Java tutorial
/* * Twittnuker - Twitter client for Android * * Copyright (C) 2013-2014 vanita5 <mail@vanita5.de> * * This program incorporates a modified version of Twidere. * Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com> * * 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 de.vanita5.twittnuker.fragment.support; import android.app.ActionBar; import android.os.Bundle; import android.provider.SearchRecentSuggestions; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import de.vanita5.twittnuker.R; import de.vanita5.twittnuker.activity.support.LinkHandlerActivity; import de.vanita5.twittnuker.adapter.support.SupportTabsAdapter; import de.vanita5.twittnuker.fragment.iface.RefreshScrollTopInterface; import de.vanita5.twittnuker.fragment.iface.SupportFragmentCallback; import de.vanita5.twittnuker.menu.TwidereMenuInflater; import de.vanita5.twittnuker.model.Panes; import de.vanita5.twittnuker.provider.RecentSearchProvider; import de.vanita5.twittnuker.util.AsyncTwitterWrapper; import de.vanita5.twittnuker.util.ThemeUtils; import de.vanita5.twittnuker.view.ExtendedViewPager; import de.vanita5.twittnuker.view.LinePageIndicator; public class SearchFragment extends BaseSupportFragment implements Panes.Left, OnPageChangeListener, RefreshScrollTopInterface, SupportFragmentCallback { private ExtendedViewPager mViewPager; private SupportTabsAdapter mAdapter; private LinePageIndicator mPagerIndicator; private Fragment mCurrentVisibleFragment; @Override public Fragment getCurrentVisibleFragment() { return mCurrentVisibleFragment; } public void hideIndicator() { } @Override public void onActivityCreated(final Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setHasOptionsMenu(true); final Bundle args = getArguments(); final FragmentActivity activity = getActivity(); mAdapter = new SupportTabsAdapter(activity, getChildFragmentManager(), null, 1); mAdapter.addTab(SearchStatusesFragment.class, args, getString(R.string.statuses), R.drawable.ic_iconic_action_twitter, 0); mAdapter.addTab(SearchUsersFragment.class, args, getString(R.string.users), R.drawable.ic_iconic_action_user, 1); mViewPager.setAdapter(mAdapter); mViewPager.setOnPageChangeListener(this); mViewPager.setOffscreenPageLimit(2); mPagerIndicator.setSelectedColor(ThemeUtils.getThemeColor(activity)); mPagerIndicator.setViewPager(mViewPager); if (savedInstanceState == null && args != null && args.containsKey(EXTRA_QUERY)) { final String query = args.getString(EXTRA_QUERY); final SearchRecentSuggestions suggestions = new SearchRecentSuggestions(getActivity(), RecentSearchProvider.AUTHORITY, RecentSearchProvider.MODE); suggestions.saveRecentQuery(query, null); if (activity instanceof LinkHandlerActivity) { final ActionBar ab = activity.getActionBar(); if (ab != null) { ab.setSubtitle(query); } } } } @Override public void onCreateOptionsMenu(final Menu menu, final TwidereMenuInflater inflater) { inflater.inflate(R.menu.menu_search, menu); } @Override public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_search, container, false); } @Override public void onDetachFragment(final Fragment fragment) { } @Override public boolean onOptionsItemSelected(final MenuItem item) { switch (item.getItemId()) { case MENU_SAVE: { final AsyncTwitterWrapper twitter = getTwitterWrapper(); final Bundle args = getArguments(); if (twitter != null && args != null) { final long accountId = args.getLong(EXTRA_ACCOUNT_ID, -1); final String query = args.getString(EXTRA_QUERY); twitter.createSavedSearchAsync(accountId, query); } return true; } } return super.onOptionsItemSelected(item); } @Override public void onPageScrolled(final int position, final float positionOffset, final int positionOffsetPixels) { } @Override public void onPageScrollStateChanged(final int state) { } @Override public void onPageSelected(final int position) { } @Override public void onSetUserVisibleHint(final Fragment fragment, final boolean isVisibleToUser) { if (isVisibleToUser) { mCurrentVisibleFragment = fragment; } } @Override public void onViewCreated(final View view, final Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); mViewPager = (ExtendedViewPager) view.findViewById(R.id.search_pager); mPagerIndicator = (LinePageIndicator) view.findViewById(R.id.search_pager_indicator); } @Override public boolean scrollToStart() { if (!(mCurrentVisibleFragment instanceof RefreshScrollTopInterface)) return false; ((RefreshScrollTopInterface) mCurrentVisibleFragment).scrollToStart(); return true; } public void showIndicator() { } @Override public boolean triggerRefresh() { if (!(mCurrentVisibleFragment instanceof RefreshScrollTopInterface)) return false; ((RefreshScrollTopInterface) mCurrentVisibleFragment).triggerRefresh(); return true; } @Override public boolean triggerRefresh(final int position) { return false; } }