135 lines
3.6 KiB
Dart
135 lines
3.6 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'package:get/get.dart';
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import 'dart:math';
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class Utils {
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static Utils? _instance;
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Utils._internal();
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static Utils getInstance() {
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_instance ??= Utils._internal();
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return _instance!;
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}
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/// 关闭键盘
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static void hideKeyboard() {
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FocusScopeNode? currentFocus = Get.focusScope?.nearestScope;
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if (currentFocus == null) {
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return;
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}
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if (!currentFocus.hasPrimaryFocus && currentFocus.focusedChild != null) {
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FocusManager.instance.primaryFocus?.unfocus();
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}
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}
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void setTimeOut(int seconds, call) => Future.delayed(Duration(seconds: seconds), call);
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Future<dynamic> setTimeOutMilliseconds(int milliseconds, call) => Future.delayed(Duration(milliseconds: milliseconds), call);
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// 是否是平板
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static bool isPad([double mobilePhoneScale = 1.2]) {
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return ScreenUtil().scaleWidth > mobilePhoneScale;
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}
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static String getDoubleRemoveZero(double? val, [String? defaultVal]) {
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try {
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if (val == null) throw Exception('数据为空');
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List<String> _valArr = val.toString().split('.');
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if (_valArr.length >= 2) {
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if (int.parse(_valArr[1]) == 0) {
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return val.toInt().toString();
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}
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return val.toString();
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}
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return val.toInt().toString();
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} catch (e) {
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return defaultVal ?? '';
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}
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}
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/// 去除小数点
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static String doubleToStringAsFixed(double val, {int fractionDigits = 2}) {
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return val.toStringAsFixed(fractionDigits).replaceAll(RegExp(r'\.0*$'), '');
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}
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static calcRate(int divisor, int dividend) {
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if (dividend != 0) {
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return ((100 * divisor) / dividend);
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// return ((100 * divisor) / dividend).toStringAsFixed(0);
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} else {
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return 0.0;
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}
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}
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/// 秒转时分秒
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static String second2HMS(int sec, {bool isEasy = false}) {
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String hms = "0";
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if (!isEasy) hms = "0秒";
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if (sec > 0) {
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int h = sec ~/ 3600;
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int m = (sec % 3600) ~/ 60;
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int s = sec % 60;
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if (h > 0) {
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hms = "$h时$m分$s秒";
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} else {
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if (m > 0) {
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hms = "$m分$s秒";
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} else {
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hms = "$s秒";
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}
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}
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}
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return hms;
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}
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static DateTime getWeekStartDate() {
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DateTime now = DateTime.now();
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int dayOfWeek = now.weekday; // 获取今天是周几（1代表周一，7代表周日）
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int diff = dayOfWeek - 1; // 计算今天距离周一的天数差
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if (diff < 0) {
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diff += 7; // 如果是周日，则需要加上一周的天数
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}
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return now.subtract(Duration(days: diff)); // 减去天数差，得到本周一的时间
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}
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static DateTime getWeekEndDate() {
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DateTime now = DateTime.now();
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int dayOfWeek = now.weekday; // 获取今天是周几
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int diff = 7 - dayOfWeek; // 计算今天距离周日的天数差
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if (diff == 0) {
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diff = 7; // 如果是周日，则加上一周的天数
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}
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return now.add(Duration(days: diff)); // 加上天数差减一，得到本周日的时间
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}
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static String getQuestionSource(int type) {
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var str = '';
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switch (type) {
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case 1:
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str = '预习';
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break;
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case 3:
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str = '复习';
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break;
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case 4:
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str = '作业';
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break;
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case 5:
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str = '考试';
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break;
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}
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return str;
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}
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}
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// 是否是平板
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bool isPad([double mobilePhoneScale = 1.2]) {
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return ScreenUtil().scaleWidth > mobilePhoneScale;
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}
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void toUpState(Function(void Function()) setState, VoidCallback fn, bool mounted) {
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if (mounted) setState(fn);
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}
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