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; 18 19 import android.app.AlertDialog; 20 import android.content.Context; 21 import android.preference.EditTextPreference; 22 import android.text.method.DigitsKeyListener; 23 import android.text.method.PasswordTransformationMethod; 24 import android.util.AttributeSet; 25 import android.view.View; 26 import android.widget.EditText; 27 28 import java.util.Map; 29 30 /** 31 * Class similar to the com.android.settings.EditPinPreference 32 * class, with a couple of modifications, including a different layout 33 * for the dialog. 34 */ 35 public class EditPinPreference extends EditTextPreference { 36 37 private boolean shouldHideButtons; 38 39 interface OnPinEnteredListener { onPinEntered(EditPinPreference preference, boolean positiveResult)40 void onPinEntered(EditPinPreference preference, boolean positiveResult); 41 } 42 43 private OnPinEnteredListener mPinListener; 44 setOnPinEnteredListener(OnPinEnteredListener listener)45 public void setOnPinEnteredListener(OnPinEnteredListener listener) { 46 mPinListener = listener; 47 } 48 EditPinPreference(Context context, AttributeSet attrs)49 public EditPinPreference(Context context, AttributeSet attrs) { 50 super(context, attrs); 51 } 52 EditPinPreference(Context context, AttributeSet attrs, int defStyle)53 public EditPinPreference(Context context, AttributeSet attrs, int defStyle) { 54 super(context, attrs, defStyle); 55 } 56 57 /** 58 * Overridden to setup the correct dialog layout, as well as setting up 59 * other properties for the pin / puk entry field. 60 */ 61 @Override onCreateDialogView()62 protected View onCreateDialogView() { 63 // set the dialog layout 64 setDialogLayoutResource(R.layout.pref_dialog_editpin); 65 66 View dialog = super.onCreateDialogView(); 67 68 // set the transformation method and the key listener to ensure 69 // correct input and presentation of the pin / puk. 70 final EditText textfield = getEditText(); 71 textfield.setTransformationMethod(PasswordTransformationMethod.getInstance()); 72 textfield.setKeyListener(DigitsKeyListener.getInstance()); 73 74 return dialog; 75 } 76 77 @Override onBindDialogView(View view)78 protected void onBindDialogView(View view) { 79 super.onBindDialogView(view); 80 81 // If the layout does not contain an edittext, hide the buttons. 82 shouldHideButtons = (view.findViewById(android.R.id.edit) == null); 83 } 84 85 @Override onPrepareDialogBuilder(AlertDialog.Builder builder)86 protected void onPrepareDialogBuilder(AlertDialog.Builder builder) { 87 super.onPrepareDialogBuilder(builder); 88 89 // hide the buttons if we need to. 90 if (shouldHideButtons) { 91 builder.setPositiveButton(null, this); 92 builder.setNegativeButton(null, this); 93 } 94 } 95 96 @Override onDialogClosed(boolean positiveResult)97 protected void onDialogClosed(boolean positiveResult) { 98 super.onDialogClosed(positiveResult); 99 if (mPinListener != null) { 100 mPinListener.onPinEntered(this, positiveResult); 101 } 102 } 103 104 /** 105 * Externally visible method to bring up the dialog to 106 * for multi-step / multi-dialog requests (like changing 107 * the SIM pin). 108 */ showPinDialog()109 public void showPinDialog() { 110 showDialog(null); 111 } 112 } 113