android.support.v4.view.MenuCompat Maven / Gradle / Ivy
/*
* 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 android.support.v4.view;
import android.view.MenuItem;
/**
* Helper for accessing features in {@link android.view.Menu}
* introduced after API level 4 in a backwards compatible fashion.
*/
public class MenuCompat {
/**
* Interface for the full API.
*/
interface MenuVersionImpl {
public boolean setShowAsAction(MenuItem item, int actionEnum);
}
/**
* Interface implementation that doesn't use anything about v4 APIs.
*/
static class BaseMenuVersionImpl implements MenuVersionImpl {
@Override
public boolean setShowAsAction(MenuItem item, int actionEnum) {
return false;
}
}
/**
* Interface implementation for devices with at least v11 APIs.
*/
static class HoneycombMenuVersionImpl implements MenuVersionImpl {
@Override
public boolean setShowAsAction(MenuItem item, int actionEnum) {
MenuItemCompatHoneycomb.setShowAsAction(item, actionEnum);
return true;
}
}
/**
* Select the correct implementation to use for the current platform.
*/
static final MenuVersionImpl IMPL;
static {
if (android.os.Build.VERSION.SDK_INT >= 11) {
IMPL = new HoneycombMenuVersionImpl();
} else {
IMPL = new BaseMenuVersionImpl();
}
}
// -------------------------------------------------------------------
/**
* Call {@link MenuItem#setShowAsAction(int) MenuItem.setShowAsAction()}.
* If running on a pre-{@link android.os.Build.VERSION_CODES#HONEYCOMB} device,
* does nothing and returns false. Otherwise returns true.
*
* @deprecated Use {@link MenuItemCompat#setShowAsAction(MenuItem, int)
* MenuItemCompat.setShowAsAction(MenuItem, int)}
*/
public static boolean setShowAsAction(MenuItem item, int actionEnum) {
return IMPL.setShowAsAction(item, actionEnum);
}
}