64 lines
1.5 KiB
Dart
64 lines
1.5 KiB
Dart
import 'dart:developer';
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import 'dart:io';
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import 'package:intl/intl.dart';
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import 'package:path_provider/path_provider.dart';
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class LogUtil {
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static LogUtil? _instance;
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LogUtil._();
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static LogUtil get instance => _instance ??= LogUtil._();
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Future<void> writeLog(String str) async {
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log("写入日记：$str");
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var date = DateFormat('yyyy-MM-dd HH:mm:ss.SSS').format(DateTime.now());
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var text = "\n${"[$date][LogUtil"}]: $str";
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final Directory directory = await getApplicationDocumentsDirectory();
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final File file = File('${directory.path}/data_log.txt');
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await file.writeAsString(text, mode: FileMode.append);
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}
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Future<void> clearLog() async {
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final Directory directory = await getApplicationDocumentsDirectory();
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final File file = File('${directory.path}/data_log.txt');
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await file.writeAsString("");
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}
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Future<String> readLog() async {
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String text="";
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try {
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final Directory directory = await getApplicationDocumentsDirectory();
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final File file = File('${directory.path}/data_log.txt');
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await file.readAsLines().then(
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(List<String> lines) {
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for (var line in lines) {
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if(text.isNotEmpty){
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text="$text\n\n$line";
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}else {
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text="$text$line";
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}
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}
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},
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);
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//text = await file.readAsString();
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} catch (e) {
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log("Couldn't read file");
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}
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log("读取日记：$text");
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return text;
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}
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}
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