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dynamically assign menu items to bottom nav tabs

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This loads menu/main_activity_screens.xml and stores the item IDs as the
positions for the bottom nav tabs.
This commit is contained in:
Hans-Christoph Steiner 2018-05-30 14:27:03 +02:00
parent c87f6a64f9
commit 74a2b25dfc
1 changed files with 43 additions and 20 deletions
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63
app/src/main/java/org/fdroid/fdroid/views/main/MainViewAdapter.java
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@ -1,42 +1,65 @@
/*
* Copyright (C) 2016-2017 Peter Serwylo
* Copyright (C) 2017 Mikael von Pfaler
* Copyright (C) 2018 Senecto Limited
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.fdroid.fdroid.views.main;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.util.SparseIntArray;
import android.view.Menu;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.PopupMenu;
import org.fdroid.fdroid.R;
/**
* Represents the five main views that are accessible from the main view. These are:
* + Whats new
* + Categories
* + Nearby
* + Updates
* + Settings
*
* It is responsible for understanding the relationship between each main view that is reachable
* from the bottom navigation, and its position.
*
* It doesn't need to do very much other than redirect requests from the {@link MainActivity}s
* {@link RecyclerView} to the relevant "bind*()" method
* of the {@link MainViewController}.
* Represents the main views that are accessible from the main screen via each
* tab. They are set and loaded dynamically from {@code menu/main_activity_screens.xml}
* This class is responsible for understanding the relationship between each
* tab view that is reachable from the bottom navigation, and its position.
* <p>
* It doesn't need to do very much other than redirect requests from the {@link MainActivity}s
* {@link RecyclerView} to the relevant "bind*()" method
* of the {@link MainViewController}.
* <p>
* {@link PopupMenu} is used as a hack to get a disposable {@link Menu} instance
* for parsing and reading the menu XML.
*/
class MainViewAdapter extends RecyclerView.Adapter<MainViewController> {
private final SparseIntArray positionToId = new SparseIntArray();
private final SparseIntArray positionToId;
private final AppCompatActivity activity;
MainViewAdapter(AppCompatActivity activity) {
this.activity = activity;
setHasStableIds(true);
positionToId.put(0, R.id.whats_new);
positionToId.put(1, R.id.categories);
positionToId.put(2, R.id.nearby);
positionToId.put(3, R.id.updates);
positionToId.put(4, R.id.settings);
PopupMenu p = new PopupMenu(activity, null);
Menu menu = p.getMenu();
activity.getMenuInflater().inflate(R.menu.main_activity_screens, menu);
positionToId = new SparseIntArray(menu.size());
for (int i = 0; i < menu.size(); i++) {
positionToId.append(i, menu.getItem(i).getItemId());
}
}
@Override