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POUsing both SlidingActivityBase and SherlockFragmentActivity to create a Sliding Menu
 

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  1. POUsing both SlidingActivityBase and SherlockFragmentActivity to create a Sliding Menu
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    <p>I've been following this tutorial to create a sliding menu:</p> <p><a href="http://www.youtube.com/watch?v=LWTYQ2g597o" rel="nofollow">http://www.youtube.com/watch?v=LWTYQ2g597o</a></p> <p>And because Im using Sherlock, I had to change my class declaration from this:</p> <pre><code>public class BaseActivity extends SlidingFragmentActivity </code></pre> <p>to the following:</p> <pre><code>public class RggarbActionBar extends SherlockFragmentActivity implements SlidingActivityBase </code></pre> <p>and now Im getting a NullPointerException whenever I use the getSlidingMenu() method which stays empty down there in my class and returns null.</p> <p>Here is my whole class:</p> <pre><code>public class RggarbActionBar extends SherlockFragmentActivity implements SlidingActivityBase { protected ListFragment listFragment; @Override public boolean onCreateOptionsMenu(Menu menu) { listFragment = new RggarbSlidingMenu(); SlidingMenu slidingMenu = getSlidingMenu(); slidingMenu.setShadowWidth(15);//outsource these slidingMenu.setBehindOffset(60); slidingMenu.setFadeDegree(0.35f); slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN); MenuInflater inflater = getSupportMenuInflater(); this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); ActionBar actionBar = getSherlock().getActionBar(); actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#680e96"))); actionBar.setDisplayHomeAsUpEnabled(true); actionBar.setDisplayShowTitleEnabled(false); actionBar.setDisplayUseLogoEnabled(false); actionBar.setHomeButtonEnabled(true); actionBar.setIcon(R.drawable.logo_icon); inflater.inflate(R.menu.action_bar_items, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { int itemId = item.getItemId(); if(itemId == android.R.id.home) { toggle(); return true; } else if (itemId == R.id.abFeed) { Intent feed = new Intent(this, Home.class); startActivity(feed); return true; } else if (itemId == R.id.abNotifications) { Intent notifications = new Intent(this, Notifications.class); startActivity(notifications); return true; } else if (itemId == R.id.abAddNewItem) { Intent addNewItem = new Intent(this, ItemAdd.class); startActivity(addNewItem); return true; } else if (itemId == R.id.abSearch) { Intent search = new Intent(this, SearchItems.class); startActivity(search); return true; } else { return onOptionsItemSelected(item); //watch out for this one. if any problems occur change to "return true" } } public class BasePagerAdapter extends FragmentPagerAdapter{ private List&lt;Fragment&gt; mFragments = new ArrayList&lt;Fragment&gt;(); private ViewPager mPager; public BasePagerAdapter(FragmentManager fm, ViewPager vp){ super(fm); mPager = vp; mPager.setAdapter(this); for (int i = 0; i &lt; 3; i++){ addTab(new RggarbSlidingMenu()); } } public void addTab(Fragment frag){ mFragments.add(frag); } @Override public Fragment getItem(int position){ return mFragments.get(position); } @Override public int getCount(){ return mFragments.size(); } } @Override public void setBehindContentView(View view, LayoutParams layoutParams) { // TODO Auto-generated method stub } @Override public void setBehindContentView(View view) { // TODO Auto-generated method stub } @Override public void setBehindContentView(int layoutResID) { // TODO Auto-generated method stub } @Override public SlidingMenu getSlidingMenu() { // TODO Auto-generated method stub return null; } @Override public void toggle() { // TODO Auto-generated method stub } @Override public void showContent() { // TODO Auto-generated method stub } @Override public void showMenu() { // TODO Auto-generated method stub } @Override public void showSecondaryMenu() { // TODO Auto-generated method stub } @Override public void setSlidingActionBarEnabled(boolean slidingActionBarEnabled) { // TODO Auto-generated method stub } } </code></pre>
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