phone-tablet-master-detail

This is a basic example of using a Fragment to achieve a master-detail type layout on tablets

The fragment is included using the diagram above. Tablets are detected by using two layout files:

/res/layout/activity_main.xml (phone layout)
/res/layout-sw600dp-land/activity_main.xml (tablet layout)

In the MainActivity class, a tablet can be detected by checking if a view in the xml exists and either starting the activity (phones) or include the Fragment (tablets)

    // check if in dual view mode (fragment exists)
    if (findViewById(R.id.fragmentLayout) == null) {
        // standard phone display
        Intent i = new Intent(this, DetailActivity.class);
        this.startActivity(i);
    } else {
        // horisontal tablet mode
        getFragmentManager()
                .beginTransaction()
                .replace(R.id.fragmentLayout, new DetailFragment()) // .replace or .add
                .commit();
    }