Read filename that is not hard coded from sd card

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With this code, I am able to read an xml file:

try {

    String file = Environment.getExternalStorageDirectory() + "/XML/coordinates.xml";
    XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
    factory.setNamespaceAware(true);
    XmlPullParser parser = factory.newPullParser();
    FileInputStream fis = new FileInputStream(file);
    parser.setInput(new InputStreamReader(fis));

    int eventType = parser.getEventType();


    while (eventType != XmlPullParser.END_DOCUMENT && !done) {
        . . .  
        . . . 
        . . .   
}
}

But what I want is for the filename to be not hard coded as I may not know the filename. Though I know the file extension and where it is located. What should I add in the code? TIA

asked 1 min ago

LadyWinter

45

Read filename that is not hard coded from sd card