Java tutorial
/* * Copyright 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.aboveware.actionbar.honeycomb; import android.annotation.TargetApi; import android.app.ActionBar; import android.app.Activity; import android.content.Context; import android.support.v4.widget.SearchViewCompat; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.SearchView; import android.widget.SpinnerAdapter; import com.aboveware.abovegame.R; import com.aboveware.actionbar.common.ActionBarHelper; import com.aboveware.actionbar.common.IDocument; import com.aboveware.actionbar.common.IDocumentInterface; import com.aboveware.actionbar.support.ActionMode; /** * An extension of {@link ActionBarHelper} that provides Android 3.0-specific * functionality for Honeycomb tablets. It thus requires API level 11. */ @TargetApi(11) public class ActionBarHelperHoneycomb extends ActionBarHelper { private Menu mOptionsMenu; private View mRefreshIndeterminateProgressView = null; private android.view.ActionMode mActionMode; private IDocument iDocument; /** * If the "refreshing" has been started prior to the creation of the menu */ private boolean shouldBeRefreshing = false; public ActionBarHelperHoneycomb(Activity activity) { super(activity); iDocument = activity instanceof IDocument ? (IDocument) activity : ((IDocumentInterface) activity).getInterface(); } @Override public boolean onCreateOptionsMenu(Menu menu) { mOptionsMenu = menu; MenuItem searchItem = menu.findItem(R.id.menu_search); if (searchItem != null) { final SearchView searchView = (SearchView) searchItem.getActionView(); searchView.setIconifiedByDefault(false); searchView.setSubmitButtonEnabled(true); searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { return iDocument.searchSubmit(query); } @Override public boolean onQueryTextChange(String newText) { return iDocument.search(newText); } }); } boolean returnValue = super.onCreateOptionsMenu(menu); if (shouldBeRefreshing) { setRefreshActionItemState(true); } shouldBeRefreshing = false; return returnValue; } @Override public void setRefreshActionItemState(boolean refreshing) { // On Honeycomb, we can set the state of the refresh button by giving it a // custom action view. if (mOptionsMenu == null) { shouldBeRefreshing = refreshing; return; } final MenuItem refreshItem = mOptionsMenu.findItem(R.id.menu_refresh); if (refreshItem != null) { if (refreshing) { if (mRefreshIndeterminateProgressView == null) { LayoutInflater inflater = (LayoutInflater) getActionBarThemedContext() .getSystemService(Context.LAYOUT_INFLATER_SERVICE); mRefreshIndeterminateProgressView = inflater.inflate(R.layout.actionbar_indeterminate_progress, null); } refreshItem.setActionView(mRefreshIndeterminateProgressView); } else { refreshItem.setActionView(null); } } } @Override public void startSupportedActionMode(final ActionMode.Callback callback) { mActionMode = mActivity.startActionMode(new ActionModeCallbackWrapper(callback)); } @Override public int getDisplayOptions() { return mActivity.getActionBar().getDisplayOptions(); } @Override public void setDisplayOptions(int options) { ActionBar bar = mActivity.getActionBar(); bar.setDisplayOptions(options); } @Override public void setDisplayOptions(int options, int mask) { ActionBar bar = mActivity.getActionBar(); bar.setDisplayOptions(options, mask); } @Override public void setCustomView(View view) { ActionBar bar = mActivity.getActionBar(); bar.setCustomView(view); } @Override public int getNavigationMode() { return mActivity.getActionBar().getNavigationMode(); } @Override public void setNavigationMode(int mode) { mActivity.getActionBar().setNavigationMode(mode); } @Override public void setListNavigationCallbacks(SpinnerAdapter adapter, OnNavigationListener callback) { mActivity.getActionBar().setListNavigationCallbacks(adapter, new NavigationCallbackWrapper(callback)); } @Override public void setSelectedNavigationItem(int position) { mActivity.getActionBar().setSelectedNavigationItem(position); } @Override public int getSelectedNavigationIndex() { return mActivity.getActionBar().getSelectedNavigationIndex(); } @Override public int getNavigationItemCount() { return mActivity.getActionBar().getNavigationItemCount(); } class ActionModeCallbackWrapper implements android.view.ActionMode.Callback { private ActionMode.Callback mCallback; private ActionModeWrapper mActionModeWrapper; ActionModeCallbackWrapper(ActionMode.Callback callback) { mCallback = callback; mActionModeWrapper = new ActionModeWrapper(); } @Override public boolean onCreateActionMode(android.view.ActionMode mode, Menu menu) { mActionModeWrapper.setDelegate(mode); return mCallback.onCreateActionMode(mActionModeWrapper, menu); } @Override public boolean onPrepareActionMode(android.view.ActionMode mode, Menu menu) { mActionModeWrapper.setDelegate(mode); return mCallback.onPrepareActionMode(mActionModeWrapper, menu); } @Override public boolean onActionItemClicked(android.view.ActionMode mode, MenuItem item) { mActionModeWrapper.setDelegate(mode); return mCallback.onActionItemClicked(mActionModeWrapper, item); } @Override public void onDestroyActionMode(android.view.ActionMode mode) { mActionModeWrapper.setDelegate(mode); mActionMode = null; mCallback.onDestroyActionMode(mActionModeWrapper); } } class ActionModeWrapper extends ActionMode { private android.view.ActionMode mDelegate; public android.view.ActionMode getDelegate() { return mDelegate; } public void setDelegate(android.view.ActionMode delegate) { mDelegate = delegate; } @Override public void setTag(Object tag) { mDelegate.setTag(tag); } @Override public Object getTag() { return mDelegate.getTag(); } @Override public void setTitle(CharSequence title) { mDelegate.setTitle(title); } @Override public void setTitle(int resId) { mDelegate.setTitle(resId); } @Override public void setSubtitle(CharSequence subtitle) { mDelegate.setSubtitle(subtitle); } @Override public void setSubtitle(int resId) { mDelegate.setSubtitle(resId); } @Override public void setCustomView(View view) { mDelegate.setCustomView(view); } @Override public void invalidate() { mDelegate.invalidate(); } @Override public void finish() { mDelegate.finish(); } @Override public Menu getMenu() { return mDelegate.getMenu(); } @Override public CharSequence getTitle() { return mDelegate.getTitle(); } @Override public CharSequence getSubtitle() { return mDelegate.getSubtitle(); } @Override public View getCustomView() { return mDelegate.getCustomView(); } @Override public MenuInflater getMenuInflater() { return mDelegate.getMenuInflater(); } @Override public boolean isUiFocusable() { return true; } } private class NavigationCallbackWrapper implements ActionBar.OnNavigationListener { private OnNavigationListener mWrapped; private NavigationCallbackWrapper(OnNavigationListener wrapped) { mWrapped = wrapped; } @Override public boolean onNavigationItemSelected(int itemPosition, long itemId) { return mWrapped.onNavigationItemSelected(itemPosition, itemId); } } @Override public String getQuery() { View view = SearchViewCompat.newSearchView(mActivity); if (view != null) { return ((SearchView) view).getQuery().toString(); } return null; } @Override public void stopSupportedActionMode() { if (mActionMode != null) { mActionMode.finish(); } mActionMode = null; } @Override public void setTitle(String title) { mActivity.getActionBar().setTitle(title); } @Override public boolean inSupportedActionMode() { return mActionMode != null; } @Override public void setActionModeTitle(String title) { if (inSupportedActionMode()) { mActionMode.setTitle(title); } } @Override public void setIcon(int icon) { ActionBar bar = mActivity.getActionBar(); bar.setIcon(icon); } @Override public void setRefreshActionVisible(boolean show) { MenuItem menuItem = mOptionsMenu.findItem(R.id.menu_refresh); if (menuItem != null) { menuItem.setVisible(show); } } }