Problems writing to file android

Question

I'm trying to save some data to A file in android, I'm using herefor the internal storage of the android system. I looked it up on the developers guide of android and I came to this.

String FILENAME = "LangFile"; String data ="NL"; FileOutputStream fos = openFileOutput(FILENAME, Context.MODE_PRIVATE); fos.write(data.getBytes()); fos.close();

This is how I save it to the file.

String FILENAME = "LangFile"; String languege = "lang"; FileInputStream fos = openFileInput(FILENAME); fos.read(languege.getBytes()); fos.close(); if(languege=="NL"){ newgame.setText(R.string.dutchgames); stats.setText(R.string.duthstats); }

This is how I read from the same file, but if I run it it just gives an empty button?

waqaslam · Accepted Answer · 2012-03-27 11:28:05Z

You can't compare strings using ==, in fact you need to use either equals or equalsIgnoreCase methods. You also need to tweak your reading logic a little. Change your code as below:

FileInputStream fos = openFileInput(FILENAME); byte[] b = new byte[2]; //since lang-prefix should have at least length 2 fos.read(b); fos.close(); if(new String(b).equalsIgnoreCase("NZ")){ newgame.setText(R.string.dutchgames); stats.setText(R.string.duthstats); }

I tryed it on that way but it won't work still only the empty buttons
Your file reading logic is suspicious to me. Check my updated answer

Blackbelt · Accepted Answer · 2012-03-27 09:30:11Z

0

did you add the permission to write the internal storage?

 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

in your manifest.xml file

answered Mar 27, 2012 at 9:30

Blackbelt

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2 Comments

steve Over a year ago

Where do I place this line in the manifest between the aplication or just above this. And is it the same for the internal storage?

steve Over a year ago

It just stays the same, only empthy buttons

Relsell · Accepted Answer · 2012-03-27 09:51:46Z

if(languege=="NL"){ newgame.setText(R.string.dutchgames); stats.setText(R.string.duthstats); }

if condition is blocking from reading bytes from file. As == matches object references not their contents.

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