156 lines
4.6 KiB
Java
156 lines
4.6 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.annotation.SuppressLint;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.view.ContextThemeWrapper;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.Button;
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import com.android.setupwizardlib.R;
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/**
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* Description of a button inside {@link com.android.setupwizardlib.items.ButtonBarItem}. This item
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* will not be bound by the adapter, and must be a child of {@code ButtonBarItem}.
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*/
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public class ButtonItem extends AbstractItem implements View.OnClickListener {
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public interface OnClickListener {
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void onClick(ButtonItem item);
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}
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private boolean enabled = true;
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private CharSequence text;
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private int theme = R.style.SuwButtonItem;
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private OnClickListener listener;
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private Button button;
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public ButtonItem() {
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super();
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}
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public ButtonItem(Context context, AttributeSet attrs) {
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super(context, attrs);
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SuwButtonItem);
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enabled = a.getBoolean(R.styleable.SuwButtonItem_android_enabled, true);
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text = a.getText(R.styleable.SuwButtonItem_android_text);
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theme = a.getResourceId(R.styleable.SuwButtonItem_android_theme, R.style.SuwButtonItem);
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a.recycle();
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}
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public void setOnClickListener(OnClickListener listener) {
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this.listener = listener;
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}
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public void setText(CharSequence text) {
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this.text = text;
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}
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public CharSequence getText() {
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return text;
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}
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/**
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* The theme to use for this button. This can be used to create button of a particular style (e.g.
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* a colored or borderless button). Typically {@code android:buttonStyle} will be set in the theme
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* to change the style applied by the button.
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*
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* @param theme Resource ID of the theme
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*/
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public void setTheme(int theme) {
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this.theme = theme;
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button = null;
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}
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/** @return Resource ID of the theme used by this button. */
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public int getTheme() {
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return theme;
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}
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public void setEnabled(boolean enabled) {
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this.enabled = enabled;
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}
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@Override
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public int getCount() {
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return 0;
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}
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@Override
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public boolean isEnabled() {
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return enabled;
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}
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@Override
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public int getLayoutResource() {
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return 0;
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}
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/** Do not use this since ButtonItem is not directly part of a list. */
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@Override
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public final void onBindView(View view) {
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throw new UnsupportedOperationException("Cannot bind to ButtonItem's view");
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}
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/**
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* Create a button according to this button item.
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*
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* @param parent The parent of the button, used to retrieve the theme and context for this button.
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* @return A button that can be added to the parent.
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*/
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protected Button createButton(ViewGroup parent) {
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if (button == null) {
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Context context = parent.getContext();
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if (theme != 0) {
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context = new ContextThemeWrapper(context, theme);
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}
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button = createButton(context);
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button.setOnClickListener(this);
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} else {
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if (button.getParent() instanceof ViewGroup) {
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// A view cannot be added to a different parent if one already exists. Remove this
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// button from its parent before returning.
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((ViewGroup) button.getParent()).removeView(button);
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}
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}
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button.setEnabled(enabled);
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button.setText(text);
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button.setId(getViewId());
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return button;
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}
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@SuppressLint("InflateParams") // This is used similar to Button(Context), so it's OK to not
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// specify the parent.
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private Button createButton(Context context) {
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// Inflate a single button from XML, so that when using support lib, it will take advantage
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// of the injected layout inflater and give us AppCompatButton instead.
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return (Button) LayoutInflater.from(context).inflate(R.layout.suw_button, null, false);
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}
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@Override
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public void onClick(View v) {
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if (listener != null) {
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listener.onClick(this);
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}
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}
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}
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