1 /* 2 * Copyright (C) 2019 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.tv.twopanelsettings; 18 19 import android.animation.AnimatorInflater; 20 import android.os.Bundle; 21 import android.text.TextUtils; 22 import android.view.LayoutInflater; 23 import android.view.View; 24 import android.view.ViewGroup; 25 import android.widget.TextView; 26 27 import androidx.preference.DialogPreference; 28 import androidx.preference.ListPreference; 29 import androidx.preference.MultiSelectListPreference; 30 import androidx.recyclerview.widget.RecyclerView; 31 32 33 /** A workaround for pi-tv-dev to fix the issue that ListPreference is not correctly handled by two 34 * panel lib. When moving to Q, we should fix this problem in androidx(b/139085296). 35 */ 36 public class TwoPanelListPreferenceDialogFragment extends 37 LeanbackListPreferenceDialogFragmentCompat { 38 private static final String SAVE_STATE_IS_MULTI = 39 "LeanbackListPreferenceDialogFragment.isMulti"; 40 private static final String SAVE_STATE_ENTRIES = "LeanbackListPreferenceDialogFragment.entries"; 41 private static final String SAVE_STATE_ENTRY_VALUES = 42 "LeanbackListPreferenceDialogFragment.entryValues"; 43 private static final String SAVE_STATE_SUMMARIES = 44 "LeanbackListPreferenceDialogFragment.summaries"; 45 private static final String SAVE_STATE_INITIAL_SELECTION = 46 "LeanbackListPreferenceDialogFragment.initialSelection"; 47 private boolean mMultiCopy; 48 private CharSequence[] mEntriesCopy; 49 private CharSequence[] mEntryValuesCopy; 50 private CharSequence[] mSummariesCopy; 51 private String mInitialSelectionCopy; 52 53 /** Provide a ListPreferenceDialogFragment which satisfy the use of two panel lib **/ newInstanceSingle(String key)54 public static TwoPanelListPreferenceDialogFragment newInstanceSingle(String key) { 55 final Bundle args = new Bundle(1); 56 args.putString(ARG_KEY, key); 57 58 final TwoPanelListPreferenceDialogFragment 59 fragment = new TwoPanelListPreferenceDialogFragment(); 60 fragment.setArguments(args); 61 62 return fragment; 63 } 64 65 @Override onCreate(Bundle savedInstanceState)66 public void onCreate(Bundle savedInstanceState) { 67 super.onCreate(savedInstanceState); 68 if (savedInstanceState == null) { 69 final DialogPreference preference = getPreference(); 70 if (preference instanceof ListPreference) { 71 mMultiCopy = false; 72 mEntriesCopy = ((ListPreference) preference).getEntries(); 73 mEntryValuesCopy = ((ListPreference) preference).getEntryValues(); 74 if (preference instanceof SummaryListPreference) { 75 mSummariesCopy = ((SummaryListPreference) preference).getSummaries(); 76 } 77 mInitialSelectionCopy = ((ListPreference) preference).getValue(); 78 } else if (preference instanceof MultiSelectListPreference) { 79 mMultiCopy = true; 80 } else { 81 throw new IllegalArgumentException("Preference must be a ListPreference or " 82 + "MultiSelectListPreference"); 83 } 84 } else { 85 mMultiCopy = savedInstanceState.getBoolean(SAVE_STATE_IS_MULTI); 86 mEntriesCopy = savedInstanceState.getCharSequenceArray(SAVE_STATE_ENTRIES); 87 mEntryValuesCopy = savedInstanceState.getCharSequenceArray(SAVE_STATE_ENTRY_VALUES); 88 mSummariesCopy = savedInstanceState.getCharSequenceArray(SAVE_STATE_SUMMARIES); 89 if (!mMultiCopy) { 90 mInitialSelectionCopy = savedInstanceState.getString(SAVE_STATE_INITIAL_SELECTION); 91 } 92 } 93 } 94 95 @Override onViewCreated(View view, Bundle savedInstanceState)96 public void onViewCreated(View view, Bundle savedInstanceState) { 97 super.onViewCreated(view, savedInstanceState); 98 if (view != null) { 99 removeAnimationClipping(view); 100 ViewGroup mainFrame = view.findViewById(R.id.main_frame); 101 if (mainFrame != null) { 102 mainFrame.setOutlineProvider(null); 103 } 104 } 105 } 106 removeAnimationClipping(View v)107 protected void removeAnimationClipping(View v) { 108 if (v instanceof ViewGroup) { 109 ((ViewGroup) v).setClipChildren(false); 110 ((ViewGroup) v).setClipToPadding(false); 111 for (int index = 0; index < ((ViewGroup) v).getChildCount(); index++) { 112 View child = ((ViewGroup) v).getChildAt(index); 113 removeAnimationClipping(child); 114 } 115 } 116 } 117 118 @Override onCreateAdapter()119 public RecyclerView.Adapter onCreateAdapter() { 120 if (!mMultiCopy) { 121 return new TwoPanelAdapterSingle(mEntriesCopy, mEntryValuesCopy, mSummariesCopy, 122 mInitialSelectionCopy); 123 } 124 return super.onCreateAdapter(); 125 } 126 127 private class TwoPanelAdapterSingle extends RecyclerView.Adapter<ViewHolder> 128 implements OnItemClickListener { 129 private final CharSequence[] mEntries; 130 private final CharSequence[] mEntryValues; 131 private final CharSequence[] mSummaries; 132 private CharSequence mSelectedValue; 133 TwoPanelAdapterSingle(CharSequence[] entries, CharSequence[] entryValues, CharSequence[] summaries, CharSequence selectedValue)134 TwoPanelAdapterSingle(CharSequence[] entries, CharSequence[] entryValues, 135 CharSequence[] summaries, CharSequence selectedValue) { 136 mEntries = entries; 137 mEntryValues = entryValues; 138 mSummaries = summaries; 139 mSelectedValue = selectedValue; 140 } 141 142 @Override onCreateViewHolder(ViewGroup parent, int viewType)143 public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 144 final LayoutInflater inflater = LayoutInflater.from(parent.getContext()); 145 final View view = inflater.inflate(R.layout.leanback_list_preference_item_single, 146 parent, false); 147 return new ViewHolder(view, this); 148 } 149 150 @Override onBindViewHolder(ViewHolder holder, int position)151 public void onBindViewHolder(ViewHolder holder, int position) { 152 holder.getWidgetView().setChecked(mEntryValues[position].equals(mSelectedValue)); 153 holder.getTitleView().setText(mEntries[position]); 154 holder.itemView.setStateListAnimator(AnimatorInflater.loadStateListAnimator( 155 getContext(), R.animator.preference)); 156 TextView summaryView = (TextView) holder.getContainer() 157 .findViewById(android.R.id.summary); 158 if (summaryView != null) { 159 if (mSummaries != null && !TextUtils.isEmpty(mSummaries[position])) { 160 summaryView.setText(mSummaries[position]); 161 summaryView.setVisibility(View.VISIBLE); 162 } else { 163 summaryView.setVisibility(View.GONE); 164 } 165 } 166 } 167 168 @Override getItemCount()169 public int getItemCount() { 170 return mEntries.length; 171 } 172 173 @Override onItemClick(ViewHolder viewHolder)174 public void onItemClick(ViewHolder viewHolder) { 175 final int index = viewHolder.getAdapterPosition(); 176 if (index == RecyclerView.NO_POSITION) { 177 return; 178 } 179 final CharSequence entry = mEntryValues[index]; 180 final ListPreference preference = (ListPreference) getPreference(); 181 if (index >= 0) { 182 String value = mEntryValues[index].toString(); 183 if (preference.callChangeListener(value)) { 184 preference.setValue(value); 185 mSelectedValue = entry; 186 } 187 } 188 189 if (getParentFragment() instanceof TwoPanelSettingsFragment) { 190 TwoPanelSettingsFragment parent = (TwoPanelSettingsFragment) getParentFragment(); 191 parent.navigateBack(); 192 } 193 notifyDataSetChanged(); 194 } 195 } 196 } 197