1 /* 2 * Copyright (C) 2010 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.contacts.common.editor; 18 19 import android.app.AlertDialog; 20 import android.app.Dialog; 21 import android.app.DialogFragment; 22 import android.app.Fragment; 23 import android.app.FragmentManager; 24 import android.content.DialogInterface; 25 import android.os.Bundle; 26 27 import com.android.contacts.common.model.account.AccountWithDataSet; 28 import com.android.contacts.common.util.AccountsListAdapter; 29 import com.android.contacts.common.util.AccountsListAdapter.AccountListFilter; 30 31 /** 32 * Shows a dialog asking the user which account to chose. 33 * 34 * The result is passed to {@code targetFragment} passed to {@link #show}. 35 */ 36 public final class SelectAccountDialogFragment extends DialogFragment { 37 public static final String TAG = "SelectAccountDialogFragment"; 38 39 private static final String KEY_TITLE_RES_ID = "title_res_id"; 40 private static final String KEY_LIST_FILTER = "list_filter"; 41 private static final String KEY_EXTRA_ARGS = "extra_args"; 42 SelectAccountDialogFragment()43 public SelectAccountDialogFragment() { // All fragments must have a public default constructor. 44 } 45 46 /** 47 * Show the dialog. 48 * 49 * @param fragmentManager {@link FragmentManager}. 50 * @param targetFragment {@link Fragment} that implements {@link Listener}. 51 * @param titleResourceId resource ID to use as the title. 52 * @param accountListFilter account filter. 53 * @param extraArgs Extra arguments, which will later be passed to 54 * {@link Listener#onAccountChosen}. {@code null} will be converted to 55 * {@link Bundle#EMPTY}. 56 */ show(FragmentManager fragmentManager, F targetFragment, int titleResourceId, AccountListFilter accountListFilter, Bundle extraArgs)57 public static <F extends Fragment & Listener> void show(FragmentManager fragmentManager, 58 F targetFragment, int titleResourceId, 59 AccountListFilter accountListFilter, Bundle extraArgs) { 60 final Bundle args = new Bundle(); 61 args.putInt(KEY_TITLE_RES_ID, titleResourceId); 62 args.putSerializable(KEY_LIST_FILTER, accountListFilter); 63 args.putBundle(KEY_EXTRA_ARGS, (extraArgs == null) ? Bundle.EMPTY : extraArgs); 64 65 final SelectAccountDialogFragment instance = new SelectAccountDialogFragment(); 66 instance.setArguments(args); 67 instance.setTargetFragment(targetFragment, 0); 68 instance.show(fragmentManager, null); 69 } 70 71 @Override onCreateDialog(Bundle savedInstanceState)72 public Dialog onCreateDialog(Bundle savedInstanceState) { 73 final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); 74 final Bundle args = getArguments(); 75 76 final AccountListFilter filter = (AccountListFilter) args.getSerializable(KEY_LIST_FILTER); 77 final AccountsListAdapter accountAdapter = new AccountsListAdapter(builder.getContext(), 78 filter); 79 80 final DialogInterface.OnClickListener clickListener = 81 new DialogInterface.OnClickListener() { 82 @Override 83 public void onClick(DialogInterface dialog, int which) { 84 dialog.dismiss(); 85 86 onAccountSelected(accountAdapter.getItem(which)); 87 } 88 }; 89 90 builder.setTitle(args.getInt(KEY_TITLE_RES_ID)); 91 builder.setSingleChoiceItems(accountAdapter, 0, clickListener); 92 final AlertDialog result = builder.create(); 93 return result; 94 } 95 96 @Override onCancel(DialogInterface dialog)97 public void onCancel(DialogInterface dialog) { 98 super.onCancel(dialog); 99 final Fragment targetFragment = getTargetFragment(); 100 if (targetFragment != null && targetFragment instanceof Listener) { 101 final Listener target = (Listener) targetFragment; 102 target.onAccountSelectorCancelled(); 103 } 104 } 105 106 /** 107 * Calls {@link Listener#onAccountChosen} of {@code targetFragment}. 108 */ onAccountSelected(AccountWithDataSet account)109 private void onAccountSelected(AccountWithDataSet account) { 110 final Fragment targetFragment = getTargetFragment(); 111 if (targetFragment != null && targetFragment instanceof Listener) { 112 final Listener target = (Listener) targetFragment; 113 target.onAccountChosen(account, getArguments().getBundle(KEY_EXTRA_ARGS)); 114 } 115 } 116 117 public interface Listener { onAccountChosen(AccountWithDataSet account, Bundle extraArgs)118 void onAccountChosen(AccountWithDataSet account, Bundle extraArgs); onAccountSelectorCancelled()119 void onAccountSelectorCancelled(); 120 } 121 } 122