关于安卓获取内存大小的相应知识

private void getDevTotalSize(String paths) {//eg:"/dev"
		File path = new File(paths);
        Log.d(TAG, "path="+path.toString());
        StatFs stat = new StatFs(path.getPath());  
        long total = stat.getTotalBytes();
        long available = stat.getAvailableBytes();
    } 

private String getTotalSize(long volume){//最后将值格式化
		return Formatter.formatFileSize(MainActivity.this, volume);
	}