com.piusvelte.imgpagur.MainActivity.java Source code

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Here is the source code for com.piusvelte.imgpagur.MainActivity.java

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/*
 * ImgPagur
 * Copyright (C) 2013 Bryan Emmanuel
 * 
 * This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *  
 *  Bryan Emmanuel piusvelte@gmail.com
 */
package com.piusvelte.imgpagur;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.app.ActionBar.TabListener;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;

public class MainActivity extends SherlockFragmentActivity implements ImgList.ImgListListener, TabListener {

    ViewPager viewPager;
    ImgPagurPagerAdapter adapter;
    List<ImgFeed> imgFeeds = new ArrayList<ImgFeed>();

    public class ImgFeed {

        String title;
        String link;

        public ImgFeed(String title, String link) {
            this.title = title;
            this.link = link;
        }

    }

    ActionBar actionBar;

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

        SharedPreferences sharedPrefs = getSharedPreferences(getString(R.string.app_name), Context.MODE_PRIVATE);

        for (Map.Entry<String, String> entry : ((Map<String, String>) sharedPrefs.getAll()).entrySet()) {
            imgFeeds.add(new ImgFeed(entry.getKey(), entry.getValue()));
        }

        viewPager = (ViewPager) findViewById(R.id.pager);

        adapter = new ImgPagurPagerAdapter(getSupportFragmentManager());

        actionBar = getSupportActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        viewPager.setAdapter(adapter);
        viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {

            @Override
            public void onPageSelected(int position) {
                actionBar.setSelectedNavigationItem(position);
            }

        });

        for (int i = 0, c = adapter.getCount(); i < c; i++) {
            actionBar.addTab(actionBar.newTab().setText(adapter.getPageTitle(i)).setTabListener(this));
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        SharedPreferences.Editor editor = getSharedPreferences(getString(R.string.app_name), Context.MODE_PRIVATE)
                .edit();
        editor.clear();
        for (ImgFeed imgFeed : imgFeeds) {
            editor.putString(imgFeed.title, imgFeed.link);
        }
        editor.commit();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getSupportMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int itemId = item.getItemId();
        if (itemId == R.id.menu_remove) {
            int currentItem = viewPager.getCurrentItem();
            if (currentItem < (adapter.getCount() - 1)) {
                imgFeeds.remove(currentItem);
                adapter.notifyDataSetChanged();
                actionBar.removeTabAt(currentItem);
            }
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    public class ImgPagurPagerAdapter extends FragmentPagerAdapter {

        public ImgPagurPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int arg0) {
            Fragment fragment = new ImgList();
            if (arg0 < imgFeeds.size()) {
                Bundle extras = new Bundle();
                extras.putString(ImgList.EXTRA_LINK, imgFeeds.get(arg0).link);
                fragment.setArguments(extras);
            }
            return fragment;
        }

        @Override
        public int getCount() {
            // add 1 to include a new tab for adding a new feed
            return imgFeeds.size() + 1;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            Locale l = Locale.getDefault();
            if (position < imgFeeds.size()) {
                return imgFeeds.get(position).title.replace("_", " ").toUpperCase(l);
            } else {
                return getString(R.string.tab_new).toUpperCase(l);
            }
        }

    }

    @Override
    public void addFeed(String title, String link) {
        int updateTabAt = adapter.getCount() - 1;
        imgFeeds.add(new ImgFeed(title.replace(" ", "_"), link));
        adapter.notifyDataSetChanged();
        actionBar.getTabAt(updateTabAt).setText(adapter.getPageTitle(updateTabAt));
        actionBar.addTab(actionBar.newTab().setText(adapter.getPageTitle(++updateTabAt)).setTabListener(this));
    }

    @Override
    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        viewPager.setCurrentItem(tab.getPosition());
    }

    @Override
    public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onTabReselected(Tab tab, FragmentTransaction ft) {
        // TODO Auto-generated method stub

    }

}