chinwag/chinwag-android
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Replace shortNumber() with formatNumber() (#3519)

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formatNumber() was existing code to show numbers with suffixes like K, M, etc, so re-use that code and delete shortNumber().

Update the tests to (a) test formatNumber(), and (b) be parameterised.
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Nik Clayton 2023-06-10 16:29:26 +02:00 • committed by GitHub
commit 071e00774e
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5 changed files with 78 additions and 78 deletions
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2
app/src/main/java/com/keylesspalace/tusky/adapter/StatusBaseViewHolder.java
View file

@ -397,7 +397,7 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
if (replyCountLabel == null) return;
if (fullStats) {
replyCountLabel.setText(NumberUtils.shortNumber(repliesCount));
replyCountLabel.setText(NumberUtils.formatNumber(repliesCount, 1000));
return;
}

4
app/src/main/java/com/keylesspalace/tusky/adapter/StatusViewHolder.java
View file

@ -114,11 +114,11 @@ public class StatusViewHolder extends StatusBaseViewHolder {
}
protected void setReblogsCount(int reblogsCount) {
reblogsCountLabel.setText(NumberUtils.shortNumber(reblogsCount));
reblogsCountLabel.setText(NumberUtils.formatNumber(reblogsCount, 1000));
}
protected void setFavouritedCount(int favouritedCount) {
favouritedCountLabel.setText(NumberUtils.shortNumber(favouritedCount));
favouritedCountLabel.setText(NumberUtils.formatNumber(favouritedCount, 1000));
}
protected void hideStatusInfo() {

25
app/src/main/java/com/keylesspalace/tusky/adapter/TrendingTagViewHolder.kt
View file

@ -20,10 +20,8 @@ import com.keylesspalace.tusky.R
import com.keylesspalace.tusky.databinding.ItemTrendingCellBinding
import com.keylesspalace.tusky.entity.TrendingTagHistory
import com.keylesspalace.tusky.interfaces.LinkListener
import com.keylesspalace.tusky.util.formatNumber
import com.keylesspalace.tusky.viewdata.TrendingViewData
import java.text.NumberFormat
import kotlin.math.ln
import kotlin.math.pow
class TrendingTagViewHolder(
private val binding: ItemTrendingCellBinding
@ -70,25 +68,4 @@ class TrendingTagViewHolder(
itemView.contentDescription =
itemView.context.getString(R.string.accessibility_talking_about_tag, totalAccounts, tag)
}
companion object {
private val numberFormatter: NumberFormat = NumberFormat.getInstance()
private val ln_1k = ln(1000.0)
/**
* Format numbers according to the current locale. Numbers < min have
* separators (',', '.', etc) inserted according to the locale.
*
* Numbers > min are scaled down to that by multiples of 1,000, and
* a suffix appropriate to the scaling is appended.
*/
private fun formatNumber(num: Long, min: Int = 100000): String {
if (num < min) return numberFormatter.format(num)
val exp = (ln(num.toDouble()) / ln_1k).toInt()
// TODO: is the choice of suffixes here locale-agnostic?
return String.format("%.1f %c", num / 1000.0.pow(exp.toDouble()), "KMGTPE"[exp - 1])
}
}
}

36
app/src/main/java/com/keylesspalace/tusky/util/NumberUtils.kt
View file

@ -2,25 +2,27 @@
package com.keylesspalace.tusky.util
import java.text.DecimalFormat
import java.text.NumberFormat
import kotlin.math.abs
import kotlin.math.floor
import kotlin.math.log10
import kotlin.math.ln
import kotlin.math.pow
import kotlin.math.sign
val shortLetters = arrayOf(' ', 'K', 'M', 'B', 'T', 'P', 'E')
private val numberFormatter: NumberFormat = NumberFormat.getInstance()
private val ln_1k = ln(1000.0)
fun shortNumber(number: Number): String {
val numberAsDouble = number.toDouble()
val nonNegativeValue = abs(numberAsDouble)
var sign = ""
if (numberAsDouble.sign < 0) { sign = "-" }
val value = floor(log10(nonNegativeValue)).toInt()
val base = value / 3
if (value >= 3 && base < shortLetters.size) {
return DecimalFormat("$sign#0.0").format(nonNegativeValue / 10.0.pow((base * 3).toDouble())) + shortLetters[base]
} else {
return DecimalFormat("$sign#,##0").format(nonNegativeValue)
}
/**
* Format numbers according to the current locale. Numbers < min have
* separators (',', '.', etc) inserted according to the locale.
*
* Numbers >= min are scaled down to that by multiples of 1,000, and
* a suffix appropriate to the scaling is appended.
*/
fun formatNumber(num: Long, min: Int = 100000): String {
val absNum = abs(num)
if (absNum < min) return numberFormatter.format(num)
val exp = (ln(absNum.toDouble()) / ln_1k).toInt()
// Suffixes here are locale-agnostic
return String.format("%.1f%c", num / 1000.0.pow(exp.toDouble()), "KMGTPE"[exp - 1])
}