4860e4ee48
Test: make setup-wizard-lib Bug: 76692459 Change-Id: I40171e973d442b1a1815e9e7d7c2cc984cb38bac
144 lines
5 KiB
Java
144 lines
5 KiB
Java
/*
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* Copyright (C) 2015 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.view;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Color;
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import android.os.Build.VERSION_CODES;
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import android.util.AttributeSet;
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import android.view.ContextThemeWrapper;
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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 androidx.annotation.StyleableRes;
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import com.android.setupwizardlib.R;
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/**
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* Custom navigation bar for use with setup wizard. This bar contains a back button, more button and
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* next button. By default, the more button is hidden, and typically the next button will be hidden
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* if the more button is shown.
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*
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* @see com.android.setupwizardlib.template.RequireScrollMixin
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*/
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public class NavigationBar extends LinearLayout implements View.OnClickListener {
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/**
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* An interface to listen to events of the navigation bar, namely when the user clicks on the
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* back or next button.
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*/
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public interface NavigationBarListener {
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void onNavigateBack();
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void onNavigateNext();
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}
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private static int getNavbarTheme(Context context) {
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// Normally we can automatically guess the theme by comparing the foreground color against
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// the background color. But we also allow specifying explicitly using suwNavBarTheme.
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TypedArray attributes = context.obtainStyledAttributes(
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new int[] {
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R.attr.suwNavBarTheme,
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android.R.attr.colorForeground,
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android.R.attr.colorBackground });
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@StyleableRes int suwNavBarTheme = 0;
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@StyleableRes int colorForeground = 1;
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@StyleableRes int colorBackground = 2;
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int theme = attributes.getResourceId(suwNavBarTheme, 0);
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if (theme == 0) {
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// Compare the value of the foreground against the background color to see if current
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// theme is light-on-dark or dark-on-light.
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float[] foregroundHsv = new float[3];
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float[] backgroundHsv = new float[3];
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Color.colorToHSV(attributes.getColor(colorForeground, 0), foregroundHsv);
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Color.colorToHSV(attributes.getColor(colorBackground, 0), backgroundHsv);
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boolean isDarkBg = foregroundHsv[2] > backgroundHsv[2];
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theme = isDarkBg ? R.style.SuwNavBarThemeDark : R.style.SuwNavBarThemeLight;
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}
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attributes.recycle();
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return theme;
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}
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private static Context getThemedContext(Context context) {
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final int theme = getNavbarTheme(context);
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return new ContextThemeWrapper(context, theme);
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}
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private Button mNextButton;
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private Button mBackButton;
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private Button mMoreButton;
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private NavigationBarListener mListener;
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public NavigationBar(Context context) {
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super(getThemedContext(context));
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init();
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}
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public NavigationBar(Context context, AttributeSet attrs) {
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super(getThemedContext(context), attrs);
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init();
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}
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@TargetApi(VERSION_CODES.HONEYCOMB)
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public NavigationBar(Context context, AttributeSet attrs, int defStyleAttr) {
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super(getThemedContext(context), attrs, defStyleAttr);
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init();
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}
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// All the constructors delegate to this init method. The 3-argument constructor is not
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// available in LinearLayout before v11, so call super with the exact same arguments.
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private void init() {
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View.inflate(getContext(), R.layout.suw_navbar_view, this);
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mNextButton = (Button) findViewById(R.id.suw_navbar_next);
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mBackButton = (Button) findViewById(R.id.suw_navbar_back);
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mMoreButton = (Button) findViewById(R.id.suw_navbar_more);
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}
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public Button getBackButton() {
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return mBackButton;
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}
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public Button getNextButton() {
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return mNextButton;
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}
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public Button getMoreButton() {
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return mMoreButton;
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}
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public void setNavigationBarListener(NavigationBarListener listener) {
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mListener = listener;
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if (mListener != null) {
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getBackButton().setOnClickListener(this);
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getNextButton().setOnClickListener(this);
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}
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}
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@Override
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public void onClick(View view) {
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if (mListener != null) {
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if (view == getBackButton()) {
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mListener.onNavigateBack();
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} else if (view == getNextButton()) {
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mListener.onNavigateNext();
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}
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}
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}
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}
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