在MarshMallow中获取内部和外部内存大小

Question

我试图在我的应用程序中显示内部和外部（SD卡）内存的大小。我的代码适用于kitkat和api版本以下，但我的应用程序在Marshmallow或棒棒糖中崩溃。这是我的代码..

 public static long getAvailableInternalMemorySize() 

{
        File path = Environment.getDataDirectory();
        StatFs stat = new StatFs(path.getPath());
        long blockSize = stat.getBlockSize();
        long availableBlocks = stat.getAvailableBlocks();
        return availableBlocks * blockSize;
    }

    public static long getTotalInternalMemorySize() {
        File path = Environment.getDataDirectory();
        StatFs stat = new StatFs(path.getPath());
        long blockSize = stat.getBlockSize();
        long totalBlocks = stat.getBlockCount();
        return totalBlocks * blockSize;
    }

    public static long getAvailableExternalMemorySize() {


        String secStore = System.getenv("SECONDARY_STORAGE");
        File path = new File(secStore);
        StatFs stat = new StatFs(path.getPath());

        long blockSize = stat.getBlockSize();

        long availableBlocks = stat.getAvailableBlocks();

        long total = availableBlocks * blockSize;

        return total;
    }


    public static long getTotalExternalMemorySize() {

        String secStore = System.getenv("SECONDARY_STORAGE");
        File path = new File(secStore);
        StatFs stat = new StatFs(path.getPath());

        long blockSize = stat.getBlockSize();

        long availableBlocks = stat.getBlockCount();

        long total = availableBlocks * blockSize;


        return total;

    }

你能告诉我在上面api版本中获取内存大小的解决方案......？

Answer 1

在lolipop或marshmallo中你必须使用
的 Environment.getExternalStorageDirectory（）getAbsolutePath（）;

获取外部存储路径而不是 System.getenv（＆＃34; SECONDARY_STORAGE＆＃34;）;

请参阅beolw代码以获取＆gt; android 5.0

中的外部和内部存储空间

public static String getTotalInternalMemorySize() {
            File path = Environment.getDataDirectory();
            StatFs stat = new StatFs(path.getPath());
            long blockSize = stat.getBlockSize();
            long totalBlocks = stat.getBlockCount();
            return formatSize(totalBlocks * blockSize);
        }

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