判斷sd卡是否存在：

public static boolean externalMemoryAvailable() {return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);}

獲取手機內部儲存空間：

public long getTotalMemo(){File path = Environment.getDataDirectory();StatFs stat = new StatFs(path.getPath());long blockSize = stat.getBlockSize();long totalBlocks = stat.getBlockCount();return totalBlocks * blockSize; } 獲取手機內部剩余存儲空間：

public long getRemainMemo(){File path = Environment.getDataDirectory();StatFs stat = new StatFs(path.getPath());long blockSize = stat.getBlockSize();long availableBlocks = stat.getAvailableBlocks();return availableBlocks * blockSize;} 獲取sd卡總存儲空間：

public static long getTotalExternalMemorySize() {if (externalMemoryAvailable()) {File path = Environment.getExternalStorageDirectory();StatFs stat = new StatFs(path.getPath());long blockSize = stat.getBlockSize();long totalBlocks = stat.getBlockCount();return totalBlocks * blockSize;} else {return ERROR;}} }

獲取sd卡剩余空間：

public static long getAvailableExternalMemorySize() {if (externalMemoryAvailable()) {File path = Environment.getExternalStorageDirectory();StatFs stat = new StatFs(path.getPath());long blockSize = stat.getBlockSize();long availableBlocks = stat.getAvailableBlocks();return availableBlocks * blockSize;} else {return ERROR;}}

原文地址： http://blog.163.com/hero_213/blog/static/39891214201162123236660/

總結

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