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POLoad custom fragments in Navigation-Drawer's drawer and open corresponding fragments in the main layout
 

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  1. POLoad custom fragments in Navigation-Drawer's drawer and open corresponding fragments in the main layout
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    <p>I want to load different fragments in my drawer, depending upon some condition. Say:</p> <pre><code>if(bit =0){ load fragment0(); } else if(bit =1){ load fragment1(); } </code></pre> <p>And each fragment(fragment0 &amp; fragment1) contains its own list of items and buttons/views. Then depending upon the item click in the drawer fragment, I want to load the corresponding fragment in the main layout. Below is the code I'm using:</p> <p>This is the main activity that loads different fragments in the drawer</p> <pre><code>public class LaunchActivity extends FragmentActivity { private DrawerLayout DrawerLayout; //private ListView DrawerList; private FrameLayout DrawerList; private ActionBarDrawerToggle DrawerToggle; @SuppressWarnings("unused") private CharSequence DrawerTitle; private CharSequence Title; private String[] ListTitles; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.drawerlist_test); Title = DrawerTitle = getTitle(); ListTitles = getResources().getStringArray(R.array.list_array); DrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); //DrawerList = (ListView) findViewById(R.id.left_drawer); DrawerList = (FrameLayout) findViewById(R.id.left_drawer); // initialize drawer list // Also set a custom shadow that overlays the main content when the drawer opens DrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // change frames int bit =0; if(bit==1){ // add fragments to drawer list Fragment newFragment; FragmentTransaction transaction = getFragmentManager().beginTransaction(); newFragment = new testfragment(); transaction.add(R.id.left_drawer, newFragment); transaction.addToBackStack(null); transaction.commit(); } else { // add fragments to drawer list Fragment newFragment; FragmentTransaction transaction = getFragmentManager().beginTransaction(); newFragment = new testfragment1(); transaction.add(R.id.left_drawer, newFragment); transaction.addToBackStack(null); transaction.commit(); } // set up the drawer's list view with items and click listener // DrawerList.setAdapter(new ArrayAdapter&lt;String&gt;(this, R.layout.drawer_itemlist, ListTitles)); // DrawerList.setOnItemClickListener(new DrawerItemClickListener()); // enable ActionBar app icon to behave as action to toggle nav drawer getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); // ActionBarDrawerToggle ties together the the proper interactions // between the sliding drawer and the action bar app icon DrawerToggle = new ActionBarDrawerToggle( this, /* host Activity */ DrawerLayout, /* DrawerLayout object */ R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description for accessibility */ R.string.drawer_close /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { getActionBar().setTitle(Title); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } public void onDrawerOpened(View drawerView) { getActionBar().setTitle(Title); // same title for open/close drawer //getActionBar().setTitle(DrawerTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } }; DrawerLayout.setDrawerListener(DrawerToggle); if (savedInstanceState == null) { // selectItem(0); } } /** * When using the ActionBarDrawerToggle, you must call it during * onPostCreate() and onConfigurationChanged()... */ @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. DrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Pass any configuration change to the drawer toggle DrawerToggle.onConfigurationChanged(newConfig); } // option menu - action bar @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return super.onCreateOptionsMenu(menu); } // Called whenever we call invalidateOptionsMenu() @Override public boolean onPrepareOptionsMenu(Menu menu) { // If the nav drawer is open, hide action items related to the content view boolean drawerOpen = DrawerLayout.isDrawerOpen(DrawerList); menu.findItem(R.id.action_websearch).setVisible(!drawerOpen); return super.onPrepareOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // The action bar home/up action should open or close the drawer. // ActionBarDrawerToggle will take care of this. if (DrawerToggle.onOptionsItemSelected(item)) { return true; } // Handle action buttons switch(item.getItemId()) { case R.id.action_websearch: // create intent to perform web search for this planet Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); // catch event that there's no activity to handle intent if (intent.resolveActivity(getPackageManager()) != null) { startActivity(intent); } else { Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show(); } return true; default: return super.onOptionsItemSelected(item); } } /* // Nav Drawer List click // The click listener for ListView in the navigation drawer @SuppressWarnings("unused") private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position, long id) { selectItem(position); } } private void selectItem(int position) { Fragment newFragment; FragmentTransaction transaction = getFragmentManager().beginTransaction(); switch (position) { case 0: newFragment = new f1(); transaction.replace(R.id.content_frame, newFragment); transaction.addToBackStack(null); transaction.commit(); break; case 1: newFragment = new f2(); transaction.replace(R.id.content_frame, newFragment); transaction.addToBackStack(null); transaction.commit(); break; case 2: newFragment = new f3(); transaction.replace(R.id.content_frame, newFragment); transaction.addToBackStack(null); transaction.commit(); break; case 3: newFragment = new f4(); transaction.replace(R.id.content_frame, newFragment); transaction.addToBackStack(null); transaction.commit(); break; } //DrawerList.setItemChecked(position, true); setTitle(ListTitles[position]); DrawerLayout.closeDrawer(DrawerList); } @Override public void setTitle(CharSequence title) { Title = title; getActionBar().setTitle(Title); } */ } </code></pre> <p>Source code for fragment1 :</p> <pre><code>public class testfragment extends Fragment { ListView DrawerList; private String[] ListTitles; private List&lt;String&gt; mDataSourceList = new ArrayList&lt;String&gt;(); private List&lt;FragmentTransaction&gt; mBackStackList = new ArrayList&lt;FragmentTransaction&gt;(); public static Fragment newInstance(Context context) { testfragment f = new testfragment(); return f; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) { ViewGroup root = (ViewGroup) inflater.inflate(R.layout.activity_testfragment, null); return root; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); //add data to ListView for(int i=0, count=20; i&lt;count; i++){ mDataSourceList.add("record" + i); } ListView listView = (ListView) getActivity().findViewById(R.id.listView1); listView.setAdapter(new ArrayAdapter(getActivity(), android.R.layout.simple_list_item_1, mDataSourceList)); } public android.app.Fragment commit() { // TODO Auto-generated method stub return null; } } </code></pre> <p>fragment 2 has also the similar code but with a different items in the list. Both the fragments are loading perfectly in the drawer depending upon the bit value. Now when someone clicks on the drawer list item, I want to load the corresponding fragment in the main layout. </p> <p>My question is Where &amp; How I'm supposed to add onclicklistener for the listview so that appropriate fragment is generated in the main content after the drawer closes ? In the corresponding fragment1/2 or the main activity.</p> <p>I also have another approach for doing the same thing using different lists in the man activity only. What I can do is -- Declare two different listviews along with their onclicklistener switch cases in the main activity. Then I can load those listviews using if-else condition in the drawer.</p> <p>What could be the better approach for a flexible, well structured and well designed app.</p> <p>Here is the another part of my question : <a href="https://stackoverflow.com/questions/20175476/load-navigation-drawer-slider-with-dynamic-fragments">Load navigation drawer slider with Dynamic Fragments</a></p>
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    1. USCommunity
    1. USAman Mundra
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    1. COwhy do you have some commented codes `DrawerList.setOnItemClickListener(new DrawerItemClickListener());`??
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      1. POLoad custom fragments in Navigation-Drawer's drawer and open corresponding fragments in the main layout
      1. USRaghunandan
    2. COThat code populates the drawer with a listview, as suggested in the google's navigation drawer documentation. I don't want to do that so I commented it out. Instead I want to add my own fragment.
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      1. POLoad custom fragments in Navigation-Drawer's drawer and open corresponding fragments in the main layout
      1. USAman Mundra
    3. COyour fragment has nothing to do with the list. You can have a custom listview. you can have your own custom fragments
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      1. POLoad custom fragments in Navigation-Drawer's drawer and open corresponding fragments in the main layout
      1. USRaghunandan
 

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