Java tutorial
/* * Copyright (C) 2011 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. */ package com.crossconnect.activity; import java.util.ArrayList; import java.util.List; import musicplayer.MusicActivity; import net.londatiga.android.QuickActionVertical; import net.londatiga.qahorizontal.ActionItem; import net.londatiga.qahorizontal.QuickActionHorizontal; import utility.SharedPreferencesHelper; import utility.Utils; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences.Editor; import android.graphics.Typeface; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.PopupWindow.OnDismissListener; import android.widget.Button; import android.widget.TabHost; import android.widget.TabWidget; import android.widget.TextView; import com.crossconnect.activity.main.AudioBibleFragment; import com.crossconnect.activity.main.BibleTextFragment; import com.crossconnect.activity.main.NotesEditorFragment; import com.crossconnect.activity.main.ResourceFragment; import com.crossconnect.model.BibleText; import com.crossconnect.service.NotesService; import com.crossconnect.service.ResourceService; import com.crossconnect.actions.ChapterSelectionActivity; import com.crossconnect.actions.PreferencesFromXml; import com.crossconnect.actions.R; import com.crossconnect.actions.ResourceRepositoryActivity; /** * Demonstrates combining a TabHost with a ViewPager to implement a tab UI that switches between tabs and also allows * the user to perform horizontal flicks to move between the tabs. */ public class MainActivity extends FragmentActivity { private static final String TAG = "MainActivity"; TabHost mTabHost; ViewPager mViewPager; TabsAdapter mTabsAdapter; Button headerTitleText; private final static int HONEYCOMB = 11; private final static String DEFAULT_TAB = "DEFAULT_TAB"; private final static String AUDIO_TAG = "Audio"; private final static String RESOURCE_TAG = "Resource"; private final static String BIBLE_TAG = "Bible"; private final static String NOTES_TAG = "Notes"; //The return codes for startactivity for result public static final int CHAPTER_SELECT_CODE = 1; public static final int WINDOW_SELECT_CODE = 2; public static final int TRANSLATION_SELECT_CODE = 3; public static final int NOTES_SELECT_CODE = 4; public static final int MAIN_SELECT_CODE = 5; public static final int SETTINGS_CODE = 6; static List<ImageButton> resource_top_icons; static List<ImageButton> bible_text_top_icons; static List<ImageButton> audio_top_icons; static List<ImageButton> notes_top_icons; private BibleText bibleText; public int windowId; //The popup menu shown on icon press private QuickActionHorizontal mQuickAction; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mTabHost = (TabHost) findViewById(android.R.id.tabhost); mTabHost.setup(); mTabHost.getTabWidget().setDividerDrawable(R.drawable.tab_divider); mViewPager = (ViewPager) findViewById(R.id.pager); mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager); //Add top menu icons into the seperate list resource_top_icons = new ArrayList<ImageButton>(); resource_top_icons.add((ImageButton) findViewById(R.id.menu_button_churches)); resource_top_icons.add((ImageButton) findViewById(R.id.menu_button_browse_resources)); bible_text_top_icons = new ArrayList<ImageButton>(); bible_text_top_icons.add((ImageButton) findViewById(R.id.menu_button_tabs)); bible_text_top_icons.add((ImageButton) findViewById(R.id.menu_button_windows)); audio_top_icons = new ArrayList<ImageButton>(); audio_top_icons.add((ImageButton) findViewById(R.id.menu_button_audio)); // audio_top_icons.add((ImageButton) findViewById(R.id.menu_button_browse_audio)); notes_top_icons = new ArrayList<ImageButton>(); notes_top_icons.add((ImageButton) findViewById(R.id.menu_button_notes)); notes_top_icons.add((ImageButton) findViewById(R.id.menu_button_notes_lock)); hideAllIcons(); //Load last opened verse bibleText = Utils.loadBibleText(getSharedPreferences("APP SETTINGS", Context.MODE_PRIVATE)); //Setup listeners for top menu icons //Go to notes browsing view ((ImageButton) findViewById(R.id.menu_button_notes)).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, NotesActivity.class); intent.putExtra("Translation", bibleText.getTranslation().getInitials()); startActivityForResult(intent, NOTES_SELECT_CODE); } }); ((ImageButton) findViewById(R.id.menu_button_churches)).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, ResourceRepositoryActivity.class); startActivity(intent); } }); // ((ImageButton) findViewById(R.id.menu_button_browse_audio)).setOnClickListener(new OnClickListener(){ // @Override // public void onClick(View v) { // Intent intent = new Intent(MainActivity.this, ResourceRepositoryActivity.class); // startActivity(intent); // } // }); ((ImageButton) findViewById(R.id.menu_button_audio)).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, MusicActivity.class); intent.putExtra("Book", bibleText.getBook()); intent.putExtra("Chapter", bibleText.getChapter()); intent.putExtra("Translation", bibleText.getTranslation().getInitials()); startActivity(intent); } }); ((ImageButton) findViewById(R.id.menu_button_browse_resources)).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(MainActivity.this, MusicActivity.class); intent.putExtra("Book", bibleText.getBook()); intent.putExtra("Chapter", bibleText.getChapter()); intent.putExtra("Translation", bibleText.getTranslation().getInitials()); startActivity(intent); } }); headerTitleText = (Button) findViewById(R.id.header_title); headerTitleText.setTypeface(Typeface.createFromAsset(getAssets(), "fonts/" + "Ubuntu-R.ttf"), Typeface.NORMAL); headerTitleText.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Editor editor = getSharedPreferences("APP SETTINGS", Context.MODE_PRIVATE).edit(); editor.putString(SharedPreferencesHelper.CURRENT_TAB, mTabHost.getCurrentTabTag()); editor.commit(); //TODO: can we pass the actual BibleText? Intent intent = new Intent(MainActivity.this, ChapterSelectionActivity.class); intent.putExtra("Book", bibleText.getBook()); intent.putExtra("Chapter", bibleText.getChapter()); intent.putExtra("Translation", bibleText.getTranslation().getInitials()); startActivityForResult(intent, CHAPTER_SELECT_CODE); } }); final ActionItem settingsAction = new ActionItem(); settingsAction.setTitle("Settings"); settingsAction.setIcon(getResources().getDrawable(R.drawable.ic_sysbar_quicksettings)); final ActionItem accAction = new ActionItem(); accAction.setTitle("Share"); accAction.setIcon(getResources().getDrawable(R.drawable.kontak)); final ActionItem upAction = new ActionItem(); upAction.setTitle("Star"); upAction.setIcon(getResources().getDrawable(R.drawable.kontak)); findViewById(R.id.title_bar_icon).setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { mQuickAction = new QuickActionHorizontal(findViewById(R.id.title_bar_icon)); final String text; settingsAction.setOnClickListener(new OnClickListener() { //Copy text action item @Override public void onClick(View v) { startActivityForResult(new Intent(MainActivity.this, PreferencesFromXml.class), SETTINGS_CODE); mQuickAction.dismiss(); } }); accAction.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { mQuickAction.dismiss(); } }); upAction.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { mQuickAction.dismiss(); } }); mQuickAction.addActionItem(settingsAction); mQuickAction.addActionItem(accAction); mQuickAction.addActionItem(upAction); mQuickAction.setAnimStyle(QuickActionVertical.ANIM_AUTO); mQuickAction.setOnDismissListener(new OnDismissListener() { @Override public void onDismiss() { } }); mQuickAction.show(); } }); // if (Build.VERSION.SDK_INT >= HONEYCOMB) { // // If has holo theme use holo themed buttons // mTabsAdapter.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"), NoteManagerBibleNotesFragment.class, null); // mTabsAdapter.addTab(mTabHost.newTabSpec("simple").setIndicator("Simple"), BookmanagerBibleFragment.class, null); // mTabsAdapter.addTab(mTabHost.newTabSpec("contacts").setIndicator("Contacts"), // LoaderCursorSupport.CursorLoaderListFragment.class, null); // mTabsAdapter.addTab(mTabHost.newTabSpec("custom").setIndicator("Custom"), LoaderCustomSupport.AppListFragment.class, null); // mTabsAdapter.addTab(mTabHost.newTabSpec("throttle").setIndicator("Throttle"), // LoaderThrottleSupport.ThrottledLoaderListFragment.class, null); // } else { // Use custom tab style setupTab(new TextView(this), AUDIO_TAG, R.drawable.ico_audio, AudioBibleFragment.class); setupTab(new TextView(this), BIBLE_TAG, R.drawable.ico_bible, BibleTextFragment.class); setupTab(new TextView(this), NOTES_TAG, R.drawable.ico_notes, NotesEditorFragment.class); setupTab(new TextView(this), RESOURCE_TAG, R.drawable.ic_action_microphone, ResourceFragment.class); // setupTab(new TextView(this), "Tab 3", LoaderCustomSupport.AppListFragment.class); // setupTab(new TextView(this), "Tab 4", LoaderThrottleSupport.ThrottledLoaderListFragment.class); // } //Set starting tab if (savedInstanceState != null) { mTabHost.setCurrentTabByTag(savedInstanceState.getString(DEFAULT_TAB)); } else { mTabHost.setCurrentTabByTag(BIBLE_TAG); } } /** * Called when tabs change to make sure it is the latest bibletext when tabs change */ public void refreshFragments() { if (RESOURCE_TAG.equals(mTabHost.getCurrentTabTag())) { ResourceFragment resourceFragment = (ResourceFragment) getSupportFragmentManager() .findFragmentByTag("android:switcher:" + R.id.pager + ":3"); if (resourceFragment != null) resourceFragment.updateResources(bibleText); } else if (BIBLE_TAG.equals(mTabHost.getCurrentTabTag())) { BibleTextFragment bibleTextFragment = (BibleTextFragment) getSupportFragmentManager() .findFragmentByTag("android:switcher:" + R.id.pager + ":1"); if (bibleTextFragment != null) bibleTextFragment.updateBibleTextView(bibleText); } else if (AUDIO_TAG.equals(mTabHost.getCurrentTabTag())) { AudioBibleFragment audioBibleFragment = (AudioBibleFragment) getSupportFragmentManager() .findFragmentByTag("android:switcher:" + R.id.pager + ":0"); if (audioBibleFragment != null) audioBibleFragment.updateList(bibleText); } else { NotesEditorFragment notesFragment = (NotesEditorFragment) getSupportFragmentManager() .findFragmentByTag("android:switcher:" + R.id.pager + ":2"); if (notesFragment != null) notesFragment.updateNotes(bibleText); } } public void updateHeaderText(String text) { headerTitleText.setText(text); } /** * Actually update the fragments this is called from activityResults as well as verse selection on bibletextfragment * @param bibleText */ public void updateBibleText(BibleText bibleText) { this.bibleText = bibleText; //Update the header text updateHeaderText(bibleText.getDisplayReferenceHeader()); // Get verse number if on bibletext fragment BibleTextFragment bibleTextFragment = (BibleTextFragment) getSupportFragmentManager() .findFragmentByTag("android:switcher:" + R.id.pager + ":1"); int verseNumber = 1; try { verseNumber = bibleTextFragment.getVerseNumber(); } catch (Exception e) { } //Save the current passage so it can be reloaded Utils.saveCurrentPassage(bibleText, getSharedPreferences("APP SETTINGS", Context.MODE_PRIVATE), verseNumber); //Refresh fragments with new value refreshFragments(); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { Log.d(TAG, "onActivityResult() ResultCode" + resultCode + " RequestCode:" + requestCode); //Result code from child fragments activity is bugged so need to strip off last digits int windowsReqCode = requestCode & 0xffff; if (resultCode == Activity.RESULT_OK && (requestCode == CHAPTER_SELECT_CODE || windowsReqCode == WINDOW_SELECT_CODE || requestCode == NOTES_SELECT_CODE)) { updateBibleText((BibleText) data.getParcelableExtra("BibleText")); mTabHost.setCurrentTabByTag(getSharedPreferences("APP SETTINGS", Context.MODE_PRIVATE) .getString(SharedPreferencesHelper.CURRENT_TAB, BIBLE_TAG)); if (windowsReqCode == WINDOW_SELECT_CODE) { windowId = data.getExtras().getInt("WindowId"); Log.i("Main", "Window ID Received" + windowId); } } else if (resultCode == Activity.RESULT_OK && requestCode == TRANSLATION_SELECT_CODE) { bibleText.setTranslation((String) data.getExtras().get("Translation")); updateBibleText((BibleText) data.getParcelableExtra("BibleText")); // new SwordVerseTask().execute(bibleTextView.getBibleText()); } else if (requestCode == SETTINGS_CODE) { updateBibleText(bibleText); } else if (requestCode == NOTES_SELECT_CODE && resultCode == Activity.RESULT_CANCELED) { //refresh if back is hit because note may have been deleted updateBibleText(bibleText); } } private void hideAllIcons() { ((ImageButton) findViewById(R.id.menu_button_churches)).setVisibility(View.GONE); ((ImageButton) findViewById(R.id.menu_button_browse_resources)).setVisibility(View.GONE); ((ImageButton) findViewById(R.id.menu_button_tabs)).setVisibility(View.GONE); ((ImageButton) findViewById(R.id.menu_button_windows)).setVisibility(View.GONE); ((ImageButton) findViewById(R.id.menu_button_audio)).setVisibility(View.GONE); // ((ImageButton) findViewById(R.id.menu_button_browse_audio)).setVisibility(View.GONE); ((ImageButton) findViewById(R.id.menu_button_notes)).setVisibility(View.GONE); ((ImageButton) findViewById(R.id.menu_button_notes_lock)).setVisibility(View.GONE); } private void setupTab(final View view, final String tag, int iconDrawable, Class fragment) { View tabview = createTabView(mTabHost.getContext(), tag, iconDrawable); mTabsAdapter.addTab(mTabHost.newTabSpec(tag).setIndicator(tabview), fragment, null); } private static View createTabView(final Context context, final String text, int iconDrawable) { View view = LayoutInflater.from(context).inflate(R.layout.tabs_bg, null); TextView tv = (TextView) view.findViewById(R.id.tabsText); ImageView iv = (ImageView) view.findViewById(R.id.tabsIcon); iv.setImageResource(iconDrawable); tv.setText(text); return view; } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putString(DEFAULT_TAB, mTabHost.getCurrentTabTag()); } private NotesService notesService; private ResourceService resourceService; /** * Notes service is on the parent activity to prevent multiple helpers being opened by fragments and thus prevents locking * issues and synch writes * @return a notes service */ public NotesService getNotesService() { if (notesService == null) { notesService = new NotesService(MainActivity.this); } return notesService; } /** * Resource service is on the parent activity to prevent multiple helpers being opened by fragments and thus prevents locking * issues and synch writes * @return a resource service */ public ResourceService getResourceService() { if (resourceService == null) { resourceService = new ResourceService(MainActivity.this); } return resourceService; } /** * Remember to close the DB when this activity is destroyed */ @Override public void onDestroy() { super.onDestroy(); if (resourceService != null) { resourceService.close(); } if (notesService != null) { notesService.close(); } Log.d(TAG, "onDestroy losing DB"); } /** * This is a helper class that implements the management of tabs and all details of connecting a ViewPager with * associated TabHost. It relies on a trick. Normally a tab host has a simple API for supplying a View or Intent * that each tab will show. This is not sufficient for switching between pages. So instead we make the content part * of the tab host 0dp high (it is not shown) and the TabsAdapter supplies its own dummy view to show as the tab * content. It listens to changes in tabs, and takes care of switch to the correct paged in the ViewPager whenever * the selected tab changes. */ public class TabsAdapter extends FragmentPagerAdapter implements TabHost.OnTabChangeListener, ViewPager.OnPageChangeListener { private final Context mContext; private final TabHost mTabHost; private final ViewPager mViewPager; private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>(); final class TabInfo { private final String tag; private final Class<?> clss; private final Bundle args; TabInfo(String _tag, Class<?> _class, Bundle _args) { tag = _tag; clss = _class; args = _args; } } class DummyTabFactory implements TabHost.TabContentFactory { private final Context mContext; public DummyTabFactory(Context context) { mContext = context; } @Override public View createTabContent(String tag) { View v = new View(mContext); v.setMinimumWidth(0); v.setMinimumHeight(0); return v; } } public TabsAdapter(FragmentActivity activity, TabHost tabHost, ViewPager pager) { super(activity.getSupportFragmentManager()); mContext = activity; mTabHost = tabHost; mViewPager = pager; mTabHost.setOnTabChangedListener(this); mViewPager.setAdapter(this); mViewPager.setOnPageChangeListener(this); } public void addTab(TabHost.TabSpec tabSpec, Class<?> clss, Bundle args) { tabSpec.setContent(new DummyTabFactory(mContext)); String tag = tabSpec.getTag(); TabInfo info = new TabInfo(tag, clss, args); mTabs.add(info); mTabHost.addTab(tabSpec); notifyDataSetChanged(); } @Override public int getCount() { return mTabs.size(); } @Override public Fragment getItem(int position) { TabInfo info = mTabs.get(position); return Fragment.instantiate(mContext, info.clss.getName(), info.args); } @Override public void onTabChanged(String tabId) { Log.d(TAG, "onTabChanged tabid:" + tabId + "Current mViewPager:" + mViewPager.getCurrentItem()); NotesEditorFragment fragment = (NotesEditorFragment) getSupportFragmentManager() .findFragmentByTag("android:switcher:" + R.id.pager + ":2"); if (fragment != null && fragment.isEnabled()) { fragment.save(); } refreshFragments(); int position = mTabHost.getCurrentTab(); mViewPager.setCurrentItem(position); hideAllIcons(); List<ImageButton> showIcons; if (RESOURCE_TAG.equals(mTabHost.getCurrentTabTag())) { showIcons = resource_top_icons; } else if (BIBLE_TAG.equals(mTabHost.getCurrentTabTag())) { showIcons = bible_text_top_icons; } else if (AUDIO_TAG.equals(mTabHost.getCurrentTabTag())) { showIcons = audio_top_icons; } else { showIcons = notes_top_icons; } for (ImageButton icon : showIcons) { icon.setVisibility(View.VISIBLE); } } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { // Unfortunately when TabHost changes the current tab, it kindly // also takes care of putting focus on it when not in touch mode. // The jerk. // This hack tries to prevent this from pulling focus out of our // ViewPager. TabWidget widget = mTabHost.getTabWidget(); int oldFocusability = widget.getDescendantFocusability(); widget.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS); mTabHost.setCurrentTab(position); widget.setDescendantFocusability(oldFocusability); } @Override public void onPageScrollStateChanged(int state) { } } }