//这时获取手机内存的             //  File path = Environment.getDataDirectory();　　       //这时获取SD卡的空间　　  File path = Environment.getExternalStorageDirectory();        StatFs  stat = new StatFs(path.getPath());        //获取内存块，既最小的内存块的大小        long blockSize = stat.getBlockSize();        long totalBlocks = stat.getBlockCount();        long avaibleBlocks = stat.getAvailableBlocks();                long totalSize = blockSize*totalBlocks;        long avaiSieze = avaibleBlocks*blockSize;        //得到总空间以及可用空间。        String totalStr = Formatter.formatFileSize(this, totalSize);        String avaiStr = Formatter.formatFileSize(this, avaiSieze);