public static String getExternalStoragePath() { // 獲取SdCard狀態(tài) String state = android.os.Environment.getExternalStorageState(); // 判斷SdCard是否存在并且是可用的 if (android.os.Environment.MEDIA_MOUNTED.equals(state)) { if (android.os.Environment.getExternalStorageDirectory().canWrite()) {   return android.os.Environment.getExternalStorageDirectory().getPath(); } } return null;}public static long getAvailableStore(String filePath) { // 取得sdcard文件路徑 StatFs statFs = new StatFs(filePath); // 獲取block的SIZE long blocSize = statFs.getBlockSize(); // 獲取BLOCK數(shù)量 // long totalBlocks = statFs.getBlockCount(); // 可使用的Block的數(shù)量 long availaBlock = statFs.getAvailableBlocks(); // long total = totalBlocks * blocSize; long availableSpare = availaBlock * blocSize; return availableSpare;}