Check if file exists on SD card on Android

Question

I want to check if a text file exists on the SD card. The file name is mytextfile.txt. Below is the code:

FileOutputStream fos = openFileOutput("sdcard/mytextfile.txt", MODE_WORLD_WRITEABLE);

How can I check whether this file exists?

Ljdawson · Accepted Answer · 2013-09-04T17:15:42.030

50

This should do the trick, I've replaced the hard coded SDcard reference to the recommended API call getExternalCacheDir():

File file = new File(getExternalCacheDir(), "mytextfile.txt" );
if (file.exists()) {
  //Do action
}

edited Sep 04 '13 at 17:15

answered Oct 08 '11 at 15:07

Ljdawson

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please note: getExternalCacheDir() may not be what you want. If you are wanting a directory on sd that will be cleared up after app is uninstalled (e.g. a 'cache' dir), use getExternalCacheDir(). But if you want the top level dir of the sd card, then you may be better using: File sdDir = new File(Environment.getExternalStorageDirectory().getPath()); – DEzra Aug 21 '14 at 12:49

score 2 · Answer 2 · answered Jun 13 '13 at 10:53

2

*Using this you can check the file is present or not in sdcard *

File file = new File(sdcardpath+ "/" + filename);
if (file.exists())
 {

}

answered Jun 13 '13 at 10:53

Neelaganda Moorthy

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score 2 · Answer 3 · edited Sep 06 '12 at 20:17

2

See this file System in android : Working with SDCard’s filesystem in Android

you just check

if(file.exists()){
//
}

edited Sep 06 '12 at 20:17

prayagupa

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answered Oct 08 '11 at 15:05

Samir Mangroliya

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Arunprabu · Answer 4 · 2013-05-23T07:20:55.207

0

check IF condition with Boolean type like

File file = new File(path+filename);
if (file.exists() == true)
{
//Do something
}

edited May 23 '13 at 07:20

answered May 23 '13 at 07:11

Arunprabu

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`== true` in the code above is redondant. You could use `if (file.exists())` instead. – Slander Apr 17 '16 at 06:09

score 0 · Answer 5 · answered Oct 08 '11 at 15:08

0

You have to create a file, and set it to be the required file, and check if it exists.

String FILENAME="mytextfile.txt";
File fileToCheck = new File(getExternalCacheDirectory(), FILENAME);
if (fileToCheck.exists()) {
FileOutputStream fos = openFileOutput(&quot;sdcard/mytextfile.txt&quot;, MODE_WORLD_WRITEABLE);
}

Have Fun!

answered Oct 08 '11 at 15:08

RE6

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It's best not to use the hard coded reference to the SD card, see my earlier answer for a better way to access the external storage. – Ljdawson Oct 08 '11 at 15:10

score 0 · Answer 6 · edited May 23 '17 at 12:34

0

The FileOutputStream constructor will throw a FileNotFound exception if the specified file doesn't exist. See the Oracle documentation for more information.

Also, make sure you have permission to access the SD card.

edited May 23 '17 at 12:34

Community

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answered Oct 08 '11 at 15:09

Zach Rattner

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Check if file exists on SD card on Android

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