protected StorageInfo GetStorageInformation(string path)
{
StorageInfo storageInfo = new StorageInfo();
Android.OS.StatFs stat = new Android.OS.StatFs(path); //"/storage/sdcard1"
long totalSpaceBytes = 0;
long freeSpaceBytes = 0;
long availableSpaceBytes = 0;
/*
* We have to do the check for the Android version, because the OS calls being made have been deprecated for older versions.
* The ‘old style’, pre Android level 18 didn’t use the Long suffixes, so if you try and call use those on
* anything below Android 4.3, it’ll crash on you, telling you that that those methods are unavailable.
* http://blog.wislon.io/posts/2014/09/28/xamarin-and-android-how-to-use-your-external-removable-sd-card/
*/
if (Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.JellyBeanMr2)
{
long blockSize = stat.BlockSizeLong;
totalSpaceBytes = stat.BlockCountLong * stat.BlockSizeLong;
availableSpaceBytes = stat.AvailableBlocksLong * stat.BlockSizeLong;
freeSpaceBytes = stat.FreeBlocksLong * stat.BlockSizeLong;
}
else
{
totalSpaceBytes = (long)stat.BlockCount * (long)stat.BlockSize;
availableSpaceBytes = (long)stat.AvailableBlocks * (long)stat.BlockSize;
freeSpaceBytes = (long)stat.FreeBlocks * (long)stat.BlockSize;
}
storageInfo.TotalSpace = totalSpaceBytes;
storageInfo.AvailableSpace = availableSpaceBytes;
storageInfo.FreeSpace = freeSpaceBytes;
return(storageInfo);
}
public float FreeMemory()
{
Android.OS.StatFs statFs = new Android.OS.StatFs(Android.OS.Environment.RootDirectory.AbsolutePath);
var storage = GetStorageInformation(Android.OS.Environment.RootDirectory.AbsolutePath);
long Free = (statFs.AvailableBlocksLong * statFs.BlockSizeLong);
//Android.OS.Environment.DataDirectory.AbsolutePath
//Android.OS.Environment.ExternalStorageDirectory.Path
Android.OS.StatFs stat = new Android.OS.StatFs(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal));
long blockSize = stat.BlockSizeLong;
long availableBlocks = stat.AvailableBlocksLong;
long Free2 = (stat.AvailableBlocksLong * stat.BlockSizeLong);
return(Free2 / 1024F / 1024F);
}
