Java tutorial
/* * Obadiah - Simple and Easy-to-Use Bible Reader * Copyright (C) 2015 ZionSoft * 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 net.zionsoft.obadiah.ui.fragments; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.view.ViewPager; import android.support.v7.app.ActionBarActivity; import android.support.v7.view.ActionMode; import android.text.ClipboardManager; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.Toast; import net.zionsoft.obadiah.R; import net.zionsoft.obadiah.model.Verse; import net.zionsoft.obadiah.model.analytics.Analytics; import net.zionsoft.obadiah.ui.adapters.VersePagerAdapter; import java.util.List; import butterknife.InjectView; public class TextFragment extends BaseFragment implements VersePagerAdapter.Listener { public interface Listener { public void onChapterSelected(int chapterIndex); } @InjectView(R.id.verse_view_pager) ViewPager mVerseViewPager; private Listener mListener; private VersePagerAdapter mVersePagerAdapter; private ActionMode mActionMode; @SuppressWarnings("deprecation") private ClipboardManager mClipboardManager; public TextFragment() { super(); } @Override public void onAttach(Activity activity) { super.onAttach(activity); setRetainInstance(true); mListener = (Listener) activity; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_text, container, false); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); mVersePagerAdapter = new VersePagerAdapter(getActivity(), this); mVerseViewPager.setAdapter(mVersePagerAdapter); mVerseViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { public void onPageScrollStateChanged(int state) { // do nothing } public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { // do nothing } public void onPageSelected(int position) { if (mActionMode != null) mActionMode.finish(); if (mListener != null) mListener.onChapterSelected(position); } }); } @Override public void onStart() { super.onStart(); mVersePagerAdapter.notifyDataSetChanged(); } @Override public void onStop() { if (mActionMode != null) mActionMode.finish(); super.onStop(); } @Override public void onDetach() { mListener = null; super.onDetach(); } @Override public void onVersesSelectionChanged(boolean hasSelected) { if (hasSelected) { if (mActionMode != null) return; mActionMode = ((ActionBarActivity) getActivity()).startSupportActionMode(new ActionMode.Callback() { @Override public boolean onCreateActionMode(ActionMode actionMode, Menu menu) { actionMode.getMenuInflater().inflate(R.menu.menu_text_selection_context, menu); return true; } @Override public boolean onPrepareActionMode(ActionMode actionMode, Menu menu) { return false; } @Override public boolean onActionItemClicked(ActionMode actionMode, MenuItem menuItem) { switch (menuItem.getItemId()) { case R.id.action_copy: Analytics.trackUIEvent("copy"); final Activity activity = getActivity(); if (mClipboardManager == null) { // noinspection deprecation mClipboardManager = (ClipboardManager) activity .getSystemService(Context.CLIPBOARD_SERVICE); } mClipboardManager.setText( buildText(mVersePagerAdapter.getSelectedVerses(mVerseViewPager.getCurrentItem()))); Toast.makeText(activity, R.string.toast_verses_copied, Toast.LENGTH_SHORT).show(); actionMode.finish(); return true; case R.id.action_share: Analytics.trackUIEvent("share"); startActivity(Intent.createChooser( new Intent().setAction(Intent.ACTION_SEND).setType("text/plain").putExtra( Intent.EXTRA_TEXT, buildText(mVersePagerAdapter .getSelectedVerses(mVerseViewPager.getCurrentItem()))), getResources().getText(R.string.text_share_with))); actionMode.finish(); return true; default: return false; } } @Override public void onDestroyActionMode(ActionMode actionMode) { if (actionMode != mActionMode) return; mVersePagerAdapter.deselectVerses(); mActionMode = null; } }); } else { if (mActionMode != null) mActionMode.finish(); } } private static String buildText(List<Verse> verses) { if (verses == null || verses.size() == 0) return null; // format: <book name> <chapter index>:<verse index> <verse text> final StringBuilder text = new StringBuilder(); for (Verse verse : verses) { text.append(String.format("%S %d:%d %s\n", verse.bookName, verse.chapterIndex + 1, verse.verseIndex + 1, verse.verseText)); } return text.toString(); } public int getCurrentVerse() { return mVersePagerAdapter.getCurrentVerse(mVerseViewPager.getCurrentItem()); } public void setSelected(int currentBook, int currentChapter, int currentVerse) { mVersePagerAdapter.setSelected(currentBook, currentChapter, currentVerse); mVersePagerAdapter.notifyDataSetChanged(); mVerseViewPager.setCurrentItem(currentChapter, true); } public void setSelected(String translationShortName, int currentBook, int currentChapter, int currentVerse) { mVersePagerAdapter.setTranslationShortName(translationShortName); setSelected(currentBook, currentChapter, currentVerse); } }