| /* |
| * Copyright (C) 2016 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.tv.settings.connectivity; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| |
| import androidx.preference.PreferenceCategory; |
| |
| public class CollapsibleCategory extends PreferenceCategory { |
| |
| private static final int COLLAPSED_ITEM_COUNT = 3; |
| |
| private boolean mCollapsed = true; |
| |
| public CollapsibleCategory(Context context, AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| public CollapsibleCategory(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public CollapsibleCategory(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public CollapsibleCategory(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public int getPreferenceCount() { |
| if (mCollapsed && shouldShowCollapsePref()) { |
| return COLLAPSED_ITEM_COUNT; |
| } else { |
| return super.getPreferenceCount(); |
| } |
| } |
| |
| public int getRealPreferenceCount() { |
| return super.getPreferenceCount(); |
| } |
| |
| /** |
| * Only show the collapse preference if the list would be longer than the collapsed list |
| * plus the collapse preference itself. |
| * |
| * @return true if collapse pref should be shown |
| */ |
| public boolean shouldShowCollapsePref() { |
| return super.getPreferenceCount() >= COLLAPSED_ITEM_COUNT + 1; |
| } |
| |
| public boolean isCollapsed() { |
| return mCollapsed; |
| } |
| |
| public void setCollapsed(boolean collapsed) { |
| mCollapsed = collapsed; |
| notifyHierarchyChanged(); |
| } |
| } |