安卓得到内部/外部存储器的剩余空间 [英] Android get free size of internal/external memory

问题描述

我想获得免费的内存的大小在我的设备的内部/外部存储编程。我使用的这块code：

I want to get the size of free memory on internal/external storage of my device programmatically. I'm using this piece of code :

StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());
long bytesAvailable = (long)stat.getBlockSize() *(long)stat.getBlockCount();
long megAvailable = bytesAvailable / 1048576;
Log.e("","Available MB : "+megAvailable);

File path = Environment.getDataDirectory();
StatFs stat2 = new StatFs(path.getPath());
long blockSize = stat2.getBlockSize();
long availableBlocks = stat2.getAvailableBlocks();
String format =  Formatter.formatFileSize(this, availableBlocks * blockSize);
Log.e("","Format : "+format);

和它我得到的结果是：

11-15 10:27:18.844: E/(25822): Available MB : 7572
11-15 10:27:18.844: E/(25822): Format : 869MB

现在的问题是，我想要得到的SD卡的可用内存是 1,96GB 现在。我怎样才能解决这个问题code这样我就可以得到免费的大小？

The problem is that I want to get the free memory of SdCard which is 1,96GB right now. How can I fix this code so I can get the free size ?

推荐答案

这是我做的方式：

StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());
long bytesAvailable = (long)stat.getBlockSize() * (long)stat.getAvailableBlocks();
long megAvailable = bytesAvailable / (1024 * 1024);
Log.e("","Available MB : "+megAvailable);

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