1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.applications.appinfo; 18 19 import android.content.Context; 20 import android.content.pm.ApplicationInfo; 21 import android.content.pm.PackageInfo; 22 import android.content.pm.PackageManager; 23 import android.hardware.usb.IUsbManager; 24 import android.os.ServiceManager; 25 import android.support.v7.preference.Preference; 26 import android.support.v7.preference.PreferenceScreen; 27 28 import com.android.settings.SettingsPreferenceFragment; 29 import com.android.settings.applications.AppLaunchSettings; 30 import com.android.settingslib.applications.AppUtils; 31 import com.android.settingslib.applications.ApplicationsState; 32 33 public class AppOpenByDefaultPreferenceController extends AppInfoPreferenceControllerBase { 34 35 private IUsbManager mUsbManager; 36 private PackageManager mPackageManager; 37 AppOpenByDefaultPreferenceController(Context context, String key)38 public AppOpenByDefaultPreferenceController(Context context, String key) { 39 super(context, key); 40 mUsbManager = IUsbManager.Stub.asInterface(ServiceManager.getService(Context.USB_SERVICE)); 41 mPackageManager = context.getPackageManager(); 42 } 43 44 @Override displayPreference(PreferenceScreen screen)45 public void displayPreference(PreferenceScreen screen) { 46 super.displayPreference(screen); 47 final ApplicationsState.AppEntry appEntry = mParent.getAppEntry(); 48 if (appEntry == null || appEntry.info == null) { 49 mPreference.setEnabled(false); 50 } else if ((appEntry.info.flags & ApplicationInfo.FLAG_INSTALLED) == 0 51 || !appEntry.info.enabled) { 52 mPreference.setEnabled(false); 53 } 54 } 55 56 @Override updateState(Preference preference)57 public void updateState(Preference preference) { 58 final PackageInfo packageInfo = mParent.getPackageInfo(); 59 if (packageInfo != null && !AppUtils.isInstant(packageInfo.applicationInfo)) { 60 preference.setVisible(true); 61 preference.setSummary(AppUtils.getLaunchByDefaultSummary(mParent.getAppEntry(), 62 mUsbManager, mPackageManager, mContext)); 63 } else { 64 preference.setVisible(false); 65 } 66 } 67 68 @Override getDetailFragmentClass()69 protected Class<? extends SettingsPreferenceFragment> getDetailFragmentClass() { 70 return AppLaunchSettings.class; 71 } 72 73 } 74