Reading properties file

Question

How do I read data from a file properties on Android? Follows my code from onCreate:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    File file = new File(getPackageName()+ "/dados.properties");
    Properties pp = new Properties();
    FileInputStream fis = null;
    try {       
        fis = new FileInputStream(file);
        pp.load(fis);
        fis.close();
    } catch (Exception e) { }
}

There’s always a mistake in fis = new FileInputStream(file);.

Answer 1

I recommend putting the file dados.properties in the briefcase res/raw. By putting in this folder you can get one InputStream for any file in this folder with that code:

public InputStream readRaw(Context context, int rawResId) {
    return context.getResources().openRawResource(rawResId);
}

If you want more details check out the documentation of Resources.openRawResource(int id)

Fitting in your code would look like:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Properties pp = new Properties();

    try {
        pp.load(readRaw(this, R.raw.dados));
    } catch (Exception e) { }
}

Answer 2

The path you are looking for is not this one. Take a look at the function getFilesDir, it will return the path of your application files (/data/data/your package).

Try something like:

File file = new File(getFilesDir().getAbsolutePath() + "/dados.properties");