Translate in Android using Google API-Collection of common programming errors

I want to create a translate app in Android,i use Google Translate API,but it has error,please help me for fix it. This is my code

public void onClick(View v) {
        // TODO Auto-generated method stub
        String InputString;
        String OutputString = null;
        InputString = InputText.getText().toString();

        try {

            Translate.setHttpReferrer("http://translate.google.com.vn/");
            OutputString = Translate.DEFAULT.execute(InputString, Language.ENGLISH, Language.VIETNAMESE);    ////////

        } catch (Exception ex) {
            ex.printStackTrace();
            OutputString = "Error";

        }

        OutputText.setText(OutputString);               
    }   

Here is my Manifest

Error in line Translate.setHttpReferrer(“http://translate.google.com.vn/”);

The method setHttpReferrer(String) is undefined for the type Translate