SlidingActivity.java

/*
* Copyright 2013 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 com.saulmm.material.activities;

import android.app.FragmentTransaction;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.view.Gravity;
import android.view.MenuItem;
import android.view.View;

import com.saulmm.material.R;
import com.saulmm.material.fragments.SlidingTabFragment;

public class SlidingActivity extends ActionBarActivity {

    private DrawerLayout mDrawerLayout;
    private ActionBarDrawerToggle mDrawerToggle;

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

        if (savedInstanceState == null) {
            FragmentTransaction transaction = getFragmentManager().beginTransaction();
            SlidingTabFragment fragment = new SlidingTabFragment();
            transaction.replace(R.id.sample_content_fragment, fragment);
            transaction.commit();
        }

        configureToolbar();
        configureDrawer();
    }

    private void configureToolbar() {
        Toolbar mainToolbar = (Toolbar) findViewById(R.id.activity_transition_header);
        setSupportActionBar(mainToolbar);
        getSupportActionBar().setTitle("Sliding");

        mainToolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if (mDrawerLayout.isDrawerOpen(Gravity.START)) {
                    mDrawerLayout.closeDrawer(Gravity.START);

                } else {
                    mDrawerLayout.openDrawer(Gravity.START);
                }
            }
        });
    }

    private void configureDrawer() {
        // Configure drawer
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.string.drawer_open,
                R.string.drawer_closed) {

            public void onDrawerClosed(View view) {
                supportInvalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                supportInvalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
            }
        };

        mDrawerLayout.setDrawerListener(mDrawerToggle);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }
}