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/*
* Copyright (C) 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settingslib.widget;
import android.content.Context;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.style.AbsoluteSizeSpan;
import android.util.AttributeSet;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import androidx.preference.Preference;
import androidx.preference.PreferenceViewHolder;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Progres bar preference with a usage summary and a total summary.
* This preference shows number in usage summary with enlarged font size.
*/
public class UsageProgressBarPreference extends Preference {
private final Pattern mNumberPattern = Pattern.compile("[\\d]*[\\.,]?[\\d]+");
private CharSequence mUsageSummary;
private CharSequence mTotalSummary;
private CharSequence mBottomSummary;
private ImageView mCustomImageView;
private int mPercent = -1;
/**
* Perform inflation from XML and apply a class-specific base style.
*
* @param context The {@link Context} this is associated with, through which it can
* access the current theme, resources, {@link SharedPreferences}, etc.
* @param attrs The attributes of the XML tag that is inflating the preference
* @param defStyle An attribute in the current theme that contains a reference to a style
* resource that supplies default values for the view. Can be 0 to not
* look for defaults.
*/
public UsageProgressBarPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setLayoutResource(R.layout.preference_usage_progress_bar);
}
/**
* Perform inflation from XML and apply a class-specific base style.
*
* @param context The {@link Context} this is associated with, through which it can
* access the current theme, resources, {@link SharedPreferences}, etc.
* @param attrs The attributes of the XML tag that is inflating the preference
*/
public UsageProgressBarPreference(Context context, AttributeSet attrs) {
super(context, attrs);
setLayoutResource(R.layout.preference_usage_progress_bar);
}
/**
* Constructor to create a preference.
*
* @param context The Context this is associated with.
*/
public UsageProgressBarPreference(Context context) {
this(context, null);
}
/** Set usage summary, number in the summary will show with enlarged font size. */
public void setUsageSummary(CharSequence usageSummary) {
if (TextUtils.equals(mUsageSummary, usageSummary)) {
return;
}
mUsageSummary = usageSummary;
notifyChanged();
}
/** Set total summary. */
public void setTotalSummary(CharSequence totalSummary) {
if (TextUtils.equals(mTotalSummary, totalSummary)) {
return;
}
mTotalSummary = totalSummary;
notifyChanged();
}
/** Set bottom summary. */
public void setBottomSummary(CharSequence bottomSummary) {
if (TextUtils.equals(mBottomSummary, bottomSummary)) {
return;
}
mBottomSummary = bottomSummary;
notifyChanged();
}
/** Set percentage of the progress bar. */
public void setPercent(long usage, long total) {
if (usage > total) {
return;
}
if (total == 0L) {
if (mPercent != 0) {
mPercent = 0;
notifyChanged();
}
return;
}
final int percent = (int) (usage / (double) total * 100);
if (mPercent == percent) {
return;
}
mPercent = percent;
notifyChanged();
}
/** Set custom ImageView to the right side of total summary. */
public <T extends ImageView> void setCustomContent(T imageView) {
if (imageView == mCustomImageView) {
return;
}
mCustomImageView = imageView;
notifyChanged();
}
/**
* Binds the created View to the data for this preference.
*
* <p>This is a good place to grab references to custom Views in the layout and set
* properties on them.
*
* <p>Make sure to call through to the superclass's implementation.
*
* @param holder The ViewHolder that provides references to the views to fill in. These views
* will be recycled, so you should not hold a reference to them after this method
* returns.
*/
@Override
public void onBindViewHolder(PreferenceViewHolder holder) {
super.onBindViewHolder(holder);
holder.setDividerAllowedAbove(false);
holder.setDividerAllowedBelow(false);
final TextView usageSummary = (TextView) holder.findViewById(R.id.usage_summary);
usageSummary.setText(enlargeFontOfNumber(mUsageSummary));
final TextView totalSummary = (TextView) holder.findViewById(R.id.total_summary);
if (mTotalSummary != null) {
totalSummary.setText(mTotalSummary);
}
final TextView bottomSummary = (TextView) holder.findViewById(R.id.bottom_summary);
if (TextUtils.isEmpty(mBottomSummary)) {
bottomSummary.setVisibility(View.GONE);
} else {
bottomSummary.setVisibility(View.VISIBLE);
bottomSummary.setText(mBottomSummary);
}
final ProgressBar progressBar = (ProgressBar) holder.findViewById(android.R.id.progress);
if (mPercent < 0) {
progressBar.setIndeterminate(true);
} else {
progressBar.setIndeterminate(false);
progressBar.setProgress(mPercent);
}
final FrameLayout customLayout = (FrameLayout) holder.findViewById(R.id.custom_content);
if (mCustomImageView == null) {
customLayout.removeAllViews();
customLayout.setVisibility(View.GONE);
} else {
customLayout.removeAllViews();
customLayout.addView(mCustomImageView);
customLayout.setVisibility(View.VISIBLE);
}
}
private CharSequence enlargeFontOfNumber(CharSequence summary) {
if (TextUtils.isEmpty(summary)) {
return "";
}
final Matcher matcher = mNumberPattern.matcher(summary);
if (matcher.find()) {
final SpannableString spannableSummary = new SpannableString(summary);
spannableSummary.setSpan(new AbsoluteSizeSpan(64, true /* dip */), matcher.start(),
matcher.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
return spannableSummary;
}
return summary;
}
}
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