96 lines
2.9 KiB
Java
96 lines
2.9 KiB
Java
/*
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* Copyright (C) 2017 Schürmann & Breitmoser GbR
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui.adapter;
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import android.app.Activity;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentPagerAdapter;
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import android.support.v7.app.AppCompatActivity;
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import android.util.SparseArray;
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import android.view.ViewGroup;
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import java.util.ArrayList;
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public class PagerTabStripAdapter extends FragmentPagerAdapter {
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protected final Activity mActivity;
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protected final ArrayList<TabInfo> mTabs = new ArrayList<>();
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SparseArray<Fragment> registeredFragments = new SparseArray<Fragment>();
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static final class TabInfo {
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public final Class<?> clss;
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public final Bundle args;
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public final String title;
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TabInfo(Class<?> clss, Bundle args, String title) {
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this.clss = clss;
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this.args = args;
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this.title = title;
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}
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}
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public PagerTabStripAdapter(AppCompatActivity activity) {
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super(activity.getSupportFragmentManager());
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mActivity = activity;
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}
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public void addTab(Class<?> clss, Bundle args, String title) {
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TabInfo info = new TabInfo(clss, args, title);
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mTabs.add(info);
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notifyDataSetChanged();
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}
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public void removeTab(int index) {
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mTabs.remove(index);
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notifyDataSetChanged();
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}
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@Override
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public int getCount() {
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return mTabs.size();
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}
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@Override
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public Fragment getItem(int position) {
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TabInfo info = mTabs.get(position);
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return Fragment.instantiate(mActivity, info.clss.getName(), info.args);
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}
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@Override
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public CharSequence getPageTitle(int position) {
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return mTabs.get(position).title;
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}
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@Override
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public Object instantiateItem(ViewGroup container, int position) {
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Fragment fragment = (Fragment) super.instantiateItem(container, position);
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registeredFragments.put(position, fragment);
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return fragment;
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}
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@Override
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public void destroyItem(ViewGroup container, int position, Object object) {
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registeredFragments.remove(position);
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super.destroyItem(container, position, object);
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}
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public Fragment getRegisteredFragment(int position) {
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return registeredFragments.get(position);
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}
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}
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