23f8d59d02
Having consistent import order will reduce chance of merge conflict between internal and external master Test: rebuild Change-Id: I0b1a170967ddcce7f388603fd521f6ed1eeba30b
74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.support.actionbar;
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import static com.android.settings.support.actionbar.HelpResourceProvider.HELP_URI_RESOURCE_KEY;
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import android.annotation.NonNull;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.Menu;
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import android.view.MenuInflater;
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import androidx.fragment.app.Fragment;
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import com.android.settingslib.HelpUtils;
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import com.android.settingslib.core.lifecycle.LifecycleObserver;
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import com.android.settingslib.core.lifecycle.ObservableFragment;
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import com.android.settingslib.core.lifecycle.ObservablePreferenceFragment;
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import com.android.settingslib.core.lifecycle.events.OnCreateOptionsMenu;
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/**
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* A controller that adds help menu to any Settings page.
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*/
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public class HelpMenuController implements LifecycleObserver, OnCreateOptionsMenu {
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private final Fragment mHost;
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public static void init(@NonNull ObservablePreferenceFragment host) {
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host.getSettingsLifecycle().addObserver(new HelpMenuController(host));
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}
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public static void init(@NonNull ObservableFragment host) {
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host.getSettingsLifecycle().addObserver(new HelpMenuController(host));
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}
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private HelpMenuController(@NonNull Fragment host) {
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mHost = host;
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}
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@Override
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public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
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final Bundle arguments = mHost.getArguments();
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int helpResourceId = 0;
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if (arguments != null && arguments.containsKey(HELP_URI_RESOURCE_KEY)) {
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helpResourceId = arguments.getInt(HELP_URI_RESOURCE_KEY);
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} else if (mHost instanceof HelpResourceProvider) {
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helpResourceId = ((HelpResourceProvider) mHost).getHelpResource();
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}
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String helpUri = null;
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if (helpResourceId != 0) {
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helpUri = mHost.getContext().getString(helpResourceId);
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}
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final Activity activity = mHost.getActivity();
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if (helpUri != null && activity != null) {
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HelpUtils.prepareHelpMenuItem(activity, menu, helpUri, mHost.getClass().getName());
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}
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}
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}
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