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