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.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 com.android.phone.R; 30 31 import java.util.Map; 32 33 /** 34 * Class similar to the com.android.settings.EditPinPreference 35 * class, with a couple of modifications, including a different layout 36 * for the dialog. 37 */ 38 public class EditPinPreference extends EditTextPreference { 39 40 private boolean shouldHideButtons; 41 42 /** 43 * Interface definition for a callback to be invoked when the PIN is entered. 44 */ 45 public interface OnPinEnteredListener { 46 /** 47 * Called when the dialog of {@link #EditPinPreference} is dismissed. 48 * 49 * @param preference the specified {@link #EditPinPreference} 50 * @param positiveResult Whether the positive button was clicked (true), or 51 * the negative button was clicked or the dialog was canceled (false). 52 */ onPinEntered(EditPinPreference preference, boolean positiveResult)53 void onPinEntered(EditPinPreference preference, boolean positiveResult); 54 } 55 56 private OnPinEnteredListener mPinListener; 57 setOnPinEnteredListener(OnPinEnteredListener listener)58 public void setOnPinEnteredListener(OnPinEnteredListener listener) { 59 mPinListener = listener; 60 } 61 EditPinPreference(Context context, AttributeSet attrs)62 public EditPinPreference(Context context, AttributeSet attrs) { 63 super(context, attrs); 64 } 65 EditPinPreference(Context context, AttributeSet attrs, int defStyle)66 public EditPinPreference(Context context, AttributeSet attrs, int defStyle) { 67 super(context, attrs, defStyle); 68 } 69 70 /** 71 * Overridden to setup the correct dialog layout, as well as setting up 72 * other properties for the pin / puk entry field. 73 */ 74 @Override onCreateDialogView()75 protected View onCreateDialogView() { 76 // set the dialog layout 77 setDialogLayoutResource(R.layout.pref_dialog_editpin); 78 79 View dialog = super.onCreateDialogView(); 80 81 getEditText().setInputType(InputType.TYPE_CLASS_NUMBER | 82 InputType.TYPE_NUMBER_VARIATION_PASSWORD); 83 84 return dialog; 85 } 86 87 @Override onBindDialogView(View view)88 protected void onBindDialogView(View view) { 89 super.onBindDialogView(view); 90 91 // If the layout does not contain an edittext, hide the buttons. 92 shouldHideButtons = (view.findViewById(android.R.id.edit) == null); 93 } 94 95 @Override onPrepareDialogBuilder(AlertDialog.Builder builder)96 protected void onPrepareDialogBuilder(AlertDialog.Builder builder) { 97 super.onPrepareDialogBuilder(builder); 98 99 // hide the buttons if we need to. 100 if (shouldHideButtons) { 101 builder.setPositiveButton(null, this); 102 builder.setNegativeButton(null, this); 103 } 104 } 105 106 @Override onDialogClosed(boolean positiveResult)107 protected void onDialogClosed(boolean positiveResult) { 108 super.onDialogClosed(positiveResult); 109 if (mPinListener != null) { 110 mPinListener.onPinEntered(this, positiveResult); 111 } 112 } 113 114 /** 115 * Externally visible method to bring up the dialog to 116 * for multi-step / multi-dialog requests (like changing 117 * the SIM pin). 118 */ showPinDialog()119 public void showPinDialog() { 120 showDialog(null); 121 } 122 } 123