0e19d2420b
Each default preference needs to have its corresponding PreferenceAvailabilityProvider to provide us the availability of it. If no corresponding provider is found, it is considered to be not available. So it encourages other developers who will add new default app preference later to consider the availability of it. Bug:27143673 Change-Id: I073b7122dddc579504f397c5de2bdd4df3826269
84 lines
2.6 KiB
Java
84 lines
2.6 KiB
Java
/*
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* Copyright (C) 2015 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.applications;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.content.pm.ResolveInfo;
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import android.net.Uri;
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import android.os.UserHandle;
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import android.util.AttributeSet;
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import com.android.settings.AppListPreference;
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import com.android.settings.PreferenceAvailabilityProvider;
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import java.util.ArrayList;
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import java.util.List;
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public class DefaultBrowserPreference extends AppListPreference {
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final private PackageManager mPm;
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public DefaultBrowserPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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mPm = context.getPackageManager();
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refreshBrowserApps();
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}
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public void refreshBrowserApps() {
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List<String> browsers = resolveBrowserApps();
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setPackageNames(browsers.toArray(new String[browsers.size()]), null);
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}
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private List<String> resolveBrowserApps() {
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List<String> result = new ArrayList<>();
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// Create an Intent that will match ALL Browser Apps
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Intent intent = new Intent();
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intent.setAction(Intent.ACTION_VIEW);
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intent.addCategory(Intent.CATEGORY_BROWSABLE);
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intent.setData(Uri.parse("http:"));
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// Resolve that intent and check that the handleAllWebDataURI boolean is set
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List<ResolveInfo> list = mPm.queryIntentActivitiesAsUser(intent, PackageManager.MATCH_ALL,
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UserHandle.myUserId());
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final int count = list.size();
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for (int i=0; i<count; i++) {
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ResolveInfo info = list.get(i);
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if (info.activityInfo == null || result.contains(info.activityInfo.packageName)
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|| !info.handleAllWebDataURI) {
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continue;
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}
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result.add(info.activityInfo.packageName);
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}
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return result;
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}
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public static class AvailabilityProvider implements PreferenceAvailabilityProvider {
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@Override
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public boolean isAvailable(Context context) {
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return true;
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}
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}
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}
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