| /* |
| * 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; |
| } |
| } |
| } |