android.support.test.testapp.DrawerActivity.java Source code

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Here is the source code for android.support.test.testapp.DrawerActivity.java

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/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.support.test.testapp;

import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;

/**
 * Activity to demonstrate actions on a {@link DrawerLayout}.
 */
public class DrawerActivity extends ActionBarActivity {

    public static final String[] DRAWER_CONTENTS = new String[] { "Platypus", "Wombat", "Pickle", "Badger" };

    private ActionBarDrawerToggle drawerToggle;
    private CharSequence title;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.drawer_activity);

        ListAdapter listAdapter = new ArrayAdapter<String>(getApplicationContext(), R.layout.drawer_row,
                R.id.drawer_row_name, DRAWER_CONTENTS);
        final DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        ListView drawerList = (ListView) findViewById(R.id.drawer_list);
        drawerList.setAdapter(listAdapter);

        final TextView textView = (TextView) findViewById(R.id.drawer_text_view);

        drawerList.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                textView.setText("You picked: " + DRAWER_CONTENTS[(int) id]);
                drawerLayout.closeDrawers();
            }
        });

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);

        title = getTitle();

        drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.drawable.ic_drawer, R.string.nav_drawer_open,
                R.string.nav_drawer_close) {

            /** Called when a drawer has settled in a completely closed state. */
            public void onDrawerClosed(View view) {
                getSupportActionBar().setTitle(title);
            }

            /** Called when a drawer has settled in a completely open state. */
            public void onDrawerOpened(View drawerView) {
                getSupportActionBar().setTitle(title);
            }
        };
        drawerLayout.setDrawerListener(drawerToggle);
    }

    @Override
    public void setTitle(CharSequence title) {
        this.title = title;
        getSupportActionBar().setTitle(title);
    }

    @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;
        }
        return super.onOptionsItemSelected(item);
    }

    @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 toggls
        drawerToggle.onConfigurationChanged(newConfig);
    }
}