Android context issues from imported package
<p>I have a twitter package that runs fine on its own. Now when I import it and try to use it in my main app I hit upon issues of nullpointerexceptions. The first I solved, but immediately ran into another. I now believe it is because I am handling the context incorrectly.</p>

<p>Here is how I have called one method from my included package.</p>

<pre><code>        TweetToTwitterActivity twitter = new TweetToTwitterActivity();
        twitter.buttonLogin(v, context);
</code></pre>

<p>Now in the TweetToTwitterActivity file I have this. The first method runs fine but I am now getting a null pointer exception from this line. I think I am going about this completely the wrong way. Can anyone help me understand how to run methods properly from an imported class?</p>

<blockquote>
  <p>setContentView(twitterSite);</p>
</blockquote>

<pre><code>public void buttonLogin(View v, Context context) {
    mPrefs = context.getSharedPreferences("twitterPrefs", MODE_PRIVATE);
    // Load the twitter4j helper
    mTwitter = new TwitterFactory().getInstance();

    // Tell twitter4j that we want to use it with our app
    mTwitter.setOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);
    if (mPrefs.contains(PREF_ACCESS_TOKEN)) {
        Log.i(TAG, "Repeat User");
        loginAuthorisedUser();
    } else {
        Log.i(TAG, "New User");
        loginNewUser(context);
    }
}
private void loginNewUser(Context context) {

    try {
        Log.i(TAG, "Request App Authentication");
        mReqToken = mTwitter.getOAuthRequestToken(CALLBACK_URL);

        Log.i(TAG, "Starting Webview to login to twitter");
        WebView twitterSite = new WebView(context);
        twitterSite.requestFocus(View.FOCUS_DOWN);
        twitterSite.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View v, MotionEvent event) {
                switch (event.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                    case MotionEvent.ACTION_UP:
                        if (!v.hasFocus()) {
                            v.requestFocus();
                        }
                        break;
                }
                return false;
            }
        });
        twitterSite.loadUrl(mReqToken.getAuthenticationURL());
        setContentView(twitterSite);

    } catch (TwitterException e) {
        Log.e("HelloWorld", "Error in activity", e);
        Toast.makeText(this, "Twitter Login error, try again later", Toast.LENGTH_SHORT).show();
    }
}
</code></pre>
