CODEWITHSUNDEEP
javaandroidfile
Kanagalingam
Kanagalingam

Reputation: 2184

How to check whether a file exists in (Internal/External storage) by using file name?

I have been working on a project where I will get a filename from API and have to check whether the file is present in the device and play it.

I am getting Screenshot.jpg as filename from API and under the same name a file is present in my storage.

But when I used the piece of code, I have been returned false. I have checked with other codes also. 

public boolean isFilePresent(String fileName) {
    String path = this.getFilesDir().getAbsolutePath() + "/" + fileName;
    File file = new File(path);
    return file.exists();
}

where am I going wrong? Any help would be greatly appreciated!

Upvotes: 0

Views: 999

Answers (3)

Basil Battikhi
Basil Battikhi

Reputation: 2668

Use Environment.getExternalStorageDirectory() this is how you get the files directory

then you will add your files path after it, so you should do something like this

if(!new File(Environment.getExternalStorageDirectory().toString()+"/myFolder/"+"myFile").exist())
{
// file is not exist
}

remember to check the runtime permission because it's a special permission

Upvotes: 0

GuyKhmel
GuyKhmel

Reputation: 505

Probably, what you do wrong is using this.getFilesDir().

Instead, use Environment.getExternalStorageDirectory().toString() for example, it's all dependant on where your file is.

Like I said before, debug it yourself, print (or present a toast) with the 'expected' file path, then verify it doesn't exist

Upvotes: 1

Thomas Mary
Thomas Mary

Reputation: 1579

Try something like that :

public boolean isFilePresent(Context context, String fileName) {
    File dirFiles = context.getFilesDir();

    File[] filesArray = dirFiles.listFiles();

    for (File file : filesArray) {
        if (file.getName().equals(fileName)) {
            return true;
        }
    }

    return false;
}

Upvotes: 0

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