title: DemoActivity.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details
body: <p>i get the following error in my gradle console. Tried looking for the deprecated API but couldn't find it. Thanks in advance!!!</p>
  
  <p>Error: 
  DemoActivity.java uses or overrides a deprecated API. Note: Recompile with 
  -Xlint:deprecation for details.</p>
  
  <pre><code>public class BaseActivity extends ActionBarActivity {
  private static final String TAG = "DemoActivity";
  DrawerLayout mDrawerlDrawerLayout;
  FrameLayout actContent;
  private LinearLayout linear;
  private ActionBarDrawerToggle actionBarToggle;
  private Toolbar toolbar;
  private ImageView mImageView;
  private int height;
  private SlidingUpPanelLayout mSlidingUpPanelLayout;
  private ListView drawerListView;
  private ArrayAdapter&lt;String&gt; navigationDrawerAdapter;
  private String[] drawerItem = {"Email", "Wink", "Favourite", "Match me", "About"};
  
      @Override
      public void setContentView(final int layoutResID) {
      // TODO Auto-generated method stub
  
  
      linear = (LinearLayout) getLayoutInflater().inflate(R.layout.base_activity, null);
      actContent = (FrameLayout) linear.findViewById(R.id.frame_container);
      mDrawerlDrawerLayout = (DrawerLayout) linear.findViewById(R.id.drawer_layout);
      // set the drawer layout as base_activity content view of Activity.
  
  
      toolbar = (Toolbar) linear.findViewById(R.id.main_toolbar);
      setSupportActionBar((Toolbar) linear.findViewById(R.id.main_toolbar));
      toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
          @Override
          public boolean onMenuItemClick(MenuItem item) {
              return true;
          }
      });
      // Inflate a menu to be displayed in the toolbar
      toolbar.inflateMenu(R.menu.demo);
      //toolbar.getBackground().setAlpha(0);
      getSupportActionBar().setDisplayHomeAsUpEnabled(true);
      getSupportActionBar().setHomeButtonEnabled(true);
      getSupportActionBar().setDisplayShowTitleEnabled(false);
  
      setContentView(linear);
      // add layout of BaseActivities inside framelayout.i.e. frame_container
      getLayoutInflater().inflate(layoutResID, actContent, true);
  
      initDrawerView();
      initDrawer();
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.demo, menu);
  
      return true;
  }
  
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
      return super.onPrepareOptionsMenu(menu);
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      Log.e("Drawer", "clicked");
      if (actionBarToggle.onOptionsItemSelected(item)) {
          Log.e("Drawer item clicked", "clicked");
          return true;
      }
  
      if (item.getItemId() == android.R.id.home) {
          Log.e("Drawer item clicked item id", "clicked");
          try {
              if (mDrawerlDrawerLayout.isDrawerOpen(drawerListView)) {
                  mDrawerlDrawerLayout.closeDrawer(drawerListView);
              } else {
                  mDrawerlDrawerLayout.openDrawer(drawerListView);
              }
          } catch (Exception e) {
              e.printStackTrace();
          }
          return true;
      }
      switch (item.getItemId()) {
          case R.id.action_search: {
              return true;
          }
          case R.id.action_settings: {
              return true;
          }
  
      }
      return super.onOptionsItemSelected(item);
  }
  
  private void initDrawerView() {
      drawerListView = (ListView) findViewById(R.id.list_slidermenu);
      mDrawerlDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
      navigationDrawerAdapter = new ArrayAdapter&lt;String&gt;(BaseActivity.this,   
  android.R.layout.simple_list_item_1, drawerItem);
      drawerListView.setAdapter(navigationDrawerAdapter);
      drawerListView.setOnItemClickListener(new DrawerItemClickListener());
  }
  
  private void initDrawer() {
      actionBarToggle = new ActionBarDrawerToggle(BaseActivity.this, mDrawerlDrawerLayout, toolbar, 
  R.string.open_drawer, R.string.close_drawer) {
  
          @Override
          public void onDrawerClosed(View drawerView) {
              super.onDrawerClosed(drawerView);
  
          }
  
          @Override
          public void onDrawerOpened(View drawerView) {
              super.onDrawerOpened(drawerView);
          }
      };
      mDrawerlDrawerLayout.setDrawerListener(actionBarToggle);
  }
  
  @Override
  protected void onPostCreate(Bundle savedInstanceState) {
      super.onPostCreate(savedInstanceState);
      actionBarToggle.syncState();
  }
  
  @Override
  public void onConfigurationChanged(Configuration newConfig) {
      super.onConfigurationChanged(newConfig);
      actionBarToggle.onConfigurationChanged(newConfig);
  }
  
  private class DrawerItemClickListener implements ListView.OnItemClickListener {
      @Override
      public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) {
          try {
              Log.e("Drawer item click", "click");
              mDrawerlDrawerLayout.closeDrawers();
          } catch (Exception ex) {
              ex.printStackTrace();
          }
          }
      }
  }
  </code></pre>