Android Open Source - ProjectStudio Tasks Fragment

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License

The source code is released under:
Apache License
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Java Source Code

package fragments;
/*from   ww w .  jav  a  2s  .  co m*/
import android.app.ActionBar;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.PagerTabStrip;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;

import com.example.uniutilproject.R;

import java.lang.reflect.Field;

import adapters.TasksTabPagerAdapter;

/**
 * Created by desmond on 1/21/14.
 *
 */
public class TasksFragment extends Fragment {

    private DrawerLayout parent_drawer;
    private ViewPager viewpager;
    private ActionBar actionbar;
    private TasksTabPagerAdapter mAdapter;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.tasks_fragment_view, container, false);


        //IF DRAWER HAS BEEN DISABLED BY SOME OTHER FRAGMENT
        //ENABLE DRAWER
        parent_drawer = (DrawerLayout) getActivity().findViewById(R.id.drawer_layout);
        if (parent_drawer.getDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED) == 0) {
            parent_drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
        }

        //IN THIS CASE DRAWER HAS BEEN DISABLED TO PREVENT CONFLICT WITH SWIPE VIEW
        parent_drawer = (DrawerLayout) getActivity().findViewById(R.id.drawer_layout);
        parent_drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);

        //CHANGE THE COLOR OF THE TAB STRIP
        PagerTabStrip pagerTabStrip = null;
        if (view != null) {
            pagerTabStrip = (PagerTabStrip) view.findViewById(R.id.tasks_pagerTabStrip);

        }
        assert pagerTabStrip != null;
        //pagerTabStrip.setDrawFullUnderline(true);
        pagerTabStrip.setTabIndicatorColorResource(R.color.actionbar_color);

        //INFLATE VIEWS HERE
        viewpager = (ViewPager) view.findViewById(R.id.tasks_view_pager);


        //INITIALIZATION
        //actionbar = getActivity().getActionBar();
        mAdapter = new TasksTabPagerAdapter(getChildFragmentManager());
        viewpager.setAdapter(mAdapter);

        return view;
    }

    @Override
    public void onDetach() {
        super.onDetach();
        try {
            Field childFragmentManager = Fragment.class.getDeclaredField("mChildFragmentManager");
            childFragmentManager.setAccessible(true);
            childFragmentManager.set(this, null);
        } catch (NoSuchFieldException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }

    // Register the fragment as a contributor to the Options Menu
    // call setHasOptions within its onCreate Handler
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
    }

    // add a menu item when this fragment is called
    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        // custom menu (action bar layout)
        inflater.inflate(R.menu.task_menu, menu);

    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        super.onOptionsItemSelected(item);

        // Find which menu item has been selected
        switch (item.getItemId()) {
            // Check for each known menu item
            case R.id.task_menu_addbtn:
                showChildFragment();
                return true;
            // Return false if the menu item has not been handled
            default:
                return false;
        }
    }

    //
    private void showChildFragment() {
        FragmentManager fm = getFragmentManager();
        AddTaskFragment frag = new AddTaskFragment();
        FragmentTransaction transaction = fm.beginTransaction();

        // For a little polish, specify a transition animation
        transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
        transaction.replace(((ViewGroup) getView().getParent()).getId(), frag).addToBackStack(null).commit();
    }

    //REMOVE THE THREE DOT ICON FROM THE ACTIONBAR, SINCE IT IS NOT NEEDED FOR NOW
    @Override
    public void onPrepareOptionsMenu(Menu menu) {
        MenuItem item = menu.findItem(R.id.action_settings);
        item.setVisible(false);
        super.onPrepareOptionsMenu(menu);
    }
}
Java Source Code List
