Merge "Merge InstrumentedFragment & InstrumentedPerferenceFragment"

/*

 * Copyright (C) 2015 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.android.settings;

import android.support.v14.preference.PreferenceFragment;

import com.android.internal.logging.MetricsLogger;

/**

 * Instrumented preference fragment that logs visibility state.

 */

public abstract class InstrumentedPreferenceFragment extends PreferenceFragment {

    /**

     * Declare the view of this category.

     *

     * Categories are defined in {@link com.android.internal.logging.MetricsProto.MetricsEvent}

     * or if there is no relevant existing category you may define one in

     * {@link com.android.settings.InstrumentedFragment}.

     */

    protected abstract int getMetricsCategory();

    @Override

    public void onResume() {

        super.onResume();

        MetricsLogger.visible(getActivity(), getMetricsCategory());

    }

    @Override

    public void onPause() {

        super.onPause();

        MetricsLogger.hidden(getActivity(), getMetricsCategory());

    }

}

/**

 * Base class for Settings fragments, with some helper functions and dialog management.

 */

public abstract class SettingsPreferenceFragment extends InstrumentedPreferenceFragment

public abstract class SettingsPreferenceFragment extends InstrumentedFragment

        implements DialogCreatable {

    /**

        return root;

    }

    @Override

    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {

    }

    @Override

    public void addPreferencesFromResource(@XmlRes int preferencesResId) {

        super.addPreferencesFromResource(preferencesResId);