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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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 org.sufficientlysecure.keychain.ui.adapter;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v7.app.AppCompatActivity;
import android.util.SparseArray;
import android.view.ViewGroup;
import java.util.ArrayList;
public class PagerTabStripAdapter extends FragmentPagerAdapter {
protected final Activity mActivity;
protected final ArrayList<TabInfo> mTabs = new ArrayList<>();
SparseArray<Fragment> registeredFragments = new SparseArray<Fragment>();
static final class TabInfo {
public final Class<?> clss;
public final Bundle args;
public final String title;
TabInfo(Class<?> clss, Bundle args, String title) {
this.clss = clss;
this.args = args;
this.title = title;
}
}
public PagerTabStripAdapter(AppCompatActivity activity) {
super(activity.getSupportFragmentManager());
mActivity = activity;
}
public void addTab(Class<?> clss, Bundle args, String title) {
TabInfo info = new TabInfo(clss, args, title);
mTabs.add(info);
notifyDataSetChanged();
}
public void removeTab(int index) {
mTabs.remove(index);
notifyDataSetChanged();
}
@Override
public int getCount() {
return mTabs.size();
}
@Override
public Fragment getItem(int position) {
TabInfo info = mTabs.get(position);
return Fragment.instantiate(mActivity, info.clss.getName(), info.args);
}
@Override
public CharSequence getPageTitle(int position) {
return mTabs.get(position).title;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
Fragment fragment = (Fragment) super.instantiateItem(container, position);
registeredFragments.put(position, fragment);
return fragment;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
registeredFragments.remove(position);
super.destroyItem(container, position, object);
}
public Fragment getRegisteredFragment(int position) {
return registeredFragments.get(position);
}
}
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