1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings;
import android.app.Dialog;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.util.AttributeSet;
import androidx.appcompat.app.AlertDialog.Builder;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentTransaction;
import androidx.preference.ListPreference;
import androidx.preference.ListPreferenceDialogFragmentCompat;
import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
public class CustomListPreference extends ListPreference {
public CustomListPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomListPreference(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
protected void onPrepareDialogBuilder(Builder builder,
DialogInterface.OnClickListener listener) {
}
protected void onDialogClosed(boolean positiveResult) {
}
protected void onDialogCreated(Dialog dialog) {
}
protected boolean isAutoClosePreference() {
return true;
}
/**
* Called when a user is about to choose the given value, to determine if we
* should show a confirmation dialog.
*
* @param value the value the user is about to choose
* @return the message to show in a confirmation dialog, or {@code null} to
* not request confirmation
*/
protected CharSequence getConfirmationMessage(String value) {
return null;
}
protected void onDialogStateRestored(Dialog dialog, Bundle savedInstanceState) {
}
public static class CustomListPreferenceDialogFragment extends
ListPreferenceDialogFragmentCompat {
private static final java.lang.String KEY_CLICKED_ENTRY_INDEX
= "settings.CustomListPrefDialog.KEY_CLICKED_ENTRY_INDEX";
private int mClickedDialogEntryIndex;
public static ListPreferenceDialogFragmentCompat newInstance(String key) {
final ListPreferenceDialogFragmentCompat fragment =
new CustomListPreferenceDialogFragment();
final Bundle b = new Bundle(1);
b.putString(ARG_KEY, key);
fragment.setArguments(b);
return fragment;
}
private CustomListPreference getCustomizablePreference() {
return (CustomListPreference) getPreference();
}
@Override
protected void onPrepareDialogBuilder(Builder builder) {
super.onPrepareDialogBuilder(builder);
mClickedDialogEntryIndex = getCustomizablePreference()
.findIndexOfValue(getCustomizablePreference().getValue());
getCustomizablePreference().onPrepareDialogBuilder(builder, getOnItemClickListener());
if (!getCustomizablePreference().isAutoClosePreference()) {
builder.setPositiveButton(R.string.okay, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
onItemChosen();
}
});
}
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Dialog dialog = super.onCreateDialog(savedInstanceState);
if (savedInstanceState != null) {
mClickedDialogEntryIndex = savedInstanceState.getInt(KEY_CLICKED_ENTRY_INDEX,
mClickedDialogEntryIndex);
}
getCustomizablePreference().onDialogCreated(dialog);
return dialog;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(KEY_CLICKED_ENTRY_INDEX, mClickedDialogEntryIndex);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
getCustomizablePreference().onDialogStateRestored(getDialog(), savedInstanceState);
}
protected DialogInterface.OnClickListener getOnItemClickListener() {
return new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
setClickedDialogEntryIndex(which);
if (getCustomizablePreference().isAutoClosePreference()) {
onItemChosen();
}
}
};
}
protected void setClickedDialogEntryIndex(int which) {
mClickedDialogEntryIndex = which;
}
private String getValue() {
final ListPreference preference = getCustomizablePreference();
if (mClickedDialogEntryIndex >= 0 && preference.getEntryValues() != null) {
return preference.getEntryValues()[mClickedDialogEntryIndex].toString();
} else {
return null;
}
}
/**
* Called when user has made a concrete item choice, but we might need
* to make a quick detour to confirm that choice with a second dialog.
*/
protected void onItemChosen() {
final CharSequence message = getCustomizablePreference()
.getConfirmationMessage(getValue());
if (message != null) {
final Fragment f = new ConfirmDialogFragment();
final Bundle args = new Bundle();
args.putCharSequence(Intent.EXTRA_TEXT, message);
f.setArguments(args);
f.setTargetFragment(CustomListPreferenceDialogFragment.this, 0);
final FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.add(f, getTag() + "-Confirm");
ft.commitAllowingStateLoss();
} else {
onItemConfirmed();
}
}
/**
* Called when user has made a concrete item choice and we've fully
* confirmed they want to move forward (if we took a detour above).
*/
protected void onItemConfirmed() {
onClick(getDialog(), DialogInterface.BUTTON_POSITIVE);
getDialog().dismiss();
}
@Override
public void onDialogClosed(boolean positiveResult) {
getCustomizablePreference().onDialogClosed(positiveResult);
final ListPreference preference = getCustomizablePreference();
final String value = getValue();
if (positiveResult && value != null) {
if (preference.callChangeListener(value)) {
preference.setValue(value);
}
}
}
}
public static class ConfirmDialogFragment extends InstrumentedDialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return new Builder(getActivity())
.setMessage(getArguments().getCharSequence(Intent.EXTRA_TEXT))
.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
final Fragment f = getTargetFragment();
if (f != null) {
((CustomListPreferenceDialogFragment) f).onItemConfirmed();
}
}
})
.setNegativeButton(android.R.string.cancel, null)
.create();
}
@Override
public int getMetricsCategory() {
return SettingsEnums.DIALOG_CUSTOM_LIST_CONFIRMATION;
}
}
}
|
