fix: 首次提交
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/*
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* Copyright (C) 2021 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.content.Context;
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import android.text.SpannableString;
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import android.text.Spanned;
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import android.text.TextUtils;
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import android.text.style.AbsoluteSizeSpan;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import android.widget.ProgressBar;
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import android.widget.TextView;
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import androidx.preference.Preference;
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import androidx.preference.PreferenceViewHolder;
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import com.android.settingslib.widget.preference.usage.R;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Progres bar preference with a usage summary and a total summary.
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* This preference shows number in usage summary with enlarged font size.
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*/
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public class UsageProgressBarPreference extends Preference {
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private final Pattern mNumberPattern = Pattern.compile("[\\d]*[\\٫.,]?[\\d]+");
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private CharSequence mUsageSummary;
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private CharSequence mTotalSummary;
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private CharSequence mBottomSummary;
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private ImageView mCustomImageView;
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private int mPercent = -1;
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/**
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* Perform inflation from XML and apply a class-specific base style.
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*
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* @param context The {@link Context} this is associated with, through which it can
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* access the current theme, resources, {@link SharedPreferences}, etc.
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* @param attrs The attributes of the XML tag that is inflating the preference
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* @param defStyle An attribute in the current theme that contains a reference to a style
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* resource that supplies default values for the view. Can be 0 to not
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* look for defaults.
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*/
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public UsageProgressBarPreference(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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setLayoutResource(R.layout.preference_usage_progress_bar);
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}
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/**
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* Perform inflation from XML and apply a class-specific base style.
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*
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* @param context The {@link Context} this is associated with, through which it can
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* access the current theme, resources, {@link SharedPreferences}, etc.
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* @param attrs The attributes of the XML tag that is inflating the preference
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*/
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public UsageProgressBarPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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setLayoutResource(R.layout.preference_usage_progress_bar);
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}
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/**
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* Constructor to create a preference.
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*
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* @param context The Context this is associated with.
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*/
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public UsageProgressBarPreference(Context context) {
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this(context, null);
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}
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/** Set usage summary, number in the summary will show with enlarged font size. */
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public void setUsageSummary(CharSequence usageSummary) {
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if (TextUtils.equals(mUsageSummary, usageSummary)) {
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return;
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}
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mUsageSummary = usageSummary;
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notifyChanged();
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}
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/** Set total summary. */
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public void setTotalSummary(CharSequence totalSummary) {
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if (TextUtils.equals(mTotalSummary, totalSummary)) {
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return;
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}
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mTotalSummary = totalSummary;
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notifyChanged();
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}
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/** Set bottom summary. */
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public void setBottomSummary(CharSequence bottomSummary) {
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if (TextUtils.equals(mBottomSummary, bottomSummary)) {
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return;
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}
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mBottomSummary = bottomSummary;
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notifyChanged();
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}
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/** Set percentage of the progress bar. */
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public void setPercent(long usage, long total) {
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if (usage > total) {
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return;
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}
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if (total == 0L) {
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if (mPercent != 0) {
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mPercent = 0;
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notifyChanged();
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}
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return;
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}
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final int percent = (int) (usage / (double) total * 100);
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if (mPercent == percent) {
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return;
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}
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mPercent = percent;
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notifyChanged();
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}
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/** Set custom ImageView to the right side of total summary. */
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public <T extends ImageView> void setCustomContent(T imageView) {
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if (imageView == mCustomImageView) {
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return;
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}
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mCustomImageView = imageView;
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notifyChanged();
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}
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/**
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* Binds the created View to the data for this preference.
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*
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* <p>This is a good place to grab references to custom Views in the layout and set
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* properties on them.
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*
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* <p>Make sure to call through to the superclass's implementation.
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*
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* @param holder The ViewHolder that provides references to the views to fill in. These views
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* will be recycled, so you should not hold a reference to them after this method
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* returns.
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*/
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@Override
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public void onBindViewHolder(PreferenceViewHolder holder) {
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super.onBindViewHolder(holder);
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holder.setDividerAllowedAbove(false);
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holder.setDividerAllowedBelow(false);
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final TextView usageSummary = (TextView) holder.findViewById(R.id.usage_summary);
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usageSummary.setText(enlargeFontOfNumber(mUsageSummary));
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final TextView totalSummary = (TextView) holder.findViewById(R.id.total_summary);
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if (mTotalSummary != null) {
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totalSummary.setText(mTotalSummary);
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}
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final TextView bottomSummary = (TextView) holder.findViewById(R.id.bottom_summary);
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if (TextUtils.isEmpty(mBottomSummary)) {
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bottomSummary.setVisibility(View.GONE);
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} else {
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bottomSummary.setVisibility(View.VISIBLE);
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bottomSummary.setText(mBottomSummary);
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}
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final ProgressBar progressBar = (ProgressBar) holder.findViewById(android.R.id.progress);
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if (mPercent < 0) {
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progressBar.setIndeterminate(true);
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} else {
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progressBar.setIndeterminate(false);
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progressBar.setProgress(mPercent);
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}
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final FrameLayout customLayout = (FrameLayout) holder.findViewById(R.id.custom_content);
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if (mCustomImageView == null) {
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customLayout.removeAllViews();
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customLayout.setVisibility(View.GONE);
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} else {
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customLayout.removeAllViews();
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customLayout.addView(mCustomImageView);
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customLayout.setVisibility(View.VISIBLE);
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}
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}
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private CharSequence enlargeFontOfNumber(CharSequence summary) {
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if (TextUtils.isEmpty(summary)) {
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return "";
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}
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final Matcher matcher = mNumberPattern.matcher(summary);
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if (matcher.find()) {
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final SpannableString spannableSummary = new SpannableString(summary);
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spannableSummary.setSpan(new AbsoluteSizeSpan(64, true /* dip */), matcher.start(),
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matcher.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
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return spannableSummary;
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}
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return summary;
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}
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}
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