61 lines
1.7 KiB
Dart
61 lines
1.7 KiB
Dart
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class FormatterUtils {
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static String getFileSizeDescription(int size) {
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StringBuffer bytes = new StringBuffer();
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if (size >= 1024 * 1024 * 1024) {
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double i = (size / (1024.00 * 1024.00 * 1024.00));
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bytes..write(i.toStringAsFixed(2))..write("G");
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} else if (size >= 1024 * 1024) {
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double i = (size / (1024.00 * 1024.00));
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bytes..write(i.toStringAsFixed(2))..write("M");
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} else if (size >= 1024) {
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double i = (size / (1024.00));
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bytes..write(i.toStringAsFixed(2))..write("K");
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} else if (size < 1024) {
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if (size <= 0) {
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bytes.write("0B");
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} else {
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bytes..write(size)..write("B");
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}
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}
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return bytes.toString();
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}
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///格式化毫秒数为 xx:xx:xx这样的时间格式。
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static String getTimeformatByMs(int ms) {
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if (ms == null) {
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return "00:00:00";
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}
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int seconds = (ms / 1000).round();
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int finalSec = seconds % 60;
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int finalMin = (seconds / 60 % 60).floor();
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int finalHour = (seconds / 3600).round();
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StringBuffer msBuilder = new StringBuffer("");
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if (finalHour > 9) {
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msBuilder..write(finalHour)..write(":");
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} else if (finalHour > 0) {
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msBuilder..write("0")..write(finalHour)..write(":");
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} else {
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msBuilder..write("00")..write(":");
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}
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if (finalMin > 9) {
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msBuilder..write(finalMin)..write(":");
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} else if (finalMin > 0) {
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msBuilder..write("0")..write(finalMin)..write(":");
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} else {
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msBuilder..write("00")..write(":");
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}
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if (finalSec > 9) {
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msBuilder..write(finalSec);
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} else if (finalSec > 0) {
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msBuilder..write("0")..write(finalSec);
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} else {
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msBuilder.write("00");
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}
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return msBuilder.toString();
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}
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}
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