android - example - setdisplayhomeasupenabled

Cómo combinar Navigation Drawer y Spinner

Question

Necesito tu consejo. En la aplicación de Google+ para Android, hay dos elementos que no sé cómo armar. Uno es " Cajón de navegación " y el segundo es " Spinner de navegación de barra de acción ". ¿Sabes cómo estos dos elementos juntos?

¡Muchas gracias por tu consejo! PD: lo sé, soy cojo :) (y me disculpo por mi inglés)

Answer 1

Agregue la rueda giratoria a la barra de navegación.

El procedimiento básico para habilitar la navegación desplegable es:

1. Cree un SpinnerAdapter que proporcione la lista de elementos seleccionables para el menú desplegable y el diseño que se utilizará al dibujar cada elemento de la lista.

2. Implemente ActionBar.OnNavigationListener para definir el comportamiento que se produce cuando el usuario selecciona un elemento de la lista.

3.Durante el método onCreate () de su actividad, habilite la lista desplegable de la barra de acciones llamando a setNavigationMode (NAVIGATION_MODE_LIST).

4. Configure la devolución de llamada para la lista desplegable con setListNavigationCallbacks ()

http://developer.android.com/guide/topics/ui/actionbar.html

Ver el tema Agregar navegación desplegable

Ejemplo:

    public class MainActivity extends Activity implements OnNavigationListener

Entonces

    getActionBar().setDisplayShowTitleEnabled(false);
    getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
    SpinnerAdapter mSpinnerAdapter = ArrayAdapter.createFromResource(this, R.array.planets_array,
          android.R.layout.simple_spinner_dropdown_item);

    getActionBar().setListNavigationCallbacks(mSpinnerAdapter , this);

Entonces

    @Override
public boolean onNavigationItemSelected(int arg0, long arg1) {
     Toast.makeText(getApplicationContext()," text",1000).show();
    return true;
}

Chasquido

Ejemplo:

public class MainActivity extends Activity implements ActionBar.OnNavigationListener {
    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    public ActionBarDrawerToggle mDrawerToggle;

    private CharSequence mDrawerTitle;
    private CharSequence mTitle;
    private String[] mPlanetTitles;
    ActionBar actionBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        actionBar = getActionBar();


        SpinnerAdapter mSpinnerAdapter = ArrayAdapter.createFromResource(this, R.array.planets_array,
                android.R.layout.simple_spinner_dropdown_item);
        actionBar.setDisplayShowTitleEnabled(false);
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
        getActionBar().setListNavigationCallbacks(mSpinnerAdapter,this);

        //mTitle = mDrawerTitle = getTitle();
        mPlanetTitles = getResources().getStringArray(R.array.planets_array);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.left_drawer);

       // mDrawerList.setBackgroundColor(Color.WHITE);
        // set a custom shadow that overlays the main content when the drawer opens
        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
        // set up the drawer''s list view with items and click listener

        mDrawerList.setAdapter(new ArrayAdapter<String>(this,
                R.layout.drawer_list_item, mPlanetTitles));

        mDrawerList.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
        mDrawerToggle = new ActionBarDrawerToggle(
                this,                  /* host Activity */
                mDrawerLayout,         /* 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(mTitle);
                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
            }

            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            selectItem(0);
        }
    }

    @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 = mDrawerLayout.isDrawerOpen(mDrawerList);
        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 (mDrawerToggle.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);
        }
    }

    /* The click listner for ListView in the navigation drawer */
    private class DrawerItemClickListener implements ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            selectItem(position);
        }
    }

    private void selectItem(int position) {


        ActionBar actionBar =getActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
        Fragment fragment = new PlanetFragment();
        Bundle args = new Bundle();
        args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
        fragment.setArguments(args);

        FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();

        // update selected item and title, then close the drawer

        mDrawerList.setItemChecked(position, true);
      //  setTitle(mPlanetTitles[position]);
        mDrawerLayout.closeDrawer(mDrawerList);


    }

    @Override
    public void setTitle(CharSequence title) {
        mTitle = title;
        //getActionBar().setTitle(mTitle);
    }

    /**
     * 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.
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Pass any configuration change to the drawer toggls
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    /**
     * Fragment that appears in the "content_frame", shows a planet
     */
    public static class PlanetFragment extends Fragment {
        public static final String ARG_PLANET_NUMBER = "planet_number";
        private static WeakReference<MainActivity> mTarget;




        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
            super.onActivityCreated(savedInstanceState);

             if(mTarget!=null)
             {
                 MainActivity target = mTarget.get();
                 ActionBar actionBar = getActivity().getActionBar();
             actionBar.setDisplayHomeAsUpEnabled(true);
             //actionBar.setTitle("Fragment");
            //target.mDrawerToggle.setDrawerIndicatorEnabled(false);
             }
             else
             {
                 Log.i("............","Null");
             }
        }

        @Override
        public void onAttach(Activity activity) {
            // TODO Auto-generated method stub
            super.onAttach(activity);
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            mTarget = new WeakReference<MainActivity>( (MainActivity) getActivity());
            View rootView = inflater.inflate(R.layout.fragment_planet, container, false);

            int i = getArguments().getInt(ARG_PLANET_NUMBER);
            String planet = getResources().getStringArray(R.array.planets_array)[i];

            int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
                            "drawable", getActivity().getPackageName());
            ((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId);
           // getActivity().setTitle(planet);
            return rootView;
        }
    }

    @Override
    public boolean onNavigationItemSelected(int itemPosition, long itemId) {
        // TODO Auto-generated method stub
        Toast.makeText(getApplicationContext(), "text", Toast.LENGTH_LONG).show();
        return true;
    }
}

activity_main.xml

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- As the main content view, the view below consumes the entire
         space available using match_parent in both dimensions. -->
    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- android:layout_gravity="start" tells DrawerLayout to treat
         this as a sliding drawer on the left side for left-to-right
         languages and on the right side for right-to-left languages.
         The drawer is given a fixed width in dp and extends the full height of
         the container. A solid background is used for contrast
         with the content view. -->
    <ListView
        android:id="@+id/left_drawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp"
        />


</android.support.v4.widget.DrawerLayout>

drawe_list_item.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:background="@drawable/selector"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceListItemSmall"
    android:gravity="center_vertical"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:textColor="#fff"

    android:minHeight="?android:attr/listPreferredItemHeightSmall"/>

fragment_planet.xml

<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/image"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
    android:gravity="center"
    android:padding="32dp" />

Answer 2

Mira este enlace. puede ser que te ayude esto ?

Aquí están los ejemplos de código de Navigation Drawer y la aplicación de ejemplo:

• aplicación de muestra

• ¿Cómo agregar spinner a subtítulos como en la aplicación Play Music para Android ?