How to use org.robovm.apple.foundation

@Override
public void error (String tag, String message) {
  Foundation.log("%@", new NSString("[error] " + tag + ": " + message));
}

  @Override
  public void flush () {
    NSAutoreleasePool pool = new NSAutoreleasePool();
    if (!nsDictionary.write(file, false)) {
      Gdx.app.debug("IOSPreferences", "Failed to write NSDictionary to file " + file);
    }
    pool.close();
  }
}

@Override
public Preferences putFloat (String key, float val) {
  nsDictionary.put(convertKey(key), NSNumber.valueOf(val));
  return this;
}

@Override
public Preferences putString (String key, String val) {
  nsDictionary.put(convertKey(key), new NSString(val));
  return this;
}

@Override
public boolean getBoolean (String key) {
  NSNumber value = (NSNumber)nsDictionary.get(convertKey(key));
  if (value == null) return false;
  return value.booleanValue();
}

@Override
public long getLong (String key) {
  NSNumber value = (NSNumber)nsDictionary.get(convertKey(key));
  if (value == null) return 0L;
  return value.longValue();
}

@Override
public float getFloat (String key) {
  NSNumber value = (NSNumber)nsDictionary.get(convertKey(key));
  if (value == null) return 0f;
  return value.floatValue();
}

@Override
public void log (String tag, String message) {
  Foundation.log("%@", new NSString("[info] " + tag + ": " + message));
}

@Override
public Preferences putBoolean (String key, boolean val) {
  nsDictionary.put(convertKey(key), NSNumber.valueOf(val));
  return this;
}

@Override
public Preferences putString (String key, String val) {
  nsDictionary.put(convertKey(key), new NSString(val));
  return this;
}

  @Override
  public void flush () {
    NSAutoreleasePool pool = new NSAutoreleasePool();
    if (!nsDictionary.write(file, false)) {
      Gdx.app.debug("IOSPreferences", "Failed to write NSDictionary to file " + file);
    }
    pool.close();
  }
}

@Override
public void error (String tag, String message) {
  Foundation.log("%@", new NSString("[error] " + tag + ": " + message));
}

@Override
public Preferences putFloat (String key, float val) {
  nsDictionary.put(convertKey(key), NSNumber.valueOf(val));
  return this;
}

@Override
public void debug (String tag, String message) {
  Foundation.log("%@", new NSString("[debug] " + tag + ": " + message));
}

@Override
public void debug (String tag, String message) {
  Foundation.log("%@", new NSString("[debug] " + tag + ": " + message));
}

@Override
public void log (String tag, String message) {
  Foundation.log("%@", new NSString("[info] " + tag + ": " + message));
}

@Override
public void log (String tag, String message, Throwable exception) {
  Foundation.log("%@", new NSString("[info] " + tag + ": " + message));
  exception.printStackTrace();
}

@Override
public void error (String tag, String message, Throwable exception) {
  Foundation.log("%@", new NSString("[error] " + tag + ": " + message));
  exception.printStackTrace();
}

  @Override
  public void debug (String tag, String message, Throwable exception) {
    Foundation.log("%@", new NSString("[debug] " + tag + ": " + message));
    exception.printStackTrace();
  }
}

  @Override
  public void debug (String tag, String message, Throwable exception) {
    Foundation.log("%@", new NSString("[debug] " + tag + ": " + message));
    exception.printStackTrace();
  }
}