Cannot listen for carriage clicks

Question

I have one action (MainActivity) that extends actionbaractivity and implements NavigationDrawer. I installed drawertoggle in the activity itself.

I create new fragments from a fragment created by another fragment, which, in turn, is created by MainActivity. (MainActivity → HomeFragment → AnotherFragment).

MainActivity.java

public class MainActivity extends ActionBarActivity implements FragmentDrawer.FragmentDrawerListener, TitleSetter, NavigationDrawerEnabler{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myToolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(myToolbar); getSupportActionBar().setHomeButtonEnabled(true); //getSupportActionBar().setDisplayHomeAsUpEnabled(true); drawerFragment = (FragmentDrawer) getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer); setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), myToolbar); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); drawerFragment.setDrawerListener(this); // display the first navigation drawer view on app launch displayView(0); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return super.OncreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. /* This function is never called even if the Up caret button is pressed!! */ if (mDrawerToggle.isDrawerIndicatorEnabled() && mDrawerToggle.onOptionsItemSelected(item)) return true; switch (item.getItemId()) { case android.R.id.home: /*This case doesn't occur*/ return true; case R.id.action_settings: return true; default: return super.onOptionsItemSelected(item); } } @Override public void onDrawerItemSelected(View view, int position) { mDrawerLayout.closeDrawer(containerView); displayView(position); } private void displayView(int position) { Fragment fragment = null; String title = getString(R.string.app_name); switch (position) { case 0: fragment = new HomeFragment(); title = getString(R.string.title_home); break; case 1: fragment = new SomeFragment(); title = getString(R.string.title_something); break; case 2: //fragment = new SomeotherFragment(); //title = getString(R.string.title_somethings); break; default: break; } if (fragment != null) { FragmentManager fragmentManager = getSupportFragmentManager(); FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); fragmentTransaction.replace(R.id.container_body, fragment); fragmentTransaction.commit(); getSupportActionBar().setTitle(title); } } @Override public void setTitle(String title) { getSupportActionBar().setTitle(title); } public void setUp(int fragmentId, DrawerLayout drawerLayout, final Toolbar toolbar) { containerView = findViewById(fragmentId); mDrawerLayout = drawerLayout; mDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close) { @Override public void onDrawerOpened(View drawerView) { super.onDrawerOpened(drawerView); getSupportActionBar().invalidateOptionsMenu(); } @Override public void onDrawerClosed(View drawerView) { super.onDrawerClosed(drawerView); getSupportActionBar().invalidateOptionsMenu(); } @Override public void onDrawerSlide(View drawerView, float slideOffset) { super.onDrawerSlide(drawerView, slideOffset); toolbar.setAlpha(1 - slideOffset / 2); } }; mDrawerLayout.setDrawerListener(mDrawerToggle); mDrawerLayout.post(new Runnable() { @Override public void run() { mDrawerToggle.syncState(); } }); } @Override public void onBackPressed() { super.onBackPressed(); enableNavigationDrawer(true); } @Override public void enableNavigationDrawer(boolean isEnabled) { if ( isEnabled ) { mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED); getSupportActionBar().setDisplayHomeAsUpEnabled(false); mDrawerToggle.setDrawerIndicatorEnabled(true); mDrawerToggle.syncState(); } else { mDrawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED); mDrawerToggle.setDrawerIndicatorEnabled(false); getSupportActionBar().setDisplayShowHomeEnabled(true); getSupportActionBar().setHomeButtonEnabled(true); getSupportActionBar().setDisplayHomeAsUpEnabled(true); mDrawerToggle.syncState(); } } } 

HomeFragment.java

 public class HomeFragment extends Fragment implements View.OnClickListener { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.home, container, false); // Inflate the layout for this fragment fab = (FloatingActionButton) rootView.findViewById(R.id.fab); fab.setOnClickListener(this); ((TitleSetter) getActivity()).setTitle("Home"); return rootView; } @Override public void onAttach(Activity activity) { super.onAttach(activity); } @Override public void onDetach() { super.onDetach(); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.fab: ((NavigationDrawerEnabler) getActivity()).enableNavigationDrawer(false); Fragment newFragment = new NewWord(); FragmentManager fragmentManager = getFragmentManager(); FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); fragmentTransaction.replace(R.id.container_body, newFragment); fragmentTransaction.addToBackStack(null); // Commit the transaction fragmentTransaction.commit(); break; } } } 

AnotherFragment.java

 public class NewWord extends Fragment { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setHasOptionsMenu(true); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Get item selected and deal with it /*Not even this*/ Log.d("KEY: ", String.valueOf(item.getItemId())); switch (item.getItemId()) { case android.R.id.home: /* Doesn't execute*/ Log.d("Fragment", "I'm here"); getActivity().onBackPressed(); return true; default: return super.onOptionsItemSelected(item); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.new_word, container, false); return rootView; } @Override public void onAttach(Activity activity) { super.onAttach(activity); ((TitleSetter) activity).setTitle("Text"); } 

Also drawer layout

 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:id="@+id/container_toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <include android:id="@+id/toolbar" layout="@layout/toolbar" /> </LinearLayout> <FrameLayout android:id="@+id/container_body" android:layout_width="fill_parent" android:layout_height="0dp" android:layout_weight="1" > </FrameLayout> </LinearLayout> <fragment android:id="@+id/fragment_navigation_drawer" android:name="com.calgen.wordbook.activity.FragmentDrawer" android:layout_width="@dimen/nav_drawer_width" android:layout_height="match_parent" android:layout_gravity="start" app:layout="@layout/fragment_nav_drawer" tools:layout="@layout/fragment_nav_drawer" /> 

And menu_main.xml

 <menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity"> <item android:id="@+id/action_search" android:title="@string/action_search" android:orderInCategory="100" android:icon="@drawable/ic_action_search" app:showAsAction="ifRoom" /> <item android:id="@+id/action_settings" android:title="@string/action_settings" android:orderInCategory="100" app:showAsAction="never" /> 

I actually mentioned this tutorial to set up a box fragment for navigation: Android Hive .

I also mentioned similar questions that were asked here on stackoverflow:

1. Switch between Android Navigation Drawer and Up caret images using fragments

2. My problem is similar to the following: Android navigator display indicator for fragments of a lower level . - I could not comment here, since I do not have 50 repetitions. I implemented what was said in the comments.

But still clicking on the top carriage does not start the onOptionItemSelected function, even if I have home input enabled.!

Now I am adding my custom styles.xml, maybe there is some error in this?

 <?xml version="1.0" encoding="utf-8"?> <resources> <style name="MyMaterialTheme" parent="MyMaterialTheme.Base"></style> <style name="MyMaterialTheme.Base" parent="Theme.AppCompat"> <item name="windowNoTitle">true</item> <item name="windowActionBar">false</item> <item name="android:activatedBackgroundIndicator">@drawable/nav_background</item> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="android:textColorPrimary">@color/textColorPrimary</item> <item name="colorAccent">@color/colorAccent</item> </style> </resources> 

Also custom toolbar.xml

 <?xml version="1.0" encoding="utf-8"?> <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android" xmlns:local="http://schemas.android.com/apk/res-auto" android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:minHeight="?attr/actionBarSize" android:background="?attr/colorPrimary" local:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" local:popupTheme="@style/ThemeOverlay.AppCompat.Light" /> 

Answer 1

DECIDED FINALLY

I understood the problem, this is due to the custom toolbar that I used. When configuring a custom toolbar, we also need to set the listener to up caret using the drawertoggler.setNaviagtionOnClickListener method

In the onCreate () method of the activity, we need to add the following code:

 drawertoggler.setToolbarNavigationClickListener(new View.OnClickListener() { @Override public void onClick(View v) { getSupportFragmentManager().popBackStackImmediate(); } }); 

Other cases, such as OnBackPressed, can be handled by setting OnStackChangeListener in action and making the necessary changes. It clearly explains: @riwnodennyk .