1 /* 2 * Copyright (C) 2008 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.phone.settings.fdn; 18 19 import android.app.AlertDialog; 20 import android.content.Context; 21 import android.preference.EditTextPreference; 22 import android.text.InputType; 23 import android.util.AttributeSet; 24 import android.view.View; 25 26 /** 27 * Class similar to the com.android.settings.EditPinPreference 28 * class, with a couple of modifications, including a different layout 29 * for the dialog. 30 */ 31 public class EditPinPreference extends EditTextPreference { 32 33 private boolean shouldHideButtons; 34 35 /** 36 * Interface definition for a callback to be invoked when the PIN is entered. 37 */ 38 public interface OnPinEnteredListener { 39 /** 40 * Called when the dialog of {@link #EditPinPreference} is dismissed. 41 * 42 * @param preference the specified {@link #EditPinPreference} 43 * @param positiveResult Whether the positive button was clicked (true), or 44 * the negative button was clicked or the dialog was canceled (false). 45 */ onPinEntered(EditPinPreference preference, boolean positiveResult)46 void onPinEntered(EditPinPreference preference, boolean positiveResult); 47 } 48 49 private OnPinEnteredListener mPinListener; 50 setOnPinEnteredListener(OnPinEnteredListener listener)51 public void setOnPinEnteredListener(OnPinEnteredListener listener) { 52 mPinListener = listener; 53 } 54 EditPinPreference(Context context, AttributeSet attrs)55 public EditPinPreference(Context context, AttributeSet attrs) { 56 super(context, attrs); 57 } 58 EditPinPreference(Context context, AttributeSet attrs, int defStyle)59 public EditPinPreference(Context context, AttributeSet attrs, int defStyle) { 60 super(context, attrs, defStyle); 61 } 62 63 @Override onBindDialogView(View view)64 protected void onBindDialogView(View view) { 65 super.onBindDialogView(view); 66 67 getEditText().setInputType(InputType.TYPE_CLASS_NUMBER 68 | InputType.TYPE_NUMBER_VARIATION_PASSWORD); 69 // If the layout does not contain an edittext, hide the buttons. 70 shouldHideButtons = (view.findViewById(android.R.id.edit) == null); 71 } 72 73 @Override onPrepareDialogBuilder(AlertDialog.Builder builder)74 protected void onPrepareDialogBuilder(AlertDialog.Builder builder) { 75 super.onPrepareDialogBuilder(builder); 76 77 // hide the buttons if we need to. 78 if (shouldHideButtons) { 79 builder.setPositiveButton(null, this); 80 builder.setNegativeButton(null, this); 81 } 82 } 83 84 @Override onDialogClosed(boolean positiveResult)85 protected void onDialogClosed(boolean positiveResult) { 86 super.onDialogClosed(positiveResult); 87 if (mPinListener != null) { 88 mPinListener.onPinEntered(this, positiveResult); 89 } 90 } 91 92 /** 93 * Externally visible method to bring up the dialog to 94 * for multi-step / multi-dialog requests (like changing 95 * the SIM pin). 96 */ showPinDialog()97 public void showPinDialog() { 98 showDialog(null); 99 } 100 } 101