建议增加获取存储空间

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/**
* 存储空间管理
*
*/
public class MemorySpaceCheck
{

/**
* 计算剩余空间
* @param path
* @return
*/
private static long getAvailableSize(String path)
{
StatFs fileStats = new StatFs(path);
fileStats.restat(path);
return (long) fileStats.getAvailableBlocks() * fileStats.getBlockSize(); // 注意与fileStats.getFreeBlocks()的区别
}

/**
* 计算总空间
* @param path
* @return
*/
private static long getTotalSize(String path)
{
StatFs fileStats = new StatFs(path);
fileStats.restat(path);
return (long) fileStats.getBlockCount() * fileStats.getBlockSize();
}

/**
* 计算SD卡的剩余空间
* @return 剩余空间
*/
public static long getSDAvailableSize()
{
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
{
return getAvailableSize(Environment.getExternalStorageDirectory().toString());
}

return 0;
}

/**
* 计算系统的剩余空间
* @return 剩余空间
*/
public static long getSystemAvailableSize()
{
// context.getFilesDir().getAbsolutePath();
return getAvailableSize("/data");
}

/**
* 是否有足够的空间
* @param filePath 文件路径，不是目录的路径
* @return
*/
public static boolean hasEnoughMemory(String filePath)
{
File file = new File(filePath);
long length = file.length();
if (filePath.startsWith("/sdcard") || filePath.startsWith("/mnt/sdcard"))
{
return getSDAvailableSize() > length;
}
else
{
return getSystemAvailableSize() > length;
}

}

/**
* 获取SD卡的总空间
* @return
*/
public static long getSDTotalSize()
{
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
{
return getTotalSize(Environment.getExternalStorageDirectory().toString());
}

return 0;
}

/**
* 获取系统可读写的总空间
* @return
*/
public static long getSysTotalSize()
{
return getTotalSize("/data");
}
}

No repository file or test is named. Start by locating the Android utility entry points and reviewing the proposed MemorySpaceCheck code, especially its StatFs and Environment usage; done means the project exposes available and total storage values for system and external storage and can check space for a file.

Written by the indexing model from the issue text.