Kann nicht hören Klicks auf Caret

Question

Jul 01, 2015, 08:40 AM

android-actionbar android-fragments android-toolbar navigation-drawer android

Kann nicht hören Klicks auf Caret

Ich habe eine einzelne Aktivität (MainActivity), mit der die Aktionsbaraktivität erweitert und NavigationDrawer implementiert wird. Ich habe das drawertoggle in der Aktivität selbst eingerichtet.

Ich erstelle neue Fragmente aus einem Fragment, das von einem anderen Fragment erstellt wurde, das wiederum von MainActivity erstellt wird. (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");
    }

Auch das Schubladenlayout

<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" />

Und 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" />

Ich habe dieses Tutorial tatsächlich an das Setup des Fragmentes der Navigationsschublade weitergeleitet:Android Hive.

Ich verwies auch auf ähnliche Fragen, die hier zum Stackoverflow beantwortet wurden:

1.Zwischen Android Navigation Drawer-Bild und Up Caret wechseln, wenn Fragmente verwendet werden

2.Mein Problem ähnelt diesem: Android Navigation Drawer Show Up Indicator für Fragmente auf niedrigerer Ebene. - Ich konnte hier keinen Kommentar abgeben, da ich keine 50 Wiederholungen habe. Ich habe implementiert, was in den Kommentaren genau gesagt wurde.

Aber immer noch auf das Aufwärtspfeil klicken, führt die Funktion onOptionItemSelected nicht aus, obwohl ich den Homebutton aktiviert habe.!

Ich füge jetzt meine benutzerdefinierten styles.xml hinzu. Ist dies möglicherweise ein Fehler?

<?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>

Auch die benutzerdefinierte 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" />