| /* |
| * 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.setupwizardlib.items; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.Button; |
| import android.widget.LinearLayout; |
| |
| import com.android.setupwizardlib.R; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * A list item with one or more buttons, declared as |
| * {@link com.android.setupwizardlib.items.ButtonItem}. |
| * |
| * <p>Example usage: |
| * <pre>{@code |
| * <ButtonBarItem> |
| * |
| * <ButtonItem |
| * android:id="@+id/skip_button" |
| * android:text="@string/skip_button_label /> |
| * |
| * <ButtonItem |
| * android:id="@+id/next_button" |
| * android:text="@string/next_button_label |
| * android:theme="@style/SuwButtonItem.Colored" /> |
| * |
| * </ButtonBarItem> |
| * }</pre> |
| */ |
| public class ButtonBarItem extends AbstractItem implements ItemInflater.ItemParent { |
| |
| private final ArrayList<ButtonItem> mButtons = new ArrayList<>(); |
| private boolean mVisible = true; |
| |
| public ButtonBarItem() { |
| super(); |
| } |
| |
| public ButtonBarItem(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| @Override |
| public int getCount() { |
| return isVisible() ? 1 : 0; |
| } |
| |
| @Override |
| public boolean isEnabled() { |
| // The children buttons are enabled and clickable, but the item itself is not |
| return false; |
| } |
| |
| @Override |
| public int getLayoutResource() { |
| return R.layout.suw_items_button_bar; |
| } |
| |
| public void setVisible(boolean visible) { |
| mVisible = visible; |
| } |
| |
| public boolean isVisible() { |
| return mVisible; |
| } |
| |
| @Override |
| public int getViewId() { |
| return getId(); |
| } |
| |
| @Override |
| public void onBindView(View view) { |
| // Note: The efficiency could be improved by trying to recycle the buttons created by |
| // ButtonItem |
| final LinearLayout layout = (LinearLayout) view; |
| layout.removeAllViews(); |
| |
| for (ButtonItem buttonItem : mButtons) { |
| Button button = buttonItem.createButton(layout); |
| layout.addView(button); |
| } |
| |
| view.setId(getViewId()); |
| } |
| |
| @Override |
| public void addChild(ItemHierarchy child) { |
| if (child instanceof ButtonItem) { |
| mButtons.add((ButtonItem) child); |
| } else { |
| throw new UnsupportedOperationException("Cannot add non-button item to Button Bar"); |
| } |
| } |
| |
| @Override |
| public ItemHierarchy findItemById(int id) { |
| if (getId() == id) { |
| return this; |
| } |
| for (ButtonItem button : mButtons) { |
| final ItemHierarchy item = button.findItemById(id); |
| if (item != null) { |
| return item; |
| } |
| } |
| return null; |
| } |
| } |