Android 查看可用存储内存大小

45StatFs stat = new StatFs(path.getPath());

46long blockSize = stat.getBlockSize();

47long totalBlocks = stat.getBlockCount();

48return totalBlocks * blockSize;

49} else {

50return ERROR;

51}

52}

53

54static public String formatSize(long size) {

55String suffix = null;

56

57if (size >= 1024) {

58suffix = "KiB";

59size /= 1024;

60if (size >= 1024) {

61suffix = "MiB";

62size /= 1024;

63}

64}

65

66StringBuilder resultBuffer = new StringBuilder(Long.toString(size));

67

68int commaOffset = resultBuffer.length() - 3;

69while (commaOffset > 0) {

70resultBuffer.insert(commaOffset, ',');

71commaOffset -= 3;

72}

73

74if (suffix != null)

75resultBuffer.append(suffix);

76return resultBuffer.toString();

77}

78}

来个更简单的

view sourceprint? 01private void update() {

02File path = Environment.getExternalStorageDirectory();

03StatFs stat = new StatFs(path.getPath());

04long blockSize = stat.getBlockSize();

05long totalBlocks = stat.getBlockCount();

06long availableBlocks = stat.getAvailableBlocks();

07mTotalSize.setText(formatSize(totalBlocks * blockSize));

08mUsedSize.setText(formatSize((totalBlocks - availableBlocks) * blockSize));

09mAvailableSize.setText(formatSize(availableBlocks * blockSize));

10

11

12private String formatSize(long size) {

13return Formatter.formatFileSize(this, size);

14}