1 /* 2 * Copyright (C) 2016 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.packageinstaller.handheld; 18 19 import android.app.AlertDialog; 20 import android.app.Dialog; 21 import android.app.DialogFragment; 22 import android.content.DialogInterface; 23 import android.content.pm.ApplicationInfo; 24 import android.content.pm.PackageManager; 25 import android.content.pm.UserInfo; 26 import android.os.Bundle; 27 import android.os.UserManager; 28 29 import com.android.packageinstaller.R; 30 import com.android.packageinstaller.UninstallerActivity; 31 32 public class UninstallAlertDialogFragment extends DialogFragment implements 33 DialogInterface.OnClickListener { 34 35 @Override onCreateDialog(Bundle savedInstanceState)36 public Dialog onCreateDialog(Bundle savedInstanceState) { 37 final PackageManager pm = getActivity().getPackageManager(); 38 final UninstallerActivity.DialogInfo dialogInfo = 39 ((UninstallerActivity) getActivity()).getDialogInfo(); 40 final CharSequence appLabel = dialogInfo.appInfo.loadLabel(pm); 41 42 AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity()); 43 StringBuilder messageBuilder = new StringBuilder(); 44 45 // If the Activity label differs from the App label, then make sure the user 46 // knows the Activity belongs to the App being uninstalled. 47 if (dialogInfo.activityInfo != null) { 48 final CharSequence activityLabel = dialogInfo.activityInfo.loadLabel(pm); 49 if (!activityLabel.equals(appLabel)) { 50 messageBuilder.append( 51 getString(R.string.uninstall_activity_text, activityLabel)); 52 messageBuilder.append(" ").append(appLabel).append(".\n\n"); 53 } 54 } 55 56 final boolean isUpdate = 57 ((dialogInfo.appInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0); 58 UserManager userManager = UserManager.get(getActivity()); 59 if (isUpdate) { 60 if (isSingleUser(userManager)) { 61 messageBuilder.append(getString(R.string.uninstall_update_text)); 62 } else { 63 messageBuilder.append(getString(R.string.uninstall_update_text_multiuser)); 64 } 65 } else { 66 if (dialogInfo.allUsers && !isSingleUser(userManager)) { 67 messageBuilder.append(getString(R.string.uninstall_application_text_all_users)); 68 } else if (!dialogInfo.user.equals(android.os.Process.myUserHandle())) { 69 UserInfo userInfo = userManager.getUserInfo(dialogInfo.user.getIdentifier()); 70 messageBuilder.append( 71 getString(R.string.uninstall_application_text_user, userInfo.name)); 72 } else { 73 messageBuilder.append(getString(R.string.uninstall_application_text)); 74 } 75 } 76 77 dialogBuilder.setTitle(appLabel); 78 dialogBuilder.setIcon(dialogInfo.appInfo.loadIcon(pm)); 79 dialogBuilder.setPositiveButton(android.R.string.ok, this); 80 dialogBuilder.setNegativeButton(android.R.string.cancel, this); 81 dialogBuilder.setMessage(messageBuilder.toString()); 82 return dialogBuilder.create(); 83 } 84 85 @Override onClick(DialogInterface dialog, int which)86 public void onClick(DialogInterface dialog, int which) { 87 if (which == Dialog.BUTTON_POSITIVE) { 88 ((UninstallerActivity) getActivity()).startUninstallProgress(); 89 } else { 90 ((UninstallerActivity) getActivity()).dispatchAborted(); 91 } 92 } 93 94 @Override onDismiss(DialogInterface dialog)95 public void onDismiss(DialogInterface dialog) { 96 super.onDismiss(dialog); 97 if (isAdded()) { 98 getActivity().finish(); 99 } 100 } 101 102 /** 103 * Returns whether there is only one user on this device, not including 104 * the system-only user. 105 */ isSingleUser(UserManager userManager)106 private boolean isSingleUser(UserManager userManager) { 107 final int userCount = userManager.getUserCount(); 108 return userCount == 1 109 || (UserManager.isSplitSystemUser() && userCount == 2); 110 } 111 } 112