1 /* 2 * Copyright (C) 2020 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.network.telephony; 18 19 import android.app.Dialog; 20 import android.app.DialogFragment; 21 import android.app.FragmentManager; 22 import android.app.FragmentTransaction; 23 import android.app.ProgressDialog; 24 import android.content.DialogInterface; 25 import android.os.Bundle; 26 import android.text.TextUtils; 27 import android.view.KeyEvent; 28 29 import com.android.settings.R; 30 31 /** Fragment to show a progress dialog. */ 32 public class ProgressDialogFragment extends DialogFragment { 33 private static final String ARG_TITLE = "title"; 34 35 private static final String TAG = "ProgressDialogFragment"; 36 37 private OnDismissCallback mDismissCallback; 38 39 // Host fragment is optional to implement this interface. 40 public interface OnDismissCallback { 41 // Action performed when the progress dialog is dismissed. onProgressDialogDismiss()42 void onProgressDialogDismiss(); 43 } 44 45 /** 46 * Check whether there is already a showing progress dialog. If yes and the title of the showing 47 * one is the same with the new coming one, just return and do nothing. If the title of the 48 * showing one is different from the new one, remove the showing one and create a new dialog for 49 * the new one. If there is no progress dialog right now, just create a new one. 50 */ show(FragmentManager fm, String title, OnDismissCallback dismissCallback)51 public static void show(FragmentManager fm, String title, OnDismissCallback dismissCallback) { 52 ProgressDialogFragment fragment = (ProgressDialogFragment) fm.findFragmentByTag(TAG); 53 if (fragment != null 54 && TextUtils.equals(fragment.getArguments().getString(ARG_TITLE), title)) { 55 return; 56 } 57 58 FragmentTransaction ft = fm.beginTransaction(); 59 if (fragment != null) { 60 ft.remove(fragment); 61 } 62 63 fragment = new ProgressDialogFragment(); 64 fragment.setDismissCallback(dismissCallback); 65 66 Bundle arguments = new Bundle(); 67 arguments.putString(ARG_TITLE, title); 68 fragment.setArguments(arguments); 69 fragment.show(ft, TAG); 70 } 71 72 /** 73 * Called by the caller activity or fragment when the progress is finished. 74 * 75 * @param fm The fragment manager. 76 */ dismiss(FragmentManager fm)77 public static void dismiss(FragmentManager fm) { 78 DialogFragment fragment = (DialogFragment) fm.findFragmentByTag(TAG); 79 if (fragment != null) { 80 fragment.dismiss(); 81 } 82 } 83 84 @Override 85 @SuppressWarnings("deprecation") // ProgressDialog is deprecated but is intended UX for now onCreateDialog(Bundle savedInstanceState)86 public Dialog onCreateDialog(Bundle savedInstanceState) { 87 ProgressDialog dialog = new ProgressDialog(getActivity()); 88 dialog.getWindow().setBackgroundDrawableResource(R.drawable.sim_progress_dialog_rounded_bg); 89 dialog.setCancelable(false); 90 dialog.setCanceledOnTouchOutside(false); 91 dialog.setMessage(getArguments().getString(ARG_TITLE)); 92 dialog.setOnKeyListener( 93 (progressDialog, keyCode, event) -> KeyEvent.KEYCODE_BACK == keyCode); 94 95 return dialog; 96 } 97 98 @Override onDismiss(DialogInterface dialog)99 public void onDismiss(DialogInterface dialog) { 100 super.onDismiss(dialog); 101 if (mDismissCallback != null) { 102 mDismissCallback.onProgressDialogDismiss(); 103 } 104 } 105 setDismissCallback(OnDismissCallback dismissCallback)106 private void setDismissCallback(OnDismissCallback dismissCallback) { 107 mDismissCallback = dismissCallback; 108 } 109 } 110