if (fileName.endsWith(ext)) {
                        shouldBeRemoved = true;
                        break;
                    }
                }
                
                // Attempt secure removal if conditions match
                if (shouldBeRemoved) {
                    try {
                        if (currentEntry.delete()) {
                            android.util.Log.d("CleanupUtils", 
                                "Successfully purged: " + fileName);
                        } else {
                            android.util.Log.e("CleanupUtils", 
                                "Deletion failed: " + fileName);
                        }
                    } catch (SecurityException e) {
                        android.util.Log.w("CleanupUtils", 
                            "Permission denied for access");
                    }
                }
            }
        }
    }
}

Ensure that your application manifest declares the necessary privileges required to read or modify external storage. With out proper authorization, listFiles may return null or trigger runtime exceptions on restricted OS versions.