| /* |
| * 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.deviceinfo; |
| |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.support.v7.preference.Preference; |
| import android.support.v7.preference.PreferenceScreen; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.settings.core.PreferenceControllerMixin; |
| import com.android.settingslib.DeviceInfoUtils; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| |
| public class SecurityPatchPreferenceController extends AbstractPreferenceController implements |
| PreferenceControllerMixin { |
| |
| private static final String KEY_SECURITY_PATCH = "security_patch"; |
| private static final String TAG = "SecurityPatchPref"; |
| |
| private final String mPatch; |
| private final PackageManager mPackageManager; |
| |
| public SecurityPatchPreferenceController(Context context) { |
| super(context); |
| mPackageManager = mContext.getPackageManager(); |
| mPatch = DeviceInfoUtils.getSecurityPatch(); |
| } |
| |
| @Override |
| public boolean isAvailable() { |
| return !TextUtils.isEmpty(mPatch); |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return KEY_SECURITY_PATCH; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| final Preference pref = screen.findPreference(KEY_SECURITY_PATCH); |
| if (pref != null) { |
| pref.setSummary(mPatch); |
| } |
| } |
| |
| @Override |
| public boolean handlePreferenceTreeClick(Preference preference) { |
| if (!TextUtils.equals(preference.getKey(), KEY_SECURITY_PATCH)) { |
| return false; |
| } |
| if (mPackageManager.queryIntentActivities(preference.getIntent(), 0).isEmpty()) { |
| // Don't send out the intent to stop crash |
| Log.w(TAG, "Stop click action on " + KEY_SECURITY_PATCH + ": " |
| + "queryIntentActivities() returns empty"); |
| return true; |
| } |
| return false; |
| } |
| } |