Android獲得內部/外部內存的空閑大小我希望以編程方式在設備的內部/外部存儲上獲得空閑內存的大小。我在使用這段代碼：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);我得到的結果是：11-15 10:27:18.844: E/(25822): Available MB : 757211-15 10:27:18.844: E/(25822): Format : 869MB問題是，我想獲得sdCard的空閑內存，這是1,96GB現在就來。我怎樣才能修正這段代碼，才能得到自由大小呢？
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瀟湘沐
TA貢獻1816條經驗 獲得超6個贊
StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());long bytesAvailable;if (android.os.Build.VERSION.SDK_INT >=
android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
bytesAvailable = stat.getBlockSizeLong() * stat.getAvailableBlocksLong();}else {
bytesAvailable = (long)stat.getBlockSize() * (long)stat.getAvailableBlocks();}long megAvailable = bytesAvailable / (1024 * 1024);
Log.e("","Available MB : "+megAvailable);- 3 回答
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