128 lines
3.1 KiB
Java
128 lines
3.1 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.setupwizardlib.items;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.Button;
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import android.widget.LinearLayout;
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import com.android.setupwizardlib.R;
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import java.util.ArrayList;
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/**
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* A list item with one or more buttons, declared as {@link
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* com.android.setupwizardlib.items.ButtonItem}.
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*
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* <p>Example usage:
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*
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* <pre>{@code
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* <ButtonBarItem>
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*
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* <ButtonItem
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* android:id="@+id/skip_button"
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* android:text="@string/skip_button_label />
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*
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* <ButtonItem
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* android:id="@+id/next_button"
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* android:text="@string/next_button_label
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* android:theme="@style/SuwButtonItem.Colored" />
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*
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* </ButtonBarItem>
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* }</pre>
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*/
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public class ButtonBarItem extends AbstractItem implements ItemInflater.ItemParent {
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private final ArrayList<ButtonItem> buttons = new ArrayList<>();
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private boolean visible = true;
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public ButtonBarItem() {
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super();
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}
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public ButtonBarItem(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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@Override
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public int getCount() {
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return isVisible() ? 1 : 0;
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}
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@Override
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public boolean isEnabled() {
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// The children buttons are enabled and clickable, but the item itself is not
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return false;
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}
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@Override
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public int getLayoutResource() {
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return R.layout.suw_items_button_bar;
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}
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public void setVisible(boolean visible) {
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this.visible = visible;
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}
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public boolean isVisible() {
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return visible;
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}
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@Override
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public int getViewId() {
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return getId();
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}
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@Override
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public void onBindView(View view) {
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// Note: The efficiency could be improved by trying to recycle the buttons created by
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// ButtonItem
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final LinearLayout layout = (LinearLayout) view;
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layout.removeAllViews();
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for (ButtonItem buttonItem : buttons) {
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Button button = buttonItem.createButton(layout);
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layout.addView(button);
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}
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view.setId(getViewId());
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}
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@Override
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public void addChild(ItemHierarchy child) {
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if (child instanceof ButtonItem) {
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buttons.add((ButtonItem) child);
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} else {
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throw new UnsupportedOperationException("Cannot add non-button item to Button Bar");
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}
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}
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@Override
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public ItemHierarchy findItemById(int id) {
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if (getId() == id) {
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return this;
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}
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for (ButtonItem button : buttons) {
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final ItemHierarchy item = button.findItemById(id);
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if (item != null) {
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return item;
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}
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}
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return null;
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}
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}
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