fix: 首次提交
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/*
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* Copyright (C) 2019 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.settingslib.widget;
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import android.view.View;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.StringRes;
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import java.util.ArrayList;
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import java.util.List;
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import com.android.settingslib.widget.preference.barchart.R;
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/**
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* BarChartInfo is responsible for storing information about {@link BarChartPreference}.
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*/
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public class BarChartInfo {
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@StringRes
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private final int mTitle;
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@StringRes
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private final int mDetails;
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@StringRes
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private final int mEmptyText;
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private final View.OnClickListener mDetailsOnClickListener;
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private BarViewInfo[] mBarViewInfos;
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/**
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* Gets the resource id for the title shown in {@link BarChartPreference}.
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*
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* @return the string resource id for title.
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*/
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public int getTitle() {
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return mTitle;
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}
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/**
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* Gets the resource id for the details shown in {@link BarChartPreference}.
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*
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* @return the string resource id for details.
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*/
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public int getDetails() {
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return mDetails;
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}
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/**
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* Gets the resource id for the empty text shown in {@link BarChartPreference} when there is no
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* any bar view in {@link BarChartPreference}.
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*
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* @return the string resource id for empty text.
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*/
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public int getEmptyText() {
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return mEmptyText;
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}
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/**
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* Gets the click listener for the details view.
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*
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* @return click listener for details view.
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*/
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public View.OnClickListener getDetailsOnClickListener() {
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return mDetailsOnClickListener;
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}
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/**
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* Gets an array which contains up to four {@link BarViewInfo}
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*
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* @return an array holding the current all {@link BarViewInfo} state of the bar chart.
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*/
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public BarViewInfo[] getBarViewInfos() {
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return mBarViewInfos;
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}
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void setBarViewInfos(BarViewInfo[] barViewInfos) {
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mBarViewInfos = barViewInfos;
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}
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private BarChartInfo(Builder builder) {
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mTitle = builder.mTitle;
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mDetails = builder.mDetails;
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mEmptyText = builder.mEmptyText;
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mDetailsOnClickListener = builder.mDetailsOnClickListener;
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if (builder.mBarViewInfos != null) {
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mBarViewInfos = builder.mBarViewInfos.stream().toArray(BarViewInfo[]::new);
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}
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}
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/**
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* Builder class for {@link BarChartInfo}
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*/
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public static class Builder {
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@StringRes
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private int mTitle;
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@StringRes
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private int mDetails;
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@StringRes
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private int mEmptyText;
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private View.OnClickListener mDetailsOnClickListener;
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private List<BarViewInfo> mBarViewInfos;
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/**
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* Creates an instance of a {@link BarChartInfo} based on the current builder settings.
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*
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* @return The {@link BarChartInfo}.
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*/
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public BarChartInfo build() {
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if (mTitle == 0) {
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throw new IllegalStateException("You must call Builder#setTitle() once.");
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}
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return new BarChartInfo(this);
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}
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/**
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* Sets the string resource id for the title.
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*/
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public Builder setTitle(@StringRes int title) {
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mTitle = title;
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return this;
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}
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/**
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* Sets the string resource id for the details.
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*/
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public Builder setDetails(@StringRes int details) {
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mDetails = details;
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return this;
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}
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/**
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* Sets the string resource id for the empty text.
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*/
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public Builder setEmptyText(@StringRes int emptyText) {
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mEmptyText = emptyText;
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return this;
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}
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/**
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* Sets the click listener for details view.
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*/
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public Builder setDetailsOnClickListener(
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@Nullable View.OnClickListener clickListener) {
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mDetailsOnClickListener = clickListener;
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return this;
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}
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/**
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* Adds a {@link BarViewInfo} for {@link BarChartPreference}.
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* Maximum of 4 {@link BarViewInfo} can be added.
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*/
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public Builder addBarViewInfo(@NonNull BarViewInfo barViewInfo) {
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if (mBarViewInfos == null) {
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mBarViewInfos = new ArrayList<>();
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}
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if (mBarViewInfos.size() >= BarChartPreference.MAXIMUM_BAR_VIEWS) {
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throw new IllegalStateException("We only support up to four bar views");
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}
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mBarViewInfos.add(barViewInfo);
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return this;
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}
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}
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}
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