『Android』 获取文件系统剩余空间

关键类：android.os.StatFs

获取sdcard剩余空间：

import android.os.StatFs;

            String storageDirectory = Environment
                    .getExternalStorageDirectory().toString();
            StatFs stat = new StatFs(storageDirectory);
            long remaining = (long) stat.getAvailableBlocks()
                    * (long) stat.getBlockSize();