В настоящее время я работаю над приложением для Android 4.2.2, которое использует новый NavigationDrawer. Это работает как шарм за исключением добавления иконок.

Я нашел некоторый пример кода, в котором представление List становится относительной компоновкой, в которой 2 параллельных массива вкладываются и отображаются с помощью адаптера массива на основе модели меню, так что я думаю, что они синхронизированы.

Вот основная деятельность:

package com.sorin.medisynced.main;

import android.app.Activity;
import android.app.SearchManager;
import android.content.Intent;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import com.sorin.medisynced.R;
import com.sorin.medisynced.filepickerio.FilepickerSaver;
import com.sorin.medisynced.filepickerio.FilepickerViewer;
import com.sorin.medisynced.qr.IntentIntegrator;

public class MediSyncedMainActivity extends Activity {

    private ListView mDrawerList;
    private DrawerLayout mDrawerLayout;

    private String[] menuItemsData;
    private String[] menuItemsTools;
    private ActionBarDrawerToggle mDrawerToggle;
    private String[] menuItemsEmergency;
    private CharSequence mDrawerTitle;
    private CharSequence mTitle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_drawer);
        mTitle = mDrawerTitle = getTitle();
        // set click listener for list drawer
        // mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
        // enable ActionBar app icon to behave as action to toggle nav drawer
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.drawer);

        // set a custom shadow that overlays the main content when the drawer
        // opens
        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow,
                GravityCompat.START);

        _initMenu();

        // 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(getString(R.string.drawer_close));
                invalidateOptionsMenu(); // creates call to
                                            // onPrepareOptionsMenu()
            }

            @Override
            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(getString(R.string.drawer_open));
                invalidateOptionsMenu(); // creates call to
                                            // onPrepareOptionsMenu()
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

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

    private void _initMenu() {
        NsMenuAdapter mAdapter = new NsMenuAdapter(this);

        // Add First Header
        mAdapter.addHeader(R.string.menu_data);

        // Add first block

        menuItemsData = getResources().getStringArray(R.array.menu_data);
        String[] menuDataIcons = getResources().getStringArray(
                R.array.data_menu_icons);

        int dataIcons = 0;
        for (String item : menuItemsData) {

            int id_data_title = getResources().getIdentifier(item, "string",
                    this.getPackageName());
            int id_data_icon = getResources()
                    .getIdentifier(menuDataIcons[dataIcons], "drawable",
                            this.getPackageName());

            NsMenuItemModel mItem = new NsMenuItemModel(id_data_title,
                    id_data_icon);
            mAdapter.addItem(mItem);
            dataIcons++;
        }
        // Add second header

        mAdapter.addHeader(R.string.menu_tools);
        // Add second block
        menuItemsTools = getResources().getStringArray(R.array.menu_tools);
        String[] menuToolsIcons = getResources().getStringArray(
                R.array.tools_menu_icons);

        int toolsIcons = 0;
        for (String item : menuItemsTools) {

            int id_tools_title = getResources().getIdentifier(item, "string",
                    this.getPackageName());
            int id_tools_icon = getResources().getIdentifier(
                    menuToolsIcons[toolsIcons], "drawable",
                    this.getPackageName());
            // creating drawer menu model
            NsMenuItemModel mItem = new NsMenuItemModel(id_tools_title,
                    id_tools_icon);
            mAdapter.addItem(mItem);
            toolsIcons++;
        }
        // Add third header

        mAdapter.addHeader(R.string.menu_emergency);
        // Add third block
        menuItemsEmergency = getResources().getStringArray(
                R.array.menu_emergency);
        String[] menuEmerIcons = getResources().getStringArray(
                R.array.emergency_menu_icons);

        int emerIcons = 0;

        for (String item : menuItemsEmergency) {

            int id_emer_title = getResources().getIdentifier(item, "string",
                    this.getPackageName());
            int id_emer_icon = getResources()
                    .getIdentifier(menuEmerIcons[emerIcons], "drawable",
                            this.getPackageName());

            // creating drawer menu model
            NsMenuItemModel mItem = new NsMenuItemModel(id_emer_title,
                    id_emer_icon);
            mAdapter.addItem(mItem);
            emerIcons++;
        }

        mDrawerList = (ListView) findViewById(R.id.drawer);
        if (mDrawerList != null)
            mDrawerList.setAdapter(mAdapter);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

    }

    @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);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    @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_save).setVisible(!drawerOpen);
        return super.onPrepareOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        /*
         * The action bar home/up 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_qrscan:

            IntentIntegrator integrator = new IntentIntegrator(
                    MediSyncedMainActivity.this);
            integrator.initiateScan();

            Toast.makeText(this, "Scan Qr Code", Toast.LENGTH_SHORT).show();
            return true;
        case R.id.action_filepicker_save:

            startActivity(new Intent(this, FilepickerSaver.class));

            Toast.makeText(this, "Save data on cloud", Toast.LENGTH_SHORT)
                    .show();
            return true;
        case R.id.action_filepicker_view:

            startActivity(new Intent(this, FilepickerViewer.class));

            Toast.makeText(this, "View data from cloud", Toast.LENGTH_SHORT)
                    .show();
            return true;
        case R.id.action_websearch:
            // create intent to perform web search for this planet
            Intent intent = new Intent(Intent.ACTION_SEARCH);
            intent.putExtra(SearchManager.QUERY, getApplicationContext()
                    .getDatabasePath(DROPBOX_SERVICE));
            // catch event that there's no activity to handle intent
            if (intent.resolveActivity(getPackageManager()) != null) {
                startActivity(intent);
            } else {
                Toast.makeText(this, R.string.search_database,
                        Toast.LENGTH_LONG).show();
            }
            return true;
        default:
            // Handle your other action bar items...
            return super.onOptionsItemSelected(item);
        }
    }

    private class DrawerItemClickListener implements
            ListView.OnItemClickListener {

        @Override
        public void onItemClick(AdapterView parent, View view, int position,
                long id) {
            // Highlight the selected item, update the title, and close the
            // drawer
            // update selected item and title, then close the drawer
            mDrawerList.getCount();
            mDrawerList.setItemChecked(position, true);
            String text = "menu click... should be implemented";
            Toast.makeText(MediSyncedMainActivity.this, text, Toast.LENGTH_LONG)
                    .show();
            mDrawerLayout.closeDrawer(mDrawerList);

        }

    }

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

Вот модель меню:

package com.sorin.medisynced.main;


public class NsMenuItemModel {

    public int title;
    public int iconRes;
    public boolean isHeader;

    public NsMenuItemModel(int title, int iconRes,boolean header) {
        this.title = title;
        this.iconRes = iconRes;
        this.isHeader=header;
    }

    public NsMenuItemModel(int title, int iconRes) {
        this(title,iconRes,false);
    }

}

Вот реализация ArrayAdapter:

package com.sorin.medisynced.main;


import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.sorin.medisynced.R;

public class NsMenuAdapter extends ArrayAdapter {

    /*
     * public NsMenuAdapter(Context context, int resource, int
     * textViewResourceId, String[] objects) { super(context,
     * R.layout.ns_menu_row, textViewResourceId, objects); }
     */

    public NsMenuAdapter(Context context) {
        super(context, 0);
    }

    public void addHeader(int title) {
        add(new NsMenuItemModel(title, -1, true));
    }

    public void addItem(int title, int icon) {
        add(new NsMenuItemModel(title, icon, false));
    }

    public void addItem(NsMenuItemModel itemModel) {
        add(itemModel);
    }

    @Override
    public int getViewTypeCount() {
        return 2;
    }

    @Override
    public int getItemViewType(int position) {
        return getItem(position).isHeader ? 0 : 1;
    }

    @Override
    public boolean isEnabled(int position) {
        return !getItem(position).isHeader;
    }

    public static class ViewHolder {
        public final TextView textHolder;
        public final ImageView imageHolder;

        public ViewHolder(TextView text1, ImageView image1) {
            this.textHolder = text1;
            this.imageHolder = image1;
        }
    }

    public View getView(int position, View convertView, ViewGroup parent) {

        NsMenuItemModel item = getItem(position);
        ViewHolder holder = null;
        View view = convertView;

        if (view == null) {
            int layout = R.layout.ns_menu_row;
            if (item.isHeader)
                layout = R.layout.ns_menu_row_header;

            view = LayoutInflater.from(getContext()).inflate(layout, null);

            TextView text1 = (TextView) view.findViewById(R.id.menurow_title);
            ImageView image1 = (ImageView) view.findViewById(R.id.menurow_icon);
            view.setTag(new ViewHolder(text1, image1));
        }

        if (holder == null && view != null) {
            Object tag = view.getTag();
            if (tag instanceof ViewHolder) {
                holder = (ViewHolder) tag;
            }
        }


        if(item != null && holder != null)
        {
            if (holder.textHolder != null)
                holder.textHolder.setText(item.title);

            if (holder.imageHolder != null) {
                if (item.iconRes > 0) {
                    holder.imageHolder.setVisibility(View.VISIBLE);
                    holder.imageHolder.setImageResource(item.iconRes);
                } else {
                    holder.imageHolder.setVisibility(View.GONE);
                }
            }
        }

        return view;        
    }

}

Строковый массив xml:

    menu_data_patient_profile
    menu_data_hospital_staff
    menu_data_xray_results
    menu_data_lab_results
    menu_data_medical_supplies_index
    menu_data_hospital_forms_index
    menu_data_prescriptions_index
    menu_data_illness_index
    menu_data_drugs_index
    menu_data_hospital_interactive_map


    menu_tools_ecg
    menu_tools_pulse
    menu_tools_microscope_feed
    menu_tools_blood_pressure
    menu_tools_temperature
    menu_tools_radiation_levels
    menu_tools_movement_log


    menu_emergency_call_ambulance
    menu_emergency_call_helicopter
    menu_emergency_call_nurse
    menu_emergency_call_doctor



    ic_patient_profile
    ic_hospital_staff
    ic_xray_results
    ic_lab_results
    ic_medical_supplies_index
    ic_hospital_forms_index
    ic_prescription_index
    ic_illness_index
    ic_drugs_index
    ic_hospital_interactive_map


    ic_ecg
    ic_pulse
    ic_microscope_feed
    ic_blood_pressure
    ic_body_temperature
    ic_radiation_levels
    ic_movement_logger


    ic_call_ambulance
    ic_call_helicopter
    ic_call_nurse
    ic_call_doctor

и основной макет:

Как я могу упростить подход. Есть ли способ использовать один массив вместо такой сложной структуры.

B.t.w. Вы можете найти мой проект на GitHub под:https://github.com/greenspand/MediSynced

Это медицинское приложение, отсюда и название. Спасибовсе.