Android: A collection of utility methods to calculate the size of a Bundle.

BundleSizeUtils.java

public static void logBundleState(Class<?> klass, Context context, Bundle outState) {
	int size = getBundleSizeInBytes(outState);
	String humanReadableSize = android.text.format.Formatter.formatFileSize(context, size);
	Log.d(klass.getName(), "onSaveInstanceState >>> " + "bundle = " + humanReadableSize + " (" + size + " bytes)");
}

public static int getBundleSizeInBytes(Bundle bundle) {
	Parcel parcel = Parcel.obtain();
	parcel.writeValue(bundle);
	byte[] bytes = parcel.marshall();
	parcel.recycle();
	return bytes.length;
}

public static String humanReadableByteCount(long bytes, boolean si) {
	int unit = si ? 1000 : 1024;
	if (bytes < unit) {
		return bytes + " B";
	}
	int exp = (int) (Math.log(bytes) / Math.log(unit));
	String pre = (si ? "kMGTPE" : "KMGTPE").charAt(exp - 1) + (si ? "" : "i");
	return String.format("%.1f %sB", bytes / Math.pow(unit, exp), pre);
}