Java tutorial
/* * Copyright 2012 Google Inc. * * 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.kth.baasio.helpcenter.utils.actionmodecompat; import android.annotation.TargetApi; import android.os.Build; import android.support.v4.app.FragmentActivity; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.AbsListView; import android.widget.ListView; /** * An implementation of {@link ActionMode} that proxies to the native * {@link android.view.ActionMode} implementation (shows the contextual action * bar). */ @TargetApi(Build.VERSION_CODES.HONEYCOMB) class ActionModeHoneycomb extends ActionMode { android.view.ActionMode mNativeActionMode; ActionModeHoneycomb() { } static ActionModeHoneycomb startInternal(final FragmentActivity activity, final Callback callback) { final ActionModeHoneycomb actionMode = new ActionModeHoneycomb(); activity.startActionMode(new android.view.ActionMode.Callback() { @Override public boolean onCreateActionMode(android.view.ActionMode nativeActionMode, Menu menu) { actionMode.mNativeActionMode = nativeActionMode; return callback.onCreateActionMode(actionMode, menu); } @Override public boolean onPrepareActionMode(android.view.ActionMode nativeActionMode, Menu menu) { return callback.onPrepareActionMode(actionMode, menu); } @Override public boolean onActionItemClicked(android.view.ActionMode nativeActionMode, MenuItem menuItem) { return callback.onActionItemClicked(actionMode, menuItem); } @Override public void onDestroyActionMode(android.view.ActionMode nativeActionMode) { callback.onDestroyActionMode(actionMode); } }); return actionMode; } /** {@inheritDoc} */ @Override public void setTitle(CharSequence title) { mNativeActionMode.setTitle(title); } /** {@inheritDoc} */ @Override public void setTitle(int resId) { mNativeActionMode.setTitle(resId); } /** {@inheritDoc} */ @Override public void invalidate() { mNativeActionMode.invalidate(); } /** {@inheritDoc} */ @Override public void finish() { mNativeActionMode.finish(); } /** {@inheritDoc} */ @Override public CharSequence getTitle() { return mNativeActionMode.getTitle(); } /** {@inheritDoc} */ @Override public MenuInflater getMenuInflater() { return mNativeActionMode.getMenuInflater(); } public static void beginMultiChoiceMode(ListView listView, FragmentActivity activity, final MultiChoiceModeListener listener) { listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL); listView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() { ActionModeHoneycomb mWrappedActionMode; @Override public void onItemCheckedStateChanged(android.view.ActionMode actionMode, int position, long id, boolean checked) { listener.onItemCheckedStateChanged(mWrappedActionMode, position, id, checked); } @Override public boolean onCreateActionMode(android.view.ActionMode actionMode, Menu menu) { if (mWrappedActionMode == null) { mWrappedActionMode = new ActionModeHoneycomb(); mWrappedActionMode.mNativeActionMode = actionMode; } return listener.onCreateActionMode(mWrappedActionMode, menu); } @Override public boolean onPrepareActionMode(android.view.ActionMode actionMode, Menu menu) { if (mWrappedActionMode == null) { mWrappedActionMode = new ActionModeHoneycomb(); mWrappedActionMode.mNativeActionMode = actionMode; } return listener.onPrepareActionMode(mWrappedActionMode, menu); } @Override public boolean onActionItemClicked(android.view.ActionMode actionMode, MenuItem menuItem) { return listener.onActionItemClicked(mWrappedActionMode, menuItem); } @Override public void onDestroyActionMode(android.view.ActionMode actionMode) { listener.onDestroyActionMode(mWrappedActionMode); } }); } }