com.poloure.simplerss.Constants.java Source code

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Here is the source code for com.poloure.simplerss.Constants.java

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/*
 * 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/>.
 *
 */

package com.poloure.simplerss;

import android.annotation.TargetApi;
import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.content.res.Resources;
import android.os.Build;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.WindowManager;
import android.webkit.WebViewFragment;

import uk.co.senab.actionbarpulltorefresh.library.PullToRefreshLayout;

public class Constants {
    public static ListFragmentFavourites s_fragmentFavourites;
    static FeedsActivity s_activity;
    static Resources s_resources;
    static DisplayMetrics s_displayMetrics;
    static FragmentManager s_fragmentManager;
    static ActionBar s_actionBar;
    static WindowManager s_windowManager;
    static int s_eightDp;
    /* Fragments .*/
    static FragmentFeeds s_fragmentFeeds;
    static ListFragmentManage s_fragmentManage;
    static FragmentSettings s_fragmentSettings;
    static WebViewFragment s_fragmentWeb;
    static FragmentNavigationDrawer s_fragmentDrawer;

    static ViewPager s_viewPager;
    static PullToRefreshLayout s_pullToRefreshLayout;
    static DrawerLayout s_drawerLayout;
    static ActionBarDrawerToggle s_drawerToggle;

    static void saveInitialConstants(FeedsActivity activity) {
        s_activity = activity;
        s_resources = activity.getResources();
        s_displayMetrics = s_resources.getDisplayMetrics();
        s_fragmentManager = activity.getFragmentManager();
        s_actionBar = activity.getActionBar();
        s_windowManager = activity.getWindowManager();
        s_eightDp = Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 8.0F, s_displayMetrics));

        s_fragmentFeeds = (FragmentFeeds) findFragment(R.id.fragment_feeds);
        s_fragmentFavourites = (ListFragmentFavourites) findFragment(R.id.fragment_favourites);
        s_fragmentManage = (ListFragmentManage) findFragment(R.id.fragment_manage);
        s_fragmentSettings = (FragmentSettings) findFragment(R.id.fragment_settings);
        s_fragmentWeb = (WebViewFragment) findFragment(R.id.fragment_web);
        s_fragmentDrawer = (FragmentNavigationDrawer) findFragment(R.id.fragment_navigation_drawer);

        s_drawerLayout = (DrawerLayout) findView(R.id.drawer_layout);
    }

    private static Fragment findFragment(int id) {
        return s_fragmentManager.findFragmentById(id);
    }

    private static View findView(int id) {
        return s_activity.findViewById(id);
    }

    static void saveViews() {
        s_viewPager = (ViewPager) findView(R.id.viewpager);
        s_pullToRefreshLayout = (PullToRefreshLayout) s_viewPager.getParent();
    }

    static void hideFragments(Fragment... fragments) {
        FragmentTransaction transaction = s_fragmentManager.beginTransaction();
        for (Fragment fragment : fragments) {
            transaction.hide(fragment);
        }
        transaction.commit();
    }

    static void showFragments(Fragment... fragments) {
        FragmentTransaction transaction = s_fragmentManager.beginTransaction();
        for (Fragment fragment : fragments) {
            transaction.show(fragment);
        }
        transaction.commit();
    }

    @TargetApi(Build.VERSION_CODES.KITKAT)
    static void setTopOffset(Activity activity) {
        setTopOffset(activity, findView(android.R.id.content));
    }

    @TargetApi(Build.VERSION_CODES.KITKAT)
    static void setTopOffset(Activity activity, View view) {
        if (Build.VERSION_CODES.KITKAT <= Build.VERSION.SDK_INT) {
            if (!ViewConfiguration.get(activity).hasPermanentMenuKey()) {
                TypedValue value = new TypedValue();

                Resources.Theme theme = activity.getTheme();
                theme.resolveAttribute(android.R.attr.actionBarSize, value, true);
                int actionBar = s_resources.getDimensionPixelSize(value.resourceId);
                int resourceId = s_resources.getIdentifier("status_bar_height", "dimen", "android");
                int statusBar = s_resources.getDimensionPixelSize(resourceId);

                view.setPadding(0, actionBar + statusBar, 0, 0);
            }
        }
    }
}