How to check if there is an external SD card?

Question

I used this to check if there is an external SD card before:

public static boolean externalMemoryAvailable() {
    return android.os.Environment.getExternalStorageState().equals(
            android.os.Environment.MEDIA_MOUNTED);
}

but it returns true and the path of the external SD card is "/storage/emulated/0 while my test machine(Mi Note Pro) does not have external SD card.So I wonder if there are other function to check the external SD card. Hope someone help me!Thanks!

score 2 · Answer 1 · edited May 23 '17 at 12:34

2

public boolean externalMemoryAvailable() {
    if (Environment.isExternalStorageRemovable()) {
      //device support sd card. We need to check sd card availability.
      String state = Environment.getExternalStorageState();
      return state.equals(Environment.MEDIA_MOUNTED) || state.equals(
          Environment.MEDIA_MOUNTED_READ_ONLY);
    } else {
      //device not support sd card. 
      return false;
    }
  }

This question has already been asked on Stack Overflow and has an answer here

edited May 23 '17 at 12:34

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1
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answered Jan 18 '17 at 03:35

Descoladan

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1
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perfect answer.... – AJay Jan 18 '17 at 03:37

score 0 · Answer 2 · answered Jan 18 '17 at 03:30

0

Hello you are on the right track..

just use

Environment.isExternalStorageRemovable()

to chek if it is actual sdcard or not. In morden devices internal storage is also consider as sdcard.

answered Jan 18 '17 at 03:30

AJay

1,183
9
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you are right,but this function can't work in some devices cause it returns false all the time – lixuan deng Jan 18 '17 at 08:31
@lixuandeng yeah that may be issue, but you can first check `ndroid.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED);` this and than check if it `isExternalStorageRemovable()` – AJay Jan 18 '17 at 09:38
you mean this? ` public static boolean externalMemoryAvailable() { if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { if (Environment.isExternalStorageRemovable()) return true; else return false; } else return false; }` – lixuan deng Jan 19 '17 at 01:52
yes you got that. – AJay Jan 19 '17 at 05:59

score 0 · Answer 3 · edited May 23 '17 at 10:29

0

Boolean isSDPresent = android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);

if(isSDPresent)
{
  // yes SD-card is present
}
else
{
 // Sorry
}

This question was solved at Check whether the SD card is available or not programmatically

edited May 23 '17 at 10:29

Community

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answered Jan 18 '17 at 03:34

Truong Hieu

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How to check if there is an external SD card?

3 Answers3