/* * Copyright (C) 2014 Dominik Schürmann * * 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 . */ 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 mTabs = new ArrayList<>(); SparseArray registeredFragments = new SparseArray(); 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); } } 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169