Create settings page for choosing default Network Scorer. (9347c95c) · Commits · e / os / android_packages_apps_Settings

res/values/strings.xml

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		@@ -3013,6 +3013,10 @@
		<string name="sms_change_default_dialog_text" translatable="true">Use <xliff:g id="new_app">%1$s</xliff:g> instead of <xliff:g id="current_app">%2$s</xliff:g> as your SMS app?</string>
		<string name="sms_change_default_no_previous_dialog_text" translatable="true">Use <xliff:g id="new_app">%s</xliff:g> as your SMS app?</string>

		<!-- Network Scorer Picker title [CHAR LIMIT=40]-->
		<string name="network_scorer_picker_title">Network Scorer</string>
		<string name="network_scorer_picker_none_preference">None</string>

		<!-- Wifi Assistant change wi-fi assistant title. [CHAR LIMIT=40] -->
		<string name="network_scorer_change_active_dialog_title">Change Wi\u2011Fi assistant?</string>
		<!-- Wifi Assistant request message. This message asks the user if it is okay for an app to become the Wifi Assistant instead of the current Wifi Assistant app. [CHAR LIMIT=100] -->

res/xml/network_scorer_picker_prefs.xml

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		<?xml version="1.0" encoding="utf-8"?>
		<!--
		Copyright (C) 2017 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.
		-->

		<PreferenceScreen
		xmlns:android="http://schemas.android.com/apk/res/android"
		android:title="@string/network_scorer_picker_title">
		</PreferenceScreen>
		No newline at end of file

res/xml/wifi_configure_settings.xml

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		@@ -58,6 +58,11 @@
		android:fragment="com.android.settings.WifiCallingSettings"
		settings:keywords="@string/keywords_wifi_calling"/>

		<Preference
		android:key="network_scorer_picker"
		android:title="@string/network_scorer_picker_title"
		android:fragment="com.android.settings.network.NetworkScorerPicker"/>

		<Preference
		android:key="wifi_direct"
		android:title="@string/wifi_menu_p2p">

src/com/android/settings/network/NetworkScoreManagerWrapper.java

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		/*
		* Copyright (C) 2017 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.network;

		import android.annotation.Nullable;
		import android.net.NetworkScoreManager;
		import android.net.NetworkScorerAppData;

		import java.util.List;

		/**
		* Wrapper around {@link NetworkScoreManager} to facilitate unit testing.
		*
		* TODO: delete this class once robolectric supports Android O
		*/
		public class NetworkScoreManagerWrapper {
		private final NetworkScoreManager mNetworkScoreManager;

		public NetworkScoreManagerWrapper(NetworkScoreManager networkScoreManager) {
		mNetworkScoreManager = networkScoreManager;
		}

		/**
		* Returns the list of available scorer apps. The list will be empty if there are
		* no valid scorers.
		*/
		public List<NetworkScorerAppData> getAllValidScorers() {
		return mNetworkScoreManager.getAllValidScorers();
		}

		/**
		* Obtain the package name of the current active network scorer.
		*
		* <p>At any time, only one scorer application will receive {@link #ACTION_SCORE_NETWORKS}
		* broadcasts and be allowed to call {@link #updateScores}. Applications may use this method to
		* determine the current scorer and offer the user the ability to select a different scorer via
		* the {@link #ACTION_CHANGE_ACTIVE} intent.
		* @return the full package name of the current active scorer, or null if there is no active
		* scorer.
		*/
		@Nullable
		public String getActiveScorerPackage() {
		return mNetworkScoreManager.getActiveScorerPackage();
		}


		/**
		* Set the active scorer to a new package and clear existing scores.
		*
		* <p>Should never be called directly without obtaining user consent. This can be done by using
		* the {@link #ACTION_CHANGE_ACTIVE} broadcast, or using a custom configuration activity.
		*
		* @return true if the operation succeeded, or false if the new package is not a valid scorer.
		* @throws SecurityException if the caller is not a system process or does not hold the
		* {@link android.Manifest.permission#REQUEST_NETWORK_SCORES} permission
		*/
		public boolean setActiveScorer(String packageName) throws SecurityException {
		return mNetworkScoreManager.setActiveScorer(packageName);
		}
		}
		No newline at end of file

src/com/android/settings/network/NetworkScorerPicker.java

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		/*
		* Copyright (C) 2017 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.network;

		import android.content.Context;
		import android.net.NetworkScoreManager;
		import android.net.NetworkScorerAppData;
		import android.os.Bundle;
		import android.support.annotation.VisibleForTesting;
		import android.support.v7.preference.Preference;
		import android.support.v7.preference.PreferenceScreen;
		import android.text.TextUtils;
		import android.view.LayoutInflater;
		import android.view.View;
		import android.view.ViewGroup;
		import com.android.settings.R;
		import com.android.settings.core.InstrumentedPreferenceFragment;
		import com.android.settings.core.instrumentation.Instrumentable;
		import com.android.settings.widget.RadioButtonPreference;

		import java.util.List;

		/**
		* Fragment for choosing default network scorer.
		*/
		public class NetworkScorerPicker extends InstrumentedPreferenceFragment implements
		RadioButtonPreference.OnClickListener {

		private NetworkScoreManagerWrapper mNetworkScoreManager;

		@Override
		public int getMetricsCategory() {
		//TODO(35854268): Add logging.
		return Instrumentable.METRICS_CATEGORY_UNKNOWN;
		}

		@Override
		public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
		super.onCreatePreferences(savedInstanceState, rootKey);
		addPreferencesFromResource(R.xml.network_scorer_picker_prefs);
		updateCandidates();
		}

		@Override
		public void onAttach(Context context) {
		super.onAttach(context);
		mNetworkScoreManager = createNetworkScorerManagerWrapper(context);
		}

		@Override
		public View onCreateView(LayoutInflater inflater, ViewGroup container,
		Bundle savedInstanceState) {
		final View view = super.onCreateView(inflater, container, savedInstanceState);
		// this is needed so the back button goes back to previous fragment
		setHasOptionsMenu(true);
		return view;
		}

		@VisibleForTesting
		public void updateCandidates() {
		final PreferenceScreen screen = getPreferenceScreen();
		screen.removeAll();

		final List<NetworkScorerAppData> scorers = mNetworkScoreManager.getAllValidScorers();
		if (scorers.isEmpty()) {
		final RadioButtonPreference nonePref = new RadioButtonPreference(getPrefContext());
		nonePref.setTitle(R.string.network_scorer_picker_none_preference);
		nonePref.setChecked(true);
		screen.addPreference(nonePref);
		return;
		}
		final String defaultAppKey = getActiveScorerPackage();
		final int numScorers = scorers.size();
		for (int i = 0; i < numScorers; i++) {
		final RadioButtonPreference pref = new RadioButtonPreference(getPrefContext());
		final NetworkScorerAppData appData = scorers.get(i);
		final String appKey = appData.getRecommendationServicePackageName();
		pref.setTitle(appData.getRecommendationServiceLabel());
		pref.setKey(appKey);
		pref.setChecked(TextUtils.equals(defaultAppKey, appKey));
		pref.setOnClickListener(this);
		screen.addPreference(pref);
		}
		}

		private String getActiveScorerPackage() {
		return mNetworkScoreManager.getActiveScorerPackage();
		}

		private boolean setActiveScorer(String key) {
		if (!TextUtils.equals(key, getActiveScorerPackage())) {
		return mNetworkScoreManager.setActiveScorer(key);
		}
		return false;
		}

		@Override
		public void onRadioButtonClicked(RadioButtonPreference selected) {
		final String selectedKey = selected.getKey();
		final boolean success = setActiveScorer(selectedKey);
		if (success) {
		updateCheckedState(selectedKey);
		}
		}

		private void updateCheckedState(String selectedKey) {
		final PreferenceScreen screen = getPreferenceScreen();
		final int count = screen.getPreferenceCount();
		for (int i = 0; i < count; i++) {
		final Preference pref = screen.getPreference(i);
		if (pref instanceof RadioButtonPreference) {
		final RadioButtonPreference radioPref = (RadioButtonPreference) pref;
		radioPref.setChecked(TextUtils.equals(pref.getKey(), selectedKey));
		}
		}
		}

		@VisibleForTesting
		NetworkScoreManagerWrapper createNetworkScorerManagerWrapper(Context context) {
		return new NetworkScoreManagerWrapper(context.getSystemService(NetworkScoreManager.class));
		}
		}