Question

In Android Development, how can we wipe out the whole SD card through coding? I need to format the SD card contents through my application.

Answer 1

I found the answer,
just call wipeMemoryCard();

public void wipeMemoryCard() {
    try {
        File deleteMatchingFile = new File(Environment.getExternalStorageDirectory().toString());
        File[] filenames = deleteMatchingFile.listFiles();
        if (filenames != null && filenames.length > 0) {
            for (File tempFile : filenames) {
                    if (tempFile.isDirectory()) {
                        wipeDirectory(tempFile.toString());
                    } else {
                        tempFile.delete()
                    }
            }
        }
    } catch (Exception e) {
    }
}

private void wipeDirectory(String name) {
    try {
        File directoryFile = new File(name);
        File[] filenames = directoryFile.listFiles();
        if (filenames != null && filenames.length > 0) {
            for (File tempFile : filenames) {
                    if (tempFile.isDirectory()) {
                        wipeDirectory(tempFile.toString());
                    } else {
                        tempFile.delete()
                    }
            }
        }
    } catch (Exception e) {
    }
}