Navigation Drawer: set as always opened on tablets

Based on the idea of larger devices could have different layout files, I have created the follow project.

https://github.com/jiahaoliuliu/ABSherlockSlides

HighLights:

Since the drawer of a large device is always visible, there is not need to have an drawer. Instead, a LinearLayout with two elements with the same name will be enough.

<LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="horizontal">
     <ListView
             android:id="@+id/listview_drawer"
             android:layout_width="@dimen/drawer_size"
             android:layout_height="match_parent"
             android:layout_gravity="start"
             android:choiceMode="singleChoice"
             android:divider="@android:color/transparent"
             android:dividerHeight="0dp"
             android:background="@color/drawer_background"/>
    <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginLeft="@dimen/drawer_content_padding"
            />
</LinearLayout>

Because we don’t have the drawer in the layout file, when the app try to find the element in the layout, it will return null. So, there is not need to have an extra boolean to see which layout is using.

DrawerLayout mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);

if (mDrawerLayout != null) {
    // Set a custom shadow that overlays the main content when the drawer opens
    mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
    // Enable ActionBar app icon to behave as action to toggle nav drawer
    getSupportActionBar().setHomeButtonEnabled(true);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    // ActionBarDrawerToggle ties together the proper interactions
    // between the sliding drawer and the action bar app icon
    mDrawerToggle = new ActionBarDrawerToggle(
            this,
            mDrawerLayout,
            R.drawable.ic_drawer,
            R.string.drawer_open,
            R.string.drawer_close) {

        public void onDrawerClosed(View view) {
            super.onDrawerClosed(view);
        }

        public void onDrawerOpened(View drawerView) {
            // Set the title on the action when drawer open
            getSupportActionBar().setTitle(mDrawerTitle);
            super.onDrawerOpened(drawerView);
        }
    };

    mDrawerLayout.setDrawerListener(mDrawerToggle);
}

Here is the example to use it as boolean.

@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    if (mDrawerLayout != null) {
        mDrawerToggle.syncState();
    }
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    if (mDrawerLayout != null) {
        // Pass any configuration change to the drawer toggles
        mDrawerToggle.onConfigurationChanged(newConfig);
    }
}