How to get right path files in android

Question

My code is following::

Scanner sc = null;
try {
    sc = new Scanner(new File("assets/mainmenu/readSourceFile.txt"));
} catch (FileNotFoundException e1) {
    // TODO Auto-generated catch block
    System.out.println(e1.toString());
    e1.printStackTrace();
}

Then, logcat show exception java.io.FileNotFoundException

How can I find my file? I tried

sc = new Scanner(new File("mainmenu/readSourceFile.txt"));

However, it's still throw FilenotFoundException

My file is in folder assets/mainmenu/readSourceFile.txt

and I've try this::

private InputStream is;
try {
        is = this.getResources().getAssets().open("mainmenu/readSourceFile.txt");
    } catch (IOException e) {
        e.toString();
    }

I use getAssets to access assets file in android. However, how can I suppose to read text file if I use InputStream

Is all your directories are located in the same project ? if so just give your path as ./assets/mainmenu/readSourceFile.txt.. — thar45, Dec 21 '12 at 04:17
./assets/mainmenu/readSourceFile.txt got Exception `java.io.FileNotFoundException:/./asset/mainmenu/readSourceFile.txt` — barssala, Dec 21 '12 at 04:24

score 1 · Answer 1 · edited May 23 '17 at 10:24

1

You try this...Hope it will work

sc = new Scanner(new File("file:///android_asset/mainmenu/readSourceFile.txt");

Edit try this

AssetFileDescriptor descriptor = getAssets().openFd("mainmenu/readSourceFile.txt");
FileReader reader = new FileReader(descriptor.getFileDescriptor());

Copied from here Asset folder path

edited May 23 '17 at 10:24

Community

1
1

answered Dec 21 '12 at 04:15

vnshetty

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Sorry, but i got `FileNotFoundException` – barssala Dec 21 '12 at 04:19
for more information. java.io.FileNotFoundException:/file:/android_asset/mainmenu/readSourceFile.txt – barssala Dec 21 '12 at 04:26

quietmint · Answer 2 · 2012-12-21T05:29:03.920

You can't access the assets folder of your Android application as if they were regular files on the file system (hint: they're not). Instead, you need to use AssetManager.Call getAssets() on your activity/application context to get the AssetManager.

Once you have this, you can use open("mainmenu/readSourceFile.txt") to obtain an InputStream.

You can now read this InputStream like you would any other. Apache Commons IO is a great library for working with input and output streams. Depending on how you want to get the data, you could try:

Read the entire file into a String:

try {
    String contents = IOUtils.toString(in);
} finally {
    IOUtils.closeQuietly(in);
}

Read the entire file into a list of Strings, one per line:

try {
    List<String> lines = IOUtils.readLines(in);
} finally {
    IOUtils.closeQuietly(in);
}

Iterate through the file one line at a time:

try {
    LineIterator it = IOUtils.lineIterator(in, "UTF-8");
    while (it.hasNext()) {
        String line = it.nextLine();
        // do something with line
    }
} finally {
    IOUtils.closeQuietly(in);
}

I tried `InputStream` and I can open file now. But I don't know how to read text files if I use `InputStream` — barssala, Dec 21 '12 at 04:39
[Apache Commons IO](http://commons.apache.org/io/description.html) makes this easy. Download `commons-io-2.4.jar` and add it to your Java Build Path, then you can read the file in one shot: `String mContents = IOUtils.toString(mInputStream)`. This link also shows how to do the same thing "manually" (`InputStream` -> `InputStreamReader` -> `BufferedReader` -> loop) if you don't want to use `IOUtils` for some reason... — quietmint, Dec 21 '12 at 04:47

score 0 · Answer 3 · answered Apr 30 '13 at 15:13

I had the same issue. I noticed that the file should not include the hierarchy. This worked for me if someone had the same issue in future. `

    InputStream is=null;

    try {
        is=activity.getAssets().open("fileInAssets.dat");
    } catch (IOException e1) {
        Log.e(TAG, "Erro while openning hosts file.");
        e1.printStackTrace();
    }

`

How to get right path files in android

3 Answers3